[INFO] cloning repository https://github.com/Hoverbear/rust-rosetta [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hoverbear/rust-rosetta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHoverbear%2Frust-rosetta", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHoverbear%2Frust-rosetta'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 51519aad3be03384f3a57e2495dae70c70f537fc [INFO] checking Hoverbear/rust-rosetta/51519aad3be03384f3a57e2495dae70c70f537fc against master#0f442e265c165c0a78633bef98de18517815150c for pr-129073 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHoverbear%2Frust-rosetta" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Hoverbear/rust-rosetta on toolchain 0f442e265c165c0a78633bef98de18517815150c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f442e265c165c0a78633bef98de18517815150c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain [INFO] started tweaking git repo https://github.com/Hoverbear/rust-rosetta [INFO] finished tweaking git repo https://github.com/Hoverbear/rust-rosetta [INFO] tweaked toml for git repo https://github.com/Hoverbear/rust-rosetta written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Hoverbear/rust-rosetta already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f442e265c165c0a78633bef98de18517815150c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/longest-common-subsequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sockets/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/doubly-linked-list/element-insertion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/averages/mean-angle/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/floyd-warshall-algorithm/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/associative-array/creation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/boolean-values/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/generic-swap/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/keyboard-input/obtain-a-y-or-n-response/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/return-multiple-values/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/shell-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/ackermann-function/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hello-world/standard-error/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/assertions/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/flipping-bits-game/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/roman-numerals/encode/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/fibonacci-n-step-number-sequences/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/horners-rule-for-polynomial-evaluation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/_9-billion-names-of-god-the-integer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/quine/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/arrays/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/define-a-primitive-data-type/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sleep/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/huffman-coding/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/roots-of-a-function/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/bulls-and-cows/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/square-free-integers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hello-world/text/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/insertion-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/rot-13/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/reverse-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/execute-brainfuck/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/almost-prime/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/currying/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/balanced-brackets/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/json/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/levenshtein-distance/alignment/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/read-entire-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/apply-a-callback-to-an-array/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/knights-tour/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/_24-game/solve/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/array-concatenation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/knuth-shuffle/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/arithmetic/rational/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/menu/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/collections/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/jortsort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/merge-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/quicksort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/random-number-generator/device/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/guess-the-number/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/increment-a-numerical-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/singly-linked-list/traversal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/break/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/averages/arithmetic-mean/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sum-and-product-of-an-array/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sum-of-a-series/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/iban/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/empty-program/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/enforced-immutability/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/forest-fire/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sort-using-a-custom-comparator/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/csv-data-manipulation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/check-that-file-exists/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/execute-a-system-command/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/input-loop/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sha-256/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/chinese-remainder-theorem/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/jaro-distance/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sum-of-squares/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/tree-traversal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/additive-primes/addit_primes-flat/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/ethiopian-multiplication/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/lzw-compression/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/repeat/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/maximum-triangle-path-sum/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/anagrams/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/aks-test-for-primes/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/repeat-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/equilibrium-index/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/levenshtein-distance/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hofstadter-q-sequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/md5/implementation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hash-join/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/bitmap/write-a-ppm-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/character-codes/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/i-before-e-except-after-c/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/cartesian-product-of-two-or-more-lists/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/zero-to-the-zero-power/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/carmichael-3-strong-pseudoprimes/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/function-definition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/strip-comments-from-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/conways-game-of-life/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/general-fizzbuzz/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/generate-lower-case-ascii-alphabet/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/create-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hello-world/web-server/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/rosetta-code/find-bare-lang-tags/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/bogosort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/comb-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/walk-a-directory/non-recursively/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/combinations/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/best-shuffle/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/higher-order-functions/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/range-expansion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sort-an-integer-array/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/standard-deviation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/call-an-object-method/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/happy-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/singly-linked-list/element-definition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/even-or-odd/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/catalan-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/associative-array/iteration/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/aliquot-sequence-classifications/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/greatest-subsequential-sum/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/abstract-type/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/fast-fourier-transform/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/url-parser/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/fibonacci-word/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/greatest-element-of-a-list/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/bitwise-operations/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/check-input-device-is-a-terminal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/radix-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/environment-variables/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/chat-server/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/evaluate-binomial-coefficients/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hash-from-two-arrays/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/modular-inverse/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/infinite/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/foreach/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/iterated-digits-squaring/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/vector-products/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/date-format/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/the-twelve-days-of-christmas/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/averages/mode/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/gnome-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/middle-three-digits/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/letter-frequency/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/averages/median/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/take-notes-on-the-command-line/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/count-occurrences-of-a-substring/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/circles-of-given-radius-through-two-points/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/modular-exponentiation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/arena-storage-pool/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/greatest-common-divisor/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/word-wrap/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/fasta-format/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hello-world/newbie/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/additive-primes/addit_primes-primal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/bubble-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/ludic-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sequence-of-non-squares/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/dijkstras-algorithm/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/averages/simple-moving-average/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/vigenere-cipher/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/fork/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/read-a-specific-line-from-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sha-1/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/unbias-a-random-generator/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/user-input/text/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/string-comparison/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/guess-the-number/with-feedback/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/https/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/deal-cards-for-freecell/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/average-loop-length/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/convert-seconds-to-compound-duration/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/_15-puzzle-game/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/here-document/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/benfords-law/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sort-disjoint-sublist/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/formatted-numeric-output/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/map-range/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sort-an-array-of-composite-structures/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/pascals-triangle/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/metered-concurrency/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/synchronous-concurrency/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/pancake-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/short-circuit-evaluation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/execute-hq9-plus/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sieve-of-eratosthenes/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/delete-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/dining-philosophers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/heapsort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/read-a-file-line-by-line/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/pick-random-element/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/count-in-octal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/empty-directory/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/stack/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/file-input-output/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/echo-server/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/for-with-a-specified-step/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/digital-root/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/pythagorean-triples/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/flatten-a-list/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/factors-of-an-integer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/while/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/roman-numerals/decode/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/taxicab-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/abc-problem/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/host-introspection/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/parametric-polymorphism/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/abundant-deficient-and-perfect-number-classifications/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/file-size/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/https/authenticated/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hello-world/line-printer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/call-a-foreign-language-function/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/dns-query/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/roots-of-unity/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/vigenere-cipher-cryptanalysis/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/cocktail-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/apply-a-digital-filter/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/multiplication-tables/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/continue/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/remove-duplicate-elements/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/ulam-spiral-for-primes/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/temperature-conversion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/rock-paper-scissors/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/display-linear-combination/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/look-and-say-sequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/avl-tree/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/align-columns/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/power-set/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/zig-zag-matrix/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/reverse-words-in-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/palindrome-detection/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/n-plus-one-half/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/remove-lines-from-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sum-digits-of-an-integer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/evolutionary-algorithm/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/unicode-variable-names/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/downward-for/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/knapsack-problem/_0-1/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/copy-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/concurrent-computing/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/constrained-random-points-on-a-circle/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/five-weekends/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/wireworld/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loop-over-multiple-arrays-simultaneously/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/permutations-with-repetitions/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/execute-a-markov-algorithm/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/events/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/k-meanspp-clustering/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/man-or-boy-test/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/search-a-list/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/string-case/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/archimedean-spiral/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/primality-by-trial-division/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/enumerations/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/null-object/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/use-another-language-to-call-a-function/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/magic-squares-of-odd-order/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/write-entire-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/discordian-date/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/rosetta-code/fix-code-tags/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/generate-chess960-starting-position/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/determine-if-a-string-is-numeric/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/visualize-a-tree/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/check-output-device-is-a-terminal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/penneys-game/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/ordered-words/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sudoku/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/a-plus-b/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/price-fraction/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/binary-search/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/substring/top-and-tail/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/filter/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/nth/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/parallel-calculations/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/case-sensitivity-of-identifiers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/do-while/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/walk-a-directory/recursively/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/program-name/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/_100-doors/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/caesar-cipher/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hamming-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/cramers-rule/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/numerical-integration/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/determine-if-only-one-instance-is-running/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/truncate-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/stooge-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/langtons-ant/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/singly-linked-list/element-insertion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/permutation-test/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/eulers-sum-of-powers-conjecture/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/continued-fraction/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/harshad-or-niven-series/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/population-count/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/mutual-recursion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/continued-fraction/arithmetic/construct-from-rational-number/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/crc-32/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/kahan-summation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/playing-cards/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/day-of-the-week/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/metaprogramming/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/catamorphism/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/josephus-problem/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/y-combinator/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/pernicious-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/averages/mean-time-of-day/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/infinity/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/proper-divisors/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/anonymous-recursion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/binary-digits/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/address-of-a-variable/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/queue/definition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/leap-year/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/one-of-n-lines-in-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/self-describing-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/strip-whitespace-from-a-string/top-and-tail/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/entropy/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/gray-code/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/the-isaac-cipher/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/closures/value-capture/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/arbitrary-precision-integers-included/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/doubly-linked-list/element-definition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/averages/root-mean-square/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/bitcoin/address-validation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/lychrel-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/tic-tac-toe/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/jensens-device/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/string-length/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sum-multiples-of-3-and-5/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/thieles-interpolation-formula/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/accumulator-factory/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/find-limit-of-recursion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/arithmetic/complex/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/globally-replace-text-in-several-files/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/sleep-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/_99-bottles-of-beer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/real-constants-and-functions/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/string-matching/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/comma-quibbling/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/nested/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/comments/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/four-bit-adder/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/_24-game/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/closest-pair-problem/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/set/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/string-concatenation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/element-wise-operations/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/nth-root/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/string-interpolation-included/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/fibonacci-sequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/perfect-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/counting-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hello-world/newline-omission/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/integer-comparison/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/arithmetic/integer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/run-length-encoding/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/towers-of-hanoi/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/arithmetic-geometric-mean/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/http/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/sorting-algorithms/selection-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/range-extraction/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/include-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/prime-decomposition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/command-line-arguments/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/rename-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/bitmap/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/rsa-code/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/tokenize-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/statistics/basic/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/function-composition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/hailstone-sequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/fizzbuzz/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/guess-the-number/with-feedback-player/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/compound-data-type/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/integer-sequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/loops/for/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/dot-product/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/fibonacci-sequence/fib_seq-iter_successors/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/amicable-pairs/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/combinations-with-repetitions/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/md4/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/luhn-test-of-credit-card-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/tasks/array-length/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded security-framework-sys v2.1.1 [INFO] [stderr] Downloaded primal-bit v0.3.0 [INFO] [stderr] Downloaded factorial v0.2.1 [INFO] [stderr] Downloaded primal-check v0.3.1 [INFO] [stderr] Downloaded primal-estimate v0.3.1 [INFO] [stderr] Downloaded chrono-tz-build v0.1.0 [INFO] [stderr] Downloaded indoc v1.0.4 [INFO] [stderr] Downloaded raster v0.2.0 [INFO] [stderr] Downloaded iced_style v0.7.0 [INFO] [stderr] Downloaded primal-sieve v0.3.1 [INFO] [stderr] Downloaded bmp v0.5.0 [INFO] [stderr] Downloaded security-framework v2.1.1 [INFO] [stderr] Downloaded x11 v2.20.1 [INFO] [stderr] Downloaded iced_graphics v0.7.0 [INFO] [stderr] Downloaded gnuplot v0.0.37 [INFO] [stderr] Downloaded iced_native v0.9.1 [INFO] [stderr] Downloaded statrs v0.13.0 [INFO] [stderr] Downloaded pin-project-lite v0.2.5 [INFO] [stderr] Downloaded primal v0.3.1 [INFO] [stderr] Downloaded primes v0.3.0 [INFO] [stderr] Downloaded methods-enum v0.2.4 [INFO] [stderr] Downloaded winsafe v0.0.13 [INFO] [stderr] Downloaded iced_wgpu v0.9.0 [INFO] [stderr] Downloaded ord_subset v3.1.1 [INFO] [stderr] Downloaded md-5 v0.10.2 [INFO] [stderr] Downloaded iced_core v0.8.1 [INFO] [stderr] Downloaded iced_winit v0.8.0 [INFO] [stderr] Downloaded nalgebra v0.32.1 [INFO] [stderr] Downloaded iced v0.8.0 [INFO] [stderr] Downloaded chrono-tz v0.8.1 [INFO] [stderr] Downloaded decimal v2.0.4 [INFO] [stderr] Downloaded glium v0.32.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f442e265c165c0a78633bef98de18517815150c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ea96065b546bc4a424c4ad71c6b74160ba0708b8a9958d005c622d08d53b6a31 [INFO] running `Command { std: "docker" "start" "-a" "ea96065b546bc4a424c4ad71c6b74160ba0708b8a9958d005c622d08d53b6a31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ea96065b546bc4a424c4ad71c6b74160ba0708b8a9958d005c622d08d53b6a31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ea96065b546bc4a424c4ad71c6b74160ba0708b8a9958d005c622d08d53b6a31", kill_on_drop: false }` [INFO] [stdout] ea96065b546bc4a424c4ad71c6b74160ba0708b8a9958d005c622d08d53b6a31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f442e265c165c0a78633bef98de18517815150c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d5812b15bbd7c048864ce7b9b0f76bb812ccc4317aac6813e327a2ce43c5e53a [INFO] running `Command { std: "docker" "start" "-a" "d5812b15bbd7c048864ce7b9b0f76bb812ccc4317aac6813e327a2ce43c5e53a", kill_on_drop: false }` [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/factors-of-an-integer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/file-size/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/https/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/enumerations/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/almost-prime/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/gnome-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/tree-traversal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hofstadter-q-sequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sort-an-array-of-composite-structures/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/harshad-or-niven-series/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/generic-swap/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/knights-tour/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/singly-linked-list/element-definition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/iban/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/run-length-encoding/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/strip-comments-from-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/even-or-odd/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/self-describing-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/greatest-subsequential-sum/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sha-256/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/pancake-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/random-number-generator/device/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/read-a-specific-line-from-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/i-before-e-except-after-c/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/integer-comparison/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/additive-primes/addit_primes-primal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/chat-server/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/collections/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/conways-game-of-life/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/binary-digits/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/echo-server/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sum-digits-of-an-integer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/walk-a-directory/non-recursively/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/catalan-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/anagrams/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/display-linear-combination/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/integer-sequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/pythagorean-triples/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/the-isaac-cipher/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/dns-query/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/execute-hq9-plus/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/roots-of-a-function/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/square-free-integers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/case-sensitivity-of-identifiers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/numerical-integration/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/ordered-words/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/fasta-format/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/empty-program/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/tokenize-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/doubly-linked-list/element-definition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/four-bit-adder/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/element-wise-operations/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hash-join/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/input-loop/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/huffman-coding/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/iterated-digits-squaring/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/look-and-say-sequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/do-while/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/for/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/guess-the-number/with-feedback-player/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/enforced-immutability/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/day-of-the-week/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/repeat-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/walk-a-directory/recursively/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/heapsort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/greatest-element-of-a-list/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/roots-of-unity/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/character-codes/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/remove-lines-from-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/josephus-problem/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/one-of-n-lines-in-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sleep/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/zig-zag-matrix/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/aks-test-for-primes/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/execute-a-markov-algorithm/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/ulam-spiral-for-primes/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/wireworld/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/bitmap/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/url-parser/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/menu/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/for-with-a-specified-step/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/mutual-recursion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/cartesian-product-of-two-or-more-lists/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/a-plus-b/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/proper-divisors/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/sleep-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/chinese-remainder-theorem/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/closures/value-capture/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/entropy/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/carmichael-3-strong-pseudoprimes/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/strip-whitespace-from-a-string/top-and-tail/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/convert-seconds-to-compound-duration/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/rsa-code/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/eulers-sum-of-powers-conjecture/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/multiplication-tables/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hamming-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/bitwise-operations/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/pascals-triangle/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/merge-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/_9-billion-names-of-god-the-integer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/string-comparison/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/avl-tree/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/check-input-device-is-a-terminal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/closest-pair-problem/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/quicksort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/quine/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/horners-rule-for-polynomial-evaluation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/find-limit-of-recursion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/increment-a-numerical-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/counting-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/equilibrium-index/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/arithmetic/complex/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/man-or-boy-test/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/word-wrap/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/continued-fraction/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/power-set/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/prime-decomposition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/dot-product/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/delete-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/execute-a-system-command/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/unicode-variable-names/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sum-multiples-of-3-and-5/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/abc-problem/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/palindrome-detection/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/longest-common-subsequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/catamorphism/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/roman-numerals/encode/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/vigenere-cipher/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/rot-13/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/fizzbuzz/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/array-length/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/caesar-cipher/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/benfords-law/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/bogosort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/arithmetic-geometric-mean/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/array-concatenation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/copy-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/happy-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/_15-puzzle-game/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/nth/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/deal-cards-for-freecell/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/metered-concurrency/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/read-entire-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/string-concatenation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sum-of-a-series/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/greatest-common-divisor/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/arithmetic/integer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/nested/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/vector-products/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/visualize-a-tree/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/archimedean-spiral/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/cramers-rule/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sum-of-squares/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sockets/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/tic-tac-toe/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/lychrel-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/higher-order-functions/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/rock-paper-scissors/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/filter/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hello-world/line-printer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/parametric-polymorphism/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/ackermann-function/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/combinations/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/globally-replace-text-in-several-files/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/evolutionary-algorithm/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/vigenere-cipher-cryptanalysis/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/additive-primes/addit_primes-flat/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/events/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/read-a-file-line-by-line/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loop-over-multiple-arrays-simultaneously/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/permutation-test/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/command-line-arguments/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/averages/median/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/digital-root/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/letter-frequency/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/magic-squares-of-odd-order/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/generate-lower-case-ascii-alphabet/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/call-an-object-method/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/bitmap/write-a-ppm-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/compound-data-type/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/_100-doors/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/check-output-device-is-a-terminal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hello-world/newbie/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/apply-a-digital-filter/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/associative-array/iteration/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/define-a-primitive-data-type/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/aliquot-sequence-classifications/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/shell-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/search-a-list/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/singly-linked-list/traversal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/function-composition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/metaprogramming/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/playing-cards/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/general-fizzbuzz/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/concurrent-computing/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/take-notes-on-the-command-line/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/flatten-a-list/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/fork/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/luhn-test-of-credit-card-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/program-name/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/flipping-bits-game/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/dining-philosophers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hash-from-two-arrays/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/primality-by-trial-division/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/downward-for/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/penneys-game/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/unbias-a-random-generator/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/jensens-device/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/gray-code/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/averages/arithmetic-mean/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/synchronous-concurrency/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/levenshtein-distance/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/rename-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/perfect-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/short-circuit-evaluation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/call-a-foreign-language-function/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sieve-of-eratosthenes/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/queue/definition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/host-introspection/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/combinations-with-repetitions/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/_99-bottles-of-beer/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/the-twelve-days-of-christmas/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/reverse-words-in-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hello-world/newline-omission/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/date-format/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/arrays/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/function-definition/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/k-meanspp-clustering/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/check-that-file-exists/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/radix-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/rosetta-code/find-bare-lang-tags/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/evaluate-binomial-coefficients/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/kahan-summation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/formatted-numeric-output/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hello-world/standard-error/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/align-columns/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/modular-exponentiation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/binary-search/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sort-using-a-custom-comparator/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/arena-storage-pool/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hailstone-sequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/knuth-shuffle/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/range-expansion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/md5/implementation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/remove-duplicate-elements/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/_24-game/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/singly-linked-list/element-insertion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/floyd-warshall-algorithm/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/averages/mean-angle/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/anonymous-recursion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/real-constants-and-functions/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/temperature-conversion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/levenshtein-distance/alignment/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/modular-inverse/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/middle-three-digits/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/environment-variables/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/set/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/execute-brainfuck/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/empty-directory/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hello-world/text/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/constrained-random-points-on-a-circle/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/langtons-ant/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sort-an-integer-array/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/taxicab-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/abstract-type/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/amicable-pairs/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/infinity/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/count-in-octal/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/population-count/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/create-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/file-input-output/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sha-1/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/null-object/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/map-range/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/http/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/assertions/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/keyboard-input/obtain-a-y-or-n-response/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sequence-of-non-squares/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/price-fraction/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/arbitrary-precision-integers-included/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/bitcoin/address-validation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/standard-deviation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/include-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/leap-year/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/while/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/write-entire-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/thieles-interpolation-formula/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/string-length/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/averages/simple-moving-average/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/fibonacci-sequence/fib_seq-iter_successors/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/determine-if-only-one-instance-is-running/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/truncate-a-file/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/maximum-triangle-path-sum/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/use-another-language-to-call-a-function/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/parallel-calculations/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/statistics/basic/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/pick-random-element/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/string-interpolation-included/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/address-of-a-variable/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/rosetta-code/fix-code-tags/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/here-document/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/fast-fourier-transform/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/averages/root-mean-square/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/determine-if-a-string-is-numeric/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/discordian-date/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/substring/top-and-tail/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/bubble-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/jortsort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/best-shuffle/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/comments/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/crc-32/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/csv-data-manipulation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/ludic-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/doubly-linked-list/element-insertion/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/fibonacci-word/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/knapsack-problem/_0-1/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/average-loop-length/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/stooge-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/circles-of-given-radius-through-two-points/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/fibonacci-n-step-number-sequences/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/md4/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/jaro-distance/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/associative-array/creation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/permutations-with-repetitions/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/https/authenticated/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/range-extraction/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/generate-chess960-starting-position/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sort-disjoint-sublist/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/towers-of-hanoi/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/reverse-a-string/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/return-multiple-values/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/comma-quibbling/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/forest-fire/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/stack/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/infinite/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/foreach/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/abundant-deficient-and-perfect-number-classifications/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/string-matching/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/averages/mode/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/fibonacci-sequence/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/_24-game/solve/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/arithmetic/rational/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/break/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/currying/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/insertion-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/boolean-values/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/ethiopian-multiplication/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/count-occurrences-of-a-substring/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/repeat/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/hello-world/web-server/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/selection-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/guess-the-number/with-feedback/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/n-plus-one-half/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/nth-root/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/user-input/text/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/lzw-compression/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/zero-to-the-zero-power/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/pernicious-numbers/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/y-combinator/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sudoku/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/roman-numerals/decode/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/json/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/loops/continue/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/balanced-brackets/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sum-and-product-of-an-array/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/five-weekends/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/bulls-and-cows/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/apply-a-callback-to-an-array/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/continued-fraction/arithmetic/construct-from-rational-number/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/guess-the-number/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/string-case/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/averages/mean-time-of-day/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/accumulator-factory/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/cocktail-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/sorting-algorithms/comb-sort/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/tasks/dijkstras-algorithm/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling libm v0.2.1 [INFO] [stderr] Compiling proc-macro2 v1.0.54 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Compiling quote v1.0.26 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling cc v1.0.79 [INFO] [stderr] Compiling pkg-config v0.3.26 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking once_cell v1.17.1 [INFO] [stderr] Compiling serde_derive v1.0.152 [INFO] [stderr] Compiling serde v1.0.152 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking pin-project-lite v0.2.5 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking bytes v1.4.0 [INFO] [stderr] Checking futures-sink v0.3.13 [INFO] [stderr] Checking either v1.8.1 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.54/src/lib.rs:92:30 [INFO] [stdout] | [INFO] [stdout] 92 | feature(proc_macro_span, proc_macro_span_shrink) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking futures-core v0.3.13 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling tokio v1.25.0 [INFO] [stderr] Compiling indexmap v1.9.2 [INFO] [stderr] Checking futures-io v0.3.13 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking percent-encoding v2.2.0 [INFO] [stderr] Checking futures-channel v0.3.13 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking futures-task v0.3.13 [INFO] [stderr] Checking hashbrown v0.12.3 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "d5812b15bbd7c048864ce7b9b0f76bb812ccc4317aac6813e327a2ce43c5e53a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5812b15bbd7c048864ce7b9b0f76bb812ccc4317aac6813e327a2ce43c5e53a", kill_on_drop: false }` [INFO] [stdout] d5812b15bbd7c048864ce7b9b0f76bb812ccc4317aac6813e327a2ce43c5e53a