[INFO] cloning repository https://github.com/Rasarex/hangman_hardest_word [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rasarex/hangman_hardest_word" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRasarex%2Fhangman_hardest_word", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRasarex%2Fhangman_hardest_word'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1bf971719b7eb6ef29a781915808e5dbb2f811ce [INFO] testing Rasarex/hangman_hardest_word against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRasarex%2Fhangman_hardest_word" "/workspace/builds/worker-58/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-58/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Rasarex/hangman_hardest_word on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Rasarex/hangman_hardest_word [INFO] finished tweaking git repo https://github.com/Rasarex/hangman_hardest_word [INFO] tweaked toml for git repo https://github.com/Rasarex/hangman_hardest_word written to /workspace/builds/worker-58/source/Cargo.toml [INFO] crate git repo https://github.com/Rasarex/hangman_hardest_word already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cc7ab30527ae7b66a8e4be0811f444d1aec627be93410fee4af468fb6515a71c [INFO] running `Command { std: "docker" "start" "-a" "cc7ab30527ae7b66a8e4be0811f444d1aec627be93410fee4af468fb6515a71c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cc7ab30527ae7b66a8e4be0811f444d1aec627be93410fee4af468fb6515a71c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc7ab30527ae7b66a8e4be0811f444d1aec627be93410fee4af468fb6515a71c", kill_on_drop: false }` [INFO] [stdout] cc7ab30527ae7b66a8e4be0811f444d1aec627be93410fee4af468fb6515a71c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6a49efc2847f7e9863c1a0732708f82d6a11dc85c132ec8917243188694c863c [INFO] running `Command { std: "docker" "start" "-a" "6a49efc2847f7e9863c1a0732708f82d6a11dc85c132ec8917243188694c863c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.74 [INFO] [stderr] Compiling regex-syntax v0.6.18 [INFO] [stderr] Compiling aho-corasick v0.7.13 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling threadpool v1.8.1 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Compiling hardest_word v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:87:17 [INFO] [stdout] | [INFO] [stdout] 87 | let mut sorted = freq.to_sorted_vec(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `to_static_slice` [INFO] [stdout] --> src/main.rs:261:4 [INFO] [stdout] | [INFO] [stdout] 261 | fn to_static_slice(vector : Vec) -> &'static [T]{ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.79s [INFO] running `Command { std: "docker" "inspect" "6a49efc2847f7e9863c1a0732708f82d6a11dc85c132ec8917243188694c863c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a49efc2847f7e9863c1a0732708f82d6a11dc85c132ec8917243188694c863c", kill_on_drop: false }` [INFO] [stdout] 6a49efc2847f7e9863c1a0732708f82d6a11dc85c132ec8917243188694c863c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 16a2c47acf187b7c9d72c58471a7ebb118be40c0824b51f49903892e584cfa72 [INFO] running `Command { std: "docker" "start" "-a" "16a2c47acf187b7c9d72c58471a7ebb118be40c0824b51f49903892e584cfa72", kill_on_drop: false }` [INFO] [stderr] Compiling hardest_word v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:87:17 [INFO] [stdout] | [INFO] [stdout] 87 | let mut sorted = freq.to_sorted_vec(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `to_static_slice` [INFO] [stdout] --> src/main.rs:261:4 [INFO] [stdout] | [INFO] [stdout] 261 | fn to_static_slice(vector : Vec) -> &'static [T]{ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.75s [INFO] running `Command { std: "docker" "inspect" "16a2c47acf187b7c9d72c58471a7ebb118be40c0824b51f49903892e584cfa72", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16a2c47acf187b7c9d72c58471a7ebb118be40c0824b51f49903892e584cfa72", kill_on_drop: false }` [INFO] [stdout] 16a2c47acf187b7c9d72c58471a7ebb118be40c0824b51f49903892e584cfa72 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 436c03d10d6c83177c31b1b7ea3ae72e67ba402912c90619323fd7c4229cee28 [INFO] running `Command { std: "docker" "start" "-a" "436c03d10d6c83177c31b1b7ea3ae72e67ba402912c90619323fd7c4229cee28", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:87:17 [INFO] [stderr] | [INFO] [stderr] 87 | let mut sorted = freq.to_sorted_vec(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `to_static_slice` [INFO] [stderr] --> src/main.rs:261:4 [INFO] [stderr] | [INFO] [stderr] 261 | fn to_static_slice(vector : Vec) -> &'static [T]{ [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `hardest_word` (bin "hardest_word" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.68s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/hardest_word-48d56bd6a526a831) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "436c03d10d6c83177c31b1b7ea3ae72e67ba402912c90619323fd7c4229cee28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "436c03d10d6c83177c31b1b7ea3ae72e67ba402912c90619323fd7c4229cee28", kill_on_drop: false }` [INFO] [stdout] 436c03d10d6c83177c31b1b7ea3ae72e67ba402912c90619323fd7c4229cee28