[INFO] fetching crate lehmer 3.0.0...
[INFO] testing lehmer-3.0.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate lehmer 3.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate lehmer 3.0.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lehmer 3.0.0
[INFO] finished tweaking crates.io crate lehmer 3.0.0
[INFO] tweaked toml for crates.io crate lehmer 3.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bencher v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 521ae4e4efe9cf32c45cf96cdb3fe98ff9129c199fc5a9a5c630259eb00bf65d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "521ae4e4efe9cf32c45cf96cdb3fe98ff9129c199fc5a9a5c630259eb00bf65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "521ae4e4efe9cf32c45cf96cdb3fe98ff9129c199fc5a9a5c630259eb00bf65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "521ae4e4efe9cf32c45cf96cdb3fe98ff9129c199fc5a9a5c630259eb00bf65d", kill_on_drop: false }`
[INFO] [stdout] 521ae4e4efe9cf32c45cf96cdb3fe98ff9129c199fc5a9a5c630259eb00bf65d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 77011eb90e03b5b9f8ffbf8977286d205129fe0baedd04cf0b304e42bc7c42a0
[INFO] running `Command { std: "docker" "start" "-a" "77011eb90e03b5b9f8ffbf8977286d205129fe0baedd04cf0b304e42bc7c42a0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lehmer v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "77011eb90e03b5b9f8ffbf8977286d205129fe0baedd04cf0b304e42bc7c42a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77011eb90e03b5b9f8ffbf8977286d205129fe0baedd04cf0b304e42bc7c42a0", kill_on_drop: false }`
[INFO] [stdout] 77011eb90e03b5b9f8ffbf8977286d205129fe0baedd04cf0b304e42bc7c42a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a94f2f900c2859a4846c2704674e7399eea564e07c0e4e60a9cb42f0cedc0341
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a94f2f900c2859a4846c2704674e7399eea564e07c0e4e60a9cb42f0cedc0341", kill_on_drop: false }`
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling lehmer v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "a94f2f900c2859a4846c2704674e7399eea564e07c0e4e60a9cb42f0cedc0341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a94f2f900c2859a4846c2704674e7399eea564e07c0e4e60a9cb42f0cedc0341", kill_on_drop: false }`
[INFO] [stdout] a94f2f900c2859a4846c2704674e7399eea564e07c0e4e60a9cb42f0cedc0341
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9ec86983efdb9488942bc6b4dd1f77a2d8d0a4acbd3c769ee6c0799e85c4e1e7
[INFO] running `Command { std: "docker" "start" "-a" "9ec86983efdb9488942bc6b4dd1f77a2d8d0a4acbd3c769ee6c0799e85c4e1e7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lehmer-30911cab8f526990
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test bit_string::test::set::it_sets_the_nth_bit ... ok
[INFO] [stdout] test test::from_permutation::it_works_for_the_trivial_case ... ok
[INFO] [stdout] test test::to_decimal::it_maps_a_lehmer_code_to_its_decimal_number ... ok
[INFO] [stdout] test test::to_decimal::it_works_for_the_trivial_case ... ok
[INFO] [stdout] test test::to_decimal::it_works_for_a_complicated_case ... ok
[INFO] [stdout] test test::to_permutation::it_works_for_trivial_cases ... ok
[INFO] [stdout] test test::to_permutation::it_maps_a_lehmer_code_to_its_permutation ... ok
[INFO] [stdout] test test::from_decimal::it_maps_a_decimal_number_to_its_lehmer_code ... ok
[INFO] [stdout] test bit_string::test::new::it_is_initialized_to_zero ... ok
[INFO] [stdout] test bit_string::test::count_until::it_counts_the_number_of_set_bits_until_the_nth_bit ... ok
[INFO] [stdout] test test::from_permutation::it_maps_a_permutation_to_its_lehmer_code ... ok
[INFO] [stdout] test test::from_decimal::it_works_for_a_complicated_case ... ok
[INFO] [stdout] test test::from_decimal::it_works_for_trivial_cases ... ok
[INFO] [stdout] test test::from_permutation::it_works_for_a_complicated_case ... ok
[INFO] [stdout] test test::max_value::it_returns_the_maximum_decimal_for_a_permutation_of_n_items ... ok
[INFO] [stdout] test test::to_permutation::it_works_for_a_complicated_case ... ok
[INFO] [stdout] test bit_string::test::count_until::it_panics_if_n_is_out_of_bounds ... ok
[INFO] [stdout] test bit_string::test::set::it_panics_if_n_is_out_of_bounds ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lehmer_test-9d06ff25b84942d6
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests lehmer
[INFO] [stdout] test it_can_convert_between_permutations_lehmer_codes_and_decimals ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "9ec86983efdb9488942bc6b4dd1f77a2d8d0a4acbd3c769ee6c0799e85c4e1e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ec86983efdb9488942bc6b4dd1f77a2d8d0a4acbd3c769ee6c0799e85c4e1e7", kill_on_drop: false }`
[INFO] [stdout] 9ec86983efdb9488942bc6b4dd1f77a2d8d0a4acbd3c769ee6c0799e85c4e1e7