[INFO] updating cached repository https://github.com/jakubtuchol/rust_sorting_experiments
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7404b8a99bf6de1cc8d7bd4d4afacfcc3eeeb418
[INFO] testing jakubtuchol/rust_sorting_experiments against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubtuchol%2Frust_sorting_experiments" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakubtuchol/rust_sorting_experiments on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jakubtuchol/rust_sorting_experiments
[INFO] finished tweaking git repo https://github.com/jakubtuchol/rust_sorting_experiments
[INFO] tweaked toml for git repo https://github.com/jakubtuchol/rust_sorting_experiments written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jakubtuchol/rust_sorting_experiments already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 01d5bff0e25555171df5378aa6827c78ef42fb1c80b2f00c95cd48d544eb7405
[INFO] running `"docker" "start" "-a" "01d5bff0e25555171df5378aa6827c78ef42fb1c80b2f00c95cd48d544eb7405"`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling sorting v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `"docker" "inspect" "01d5bff0e25555171df5378aa6827c78ef42fb1c80b2f00c95cd48d544eb7405"`
[INFO] running `"docker" "rm" "-f" "01d5bff0e25555171df5378aa6827c78ef42fb1c80b2f00c95cd48d544eb7405"`
[INFO] [stdout] 01d5bff0e25555171df5378aa6827c78ef42fb1c80b2f00c95cd48d544eb7405
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 11549d7c2c735ebd3a7b84dc62130944651f310d487227960150d7fa7273664a
[INFO] running `"docker" "start" "-a" "11549d7c2c735ebd3a7b84dc62130944651f310d487227960150d7fa7273664a"`
[INFO] [stderr]    Compiling sorting v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `"docker" "inspect" "11549d7c2c735ebd3a7b84dc62130944651f310d487227960150d7fa7273664a"`
[INFO] running `"docker" "rm" "-f" "11549d7c2c735ebd3a7b84dc62130944651f310d487227960150d7fa7273664a"`
[INFO] [stdout] 11549d7c2c735ebd3a7b84dc62130944651f310d487227960150d7fa7273664a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 15933f874fe857caadbd90f82d2bba3d8d8ee406b13efd4fac3ab163cfa5f0b7
[INFO] running `"docker" "start" "-a" "15933f874fe857caadbd90f82d2bba3d8d8ee406b13efd4fac3ab163cfa5f0b7"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sorting-85692ef2d85598ff
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test bubble::test_sort_small_vector ... ok
[INFO] [stdout] test heap::test_sort_small_vector ... ok
[INFO] [stdout] test heap::test_random_nonuniform_vector ... ok
[INFO] [stdout] test quick::test_sort_small_vector ... ok
[INFO] [stdout] test rand_range::test_ensure_nonuniform_range_not_equal ... ok
[INFO] [stdout] test insertion::test_sort_small_vector ... ok
[INFO] [stdout] test merge::test_sort_small_vector ... ok
[INFO] [stdout] test quick::test_random_nonuniform_vector ... ok
[INFO] [stdout] test merge::test_random_nonuniform_vector ... ok
[INFO] [stdout] test merge::test_randomly_generated_vector ... ok
[INFO] [stdout] test heap::test_randomly_generated_vector ... ok
[INFO] [stdout] test quick::test_randomly_generated_vector ... ok
[INFO] [stdout] test insertion::test_random_nonuniform_vector ... ok
[INFO] [stdout] test insertion::test_randomly_generated_vector ... ok
[INFO] [stdout] test bubble::test_random_nonuniform_vector ... ok
[INFO] [stdout] test bubble::test_randomly_generated_vector ... ok
[INFO] [stdout] test rand_range::test_check_vector_sizes ... ok
[INFO] [stdout] test rand_range::test_ensure_not_equal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sorting
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "15933f874fe857caadbd90f82d2bba3d8d8ee406b13efd4fac3ab163cfa5f0b7"`
[INFO] running `"docker" "rm" "-f" "15933f874fe857caadbd90f82d2bba3d8d8ee406b13efd4fac3ab163cfa5f0b7"`
[INFO] [stdout] 15933f874fe857caadbd90f82d2bba3d8d8ee406b13efd4fac3ab163cfa5f0b7