[INFO] cloning repository https://github.com/neurosie/rust-book-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neurosie/rust-book-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneurosie%2Frust-book-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneurosie%2Frust-book-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2beb4cde242af28a5cc99a3a8b264f4b13587cb
[INFO] testing neurosie/rust-book-exercises against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneurosie%2Frust-book-exercises" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/neurosie/rust-book-exercises on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/neurosie/rust-book-exercises
[INFO] finished tweaking git repo https://github.com/neurosie/rust-book-exercises
[INFO] tweaked toml for git repo https://github.com/neurosie/rust-book-exercises written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/neurosie/rust-book-exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3c1b934a885b43186189397c8ff4596f790364d4c65d7194e125dc95c46ded8
[INFO] running `Command { std: "docker" "start" "-a" "a3c1b934a885b43186189397c8ff4596f790364d4c65d7194e125dc95c46ded8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3c1b934a885b43186189397c8ff4596f790364d4c65d7194e125dc95c46ded8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3c1b934a885b43186189397c8ff4596f790364d4c65d7194e125dc95c46ded8", kill_on_drop: false }`
[INFO] [stdout] a3c1b934a885b43186189397c8ff4596f790364d4c65d7194e125dc95c46ded8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82404cf575eb1fb483915d2c88bffaab538364c3b28444d1b04de0a5b8a113cc
[INFO] running `Command { std: "docker" "start" "-a" "82404cf575eb1fb483915d2c88bffaab538364c3b28444d1b04de0a5b8a113cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "82404cf575eb1fb483915d2c88bffaab538364c3b28444d1b04de0a5b8a113cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82404cf575eb1fb483915d2c88bffaab538364c3b28444d1b04de0a5b8a113cc", kill_on_drop: false }`
[INFO] [stdout] 82404cf575eb1fb483915d2c88bffaab538364c3b28444d1b04de0a5b8a113cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a5cd8fa230f30b3fca278c5d23a564373eed37201631b7d6874ab417e792c41
[INFO] running `Command { std: "docker" "start" "-a" "5a5cd8fa230f30b3fca278c5d23a564373eed37201631b7d6874ab417e792c41", kill_on_drop: false }`
[INFO] [stderr]    Compiling exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "5a5cd8fa230f30b3fca278c5d23a564373eed37201631b7d6874ab417e792c41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a5cd8fa230f30b3fca278c5d23a564373eed37201631b7d6874ab417e792c41", kill_on_drop: false }`
[INFO] [stdout] 5a5cd8fa230f30b3fca278c5d23a564373eed37201631b7d6874ab417e792c41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3f4c4ae4830e75fd64395b7d4a474a2abba5d8b66bf8e09b38cd75f9e1423286
[INFO] running `Command { std: "docker" "start" "-a" "3f4c4ae4830e75fd64395b7d4a474a2abba5d8b66bf8e09b38cd75f9e1423286", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/exercises-3d5a8e00bc2c3944)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test cacher::tests::slice_size ... ok
[INFO] [stdout] test cacher::tests::tuple_argument ... ok
[INFO] [stdout] test blog::tests::reject ... ok
[INFO] [stdout] test blog::tests::two_reviews ... ok
[INFO] [stdout] test blog::tests::basic_post ... ok
[INFO] [stderr]    Doc-tests exercises
[INFO] [stdout] test cacher::tests::call_with_different_values ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 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" "3f4c4ae4830e75fd64395b7d4a474a2abba5d8b66bf8e09b38cd75f9e1423286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f4c4ae4830e75fd64395b7d4a474a2abba5d8b66bf8e09b38cd75f9e1423286", kill_on_drop: false }`
[INFO] [stdout] 3f4c4ae4830e75fd64395b7d4a474a2abba5d8b66bf8e09b38cd75f9e1423286