[INFO] cloning repository https://github.com/goyox86/linked_list.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/goyox86/linked_list.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoyox86%2Flinked_list.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoyox86%2Flinked_list.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 341490baa2fadbe7a665e32e168521c52c4ee1ac
[INFO] testing goyox86/linked_list.rs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoyox86%2Flinked_list.rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/goyox86/linked_list.rs 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/goyox86/linked_list.rs
[INFO] finished tweaking git repo https://github.com/goyox86/linked_list.rs
[INFO] tweaked toml for git repo https://github.com/goyox86/linked_list.rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/goyox86/linked_list.rs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e1cb200cf34932aead75a098a8f51a8aea9a3fe4276ff3b4f77fd3d2928a9505
[INFO] running `Command { std: "docker" "start" "-a" "e1cb200cf34932aead75a098a8f51a8aea9a3fe4276ff3b4f77fd3d2928a9505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1cb200cf34932aead75a098a8f51a8aea9a3fe4276ff3b4f77fd3d2928a9505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1cb200cf34932aead75a098a8f51a8aea9a3fe4276ff3b4f77fd3d2928a9505", kill_on_drop: false }`
[INFO] [stdout] e1cb200cf34932aead75a098a8f51a8aea9a3fe4276ff3b4f77fd3d2928a9505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 61ebe8b77b26dad1329b9ac7ba618fce38810b2124ef49304302bd8a9b47de56
[INFO] running `Command { std: "docker" "start" "-a" "61ebe8b77b26dad1329b9ac7ba618fce38810b2124ef49304302bd8a9b47de56", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.04s
[INFO] running `Command { std: "docker" "inspect" "61ebe8b77b26dad1329b9ac7ba618fce38810b2124ef49304302bd8a9b47de56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61ebe8b77b26dad1329b9ac7ba618fce38810b2124ef49304302bd8a9b47de56", kill_on_drop: false }`
[INFO] [stdout] 61ebe8b77b26dad1329b9ac7ba618fce38810b2124ef49304302bd8a9b47de56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 4194416481f127f2d1d7837f0106482bce5792204dd91b030e4be151e2233416
[INFO] running `Command { std: "docker" "start" "-a" "4194416481f127f2d1d7837f0106482bce5792204dd91b030e4be151e2233416", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "4194416481f127f2d1d7837f0106482bce5792204dd91b030e4be151e2233416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4194416481f127f2d1d7837f0106482bce5792204dd91b030e4be151e2233416", kill_on_drop: false }`
[INFO] [stdout] 4194416481f127f2d1d7837f0106482bce5792204dd91b030e4be151e2233416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 556f9a312ce33cb638d57209c88b733affd49e58c07d2b9806d95053860aca1a
[INFO] running `Command { std: "docker" "start" "-a" "556f9a312ce33cb638d57209c88b733affd49e58c07d2b9806d95053860aca1a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.36s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linked_list-2b3acad3a597758f)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_pop_front_empty_list ... ok
[INFO] [stdout] test tests::test_push_pop_front ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "556f9a312ce33cb638d57209c88b733affd49e58c07d2b9806d95053860aca1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "556f9a312ce33cb638d57209c88b733affd49e58c07d2b9806d95053860aca1a", kill_on_drop: false }`
[INFO] [stdout] 556f9a312ce33cb638d57209c88b733affd49e58c07d2b9806d95053860aca1a