[INFO] fetching crate loser_case 0.2.1...
[INFO] testing loser_case-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate loser_case 0.2.1 into /workspace/builds/worker-38/source
[INFO] validating manifest of crates.io crate loser_case 0.2.1 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 crates.io crate loser_case 0.2.1
[INFO] finished tweaking crates.io crate loser_case 0.2.1
[INFO] tweaked toml for crates.io crate loser_case 0.2.1 written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] fd512cb179c2f76b9a713fdbf97ec36a4014856641c2ea5f839aa478ea8617b4
[INFO] running `Command { std: "docker" "start" "-a" "fd512cb179c2f76b9a713fdbf97ec36a4014856641c2ea5f839aa478ea8617b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd512cb179c2f76b9a713fdbf97ec36a4014856641c2ea5f839aa478ea8617b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd512cb179c2f76b9a713fdbf97ec36a4014856641c2ea5f839aa478ea8617b4", kill_on_drop: false }`
[INFO] [stdout] fd512cb179c2f76b9a713fdbf97ec36a4014856641c2ea5f839aa478ea8617b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] cf427639ac7fdc253daff95468002a5752f23ccdfc58821d006c3f64140b0c24
[INFO] running `Command { std: "docker" "start" "-a" "cf427639ac7fdc253daff95468002a5752f23ccdfc58821d006c3f64140b0c24", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling loser_case v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.80s
[INFO] running `Command { std: "docker" "inspect" "cf427639ac7fdc253daff95468002a5752f23ccdfc58821d006c3f64140b0c24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf427639ac7fdc253daff95468002a5752f23ccdfc58821d006c3f64140b0c24", kill_on_drop: false }`
[INFO] [stdout] cf427639ac7fdc253daff95468002a5752f23ccdfc58821d006c3f64140b0c24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] 8bdfb6d581ac4af055ad0016fa04d2536777a3c1e2253cbdb3367cdb0b5112c6
[INFO] running `Command { std: "docker" "start" "-a" "8bdfb6d581ac4af055ad0016fa04d2536777a3c1e2253cbdb3367cdb0b5112c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling loser_case v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "8bdfb6d581ac4af055ad0016fa04d2536777a3c1e2253cbdb3367cdb0b5112c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bdfb6d581ac4af055ad0016fa04d2536777a3c1e2253cbdb3367cdb0b5112c6", kill_on_drop: false }`
[INFO] [stdout] 8bdfb6d581ac4af055ad0016fa04d2536777a3c1e2253cbdb3367cdb0b5112c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] f56d4f654b6a3297c29012f358987af2400b6709a0792b1c77b3a3c975ae9b18
[INFO] running `Command { std: "docker" "start" "-a" "f56d4f654b6a3297c29012f358987af2400b6709a0792b1c77b3a3c975ae9b18", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/loser_case-0ecee4386409de65)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests loser_case
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - to_loser (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f56d4f654b6a3297c29012f358987af2400b6709a0792b1c77b3a3c975ae9b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f56d4f654b6a3297c29012f358987af2400b6709a0792b1c77b3a3c975ae9b18", kill_on_drop: false }`
[INFO] [stdout] f56d4f654b6a3297c29012f358987af2400b6709a0792b1c77b3a3c975ae9b18