[INFO] fetching crate klibs 0.0.0...
[INFO] testing klibs-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate klibs 0.0.0 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate klibs 0.0.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate klibs 0.0.0
[INFO] finished tweaking crates.io crate klibs 0.0.0
[INFO] tweaked toml for crates.io crate klibs 0.0.0 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-2021-09-08" "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-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7e840ed0bc67e311064c72dd341d885477746dd64afbd172f37795dfd81b1b8
[INFO] running `Command { std: "docker" "start" "-a" "b7e840ed0bc67e311064c72dd341d885477746dd64afbd172f37795dfd81b1b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7e840ed0bc67e311064c72dd341d885477746dd64afbd172f37795dfd81b1b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7e840ed0bc67e311064c72dd341d885477746dd64afbd172f37795dfd81b1b8", kill_on_drop: false }`
[INFO] [stdout] b7e840ed0bc67e311064c72dd341d885477746dd64afbd172f37795dfd81b1b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1afd22bc47f4319b49bab000349030b4c822ce6713b6abc03c991c8a02ef0fcf
[INFO] running `Command { std: "docker" "start" "-a" "1afd22bc47f4319b49bab000349030b4c822ce6713b6abc03c991c8a02ef0fcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling klibs v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "1afd22bc47f4319b49bab000349030b4c822ce6713b6abc03c991c8a02ef0fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1afd22bc47f4319b49bab000349030b4c822ce6713b6abc03c991c8a02ef0fcf", kill_on_drop: false }`
[INFO] [stdout] 1afd22bc47f4319b49bab000349030b4c822ce6713b6abc03c991c8a02ef0fcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c75faed3d618067bf32e94d11625adb97a9ff5e43e56a2f0a9b6cbf914f7b6c1
[INFO] running `Command { std: "docker" "start" "-a" "c75faed3d618067bf32e94d11625adb97a9ff5e43e56a2f0a9b6cbf914f7b6c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling klibs v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "c75faed3d618067bf32e94d11625adb97a9ff5e43e56a2f0a9b6cbf914f7b6c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c75faed3d618067bf32e94d11625adb97a9ff5e43e56a2f0a9b6cbf914f7b6c1", kill_on_drop: false }`
[INFO] [stdout] c75faed3d618067bf32e94d11625adb97a9ff5e43e56a2f0a9b6cbf914f7b6c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 84d8c7bacaead8d1fe3ba90ad68b33fee192e9593108a6e4c7c59eda8f3063a5
[INFO] running `Command { std: "docker" "start" "-a" "84d8c7bacaead8d1fe3ba90ad68b33fee192e9593108a6e4c7c59eda8f3063a5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/klibs-196f31acf1745d40)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests klibs
[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 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" "84d8c7bacaead8d1fe3ba90ad68b33fee192e9593108a6e4c7c59eda8f3063a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84d8c7bacaead8d1fe3ba90ad68b33fee192e9593108a6e4c7c59eda8f3063a5", kill_on_drop: false }`
[INFO] [stdout] 84d8c7bacaead8d1fe3ba90ad68b33fee192e9593108a6e4c7c59eda8f3063a5