[INFO] fetching crate sprog 0.1.0...
[INFO] testing sprog-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate sprog 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate sprog 0.1.0 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 sprog 0.1.0
[INFO] finished tweaking crates.io crate sprog 0.1.0
[INFO] tweaked toml for crates.io crate sprog 0.1.0 written to /workspace/builds/worker-13/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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cf23e635f6b8c02cb4b80aad2108a4668d7f4bfb270fce07c8bfc99b6b9c76bc
[INFO] running `Command { std: "docker" "start" "-a" "cf23e635f6b8c02cb4b80aad2108a4668d7f4bfb270fce07c8bfc99b6b9c76bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf23e635f6b8c02cb4b80aad2108a4668d7f4bfb270fce07c8bfc99b6b9c76bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf23e635f6b8c02cb4b80aad2108a4668d7f4bfb270fce07c8bfc99b6b9c76bc", kill_on_drop: false }`
[INFO] [stdout] cf23e635f6b8c02cb4b80aad2108a4668d7f4bfb270fce07c8bfc99b6b9c76bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] f040bce9b5a33e4f86bc4af2d18dcec6e5bd16937bf575bb0923198d83a060d9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f040bce9b5a33e4f86bc4af2d18dcec6e5bd16937bf575bb0923198d83a060d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling sprog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "f040bce9b5a33e4f86bc4af2d18dcec6e5bd16937bf575bb0923198d83a060d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f040bce9b5a33e4f86bc4af2d18dcec6e5bd16937bf575bb0923198d83a060d9", kill_on_drop: false }`
[INFO] [stdout] f040bce9b5a33e4f86bc4af2d18dcec6e5bd16937bf575bb0923198d83a060d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 151e16dc32f76bb699fdd10099b844411d7e0bf96ad6b8bf0ffc963499c80622
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "151e16dc32f76bb699fdd10099b844411d7e0bf96ad6b8bf0ffc963499c80622", kill_on_drop: false }`
[INFO] [stderr]    Compiling sprog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "151e16dc32f76bb699fdd10099b844411d7e0bf96ad6b8bf0ffc963499c80622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "151e16dc32f76bb699fdd10099b844411d7e0bf96ad6b8bf0ffc963499c80622", kill_on_drop: false }`
[INFO] [stdout] 151e16dc32f76bb699fdd10099b844411d7e0bf96ad6b8bf0ffc963499c80622
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] f0df6f039be4cd54d9b4e421f628932eb5fb82c77f2add90764d250976b82e9a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f0df6f039be4cd54d9b4e421f628932eb5fb82c77f2add90764d250976b82e9a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sprog-5ff9f970f494c0de)
[INFO] [stderr]    Doc-tests sprog
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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 0.01s
[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" "f0df6f039be4cd54d9b4e421f628932eb5fb82c77f2add90764d250976b82e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0df6f039be4cd54d9b4e421f628932eb5fb82c77f2add90764d250976b82e9a", kill_on_drop: false }`
[INFO] [stdout] f0df6f039be4cd54d9b4e421f628932eb5fb82c77f2add90764d250976b82e9a