[INFO] fetching crate swift-std 0.0.0...
[INFO] testing swift-std-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate swift-std 0.0.0 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate swift-std 0.0.0 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 swift-std 0.0.0
[INFO] finished tweaking crates.io crate swift-std 0.0.0
[INFO] tweaked toml for crates.io crate swift-std 0.0.0 written to /workspace/builds/worker-101/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] [stderr]     Blocking waiting for file lock on package cache
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded swift-sys v0.0.0
[INFO] [stderr]   Downloaded swift-rt v0.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] d3e637e271c718f6ead558c9bf197223bd0c2b6c644ece0d0913bcde0c43cac3
[INFO] running `Command { std: "docker" "start" "-a" "d3e637e271c718f6ead558c9bf197223bd0c2b6c644ece0d0913bcde0c43cac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3e637e271c718f6ead558c9bf197223bd0c2b6c644ece0d0913bcde0c43cac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e637e271c718f6ead558c9bf197223bd0c2b6c644ece0d0913bcde0c43cac3", kill_on_drop: false }`
[INFO] [stdout] d3e637e271c718f6ead558c9bf197223bd0c2b6c644ece0d0913bcde0c43cac3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] e96764ea7bc948dea79f339b262759808af0ec23a7def08a66f8855166229279
[INFO] running `Command { std: "docker" "start" "-a" "e96764ea7bc948dea79f339b262759808af0ec23a7def08a66f8855166229279", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling swift-bindgen v0.0.0
[INFO] [stderr]    Compiling swift-rt v0.0.0
[INFO] [stderr]    Compiling swift-sys v0.0.0
[INFO] [stderr]    Compiling swift-std v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "e96764ea7bc948dea79f339b262759808af0ec23a7def08a66f8855166229279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e96764ea7bc948dea79f339b262759808af0ec23a7def08a66f8855166229279", kill_on_drop: false }`
[INFO] [stdout] e96764ea7bc948dea79f339b262759808af0ec23a7def08a66f8855166229279
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] 4402b7ceeaebc6ad503bf9971efaeab89215cd3189dfea808c49ae9067f9d592
[INFO] running `Command { std: "docker" "start" "-a" "4402b7ceeaebc6ad503bf9971efaeab89215cd3189dfea808c49ae9067f9d592", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling swift-std v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "4402b7ceeaebc6ad503bf9971efaeab89215cd3189dfea808c49ae9067f9d592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4402b7ceeaebc6ad503bf9971efaeab89215cd3189dfea808c49ae9067f9d592", kill_on_drop: false }`
[INFO] [stdout] 4402b7ceeaebc6ad503bf9971efaeab89215cd3189dfea808c49ae9067f9d592
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] 21a562877946e64c0048a2d935240e1a2f31780267318ef0a7346b1baa92295e
[INFO] running `Command { std: "docker" "start" "-a" "21a562877946e64c0048a2d935240e1a2f31780267318ef0a7346b1baa92295e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/swift_std-92180020190d139c)
[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] [stderr]    Doc-tests swift-std
[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" "21a562877946e64c0048a2d935240e1a2f31780267318ef0a7346b1baa92295e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21a562877946e64c0048a2d935240e1a2f31780267318ef0a7346b1baa92295e", kill_on_drop: false }`
[INFO] [stdout] 21a562877946e64c0048a2d935240e1a2f31780267318ef0a7346b1baa92295e