[INFO] fetching crate swan 0.0.0...
[INFO] testing swan-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate swan 0.0.0 into /workspace/builds/worker-95/source
[INFO] validating manifest of crates.io crate swan 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 swan 0.0.0
[INFO] finished tweaking crates.io crate swan 0.0.0
[INFO] tweaked toml for crates.io crate swan 0.0.0 written to /workspace/builds/worker-95/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-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] e4d8d9a144b76e8c705ad0539303734f87263e0a431e5558dcc2d5df1c662ca9
[INFO] running `Command { std: "docker" "start" "-a" "e4d8d9a144b76e8c705ad0539303734f87263e0a431e5558dcc2d5df1c662ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4d8d9a144b76e8c705ad0539303734f87263e0a431e5558dcc2d5df1c662ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d8d9a144b76e8c705ad0539303734f87263e0a431e5558dcc2d5df1c662ca9", kill_on_drop: false }`
[INFO] [stdout] e4d8d9a144b76e8c705ad0539303734f87263e0a431e5558dcc2d5df1c662ca9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] 5cf6cb15fb0399e6da606f226250e0b1302ef2ba7fca30d479648dbc95388fc9
[INFO] running `Command { std: "docker" "start" "-a" "5cf6cb15fb0399e6da606f226250e0b1302ef2ba7fca30d479648dbc95388fc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling swan v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "5cf6cb15fb0399e6da606f226250e0b1302ef2ba7fca30d479648dbc95388fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cf6cb15fb0399e6da606f226250e0b1302ef2ba7fca30d479648dbc95388fc9", kill_on_drop: false }`
[INFO] [stdout] 5cf6cb15fb0399e6da606f226250e0b1302ef2ba7fca30d479648dbc95388fc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] 524dee72f73b8e98fe80683119917542b938692ba3775b16c6ddb4f563fb1a00
[INFO] running `Command { std: "docker" "start" "-a" "524dee72f73b8e98fe80683119917542b938692ba3775b16c6ddb4f563fb1a00", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling swan v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "524dee72f73b8e98fe80683119917542b938692ba3775b16c6ddb4f563fb1a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "524dee72f73b8e98fe80683119917542b938692ba3775b16c6ddb4f563fb1a00", kill_on_drop: false }`
[INFO] [stdout] 524dee72f73b8e98fe80683119917542b938692ba3775b16c6ddb4f563fb1a00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] 91825bb043005101aa04b81c92e598b0541bda623f6dd49ea11a2632a0bdc40d
[INFO] running `Command { std: "docker" "start" "-a" "91825bb043005101aa04b81c92e598b0541bda623f6dd49ea11a2632a0bdc40d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/swan-e3ce865624b829ad)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests swan
[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 0.00s
[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" "91825bb043005101aa04b81c92e598b0541bda623f6dd49ea11a2632a0bdc40d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91825bb043005101aa04b81c92e598b0541bda623f6dd49ea11a2632a0bdc40d", kill_on_drop: false }`
[INFO] [stdout] 91825bb043005101aa04b81c92e598b0541bda623f6dd49ea11a2632a0bdc40d