[INFO] fetching crate cargo-post 0.1.6...
[INFO] testing cargo-post-0.1.6 against 1.55.0 for beta-1.56-1
[INFO] extracting crate cargo-post 0.1.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cargo-post 0.1.6 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 cargo-post 0.1.6
[INFO] finished tweaking crates.io crate cargo-post 0.1.6
[INFO] tweaked toml for crates.io crate cargo-post 0.1.6 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate cargo-post 0.1.6 already has a lockfile, it will not be regenerated
[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 cargo_metadata v0.7.4
[INFO] [stderr]   Downloaded syn v1.0.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 5ada9d9b33368bd26529b4eec9cb23a2173ccd3bc939de9dde7f720063cc6b1e
[INFO] running `Command { std: "docker" "start" "-a" "5ada9d9b33368bd26529b4eec9cb23a2173ccd3bc939de9dde7f720063cc6b1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ada9d9b33368bd26529b4eec9cb23a2173ccd3bc939de9dde7f720063cc6b1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ada9d9b33368bd26529b4eec9cb23a2173ccd3bc939de9dde7f720063cc6b1e", kill_on_drop: false }`
[INFO] [stdout] 5ada9d9b33368bd26529b4eec9cb23a2173ccd3bc939de9dde7f720063cc6b1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 848561230c417fbe92f636acb6bb1c63996dcd49234d441900ad00cc152fa5af
[INFO] running `Command { std: "docker" "start" "-a" "848561230c417fbe92f636acb6bb1c63996dcd49234d441900ad00cc152fa5af", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling syn v1.0.25
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling cargo_metadata v0.7.4
[INFO] [stderr]    Compiling cargo-post v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.32s
[INFO] running `Command { std: "docker" "inspect" "848561230c417fbe92f636acb6bb1c63996dcd49234d441900ad00cc152fa5af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "848561230c417fbe92f636acb6bb1c63996dcd49234d441900ad00cc152fa5af", kill_on_drop: false }`
[INFO] [stdout] 848561230c417fbe92f636acb6bb1c63996dcd49234d441900ad00cc152fa5af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 0defec61ae18f6849ed8840a0dfdc40ad667768b10bffb8708c71cf2f8b213b2
[INFO] running `Command { std: "docker" "start" "-a" "0defec61ae18f6849ed8840a0dfdc40ad667768b10bffb8708c71cf2f8b213b2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cargo-post v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.76s
[INFO] running `Command { std: "docker" "inspect" "0defec61ae18f6849ed8840a0dfdc40ad667768b10bffb8708c71cf2f8b213b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0defec61ae18f6849ed8840a0dfdc40ad667768b10bffb8708c71cf2f8b213b2", kill_on_drop: false }`
[INFO] [stdout] 0defec61ae18f6849ed8840a0dfdc40ad667768b10bffb8708c71cf2f8b213b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] c11cc91e5a4c6a957ed0a941f5aa262fad79b8c21678eb1d8198d62ea02af01d
[INFO] running `Command { std: "docker" "start" "-a" "c11cc91e5a4c6a957ed0a941f5aa262fad79b8c21678eb1d8198d62ea02af01d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cargo_post-5a985db0cffd7498)
[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" "c11cc91e5a4c6a957ed0a941f5aa262fad79b8c21678eb1d8198d62ea02af01d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c11cc91e5a4c6a957ed0a941f5aa262fad79b8c21678eb1d8198d62ea02af01d", kill_on_drop: false }`
[INFO] [stdout] c11cc91e5a4c6a957ed0a941f5aa262fad79b8c21678eb1d8198d62ea02af01d