[INFO] fetching crate vivian-essentials 0.1.0...
[INFO] testing vivian-essentials-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate vivian-essentials 0.1.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate vivian-essentials 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 vivian-essentials 0.1.0
[INFO] finished tweaking crates.io crate vivian-essentials 0.1.0
[INFO] tweaked toml for crates.io crate vivian-essentials 0.1.0 written to /workspace/builds/worker-49/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 332103d944b66a2f6cbb015ff41c84a7199adcf8c6e48d6aaa60a0fac3232a49
[INFO] running `Command { std: "docker" "start" "-a" "332103d944b66a2f6cbb015ff41c84a7199adcf8c6e48d6aaa60a0fac3232a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "332103d944b66a2f6cbb015ff41c84a7199adcf8c6e48d6aaa60a0fac3232a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "332103d944b66a2f6cbb015ff41c84a7199adcf8c6e48d6aaa60a0fac3232a49", kill_on_drop: false }`
[INFO] [stdout] 332103d944b66a2f6cbb015ff41c84a7199adcf8c6e48d6aaa60a0fac3232a49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] b53cd0a8aec9c42af7b75d5f57a59063e646decb473a3bbc78dffb961190a544
[INFO] running `Command { std: "docker" "start" "-a" "b53cd0a8aec9c42af7b75d5f57a59063e646decb473a3bbc78dffb961190a544", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling vivian-essentials v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "b53cd0a8aec9c42af7b75d5f57a59063e646decb473a3bbc78dffb961190a544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b53cd0a8aec9c42af7b75d5f57a59063e646decb473a3bbc78dffb961190a544", kill_on_drop: false }`
[INFO] [stdout] b53cd0a8aec9c42af7b75d5f57a59063e646decb473a3bbc78dffb961190a544
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 5b844cd593f5aedc609a29fa318c629dd8edcc7f3169211cec1b2f6c4e6bdc43
[INFO] running `Command { std: "docker" "start" "-a" "5b844cd593f5aedc609a29fa318c629dd8edcc7f3169211cec1b2f6c4e6bdc43", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling vivian-essentials v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "5b844cd593f5aedc609a29fa318c629dd8edcc7f3169211cec1b2f6c4e6bdc43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b844cd593f5aedc609a29fa318c629dd8edcc7f3169211cec1b2f6c4e6bdc43", kill_on_drop: false }`
[INFO] [stdout] 5b844cd593f5aedc609a29fa318c629dd8edcc7f3169211cec1b2f6c4e6bdc43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 70e004079b064d46aa6ba4216818db90d7736f245c4b1e017d6d14b852eae344
[INFO] running `Command { std: "docker" "start" "-a" "70e004079b064d46aa6ba4216818db90d7736f245c4b1e017d6d14b852eae344", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/essentials-0dec409e8d401c10)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test guard::tests::failure ... ok
[INFO] [stdout] test sugar::tests::test_tern ... ok
[INFO] [stdout] test guard::tests::success ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests essentials
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 32) ... ignored
[INFO] [stdout] test src/lib.rs - (line 43) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] test src/lib.rs - (line 54) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "70e004079b064d46aa6ba4216818db90d7736f245c4b1e017d6d14b852eae344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70e004079b064d46aa6ba4216818db90d7736f245c4b1e017d6d14b852eae344", kill_on_drop: false }`
[INFO] [stdout] 70e004079b064d46aa6ba4216818db90d7736f245c4b1e017d6d14b852eae344