[INFO] fetching crate fluo-channel 0.0.0...
[INFO] testing fluo-channel-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate fluo-channel 0.0.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate fluo-channel 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 fluo-channel 0.0.0
[INFO] finished tweaking crates.io crate fluo-channel 0.0.0
[INFO] tweaked toml for crates.io crate fluo-channel 0.0.0 written to /workspace/builds/worker-19/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] bd7c22c7873adcca5c1a2c85b0f0cbbd825525b3a5f3c6e5cfaa84725360ea3c
[INFO] running `Command { std: "docker" "start" "-a" "bd7c22c7873adcca5c1a2c85b0f0cbbd825525b3a5f3c6e5cfaa84725360ea3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd7c22c7873adcca5c1a2c85b0f0cbbd825525b3a5f3c6e5cfaa84725360ea3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd7c22c7873adcca5c1a2c85b0f0cbbd825525b3a5f3c6e5cfaa84725360ea3c", kill_on_drop: false }`
[INFO] [stdout] bd7c22c7873adcca5c1a2c85b0f0cbbd825525b3a5f3c6e5cfaa84725360ea3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 310b847f4586b4b348524a8857d1cd03cd83848fc9723bc3f2e9722e103b1eb8
[INFO] running `Command { std: "docker" "start" "-a" "310b847f4586b4b348524a8857d1cd03cd83848fc9723bc3f2e9722e103b1eb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling fluo-channel v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "310b847f4586b4b348524a8857d1cd03cd83848fc9723bc3f2e9722e103b1eb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "310b847f4586b4b348524a8857d1cd03cd83848fc9723bc3f2e9722e103b1eb8", kill_on_drop: false }`
[INFO] [stdout] 310b847f4586b4b348524a8857d1cd03cd83848fc9723bc3f2e9722e103b1eb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 8d1acbaa608ff47aae35550ec0ddf31d092d0a2c0ca08c1955f54b9ac5a09c4e
[INFO] running `Command { std: "docker" "start" "-a" "8d1acbaa608ff47aae35550ec0ddf31d092d0a2c0ca08c1955f54b9ac5a09c4e", 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] [stderr]    Compiling fluo-channel v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "8d1acbaa608ff47aae35550ec0ddf31d092d0a2c0ca08c1955f54b9ac5a09c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d1acbaa608ff47aae35550ec0ddf31d092d0a2c0ca08c1955f54b9ac5a09c4e", kill_on_drop: false }`
[INFO] [stdout] 8d1acbaa608ff47aae35550ec0ddf31d092d0a2c0ca08c1955f54b9ac5a09c4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 529c39fe54037c97d130337bd61899f2bcd7adaf7eb06f79bcc4cba78e19f188
[INFO] running `Command { std: "docker" "start" "-a" "529c39fe54037c97d130337bd61899f2bcd7adaf7eb06f79bcc4cba78e19f188", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fluo_channel-799fe4567477a2a6)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fluo-channel
[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] [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" "529c39fe54037c97d130337bd61899f2bcd7adaf7eb06f79bcc4cba78e19f188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "529c39fe54037c97d130337bd61899f2bcd7adaf7eb06f79bcc4cba78e19f188", kill_on_drop: false }`
[INFO] [stdout] 529c39fe54037c97d130337bd61899f2bcd7adaf7eb06f79bcc4cba78e19f188