[INFO] fetching crate bchannel 0.0.10...
[INFO] testing bchannel-0.0.10 against 1.55.0 for beta-1.56-1
[INFO] extracting crate bchannel 0.0.10 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate bchannel 0.0.10 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 bchannel 0.0.10
[INFO] finished tweaking crates.io crate bchannel 0.0.10
[INFO] tweaked toml for crates.io crate bchannel 0.0.10 written to /workspace/builds/worker-36/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] 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] daadb5c1a54c1893a502e889ce35ba65c886ada1e1c53432c50428f3e9667102
[INFO] running `Command { std: "docker" "start" "-a" "daadb5c1a54c1893a502e889ce35ba65c886ada1e1c53432c50428f3e9667102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daadb5c1a54c1893a502e889ce35ba65c886ada1e1c53432c50428f3e9667102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daadb5c1a54c1893a502e889ce35ba65c886ada1e1c53432c50428f3e9667102", kill_on_drop: false }`
[INFO] [stdout] daadb5c1a54c1893a502e889ce35ba65c886ada1e1c53432c50428f3e9667102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] d0ea5b215641d2732a289bb39bc2ea19da5a1a454b21701dde52870ee40443e0
[INFO] running `Command { std: "docker" "start" "-a" "d0ea5b215641d2732a289bb39bc2ea19da5a1a454b21701dde52870ee40443e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling bchannel v0.0.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "d0ea5b215641d2732a289bb39bc2ea19da5a1a454b21701dde52870ee40443e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0ea5b215641d2732a289bb39bc2ea19da5a1a454b21701dde52870ee40443e0", kill_on_drop: false }`
[INFO] [stdout] d0ea5b215641d2732a289bb39bc2ea19da5a1a454b21701dde52870ee40443e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] a3ce22c4d011420fe01388b773a85e523eb0f586187ff3bdec2dab7927609e4e
[INFO] running `Command { std: "docker" "start" "-a" "a3ce22c4d011420fe01388b773a85e523eb0f586187ff3bdec2dab7927609e4e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bchannel v0.0.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `Command { std: "docker" "inspect" "a3ce22c4d011420fe01388b773a85e523eb0f586187ff3bdec2dab7927609e4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3ce22c4d011420fe01388b773a85e523eb0f586187ff3bdec2dab7927609e4e", kill_on_drop: false }`
[INFO] [stdout] a3ce22c4d011420fe01388b773a85e523eb0f586187ff3bdec2dab7927609e4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] 3a1710bf6ed34e3e7f724b86fafbfacd81fb1740460e1935995a021cc022ad2b
[INFO] running `Command { std: "docker" "start" "-a" "3a1710bf6ed34e3e7f724b86fafbfacd81fb1740460e1935995a021cc022ad2b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.61s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bchannel-0482031a11f2982c)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::into_iter ... ok
[INFO] [stdout] test test::error ... ok
[INFO] [stdout] test test::iter ... ok
[INFO] [stdout] test test::basic ... ok
[INFO] [stdout] test test::iter_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bchannel
[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" "3a1710bf6ed34e3e7f724b86fafbfacd81fb1740460e1935995a021cc022ad2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1710bf6ed34e3e7f724b86fafbfacd81fb1740460e1935995a021cc022ad2b", kill_on_drop: false }`
[INFO] [stdout] 3a1710bf6ed34e3e7f724b86fafbfacd81fb1740460e1935995a021cc022ad2b