[INFO] fetching crate mrwei 0.1.0...
[INFO] testing mrwei-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mrwei 0.1.0 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate mrwei 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 mrwei 0.1.0
[INFO] finished tweaking crates.io crate mrwei 0.1.0
[INFO] tweaked toml for crates.io crate mrwei 0.1.0 written to /workspace/builds/worker-94/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] dcec24f5551322eb7ae7eb882b430cc7842c2e786066f37c7e34bd9c65050f70
[INFO] running `Command { std: "docker" "start" "-a" "dcec24f5551322eb7ae7eb882b430cc7842c2e786066f37c7e34bd9c65050f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcec24f5551322eb7ae7eb882b430cc7842c2e786066f37c7e34bd9c65050f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcec24f5551322eb7ae7eb882b430cc7842c2e786066f37c7e34bd9c65050f70", kill_on_drop: false }`
[INFO] [stdout] dcec24f5551322eb7ae7eb882b430cc7842c2e786066f37c7e34bd9c65050f70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] e3f900ec581cf0a860a9783cdb231655d3e234794f65bc97af12739e7a72d6b3
[INFO] running `Command { std: "docker" "start" "-a" "e3f900ec581cf0a860a9783cdb231655d3e234794f65bc97af12739e7a72d6b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling mrwei v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "e3f900ec581cf0a860a9783cdb231655d3e234794f65bc97af12739e7a72d6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3f900ec581cf0a860a9783cdb231655d3e234794f65bc97af12739e7a72d6b3", kill_on_drop: false }`
[INFO] [stdout] e3f900ec581cf0a860a9783cdb231655d3e234794f65bc97af12739e7a72d6b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 3183bd4099044d75e9c809411878671a1a3e6e8e91a7f0f5fd42eed584b044f7
[INFO] running `Command { std: "docker" "start" "-a" "3183bd4099044d75e9c809411878671a1a3e6e8e91a7f0f5fd42eed584b044f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling mrwei v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "3183bd4099044d75e9c809411878671a1a3e6e8e91a7f0f5fd42eed584b044f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3183bd4099044d75e9c809411878671a1a3e6e8e91a7f0f5fd42eed584b044f7", kill_on_drop: false }`
[INFO] [stdout] 3183bd4099044d75e9c809411878671a1a3e6e8e91a7f0f5fd42eed584b044f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 8572238fe02f9770e61d4cf23e690478acf85299e6bb83cc60a13067e50b28d6
[INFO] running `Command { std: "docker" "start" "-a" "8572238fe02f9770e61d4cf23e690478acf85299e6bb83cc60a13067e50b28d6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mrwei-8951ad50bd4f8399)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_assume_init ... ok
[INFO] [stdout] test tests::test_block_future ... ok
[INFO] [stdout] test tests::test_drop_future ... ok
[INFO] [stdout] test tests::test_drop_promise ... ok
[INFO] [stdout] test tests::test_wake ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mrwei
[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" "8572238fe02f9770e61d4cf23e690478acf85299e6bb83cc60a13067e50b28d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8572238fe02f9770e61d4cf23e690478acf85299e6bb83cc60a13067e50b28d6", kill_on_drop: false }`
[INFO] [stdout] 8572238fe02f9770e61d4cf23e690478acf85299e6bb83cc60a13067e50b28d6