[INFO] fetching crate iterware 0.1.0...
[INFO] testing iterware-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate iterware 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate iterware 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iterware 0.1.0
[INFO] finished tweaking crates.io crate iterware 0.1.0
[INFO] tweaked toml for crates.io crate iterware 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 321d9b522f3bc250c80fa3b3fa81765456df080b6bd831ef2845886b0868c0ff
[INFO] running `Command { std: "docker" "start" "-a" "321d9b522f3bc250c80fa3b3fa81765456df080b6bd831ef2845886b0868c0ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "321d9b522f3bc250c80fa3b3fa81765456df080b6bd831ef2845886b0868c0ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "321d9b522f3bc250c80fa3b3fa81765456df080b6bd831ef2845886b0868c0ff", kill_on_drop: false }`
[INFO] [stdout] 321d9b522f3bc250c80fa3b3fa81765456df080b6bd831ef2845886b0868c0ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff8317eac35a5d2fc04734732fc0fd787dcd4db16628369a20fe0dbede9ce6c3
[INFO] running `Command { std: "docker" "start" "-a" "ff8317eac35a5d2fc04734732fc0fd787dcd4db16628369a20fe0dbede9ce6c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterware v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "ff8317eac35a5d2fc04734732fc0fd787dcd4db16628369a20fe0dbede9ce6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff8317eac35a5d2fc04734732fc0fd787dcd4db16628369a20fe0dbede9ce6c3", kill_on_drop: false }`
[INFO] [stdout] ff8317eac35a5d2fc04734732fc0fd787dcd4db16628369a20fe0dbede9ce6c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5942bbdfab429ac30db9534ad29c23d652b2ce8064a3fe0b5d9c607e18aac485
[INFO] running `Command { std: "docker" "start" "-a" "5942bbdfab429ac30db9534ad29c23d652b2ce8064a3fe0b5d9c607e18aac485", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterware v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "5942bbdfab429ac30db9534ad29c23d652b2ce8064a3fe0b5d9c607e18aac485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5942bbdfab429ac30db9534ad29c23d652b2ce8064a3fe0b5d9c607e18aac485", kill_on_drop: false }`
[INFO] [stdout] 5942bbdfab429ac30db9534ad29c23d652b2ce8064a3fe0b5d9c607e18aac485
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8ea6b64401cce5b8693e6d683cdf048b5c7a127735f6a081242b962ba98e6733
[INFO] running `Command { std: "docker" "start" "-a" "8ea6b64401cce5b8693e6d683cdf048b5c7a127735f6a081242b962ba98e6733", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iterware-95de82d87b1dfc8c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_borrow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iterware
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - IteratorMiddleware::middleware (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8ea6b64401cce5b8693e6d683cdf048b5c7a127735f6a081242b962ba98e6733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ea6b64401cce5b8693e6d683cdf048b5c7a127735f6a081242b962ba98e6733", kill_on_drop: false }`
[INFO] [stdout] 8ea6b64401cce5b8693e6d683cdf048b5c7a127735f6a081242b962ba98e6733