[INFO] fetching crate iterware 0.1.0...
[INFO] testing iterware-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate iterware 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate iterware 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 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-10/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 9f35395483108d54c0eab4f09f201e94cea69cca84d1930be41b8fddfa226eeb
[INFO] running `Command { std: "docker" "start" "-a" "9f35395483108d54c0eab4f09f201e94cea69cca84d1930be41b8fddfa226eeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f35395483108d54c0eab4f09f201e94cea69cca84d1930be41b8fddfa226eeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f35395483108d54c0eab4f09f201e94cea69cca84d1930be41b8fddfa226eeb", kill_on_drop: false }`
[INFO] [stdout] 9f35395483108d54c0eab4f09f201e94cea69cca84d1930be41b8fddfa226eeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 4f7a9b720960e45b6cb320bec21b043e829f7602da55d40d7eed00f36b845c88
[INFO] running `Command { std: "docker" "start" "-a" "4f7a9b720960e45b6cb320bec21b043e829f7602da55d40d7eed00f36b845c88", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterware v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "4f7a9b720960e45b6cb320bec21b043e829f7602da55d40d7eed00f36b845c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f7a9b720960e45b6cb320bec21b043e829f7602da55d40d7eed00f36b845c88", kill_on_drop: false }`
[INFO] [stdout] 4f7a9b720960e45b6cb320bec21b043e829f7602da55d40d7eed00f36b845c88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 56630da5b79aeab27d1ed2a0018452eddce63ea8557024ff27010b710854dbdd
[INFO] running `Command { std: "docker" "start" "-a" "56630da5b79aeab27d1ed2a0018452eddce63ea8557024ff27010b710854dbdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterware v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "56630da5b79aeab27d1ed2a0018452eddce63ea8557024ff27010b710854dbdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56630da5b79aeab27d1ed2a0018452eddce63ea8557024ff27010b710854dbdd", kill_on_drop: false }`
[INFO] [stdout] 56630da5b79aeab27d1ed2a0018452eddce63ea8557024ff27010b710854dbdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 1eff66ebed0f02815b9c3a10b04c3e940bc58d915691208949adc4ad057751a2
[INFO] running `Command { std: "docker" "start" "-a" "1eff66ebed0f02815b9c3a10b04c3e940bc58d915691208949adc4ad057751a2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iterware-54e08bfd4f99d8ae)
[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" "1eff66ebed0f02815b9c3a10b04c3e940bc58d915691208949adc4ad057751a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eff66ebed0f02815b9c3a10b04c3e940bc58d915691208949adc4ad057751a2", kill_on_drop: false }`
[INFO] [stdout] 1eff66ebed0f02815b9c3a10b04c3e940bc58d915691208949adc4ad057751a2