[INFO] fetching crate iter_from_fn 1.0.0...
[INFO] testing iter_from_fn-1.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate iter_from_fn 1.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate iter_from_fn 1.0.0 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 iter_from_fn 1.0.0
[INFO] finished tweaking crates.io crate iter_from_fn 1.0.0
[INFO] tweaked toml for crates.io crate iter_from_fn 1.0.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] fb61678521717ba67cafed01078aeeb632313387e180cd38ddc5af334141d3c9
[INFO] running `Command { std: "docker" "start" "-a" "fb61678521717ba67cafed01078aeeb632313387e180cd38ddc5af334141d3c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb61678521717ba67cafed01078aeeb632313387e180cd38ddc5af334141d3c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb61678521717ba67cafed01078aeeb632313387e180cd38ddc5af334141d3c9", kill_on_drop: false }`
[INFO] [stdout] fb61678521717ba67cafed01078aeeb632313387e180cd38ddc5af334141d3c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 4330aa2e03d366736c3afa16ba3acfcf518ba91edd4588389ed3a5f420c0ac48
[INFO] running `Command { std: "docker" "start" "-a" "4330aa2e03d366736c3afa16ba3acfcf518ba91edd4588389ed3a5f420c0ac48", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter_from_fn v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "4330aa2e03d366736c3afa16ba3acfcf518ba91edd4588389ed3a5f420c0ac48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4330aa2e03d366736c3afa16ba3acfcf518ba91edd4588389ed3a5f420c0ac48", kill_on_drop: false }`
[INFO] [stdout] 4330aa2e03d366736c3afa16ba3acfcf518ba91edd4588389ed3a5f420c0ac48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] adf2af79ffdb172ad42eb661e531f096579accdc112f26b6dee032d149ea3c54
[INFO] running `Command { std: "docker" "start" "-a" "adf2af79ffdb172ad42eb661e531f096579accdc112f26b6dee032d149ea3c54", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter_from_fn v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "adf2af79ffdb172ad42eb661e531f096579accdc112f26b6dee032d149ea3c54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adf2af79ffdb172ad42eb661e531f096579accdc112f26b6dee032d149ea3c54", kill_on_drop: false }`
[INFO] [stdout] adf2af79ffdb172ad42eb661e531f096579accdc112f26b6dee032d149ea3c54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 51cb9ed173a6b24476838969bfaa7a8994cc137681a0bbaf4fc80f023ad0d1d4
[INFO] running `Command { std: "docker" "start" "-a" "51cb9ed173a6b24476838969bfaa7a8994cc137681a0bbaf4fc80f023ad0d1d4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iter_from_fn-aa50a46e32d83a34)
[INFO] [stdout] test tests::test_inside_for ... ok
[INFO] [stdout] test tests::test_ones ... ok
[INFO] [stdout] test tests::test_mutable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iter_from_fn
[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" "51cb9ed173a6b24476838969bfaa7a8994cc137681a0bbaf4fc80f023ad0d1d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51cb9ed173a6b24476838969bfaa7a8994cc137681a0bbaf4fc80f023ad0d1d4", kill_on_drop: false }`
[INFO] [stdout] 51cb9ed173a6b24476838969bfaa7a8994cc137681a0bbaf4fc80f023ad0d1d4