[INFO] fetching crate fallible-iterator 0.2.0...
[INFO] testing fallible-iterator-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate fallible-iterator 0.2.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate fallible-iterator 0.2.0 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 fallible-iterator 0.2.0
[INFO] finished tweaking crates.io crate fallible-iterator 0.2.0
[INFO] tweaked toml for crates.io crate fallible-iterator 0.2.0 written to /workspace/builds/worker-14/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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 5b2c694d9fc776359d48dd905689152277e57e7265645e6441d4d5c57bd7db40
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5b2c694d9fc776359d48dd905689152277e57e7265645e6441d4d5c57bd7db40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b2c694d9fc776359d48dd905689152277e57e7265645e6441d4d5c57bd7db40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2c694d9fc776359d48dd905689152277e57e7265645e6441d4d5c57bd7db40", kill_on_drop: false }`
[INFO] [stdout] 5b2c694d9fc776359d48dd905689152277e57e7265645e6441d4d5c57bd7db40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] d9c7c681e1256a552214f7501ba0589bc2788df7eb7e0c1932cb4f910adcc8a7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d9c7c681e1256a552214f7501ba0589bc2788df7eb7e0c1932cb4f910adcc8a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling fallible-iterator v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "d9c7c681e1256a552214f7501ba0589bc2788df7eb7e0c1932cb4f910adcc8a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9c7c681e1256a552214f7501ba0589bc2788df7eb7e0c1932cb4f910adcc8a7", kill_on_drop: false }`
[INFO] [stdout] d9c7c681e1256a552214f7501ba0589bc2788df7eb7e0c1932cb4f910adcc8a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 401b8db3b02842e3b5ed5d2395ac230e0e9c7e9aafa09940946c6d7cd6475067
[INFO] running `Command { std: "docker" "start" "-a" "401b8db3b02842e3b5ed5d2395ac230e0e9c7e9aafa09940946c6d7cd6475067", 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] [stderr]    Compiling fallible-iterator v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "401b8db3b02842e3b5ed5d2395ac230e0e9c7e9aafa09940946c6d7cd6475067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "401b8db3b02842e3b5ed5d2395ac230e0e9c7e9aafa09940946c6d7cd6475067", kill_on_drop: false }`
[INFO] [stdout] 401b8db3b02842e3b5ed5d2395ac230e0e9c7e9aafa09940946c6d7cd6475067
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 4b8f7c43796a0c1f21ff66d18447e8f93592223a20d37593c645844add404cae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4b8f7c43796a0c1f21ff66d18447e8f93592223a20d37593c645844add404cae", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fallible_iterator-06ac3acf496aac82)
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test test::all ... ok
[INFO] [stdout] test test::chain ... ok
[INFO] [stdout] test test::flatten ... ok
[INFO] [stdout] test test::flat_map ... ok
[INFO] [stdout] test test::iterator ... ok
[INFO] [stdout] test test::last ... ok
[INFO] [stdout] test test::fold ... ok
[INFO] [stdout] test test::map ... ok
[INFO] [stdout] test test::max ... ok
[INFO] [stdout] test test::cycle ... ok
[INFO] [stdout] test test::enumerate ... ok
[INFO] [stdout] test test::filter ... ok
[INFO] [stdout] test test::for_each ... ok
[INFO] [stdout] test test::inspect ... ok
[INFO] [stdout] test test::find ... ok
[INFO] [stdout] test test::filter_map ... ok
[INFO] [stdout] test test::any ... ok
[INFO] [stdout] test test::position ... ok
[INFO] [stdout] test test::nth ... ok
[INFO] [stdout] test test::partition ... ok
[INFO] [stdout] test test::min ... ok
[INFO] [stdout] test test::min_by ... ok
[INFO] [stdout] test test::take ... ok
[INFO] [stdout] test test::step_by ... ok
[INFO] [stdout] test test::max_by_key ... ok
[INFO] [stdout] test test::peekable ... ok
[INFO] [stdout] test test::min_by_key ... ok
[INFO] [stdout] test test::skip_while ... ok
[INFO] [stdout] test test::skip ... ok
[INFO] [stdout] test test::scan ... ok
[INFO] [stdout] test test::max_by ... ok
[INFO] [stderr]    Doc-tests fallible-iterator
[INFO] [stdout] test test::find_map ... ok
[INFO] [stdout] test test::count ... ok
[INFO] [stdout] test test::map_err ... ok
[INFO] [stdout] test test::unzip ... ok
[INFO] [stdout] test test::take_while ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ignored
[INFO] [stdout] test src/lib.rs - (line 22) ... ignored
[INFO] [stdout] test src/lib.rs - (line 40) ... ignored
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4b8f7c43796a0c1f21ff66d18447e8f93592223a20d37593c645844add404cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b8f7c43796a0c1f21ff66d18447e8f93592223a20d37593c645844add404cae", kill_on_drop: false }`
[INFO] [stdout] 4b8f7c43796a0c1f21ff66d18447e8f93592223a20d37593c645844add404cae