[INFO] fetching crate fallible-iterator 0.2.0...
[INFO] testing fallible-iterator-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate fallible-iterator 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate fallible-iterator 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e3cdafe3cc7e2ed1e1831b75636b9997bbdf722fb3db9d3d6109be34c2393e1
[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" "5e3cdafe3cc7e2ed1e1831b75636b9997bbdf722fb3db9d3d6109be34c2393e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e3cdafe3cc7e2ed1e1831b75636b9997bbdf722fb3db9d3d6109be34c2393e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e3cdafe3cc7e2ed1e1831b75636b9997bbdf722fb3db9d3d6109be34c2393e1", kill_on_drop: false }`
[INFO] [stdout] 5e3cdafe3cc7e2ed1e1831b75636b9997bbdf722fb3db9d3d6109be34c2393e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4455a33334e868348c3fb3a9dc69ca032440048fd990f78a249ea7d5410f34b7
[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" "4455a33334e868348c3fb3a9dc69ca032440048fd990f78a249ea7d5410f34b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling fallible-iterator v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "4455a33334e868348c3fb3a9dc69ca032440048fd990f78a249ea7d5410f34b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4455a33334e868348c3fb3a9dc69ca032440048fd990f78a249ea7d5410f34b7", kill_on_drop: false }`
[INFO] [stdout] 4455a33334e868348c3fb3a9dc69ca032440048fd990f78a249ea7d5410f34b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4d25f4f8c5007e0f4263b72cc3b8ce42d74e9d77413afcdb90a6bd8f407f194
[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" "d4d25f4f8c5007e0f4263b72cc3b8ce42d74e9d77413afcdb90a6bd8f407f194", kill_on_drop: false }`
[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 4.13s
[INFO] running `Command { std: "docker" "inspect" "d4d25f4f8c5007e0f4263b72cc3b8ce42d74e9d77413afcdb90a6bd8f407f194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4d25f4f8c5007e0f4263b72cc3b8ce42d74e9d77413afcdb90a6bd8f407f194", kill_on_drop: false }`
[INFO] [stdout] d4d25f4f8c5007e0f4263b72cc3b8ce42d74e9d77413afcdb90a6bd8f407f194
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] 3ebe6e37258c765d6391ab9741d5f1944134d4a37d30ded4f7004f2a67ccd81d
[INFO] running `Command { std: "docker" "start" "-a" "3ebe6e37258c765d6391ab9741d5f1944134d4a37d30ded4f7004f2a67ccd81d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 36 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fallible_iterator-e43f2b50d6f7ae67
[INFO] [stdout] test test::any ... ok
[INFO] [stdout] test test::count ... ok
[INFO] [stdout] test test::chain ... ok
[INFO] [stdout] test test::all ... ok
[INFO] [stdout] test test::cycle ... ok
[INFO] [stdout] test test::map_err ... ok
[INFO] [stdout] test test::map ... ok
[INFO] [stdout] test test::last ... ok
[INFO] [stdout] test test::for_each ... ok
[INFO] [stdout] test test::fold ... ok
[INFO] [stdout] test test::min ... ok
[INFO] [stdout] test test::min_by ... ok
[INFO] [stdout] test test::min_by_key ... ok
[INFO] [stdout] test test::nth ... ok
[INFO] [stdout] test test::partition ... ok
[INFO] [stdout] test test::peekable ... ok
[INFO] [stdout] test test::position ... ok
[INFO] [stdout] test test::scan ... ok
[INFO] [stdout] test test::skip ... ok
[INFO] [stdout] test test::skip_while ... ok
[INFO] [stdout] test test::flatten ... ok
[INFO] [stdout] test test::step_by ... ok
[INFO] [stdout] test test::take ... ok
[INFO] [stdout] test test::take_while ... ok
[INFO] [stdout] test test::unzip ... ok
[INFO] [stdout] test test::enumerate ... ok
[INFO] [stdout] test test::find_map ... ok
[INFO] [stdout] test test::max ... ok
[INFO] [stdout] test test::filter ... ok
[INFO] [stdout] test test::filter_map ... ok
[INFO] [stdout] test test::max_by ... ok
[INFO] [stdout] test test::find ... ok
[INFO] [stdout] test test::flat_map ... ok
[INFO] [stdout] test test::inspect ... ok
[INFO] [stdout] test test::max_by_key ... ok
[INFO] [stdout] test test::iterator ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fallible-iterator
[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 0.85s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3ebe6e37258c765d6391ab9741d5f1944134d4a37d30ded4f7004f2a67ccd81d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ebe6e37258c765d6391ab9741d5f1944134d4a37d30ded4f7004f2a67ccd81d", kill_on_drop: false }`
[INFO] [stdout] 3ebe6e37258c765d6391ab9741d5f1944134d4a37d30ded4f7004f2a67ccd81d