[INFO] fetching crate unflatten 0.1.1...
[INFO] testing unflatten-0.1.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate unflatten 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate unflatten 0.1.1 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 unflatten 0.1.1
[INFO] finished tweaking crates.io crate unflatten 0.1.1
[INFO] tweaked toml for crates.io crate unflatten 0.1.1 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] [stderr]     Blocking waiting for file lock on package cache
[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] e8c32f0e52972eed5ce4956e420b7a195b2fdd4c42bd03b4d3776257c847770e
[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" "e8c32f0e52972eed5ce4956e420b7a195b2fdd4c42bd03b4d3776257c847770e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8c32f0e52972eed5ce4956e420b7a195b2fdd4c42bd03b4d3776257c847770e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8c32f0e52972eed5ce4956e420b7a195b2fdd4c42bd03b4d3776257c847770e", kill_on_drop: false }`
[INFO] [stdout] e8c32f0e52972eed5ce4956e420b7a195b2fdd4c42bd03b4d3776257c847770e
[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] 95b8654e5b1a4ef23c5b1f2d8007b01f2c4f7aaed84f72259f7182d9bf0ff90b
[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" "95b8654e5b1a4ef23c5b1f2d8007b01f2c4f7aaed84f72259f7182d9bf0ff90b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unflatten v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "95b8654e5b1a4ef23c5b1f2d8007b01f2c4f7aaed84f72259f7182d9bf0ff90b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95b8654e5b1a4ef23c5b1f2d8007b01f2c4f7aaed84f72259f7182d9bf0ff90b", kill_on_drop: false }`
[INFO] [stdout] 95b8654e5b1a4ef23c5b1f2d8007b01f2c4f7aaed84f72259f7182d9bf0ff90b
[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] 48d0669b49e3b6ac68cf93cffd79d93feb795b9ae108d2cd7e40ab0cf387cee8
[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" "48d0669b49e3b6ac68cf93cffd79d93feb795b9ae108d2cd7e40ab0cf387cee8", kill_on_drop: false }`
[INFO] [stderr]    Compiling unflatten v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "48d0669b49e3b6ac68cf93cffd79d93feb795b9ae108d2cd7e40ab0cf387cee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48d0669b49e3b6ac68cf93cffd79d93feb795b9ae108d2cd7e40ab0cf387cee8", kill_on_drop: false }`
[INFO] [stdout] 48d0669b49e3b6ac68cf93cffd79d93feb795b9ae108d2cd7e40ab0cf387cee8
[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] [stdout] 9e1e01ad18e3eb82d1813facae128a7c7a0b960c6ed589f93df439d4badb4432
[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" "9e1e01ad18e3eb82d1813facae128a7c7a0b960c6ed589f93df439d4badb4432", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unflatten-eb77370a0912e1c8
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::flattening_unflattened_none_returns_same ... ok
[INFO] [stdout] test tests::unflattening_flattened_some_returns_same ... ok
[INFO] [stdout] test tests::unflattening_none_works ... ok
[INFO] [stdout] test tests::flattening_unflattened_some_returns_same ... ok
[INFO] [stdout] test tests::unflattening_some_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unflatten
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.71s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9e1e01ad18e3eb82d1813facae128a7c7a0b960c6ed589f93df439d4badb4432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e1e01ad18e3eb82d1813facae128a7c7a0b960c6ed589f93df439d4badb4432", kill_on_drop: false }`
[INFO] [stdout] 9e1e01ad18e3eb82d1813facae128a7c7a0b960c6ed589f93df439d4badb4432