[INFO] fetching crate pool_barrier 0.1.1...
[INFO] testing pool_barrier-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate pool_barrier 0.1.1 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate pool_barrier 0.1.1 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 pool_barrier 0.1.1
[INFO] finished tweaking crates.io crate pool_barrier 0.1.1
[INFO] tweaked toml for crates.io crate pool_barrier 0.1.1 written to /workspace/builds/worker-77/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 46dcecc82369f5ef58ac7c198a41f116e24e9b0fe5539a531dc3ab825eb68c43
[INFO] running `Command { std: "docker" "start" "-a" "46dcecc82369f5ef58ac7c198a41f116e24e9b0fe5539a531dc3ab825eb68c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46dcecc82369f5ef58ac7c198a41f116e24e9b0fe5539a531dc3ab825eb68c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46dcecc82369f5ef58ac7c198a41f116e24e9b0fe5539a531dc3ab825eb68c43", kill_on_drop: false }`
[INFO] [stdout] 46dcecc82369f5ef58ac7c198a41f116e24e9b0fe5539a531dc3ab825eb68c43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 1b921aa4f1644deb30fd758346d21fb68fcd09c14a3aebbe4644f98f29852a45
[INFO] running `Command { std: "docker" "start" "-a" "1b921aa4f1644deb30fd758346d21fb68fcd09c14a3aebbe4644f98f29852a45", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pool_barrier v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "1b921aa4f1644deb30fd758346d21fb68fcd09c14a3aebbe4644f98f29852a45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b921aa4f1644deb30fd758346d21fb68fcd09c14a3aebbe4644f98f29852a45", kill_on_drop: false }`
[INFO] [stdout] 1b921aa4f1644deb30fd758346d21fb68fcd09c14a3aebbe4644f98f29852a45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 436f097a8bfd79686334dca3d1db090bedcfd4f70f9d8a0464acb0d7e70cad2a
[INFO] running `Command { std: "docker" "start" "-a" "436f097a8bfd79686334dca3d1db090bedcfd4f70f9d8a0464acb0d7e70cad2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling pool_barrier v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "436f097a8bfd79686334dca3d1db090bedcfd4f70f9d8a0464acb0d7e70cad2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "436f097a8bfd79686334dca3d1db090bedcfd4f70f9d8a0464acb0d7e70cad2a", kill_on_drop: false }`
[INFO] [stdout] 436f097a8bfd79686334dca3d1db090bedcfd4f70f9d8a0464acb0d7e70cad2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] db14e8059115dcc35ba58783702b0d99e4f0213cb294bfb330fb27ec5988ba4e
[INFO] running `Command { std: "docker" "start" "-a" "db14e8059115dcc35ba58783702b0d99e4f0213cb294bfb330fb27ec5988ba4e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pool_barrier-6c8c63d92ad9724f)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::same_thread ... ok
[INFO] [stdout] test tests::not_enough_checkpoints ... ok
[INFO] [stdout] test tests::too_many_checkpoints - should panic ... ok
[INFO] [stdout] test tests::test_finished_true ... ok
[INFO] [stdout] test tests::test_finished_false ... ok
[INFO] [stdout] test tests::single_use ... ok
[INFO] [stdout] test tests::test_checkpoint_panic_detection ... ok
[INFO] [stdout] test tests::reuse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.42s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pool_barrier
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db14e8059115dcc35ba58783702b0d99e4f0213cb294bfb330fb27ec5988ba4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db14e8059115dcc35ba58783702b0d99e4f0213cb294bfb330fb27ec5988ba4e", kill_on_drop: false }`
[INFO] [stdout] db14e8059115dcc35ba58783702b0d99e4f0213cb294bfb330fb27ec5988ba4e