[INFO] fetching crate causal-length 0.2.0...
[INFO] testing causal-length-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate causal-length 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate causal-length 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 causal-length 0.2.0
[INFO] finished tweaking crates.io crate causal-length 0.2.0
[INFO] tweaked toml for crates.io crate causal-length 0.2.0 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 0b75c8249543427fc22c8af5a8343f99d962752f3ad3ca80b87a13b453230dd8
[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" "0b75c8249543427fc22c8af5a8343f99d962752f3ad3ca80b87a13b453230dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b75c8249543427fc22c8af5a8343f99d962752f3ad3ca80b87a13b453230dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b75c8249543427fc22c8af5a8343f99d962752f3ad3ca80b87a13b453230dd8", kill_on_drop: false }`
[INFO] [stdout] 0b75c8249543427fc22c8af5a8343f99d962752f3ad3ca80b87a13b453230dd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b307f54363d356c3e89396ef5ad5ec32e11a1960e6c28b41e02ac1b65c11778e
[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" "b307f54363d356c3e89396ef5ad5ec32e11a1960e6c28b41e02ac1b65c11778e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling causal-length v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.95s
[INFO] running `Command { std: "docker" "inspect" "b307f54363d356c3e89396ef5ad5ec32e11a1960e6c28b41e02ac1b65c11778e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b307f54363d356c3e89396ef5ad5ec32e11a1960e6c28b41e02ac1b65c11778e", kill_on_drop: false }`
[INFO] [stdout] b307f54363d356c3e89396ef5ad5ec32e11a1960e6c28b41e02ac1b65c11778e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] c435cf0ef116e9eb20250a610a5c29b5fddf4fa7d1772c162004a5b3858c506b
[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" "c435cf0ef116e9eb20250a610a5c29b5fddf4fa7d1772c162004a5b3858c506b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling quickcheck_macros v1.0.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling quickcheck v1.0.3
[INFO] [stderr]    Compiling causal-length v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 19.58s
[INFO] running `Command { std: "docker" "inspect" "c435cf0ef116e9eb20250a610a5c29b5fddf4fa7d1772c162004a5b3858c506b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c435cf0ef116e9eb20250a610a5c29b5fddf4fa7d1772c162004a5b3858c506b", kill_on_drop: false }`
[INFO] [stdout] c435cf0ef116e9eb20250a610a5c29b5fddf4fa7d1772c162004a5b3858c506b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 2995d103869684f6c9927699ea1ccfa89da4769c2368b131bf7f4665dc2afe96
[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" "2995d103869684f6c9927699ea1ccfa89da4769c2368b131bf7f4665dc2afe96", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/causal_length-767c5d636f5621a5)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test map::tests::test_merge ... ok
[INFO] [stdout] test map::tests::test_add ... ok
[INFO] [stdout] test map::tests::test_retain ... ok
[INFO] [stdout] test map::tests::test_serialization ... ok
[INFO] [stdout] test map::tests::test_remove ... ok
[INFO] [stdout] test map::tests::test_overwrite ... ok
[INFO] [stdout] test set::tests::test_merge ... ok
[INFO] [stdout] test set::tests::test_remove ... ok
[INFO] [stdout] test set::tests::test_retain ... ok
[INFO] [stdout] test map::tests::test_order_independence ... ok
[INFO] [stdout] test register::tests::test_fup ... ok
[INFO] [stdout] test register::tests::test_merge ... ok
[INFO] [stdout] test register::tests::test_serialization ... ok
[INFO] [stdout] test register::tests::is_merge_commutative ... ok
[INFO] [stdout] test set::tests::test_add ... ok
[INFO] [stdout] test set::tests::test_order_independence ... ok
[INFO] [stdout] test set::tests::test_serialization ... ok
[INFO] [stdout] test map::tests::simple_model::implementation_matches_model ... ok
[INFO] [stdout] test set::tests::implementation_matches_model ... ok
[INFO] [stdout] test set::tests::is_merge_commutative ... ok
[INFO] [stdout] test map::tests::test_merge_commutative ... ok
[INFO] [stdout] test set::tests::is_merge_order_independent ... ok
[INFO] [stderr]    Doc-tests causal-length
[INFO] [stdout] test map::tests::is_merge_order_independent ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[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" "2995d103869684f6c9927699ea1ccfa89da4769c2368b131bf7f4665dc2afe96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2995d103869684f6c9927699ea1ccfa89da4769c2368b131bf7f4665dc2afe96", kill_on_drop: false }`
[INFO] [stdout] 2995d103869684f6c9927699ea1ccfa89da4769c2368b131bf7f4665dc2afe96