[INFO] fetching crate fp-growth 0.1.6...
[INFO] testing fp-growth-0.1.6 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate fp-growth 0.1.6 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate fp-growth 0.1.6 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fp-growth 0.1.6
[INFO] finished tweaking crates.io crate fp-growth 0.1.6
[INFO] tweaked toml for crates.io crate fp-growth 0.1.6 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate fp-growth 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e631bce609f0fee412c4db065fb28e72c5f7d9a77183da3028d2f1c2a2e4067
[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" "5e631bce609f0fee412c4db065fb28e72c5f7d9a77183da3028d2f1c2a2e4067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e631bce609f0fee412c4db065fb28e72c5f7d9a77183da3028d2f1c2a2e4067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e631bce609f0fee412c4db065fb28e72c5f7d9a77183da3028d2f1c2a2e4067", kill_on_drop: false }`
[INFO] [stdout] 5e631bce609f0fee412c4db065fb28e72c5f7d9a77183da3028d2f1c2a2e4067
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57c6fa3098eb734f94659a81ace7901ae42298371569f6a0d156f1ce36428e41
[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" "57c6fa3098eb734f94659a81ace7901ae42298371569f6a0d156f1ce36428e41", kill_on_drop: false }`
[INFO] [stderr]    Compiling fp-growth v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "57c6fa3098eb734f94659a81ace7901ae42298371569f6a0d156f1ce36428e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57c6fa3098eb734f94659a81ace7901ae42298371569f6a0d156f1ce36428e41", kill_on_drop: false }`
[INFO] [stdout] 57c6fa3098eb734f94659a81ace7901ae42298371569f6a0d156f1ce36428e41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff2b6a7bfc179bb2efe0aaffce00e13bd192e46bd28a221ef065e830c60e82a1
[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" "ff2b6a7bfc179bb2efe0aaffce00e13bd192e46bd28a221ef065e830c60e82a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling fp-growth v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "ff2b6a7bfc179bb2efe0aaffce00e13bd192e46bd28a221ef065e830c60e82a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2b6a7bfc179bb2efe0aaffce00e13bd192e46bd28a221ef065e830c60e82a1", kill_on_drop: false }`
[INFO] [stdout] ff2b6a7bfc179bb2efe0aaffce00e13bd192e46bd28a221ef065e830c60e82a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6469acd1f538f8e5f97611ff7e37bcac2e15990e83dea65b7d2cc5f70c89acb9
[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" "6469acd1f538f8e5f97611ff7e37bcac2e15990e83dea65b7d2cc5f70c89acb9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fp_growth-1a0134c8e4c368eb)
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_tree ... ok
[INFO] [stdout] test tests::test_node ... ok
[INFO] [stdout] test tests::test_algorithm ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fp-growth
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.44s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6469acd1f538f8e5f97611ff7e37bcac2e15990e83dea65b7d2cc5f70c89acb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6469acd1f538f8e5f97611ff7e37bcac2e15990e83dea65b7d2cc5f70c89acb9", kill_on_drop: false }`
[INFO] [stdout] 6469acd1f538f8e5f97611ff7e37bcac2e15990e83dea65b7d2cc5f70c89acb9