[INFO] fetching crate disjoint_set_forest 0.1.0...
[INFO] testing disjoint_set_forest-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate disjoint_set_forest 0.1.0 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate disjoint_set_forest 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate disjoint_set_forest 0.1.0
[INFO] finished tweaking crates.io crate disjoint_set_forest 0.1.0
[INFO] tweaked toml for crates.io crate disjoint_set_forest 0.1.0 written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aaa7e819d652db286e7b81545b934ec4fe93fb22b60f5fcf4dcb359ba884cc51
[INFO] running `Command { std: "docker" "start" "-a" "aaa7e819d652db286e7b81545b934ec4fe93fb22b60f5fcf4dcb359ba884cc51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aaa7e819d652db286e7b81545b934ec4fe93fb22b60f5fcf4dcb359ba884cc51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa7e819d652db286e7b81545b934ec4fe93fb22b60f5fcf4dcb359ba884cc51", kill_on_drop: false }`
[INFO] [stdout] aaa7e819d652db286e7b81545b934ec4fe93fb22b60f5fcf4dcb359ba884cc51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 013889dc7523f467681baaaf719df3a885981ef3d6b9266b7d95e7d81bb7dbd4
[INFO] running `Command { std: "docker" "start" "-a" "013889dc7523f467681baaaf719df3a885981ef3d6b9266b7d95e7d81bb7dbd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling disjoint_set_forest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "013889dc7523f467681baaaf719df3a885981ef3d6b9266b7d95e7d81bb7dbd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "013889dc7523f467681baaaf719df3a885981ef3d6b9266b7d95e7d81bb7dbd4", kill_on_drop: false }`
[INFO] [stdout] 013889dc7523f467681baaaf719df3a885981ef3d6b9266b7d95e7d81bb7dbd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 301299f8e68dbce6b7957a47b1cbcba2a8e344d28bb015980e0151de645d3ee9
[INFO] running `Command { std: "docker" "start" "-a" "301299f8e68dbce6b7957a47b1cbcba2a8e344d28bb015980e0151de645d3ee9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling disjoint_set_forest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "301299f8e68dbce6b7957a47b1cbcba2a8e344d28bb015980e0151de645d3ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "301299f8e68dbce6b7957a47b1cbcba2a8e344d28bb015980e0151de645d3ee9", kill_on_drop: false }`
[INFO] [stdout] 301299f8e68dbce6b7957a47b1cbcba2a8e344d28bb015980e0151de645d3ee9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66ef7ca3b12cc75002cc6c07f3afa7d0c6c0d37c6ab35bda7bb58b623c7bf9e2
[INFO] running `Command { std: "docker" "start" "-a" "66ef7ca3b12cc75002cc6c07f3afa7d0c6c0d37c6ab35bda7bb58b623c7bf9e2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/disjoint_set_forest-931272d1b6562a04)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests disjoint_set_forest
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::test_eq ... ok
[INFO] [stdout] test tests::test_err ... ok
[INFO] [stdout] test tests::test_extend ... ok
[INFO] [stdout] test tests::test_from_iter ... ok
[INFO] [stdout] test tests::test_insert ... ok
[INFO] [stdout] test tests::test_into_iter ... ok
[INFO] [stdout] test tests::test_union_and_same_set ... ok
[INFO] [stdout] test tests::test_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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" "66ef7ca3b12cc75002cc6c07f3afa7d0c6c0d37c6ab35bda7bb58b623c7bf9e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66ef7ca3b12cc75002cc6c07f3afa7d0c6c0d37c6ab35bda7bb58b623c7bf9e2", kill_on_drop: false }`
[INFO] [stdout] 66ef7ca3b12cc75002cc6c07f3afa7d0c6c0d37c6ab35bda7bb58b623c7bf9e2