[INFO] fetching crate slab_allocator_rs 1.0.0...
[INFO] testing slab_allocator_rs-1.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate slab_allocator_rs 1.0.0 into /workspace/builds/worker-95/source
[INFO] validating manifest of crates.io crate slab_allocator_rs 1.0.0 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 slab_allocator_rs 1.0.0
[INFO] finished tweaking crates.io crate slab_allocator_rs 1.0.0
[INFO] tweaked toml for crates.io crate slab_allocator_rs 1.0.0 written to /workspace/builds/worker-95/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-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] 16102b5aac1fa24be51a7bc133e28e2605e158f685b6d5d16b9a0719ba6e4985
[INFO] running `Command { std: "docker" "start" "-a" "16102b5aac1fa24be51a7bc133e28e2605e158f685b6d5d16b9a0719ba6e4985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16102b5aac1fa24be51a7bc133e28e2605e158f685b6d5d16b9a0719ba6e4985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16102b5aac1fa24be51a7bc133e28e2605e158f685b6d5d16b9a0719ba6e4985", kill_on_drop: false }`
[INFO] [stdout] 16102b5aac1fa24be51a7bc133e28e2605e158f685b6d5d16b9a0719ba6e4985
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] 95265a3bae5f59c562814c842d4ebb25dc2fca7f396bae0948b2c450a162f9e7
[INFO] running `Command { std: "docker" "start" "-a" "95265a3bae5f59c562814c842d4ebb25dc2fca7f396bae0948b2c450a162f9e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling spin v0.7.1
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling buddy_system_allocator v0.8.0
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling slab_allocator_rs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "95265a3bae5f59c562814c842d4ebb25dc2fca7f396bae0948b2c450a162f9e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95265a3bae5f59c562814c842d4ebb25dc2fca7f396bae0948b2c450a162f9e7", kill_on_drop: false }`
[INFO] [stdout] 95265a3bae5f59c562814c842d4ebb25dc2fca7f396bae0948b2c450a162f9e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] c825c1e26c05fd5934bef922b32423e7817decac995803c788ce59e332678b6f
[INFO] running `Command { std: "docker" "start" "-a" "c825c1e26c05fd5934bef922b32423e7817decac995803c788ce59e332678b6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling slab_allocator_rs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "c825c1e26c05fd5934bef922b32423e7817decac995803c788ce59e332678b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c825c1e26c05fd5934bef922b32423e7817decac995803c788ce59e332678b6f", kill_on_drop: false }`
[INFO] [stdout] c825c1e26c05fd5934bef922b32423e7817decac995803c788ce59e332678b6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] 4191c3de39063f4339b0c58107f51017dcab10d99c6c3be42d6c75ba687d77c3
[INFO] running `Command { std: "docker" "start" "-a" "4191c3de39063f4339b0c58107f51017dcab10d99c6c3be42d6c75ba687d77c3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/slab_allocator_rs-fc15ae31a86e0c17)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test::allocate_multiple_sizes ... ok
[INFO] [stdout] test test::allocate_and_free_double_usize ... ok
[INFO] [stdout] test test::allocate_double_usize ... ok
[INFO] [stdout] test test::allocate_one_4096_block ... ok
[INFO] [stdout] test test::oom ... ok
[INFO] [stdout] test test::locked_heap_allocate_multiple_sizes ... ok
[INFO] [stdout] test test::reallocate_double_usize ... ok
[INFO] [stdout] test test::allocate_multiple_4096_blocks ... ok
[INFO] [stdout] test test::allocate_one_8192_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slab_allocator_rs
[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" "4191c3de39063f4339b0c58107f51017dcab10d99c6c3be42d6c75ba687d77c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4191c3de39063f4339b0c58107f51017dcab10d99c6c3be42d6c75ba687d77c3", kill_on_drop: false }`
[INFO] [stdout] 4191c3de39063f4339b0c58107f51017dcab10d99c6c3be42d6c75ba687d77c3