[INFO] fetching crate rc_arena 0.1.0...
[INFO] testing rc_arena-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rc_arena 0.1.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate rc_arena 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 rc_arena 0.1.0
[INFO] finished tweaking crates.io crate rc_arena 0.1.0
[INFO] tweaked toml for crates.io crate rc_arena 0.1.0 written to /workspace/builds/worker-49/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-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 75b2f0e99a1122a75b70462b05d5ad90f2a2460edd1415c7309517ebebc98775
[INFO] running `Command { std: "docker" "start" "-a" "75b2f0e99a1122a75b70462b05d5ad90f2a2460edd1415c7309517ebebc98775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75b2f0e99a1122a75b70462b05d5ad90f2a2460edd1415c7309517ebebc98775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75b2f0e99a1122a75b70462b05d5ad90f2a2460edd1415c7309517ebebc98775", kill_on_drop: false }`
[INFO] [stdout] 75b2f0e99a1122a75b70462b05d5ad90f2a2460edd1415c7309517ebebc98775
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] c43680663c36384c0e6fee2250fdbc2403d126dd0edc8c743633ea4dd7c26cb6
[INFO] running `Command { std: "docker" "start" "-a" "c43680663c36384c0e6fee2250fdbc2403d126dd0edc8c743633ea4dd7c26cb6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rc_arena v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "c43680663c36384c0e6fee2250fdbc2403d126dd0edc8c743633ea4dd7c26cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c43680663c36384c0e6fee2250fdbc2403d126dd0edc8c743633ea4dd7c26cb6", kill_on_drop: false }`
[INFO] [stdout] c43680663c36384c0e6fee2250fdbc2403d126dd0edc8c743633ea4dd7c26cb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 2a0bc6b2f69cf722b1c13983cf3e2ad038a8d541c3315e6fe00d70bede0edbad
[INFO] running `Command { std: "docker" "start" "-a" "2a0bc6b2f69cf722b1c13983cf3e2ad038a8d541c3315e6fe00d70bede0edbad", kill_on_drop: false }`
[INFO] [stderr]    Compiling rc_arena v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.89s
[INFO] running `Command { std: "docker" "inspect" "2a0bc6b2f69cf722b1c13983cf3e2ad038a8d541c3315e6fe00d70bede0edbad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a0bc6b2f69cf722b1c13983cf3e2ad038a8d541c3315e6fe00d70bede0edbad", kill_on_drop: false }`
[INFO] [stdout] 2a0bc6b2f69cf722b1c13983cf3e2ad038a8d541c3315e6fe00d70bede0edbad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 4b8cb5559eb58c80bf37321894f325f65014883b11f726425019a3a737fcb1df
[INFO] running `Command { std: "docker" "start" "-a" "4b8cb5559eb58c80bf37321894f325f65014883b11f726425019a3a737fcb1df", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rc_arena-77af7f40d10f7c34)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test basic_usecase ... ok
[INFO] [stdout] test drops_at_once ... ok
[INFO] [stdout] test iterates ... ok
[INFO] [stdout] test formatting ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rc_arena
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Arena<T>::alloc (line 100) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::each (line 151) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4b8cb5559eb58c80bf37321894f325f65014883b11f726425019a3a737fcb1df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b8cb5559eb58c80bf37321894f325f65014883b11f726425019a3a737fcb1df", kill_on_drop: false }`
[INFO] [stdout] 4b8cb5559eb58c80bf37321894f325f65014883b11f726425019a3a737fcb1df