[INFO] fetching crate tree_arena 0.1.0...
[INFO] testing tree_arena-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate tree_arena 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate tree_arena 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tree_arena 0.1.0
[INFO] tweaked toml for crates.io crate tree_arena 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree_arena 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tree_arena 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ec3e8fbc06e12cfc3078d0da0990b8fc4d5acb02cc2d8bd5c0c5a4b314d059c
[INFO] running `Command { std: "docker" "start" "-a" "1ec3e8fbc06e12cfc3078d0da0990b8fc4d5acb02cc2d8bd5c0c5a4b314d059c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ec3e8fbc06e12cfc3078d0da0990b8fc4d5acb02cc2d8bd5c0c5a4b314d059c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ec3e8fbc06e12cfc3078d0da0990b8fc4d5acb02cc2d8bd5c0c5a4b314d059c", kill_on_drop: false }`
[INFO] [stdout] 1ec3e8fbc06e12cfc3078d0da0990b8fc4d5acb02cc2d8bd5c0c5a4b314d059c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3b1987dcc016f2d94b93fd9ff702610ff33837c49414eb320934e895745c91e
[INFO] running `Command { std: "docker" "start" "-a" "b3b1987dcc016f2d94b93fd9ff702610ff33837c49414eb320934e895745c91e", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.15.3
[INFO] [stderr]    Compiling tree_arena v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "b3b1987dcc016f2d94b93fd9ff702610ff33837c49414eb320934e895745c91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3b1987dcc016f2d94b93fd9ff702610ff33837c49414eb320934e895745c91e", kill_on_drop: false }`
[INFO] [stdout] b3b1987dcc016f2d94b93fd9ff702610ff33837c49414eb320934e895745c91e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd61b9acc927d3e6a982a6ee923af567fb8ee7c37b1c4634f84f42ecbf4d77af
[INFO] running `Command { std: "docker" "start" "-a" "fd61b9acc927d3e6a982a6ee923af567fb8ee7c37b1c4634f84f42ecbf4d77af", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree_arena v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "fd61b9acc927d3e6a982a6ee923af567fb8ee7c37b1c4634f84f42ecbf4d77af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd61b9acc927d3e6a982a6ee923af567fb8ee7c37b1c4634f84f42ecbf4d77af", kill_on_drop: false }`
[INFO] [stdout] fd61b9acc927d3e6a982a6ee923af567fb8ee7c37b1c4634f84f42ecbf4d77af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1ffb1a8786cf3be6d39f2b0a65688a7bd136af9ef60d8bb550de780bf2cdaf4f
[INFO] running `Command { std: "docker" "start" "-a" "1ffb1a8786cf3be6d39f2b0a65688a7bd136af9ef60d8bb550de780bf2cdaf4f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_arena-3adadcadb4581089)
[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] [stderr]      Running tests/basic_tests.rs (/opt/rustwide/target/debug/deps/basic_tests-a6c0de82f997987d)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test arena_insertions ... ok
[INFO] [stdout] test arena_mutate_parent_and_child_at_once ... ok
[INFO] [stdout] test arena_item_removal ... ok
[INFO] [stdout] test mem_swap ... ok
[INFO] [stdout] test arena_duplicate_insertion - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_arena
[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" "1ffb1a8786cf3be6d39f2b0a65688a7bd136af9ef60d8bb550de780bf2cdaf4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ffb1a8786cf3be6d39f2b0a65688a7bd136af9ef60d8bb550de780bf2cdaf4f", kill_on_drop: false }`
[INFO] [stdout] 1ffb1a8786cf3be6d39f2b0a65688a7bd136af9ef60d8bb550de780bf2cdaf4f