[INFO] fetching crate nano_arena 0.5.2...
[INFO] testing nano_arena-0.5.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate nano_arena 0.5.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate nano_arena 0.5.2 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 nano_arena 0.5.2
[INFO] finished tweaking crates.io crate nano_arena 0.5.2
[INFO] tweaked toml for crates.io crate nano_arena 0.5.2 written to /workspace/builds/worker-3/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] [stderr]     Blocking waiting for file lock on package cache
[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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 38721d6a59388d6c1c730dcfb0593376285529f7ef4378085ce1beb1a61011ea
[INFO] running `Command { std: "docker" "start" "-a" "38721d6a59388d6c1c730dcfb0593376285529f7ef4378085ce1beb1a61011ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38721d6a59388d6c1c730dcfb0593376285529f7ef4378085ce1beb1a61011ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38721d6a59388d6c1c730dcfb0593376285529f7ef4378085ce1beb1a61011ea", kill_on_drop: false }`
[INFO] [stdout] 38721d6a59388d6c1c730dcfb0593376285529f7ef4378085ce1beb1a61011ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 67b0f8008784216ec21b42866c57cdecc7de95764c3da055518d3c9e36b616b3
[INFO] running `Command { std: "docker" "start" "-a" "67b0f8008784216ec21b42866c57cdecc7de95764c3da055518d3c9e36b616b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling nano_arena v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "67b0f8008784216ec21b42866c57cdecc7de95764c3da055518d3c9e36b616b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b0f8008784216ec21b42866c57cdecc7de95764c3da055518d3c9e36b616b3", kill_on_drop: false }`
[INFO] [stdout] 67b0f8008784216ec21b42866c57cdecc7de95764c3da055518d3c9e36b616b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 8b2993834317fcab07e51578edcff9c6ba4cfc9392cb2d42b0196084f0f4548f
[INFO] running `Command { std: "docker" "start" "-a" "8b2993834317fcab07e51578edcff9c6ba4cfc9392cb2d42b0196084f0f4548f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling nano_arena v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 21.11s
[INFO] running `Command { std: "docker" "inspect" "8b2993834317fcab07e51578edcff9c6ba4cfc9392cb2d42b0196084f0f4548f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b2993834317fcab07e51578edcff9c6ba4cfc9392cb2d42b0196084f0f4548f", kill_on_drop: false }`
[INFO] [stdout] 8b2993834317fcab07e51578edcff9c6ba4cfc9392cb2d42b0196084f0f4548f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 00ef169dbb3e64896d5d4821bf65973d44b9e992335acdee66448714cab16732
[INFO] running `Command { std: "docker" "start" "-a" "00ef169dbb3e64896d5d4821bf65973d44b9e992335acdee66448714cab16732", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stdout] running 24 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nano_arena-a8991338332bac8e)
[INFO] [stdout] test tests::apply_ordering ... ok
[INFO] [stderr]    Doc-tests nano_arena
[INFO] [stdout] test tests::get_mut ... ok
[INFO] [stdout] test tests::cloned_index_should_equal ... ok
[INFO] [stdout] test tests::alloc_with_idx ... ok
[INFO] [stdout] test tests::arena_length ... ok
[INFO] [stdout] test tests::getting_by_index ... ok
[INFO] [stdout] test tests::debug_printing ... ok
[INFO] [stdout] test tests::mut_iter ... ok
[INFO] [stdout] test tests::split_at ... ok
[INFO] [stdout] test tests::compare_should_work_for_idx ... ok
[INFO] [stdout] test tests::remove_should_remove_last_value ... ok
[INFO] [stdout] test tests::swap_remove ... ok
[INFO] [stdout] test tests::truncate ... ok
[INFO] [stdout] test tests::should_construct_with_capacity ... ok
[INFO] [stdout] test tests::swap_indexes ... ok
[INFO] [stdout] test tests::retain ... ok
[INFO] [stdout] test tests::index_should_be_hashable ... ok
[INFO] [stdout] test tests::convert_to_vec ... ok
[INFO] [stdout] test tests::position ... ok
[INFO] [stdout] test tests::splitting_should_be_safe ... ok
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::remove ... ok
[INFO] [stdout] test tests::should_construct_default ... ok
[INFO] [stdout] test tests::turn_iterator_into_vector ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[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" "00ef169dbb3e64896d5d4821bf65973d44b9e992335acdee66448714cab16732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00ef169dbb3e64896d5d4821bf65973d44b9e992335acdee66448714cab16732", kill_on_drop: false }`
[INFO] [stdout] 00ef169dbb3e64896d5d4821bf65973d44b9e992335acdee66448714cab16732