[INFO] fetching crate nano_arena 0.5.2...
[INFO] testing nano_arena-0.5.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate nano_arena 0.5.2 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate nano_arena 0.5.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-90/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b78c0d0954d1b483ef8398ec95cc230d97efed2dbf8ac2152530e24ffc2379e
[INFO] running `Command { std: "docker" "start" "-a" "6b78c0d0954d1b483ef8398ec95cc230d97efed2dbf8ac2152530e24ffc2379e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b78c0d0954d1b483ef8398ec95cc230d97efed2dbf8ac2152530e24ffc2379e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b78c0d0954d1b483ef8398ec95cc230d97efed2dbf8ac2152530e24ffc2379e", kill_on_drop: false }`
[INFO] [stdout] 6b78c0d0954d1b483ef8398ec95cc230d97efed2dbf8ac2152530e24ffc2379e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 677d06b3ee0489f69458f01190aea1c57ecae1a73f55acc7c9096066f4ee43df
[INFO] running `Command { std: "docker" "start" "-a" "677d06b3ee0489f69458f01190aea1c57ecae1a73f55acc7c9096066f4ee43df", kill_on_drop: false }`
[INFO] [stderr]    Compiling nano_arena v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "677d06b3ee0489f69458f01190aea1c57ecae1a73f55acc7c9096066f4ee43df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "677d06b3ee0489f69458f01190aea1c57ecae1a73f55acc7c9096066f4ee43df", kill_on_drop: false }`
[INFO] [stdout] 677d06b3ee0489f69458f01190aea1c57ecae1a73f55acc7c9096066f4ee43df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c109bad422b6473b91b77d584b6c204ea1a5c0e898084c94b7e0cad9677ae77
[INFO] running `Command { std: "docker" "start" "-a" "7c109bad422b6473b91b77d584b6c204ea1a5c0e898084c94b7e0cad9677ae77", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling semver v1.0.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling serde_derive v1.0.136
[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 46.14s
[INFO] running `Command { std: "docker" "inspect" "7c109bad422b6473b91b77d584b6c204ea1a5c0e898084c94b7e0cad9677ae77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c109bad422b6473b91b77d584b6c204ea1a5c0e898084c94b7e0cad9677ae77", kill_on_drop: false }`
[INFO] [stdout] 7c109bad422b6473b91b77d584b6c204ea1a5c0e898084c94b7e0cad9677ae77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0a96535b2f2d8d5a19c90995244b97e1990870fbb3c9dabcffc6696e856607eb
[INFO] running `Command { std: "docker" "start" "-a" "0a96535b2f2d8d5a19c90995244b97e1990870fbb3c9dabcffc6696e856607eb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nano_arena-ea0ccd586b16f686)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test tests::alloc_with_idx ... ok
[INFO] [stdout] test tests::arena_length ... ok
[INFO] [stdout] test tests::compare_should_work_for_idx ... ok
[INFO] [stdout] test tests::cloned_index_should_equal ... ok
[INFO] [stdout] test tests::apply_ordering ... ok
[INFO] [stdout] test tests::getting_by_index ... ok
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::convert_to_vec ... ok
[INFO] [stdout] test tests::mut_iter ... ok
[INFO] [stdout] test tests::debug_printing ... ok
[INFO] [stdout] test tests::index_should_be_hashable ... ok
[INFO] [stdout] test tests::get_mut ... ok
[INFO] [stdout] test tests::retain ... ok
[INFO] [stdout] test tests::truncate ... ok
[INFO] [stdout] test tests::remove ... ok
[INFO] [stdout] test tests::position ... ok
[INFO] [stdout] test tests::swap_remove ... ok
[INFO] [stdout] test tests::remove_should_remove_last_value ... ok
[INFO] [stdout] test tests::should_construct_with_capacity ... ok
[INFO] [stdout] test tests::split_at ... ok
[INFO] [stdout] test tests::should_construct_default ... ok
[INFO] [stdout] test tests::splitting_should_be_safe ... ok
[INFO] [stdout] test tests::turn_iterator_into_vector ... ok
[INFO] [stdout] test tests::swap_indexes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nano_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" "0a96535b2f2d8d5a19c90995244b97e1990870fbb3c9dabcffc6696e856607eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a96535b2f2d8d5a19c90995244b97e1990870fbb3c9dabcffc6696e856607eb", kill_on_drop: false }`
[INFO] [stdout] 0a96535b2f2d8d5a19c90995244b97e1990870fbb3c9dabcffc6696e856607eb