[INFO] fetching crate stable-arena 0.2.0...
[INFO] testing stable-arena-0.2.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate stable-arena 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate stable-arena 0.2.0
[INFO] finished tweaking crates.io crate stable-arena 0.2.0
[INFO] tweaked toml for crates.io crate stable-arena 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stable-arena 0.2.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stable-arena 0.2.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cd85402da4e6aefa973c5718a1b6b29e992c0daff7eb84bd6db1d3ab4f91afd
[INFO] running `Command { std: "docker" "start" "-a" "1cd85402da4e6aefa973c5718a1b6b29e992c0daff7eb84bd6db1d3ab4f91afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cd85402da4e6aefa973c5718a1b6b29e992c0daff7eb84bd6db1d3ab4f91afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd85402da4e6aefa973c5718a1b6b29e992c0daff7eb84bd6db1d3ab4f91afd", kill_on_drop: false }`
[INFO] [stdout] 1cd85402da4e6aefa973c5718a1b6b29e992c0daff7eb84bd6db1d3ab4f91afd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c26bb2257f9b992767aca0a5cbd0ec63d60b785d614350aa3695f56435946b63
[INFO] running `Command { std: "docker" "start" "-a" "c26bb2257f9b992767aca0a5cbd0ec63d60b785d614350aa3695f56435946b63", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling stable-arena v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "c26bb2257f9b992767aca0a5cbd0ec63d60b785d614350aa3695f56435946b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c26bb2257f9b992767aca0a5cbd0ec63d60b785d614350aa3695f56435946b63", kill_on_drop: false }`
[INFO] [stdout] c26bb2257f9b992767aca0a5cbd0ec63d60b785d614350aa3695f56435946b63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 636ca2836e9d65eec4f26e3ab7507efc0b88e0f8b6224dffc09be7263c81671d
[INFO] running `Command { std: "docker" "start" "-a" "636ca2836e9d65eec4f26e3ab7507efc0b88e0f8b6224dffc09be7263c81671d", kill_on_drop: false }`
[INFO] [stderr]    Compiling stable-arena v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `declare_arena`
[INFO] [stdout]  --> src/tests.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::{DroplessArena, TypedArena, declare_arena};
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "636ca2836e9d65eec4f26e3ab7507efc0b88e0f8b6224dffc09be7263c81671d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "636ca2836e9d65eec4f26e3ab7507efc0b88e0f8b6224dffc09be7263c81671d", kill_on_drop: false }`
[INFO] [stdout] 636ca2836e9d65eec4f26e3ab7507efc0b88e0f8b6224dffc09be7263c81671d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee95d9c130709a8f1161a17bd645e2dbf5c7e5d466da988322f66cd5afefaf44
[INFO] running `Command { std: "docker" "start" "-a" "ee95d9c130709a8f1161a17bd645e2dbf5c7e5d466da988322f66cd5afefaf44", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `declare_arena`
[INFO] [stderr]  --> src/tests.rs:3:40
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::{DroplessArena, TypedArena, declare_arena};
[INFO] [stderr]   |                                        ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stable-arena` (lib test) generated 1 warning (run `cargo fix --lib -p stable-arena --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stable_arena-c6df779e8b7cf5d0)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test tests::test_cycle ... ok
[INFO] [stdout] test tests::test_unused ... ok
[INFO] [stdout] test tests::test_typed_arena_drop_on_clear ... ok
[INFO] [stdout] test tests::test_unused_dropless ... ok
[INFO] [stdout] test tests::test_typed_arena_drop_small_count ... ok
[INFO] [stdout] test tests::test_dropless_slice ... ok
[INFO] [stdout] test tests::test_dropless_str ... ok
[INFO] [stdout] test tests::test_dropless_with_reference ... ok
[INFO] [stdout] test tests::test_declare_arena ... ok
[INFO] [stdout] test tests::test_copy ... ok
[INFO] [stdout] test tests::test_typed_arena_drop_count ... ok
[INFO] [stdout] test tests::test_typed_arena_clear ... ok
[INFO] [stdout] test tests::test_typed_arena_zero_sized ... ok
[INFO] [stdout] test tests::test_arena_alloc_nested ... ok
[INFO] [stdout] test tests::test_noncopy ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stable_arena
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 47) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stdout] test src/lib.rs - declare_arena (line 691) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.48s; merged doctests compilation took 0.47s
[INFO] running `Command { std: "docker" "inspect" "ee95d9c130709a8f1161a17bd645e2dbf5c7e5d466da988322f66cd5afefaf44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee95d9c130709a8f1161a17bd645e2dbf5c7e5d466da988322f66cd5afefaf44", kill_on_drop: false }`
[INFO] [stdout] ee95d9c130709a8f1161a17bd645e2dbf5c7e5d466da988322f66cd5afefaf44