[INFO] fetching crate moving_gc_arena 0.3.3... [INFO] testing moving_gc_arena-0.3.3 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799 [INFO] extracting crate moving_gc_arena 0.3.3 into /workspace/builds/worker-116/source [INFO] validating manifest of crates.io crate moving_gc_arena 0.3.3 on toolchain 62efba8a050c64249dab942951bb28f710208bc8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate moving_gc_arena 0.3.3 [INFO] finished tweaking crates.io crate moving_gc_arena 0.3.3 [INFO] tweaked toml for crates.io crate moving_gc_arena 0.3.3 written to /workspace/builds/worker-116/source/Cargo.toml [INFO] crate crates.io crate moving_gc_arena 0.3.3 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bfb583d10e50734fa72ac1fb8cad0e0b2d8982484e4f8c3b1989cca5cc7b669b [INFO] running `Command { std: "docker" "start" "-a" "bfb583d10e50734fa72ac1fb8cad0e0b2d8982484e4f8c3b1989cca5cc7b669b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bfb583d10e50734fa72ac1fb8cad0e0b2d8982484e4f8c3b1989cca5cc7b669b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bfb583d10e50734fa72ac1fb8cad0e0b2d8982484e4f8c3b1989cca5cc7b669b", kill_on_drop: false }` [INFO] [stdout] bfb583d10e50734fa72ac1fb8cad0e0b2d8982484e4f8c3b1989cca5cc7b669b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e054886980fbc5b12f6155f25b254974cb8219c97b7de1041632a882ffad9e1e [INFO] running `Command { std: "docker" "start" "-a" "e054886980fbc5b12f6155f25b254974cb8219c97b7de1041632a882ffad9e1e", kill_on_drop: false }` [INFO] [stderr] Compiling moving_gc_arena v0.3.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/region/collect.rs:376:10 [INFO] [stdout] | [INFO] [stdout] 376 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.53s [INFO] running `Command { std: "docker" "inspect" "e054886980fbc5b12f6155f25b254974cb8219c97b7de1041632a882ffad9e1e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e054886980fbc5b12f6155f25b254974cb8219c97b7de1041632a882ffad9e1e", kill_on_drop: false }` [INFO] [stdout] e054886980fbc5b12f6155f25b254974cb8219c97b7de1041632a882ffad9e1e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c74802941b8eab1a6410d24185469e1fc6f6bb3e851e262d01e12d91019a1519 [INFO] running `Command { std: "docker" "start" "-a" "c74802941b8eab1a6410d24185469e1fc6f6bb3e851e262d01e12d91019a1519", kill_on_drop: false }` [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/region/collect.rs:376:10 [INFO] [stdout] | [INFO] [stdout] 376 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling moving_gc_arena v0.3.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/region/collect.rs:376:10 [INFO] [stdout] | [INFO] [stdout] 376 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:772:66 [INFO] [stdout] | [INFO] [stdout] 772 | let mut handle = |mut s: Entry| -> Option<(Entry)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 772 - let mut handle = |mut s: Entry| -> Option<(Entry)> { [INFO] [stdout] 772 + let mut handle = |mut s: Entry| -> Option> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:634:13 [INFO] [stdout] | [INFO] [stdout] 634 | let mut rt2 = rt1.clone(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:842:13 [INFO] [stdout] | [INFO] [stdout] 842 | let mut i = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.15s [INFO] running `Command { std: "docker" "inspect" "c74802941b8eab1a6410d24185469e1fc6f6bb3e851e262d01e12d91019a1519", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c74802941b8eab1a6410d24185469e1fc6f6bb3e851e262d01e12d91019a1519", kill_on_drop: false }` [INFO] [stdout] c74802941b8eab1a6410d24185469e1fc6f6bb3e851e262d01e12d91019a1519 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7838bd2f44a4f0b8eb787dab178d628427e4cbae4c06b637a9b23d49ce628c6e [INFO] running `Command { std: "docker" "start" "-a" "7838bd2f44a4f0b8eb787dab178d628427e4cbae4c06b637a9b23d49ce628c6e", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/region/collect.rs:376:10 [INFO] [stderr] | [INFO] [stderr] 376 | }; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `moving_gc_arena` (lib) generated 1 warning [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/lib.rs:772:66 [INFO] [stderr] | [INFO] [stderr] 772 | let mut handle = |mut s: Entry| -> Option<(Entry)> { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 772 - let mut handle = |mut s: Entry| -> Option<(Entry)> { [INFO] [stderr] 772 + let mut handle = |mut s: Entry| -> Option> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:634:13 [INFO] [stderr] | [INFO] [stderr] 634 | let mut rt2 = rt1.clone(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:842:13 [INFO] [stderr] | [INFO] [stderr] 842 | let mut i = 0; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: `moving_gc_arena` (lib test) generated 4 warnings (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/moving_gc_arena-c9bbf81f9c6cf652) [INFO] [stdout] [INFO] [stdout] running 20 tests [INFO] [stdout] test tests::check_impls ... ok [INFO] [stdout] test tests::deep_clone_into_with ... ok [INFO] [stdout] test tests::dfs_diamond ... ok [INFO] [stdout] test tests::deep_clone_sound ... ok [INFO] [stdout] test tests::entry_ix_weak_commute ... ok [INFO] [stdout] test tests::indirect_correct ... ok [INFO] [stdout] test tests::ix_to_root ... ok [INFO] [stdout] test tests::non_static_strategy ... ok [INFO] [stdout] test tests::print_external_references ... ok [INFO] [stdout] test tests::root_ix_roundtrip ... ok [INFO] [stdout] test tests::root_weak_roundtrip ... ok [INFO] [stdout] test tests::roots_are_root ... ok [INFO] [stdout] test tests::traverse_pre_post ... ok [INFO] [stdout] test tests::traverse_sound ... ok [INFO] [stdout] test tests::upgrades_well_behaved ... ok [INFO] [stdout] test tests::weak_to_root ... ok [INFO] [stdout] test tests::weak_ix_roundtrip ... ok [INFO] [stdout] test tests::weaks_are_weak ... ok [INFO] [stdout] test tests::invalid_ix_in_gc - should panic ... ok [INFO] [stdout] test tests::simple_strategy ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s [INFO] [stdout] [INFO] [stderr] Doc-tests moving_gc_arena [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> /opt/rustwide/workdir/src/region/collect.rs:376:10 [INFO] [stderr] | [INFO] [stderr] 376 | }; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/region/mod.rs - region::Region::gc (line 190) ... ok [INFO] [stdout] test src/region/mod.rs - region::Region::traverse_with (line 293) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "7838bd2f44a4f0b8eb787dab178d628427e4cbae4c06b637a9b23d49ce628c6e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7838bd2f44a4f0b8eb787dab178d628427e4cbae4c06b637a9b23d49ce628c6e", kill_on_drop: false }` [INFO] [stdout] 7838bd2f44a4f0b8eb787dab178d628427e4cbae4c06b637a9b23d49ce628c6e