[INFO] fetching crate moving_gc_arena 0.3.3... [INFO] testing moving_gc_arena-0.3.3 against beta-2021-09-08 for beta-1.56-1 [INFO] extracting crate moving_gc_arena 0.3.3 into /workspace/builds/worker-52/source [INFO] validating manifest of crates.io crate moving_gc_arena 0.3.3 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 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-52/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" "+beta-2021-09-08" "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-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 0c8d2d3887e6995114808d2795310297a0973bba3aa5b0ffabb26ab698a65d44 [INFO] running `Command { std: "docker" "start" "-a" "0c8d2d3887e6995114808d2795310297a0973bba3aa5b0ffabb26ab698a65d44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0c8d2d3887e6995114808d2795310297a0973bba3aa5b0ffabb26ab698a65d44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c8d2d3887e6995114808d2795310297a0973bba3aa5b0ffabb26ab698a65d44", kill_on_drop: false }` [INFO] [stdout] 0c8d2d3887e6995114808d2795310297a0973bba3aa5b0ffabb26ab698a65d44 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] c8ad1f917e65df680647803ed2e53c1b7177769d031a791273aeb1a30a9786b8 [INFO] running `Command { std: "docker" "start" "-a" "c8ad1f917e65df680647803ed2e53c1b7177769d031a791273aeb1a30a9786b8", 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 0.56s [INFO] running `Command { std: "docker" "inspect" "c8ad1f917e65df680647803ed2e53c1b7177769d031a791273aeb1a30a9786b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8ad1f917e65df680647803ed2e53c1b7177769d031a791273aeb1a30a9786b8", kill_on_drop: false }` [INFO] [stdout] c8ad1f917e65df680647803ed2e53c1b7177769d031a791273aeb1a30a9786b8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 3f59dfe6b414531a5614b7d09d450f5309b6233c538cacf3f425e5cbb62b429d [INFO] running `Command { std: "docker" "start" "-a" "3f59dfe6b414531a5614b7d09d450f5309b6233c538cacf3f425e5cbb62b429d", 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] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [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 1.25s [INFO] running `Command { std: "docker" "inspect" "3f59dfe6b414531a5614b7d09d450f5309b6233c538cacf3f425e5cbb62b429d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f59dfe6b414531a5614b7d09d450f5309b6233c538cacf3f425e5cbb62b429d", kill_on_drop: false }` [INFO] [stdout] 3f59dfe6b414531a5614b7d09d450f5309b6233c538cacf3f425e5cbb62b429d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 7a5c42c1b1f2e11984abc7fe86c412919eba44bd28eb9bb45d369f99f0310ad9 [INFO] running `Command { std: "docker" "start" "-a" "7a5c42c1b1f2e11984abc7fe86c412919eba44bd28eb9bb45d369f99f0310ad9", 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] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [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 0.05s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/moving_gc_arena-b039130c8d0207b3) [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::upgrades_well_behaved ... ok [INFO] [stdout] test tests::traverse_sound ... ok [INFO] [stdout] test tests::weak_ix_roundtrip ... ok [INFO] [stdout] test tests::weak_to_root ... 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 0.26s [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 0.57s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "7a5c42c1b1f2e11984abc7fe86c412919eba44bd28eb9bb45d369f99f0310ad9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a5c42c1b1f2e11984abc7fe86c412919eba44bd28eb9bb45d369f99f0310ad9", kill_on_drop: false }` [INFO] [stdout] 7a5c42c1b1f2e11984abc7fe86c412919eba44bd28eb9bb45d369f99f0310ad9