[INFO] fetching crate scanmut 0.2.0... [INFO] testing scanmut-0.2.0 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate scanmut 0.2.0 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate scanmut 0.2.0 [INFO] finished tweaking crates.io crate scanmut 0.2.0 [INFO] tweaked toml for crates.io crate scanmut 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate scanmut 0.2.0 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 92 packages to latest compatible versions [INFO] [stderr] Adding criterion v0.3.6 (available: v0.7.0) [INFO] [stderr] Adding proptest v0.10.1 (available: v1.9.0) [INFO] [stderr] Adding rand v0.7.3 (available: v0.9.2) [INFO] [stderr] Adding rand_pcg v0.2.1 (available: v0.9.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e1f58e00480bf239ab6637d1cf0cc489eb38cf80eb69026aed9fa58209249404 [INFO] running `Command { std: "docker" "start" "-a" "e1f58e00480bf239ab6637d1cf0cc489eb38cf80eb69026aed9fa58209249404", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e1f58e00480bf239ab6637d1cf0cc489eb38cf80eb69026aed9fa58209249404", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e1f58e00480bf239ab6637d1cf0cc489eb38cf80eb69026aed9fa58209249404", kill_on_drop: false }` [INFO] [stdout] e1f58e00480bf239ab6637d1cf0cc489eb38cf80eb69026aed9fa58209249404 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 84041edb1b0dbc42c0321aad94fe2c2cfcf3a9e0156f7e2e000048a66fcdedfa [INFO] running `Command { std: "docker" "start" "-a" "84041edb1b0dbc42c0321aad94fe2c2cfcf3a9e0156f7e2e000048a66fcdedfa", kill_on_drop: false }` [INFO] [stderr] Compiling scanmut v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "84041edb1b0dbc42c0321aad94fe2c2cfcf3a9e0156f7e2e000048a66fcdedfa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "84041edb1b0dbc42c0321aad94fe2c2cfcf3a9e0156f7e2e000048a66fcdedfa", kill_on_drop: false }` [INFO] [stdout] 84041edb1b0dbc42c0321aad94fe2c2cfcf3a9e0156f7e2e000048a66fcdedfa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 024295fc2c90a40cfea2135948d3d0192cb5bc8b17ffc17b2fccf1d9d8c618a2 [INFO] running `Command { std: "docker" "start" "-a" "024295fc2c90a40cfea2135948d3d0192cb5bc8b17ffc17b2fccf1d9d8c618a2", kill_on_drop: false }` [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling plotters-backend v0.3.7 [INFO] [stderr] Compiling regex-syntax v0.8.8 [INFO] [stderr] Compiling csv-core v0.1.13 [INFO] [stderr] Compiling wait-timeout v0.2.1 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling tempfile v3.23.0 [INFO] [stderr] Compiling half v1.8.3 [INFO] [stderr] Compiling cast v0.3.0 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling syn v2.0.108 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling rand_xorshift v0.2.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling byteorder v1.5.0 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Compiling oorandom v11.1.5 [INFO] [stderr] Compiling rand_pcg v0.2.1 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling criterion-plot v0.4.5 [INFO] [stderr] Compiling plotters-svg v0.3.7 [INFO] [stderr] Compiling plotters v0.3.7 [INFO] [stderr] Compiling bit-set v0.5.3 [INFO] [stderr] Compiling rusty-fork v0.3.1 [INFO] [stderr] Compiling regex-automata v0.4.13 [INFO] [stderr] Compiling proptest v0.10.1 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling csv v1.4.0 [INFO] [stderr] Compiling serde_cbor v0.11.2 [INFO] [stderr] Compiling tinytemplate v1.2.1 [INFO] [stderr] Compiling regex v1.12.2 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling criterion v0.3.6 [INFO] [stderr] Compiling scanmut v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: missing documentation for a module [INFO] [stdout] --> src/lib.rs:47:1 [INFO] [stdout] | [INFO] [stdout] 47 | pub mod proputils; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:36:40 [INFO] [stdout] | [INFO] [stdout] 36 | #![deny(missing_debug_implementations, missing_docs)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/inserter.rs:356:21 [INFO] [stdout] | [INFO] [stdout] 356 | fn new(vec: &mut Vec, additional: usize) -> NaiveInserter { [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 356 | fn new(vec: &mut Vec, additional: usize) -> NaiveInserter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/remover.rs:283:9 [INFO] [stdout] | [INFO] [stdout] 283 | drop(Remover::new(&mut vec![1, 2]).move_to(3)); [INFO] [stdout] | ^^^^^----------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `()` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 283 - drop(Remover::new(&mut vec![1, 2]).move_to(3)); [INFO] [stdout] 283 + let _ = Remover::new(&mut vec![1, 2]).move_to(3); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/remover.rs:329:21 [INFO] [stdout] | [INFO] [stdout] 329 | fn new(vec: &mut Vec) -> NaiveRemover { [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 329 | fn new(vec: &mut Vec) -> NaiveRemover<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 29.77s [INFO] running `Command { std: "docker" "inspect" "024295fc2c90a40cfea2135948d3d0192cb5bc8b17ffc17b2fccf1d9d8c618a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "024295fc2c90a40cfea2135948d3d0192cb5bc8b17ffc17b2fccf1d9d8c618a2", kill_on_drop: false }` [INFO] [stdout] 024295fc2c90a40cfea2135948d3d0192cb5bc8b17ffc17b2fccf1d9d8c618a2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8658a513d75fbc267ecc38467226d16c5307c794787777f75a9293bd430abe67 [INFO] running `Command { std: "docker" "start" "-a" "8658a513d75fbc267ecc38467226d16c5307c794787777f75a9293bd430abe67", kill_on_drop: false }` [INFO] [stderr] warning: missing documentation for a module [INFO] [stderr] --> src/lib.rs:47:1 [INFO] [stderr] | [INFO] [stderr] 47 | pub mod proputils; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: the lint level is defined here [INFO] [stderr] --> src/lib.rs:36:40 [INFO] [stderr] | [INFO] [stderr] 36 | #![deny(missing_debug_implementations, missing_docs)] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/inserter.rs:356:21 [INFO] [stderr] | [INFO] [stderr] 356 | fn new(vec: &mut Vec, additional: usize) -> NaiveInserter { [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 356 | fn new(vec: &mut Vec, additional: usize) -> NaiveInserter<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stderr] --> src/remover.rs:283:9 [INFO] [stderr] | [INFO] [stderr] 283 | drop(Remover::new(&mut vec![1, 2]).move_to(3)); [INFO] [stderr] | ^^^^^----------------------------------------^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `()` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 283 - drop(Remover::new(&mut vec![1, 2]).move_to(3)); [INFO] [stderr] 283 + let _ = Remover::new(&mut vec![1, 2]).move_to(3); [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/remover.rs:329:21 [INFO] [stderr] | [INFO] [stderr] 329 | fn new(vec: &mut Vec) -> NaiveRemover { [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 329 | fn new(vec: &mut Vec) -> NaiveRemover<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `scanmut` (lib test) generated 4 warnings (run `cargo fix --lib -p scanmut --tests` to apply 2 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/scanmut-a551491004d8ccba) [INFO] [stdout] [INFO] [stdout] running 37 tests [INFO] [stdout] test inserter::tests::inserter_empty ... ok [INFO] [stdout] test inserter::tests::inserter_max_index ... ok [INFO] [stdout] test inserter::tests::inserter_single_post ... ok [INFO] [stdout] test inserter::tests::inserter_threes ... ok [INFO] [stdout] test inserter::tests::inserter_threes_additional_cap ... ok [INFO] [stdout] test remover::tests::remover_advance_one_past ... ok [INFO] [stdout] test remover::tests::remover_empty ... ok [INFO] [stdout] test remover::tests::remover_single ... ok [INFO] [stdout] test remover::tests::remover_two_both ... ok [INFO] [stdout] test remover::tests::remover_two_second ... ok [INFO] [stdout] test tests::insert_all ... ok [INFO] [stdout] test tests::insert_all_rev ... ok [INFO] [stdout] test remover::tests::remover_index ... ok [INFO] [stdout] test tests::insert_slice_clone ... ok [INFO] [stdout] test tests::insert_all_rev_end ... ok [INFO] [stdout] test tests::insert_slice_copy ... ok [INFO] [stdout] test tests::multimutate_multiple_insert ... ok [INFO] [stdout] test tests::multimutate_single_insert ... ok [INFO] [stdout] test tests::multimutate_single_insert_mid ... ok [INFO] [stdout] test tests::multimutate_single_insert_post ... ok [INFO] [stdout] test tests::multimutate_single_insert_pre ... ok [INFO] [stdout] test tests::multimutate_single_insert_zero_sized ... ok [INFO] [stdout] test inserter::tests::inserter_single_pre ... ok [INFO] [stdout] test inserter::tests::inserter_slices ... ok [INFO] [stdout] test remover::tests::remover_two_first ... ok [INFO] [stdout] test tests::insert_all_end ... ok [INFO] [stdout] test remover::tests::remover_slices ... ok [INFO] [stdout] test inserter::tests::inserter_out_of_order - should panic ... ok [INFO] [stdout] test remover::tests::remover_advance_out_of_bounds - should panic ... ok [INFO] [stdout] test tests::multimutate_remove - should panic ... ok [INFO] [stdout] test tests::multimutate_single_insert_zero_sized_out_of_bounds - should panic ... ok [INFO] [stdout] test tests::multimutate_single_insert_out_of_bounds - should panic ... ok [INFO] [stdout] test remover::tests::remover_out_of_bounds - should panic ... ok [INFO] [stdout] test remover::tests::remover_two_out_of_order - should panic ... ok [INFO] [stdout] test inserter::tests::inserter_oob - should panic ... ok [INFO] [stdout] test remover::tests::equals_naive_remover ... ok [INFO] [stdout] test inserter::tests::equals_naive_inserter ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 10.45s [INFO] [stdout] [INFO] [stderr] Doc-tests scanmut [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test src/lib.rs - (line 18) ... ok [INFO] [stdout] test src/lib.rs - ScanMut::multi_remove (line 94) ... ok [INFO] [stdout] test src/inserter.rs - inserter::Inserter (line 20) ... ok [INFO] [stdout] test src/lib.rs - ScanMut::multi_insert (line 67) ... ok [INFO] [stdout] test src/lib.rs - (line 28) ... ok [INFO] [stdout] test src/inserter.rs - inserter::Inserter (line 40) ... ok [INFO] [stdout] test src/remover.rs - remover::Remover (line 20) ... ok [INFO] [stdout] test src/remover.rs - remover::Remover (line 45) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8658a513d75fbc267ecc38467226d16c5307c794787777f75a9293bd430abe67", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8658a513d75fbc267ecc38467226d16c5307c794787777f75a9293bd430abe67", kill_on_drop: false }` [INFO] [stdout] 8658a513d75fbc267ecc38467226d16c5307c794787777f75a9293bd430abe67