[INFO] fetching crate minicore 0.0.1... [INFO] testing minicore-0.0.1 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate minicore 0.0.1 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate minicore 0.0.1 [INFO] finished tweaking crates.io crate minicore 0.0.1 [INFO] tweaked toml for crates.io crate minicore 0.0.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate minicore 0.0.1 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 39 packages to latest compatible versions [INFO] [stderr] Adding thiserror v1.0.69 (available: v2.0.17) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] af3c2c6b489d6fe1d6a4fdbcab566fa5f187c327bbed36ba96ed14b04aeb386a [INFO] running `Command { std: "docker" "start" "-a" "af3c2c6b489d6fe1d6a4fdbcab566fa5f187c327bbed36ba96ed14b04aeb386a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "af3c2c6b489d6fe1d6a4fdbcab566fa5f187c327bbed36ba96ed14b04aeb386a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "af3c2c6b489d6fe1d6a4fdbcab566fa5f187c327bbed36ba96ed14b04aeb386a", kill_on_drop: false }` [INFO] [stdout] af3c2c6b489d6fe1d6a4fdbcab566fa5f187c327bbed36ba96ed14b04aeb386a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7f6a006adc690a6100cd34fdf682b2ebc378fd344e541d725c10dc8f39acf346 [INFO] running `Command { std: "docker" "start" "-a" "7f6a006adc690a6100cd34fdf682b2ebc378fd344e541d725c10dc8f39acf346", kill_on_drop: false }` [INFO] [stderr] Compiling tracing v0.1.41 [INFO] [stderr] Compiling minicore v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: useless assignment of variable of type `usize` to itself [INFO] [stdout] --> src/ubytes/mod.rs:436:9 [INFO] [stdout] | [INFO] [stdout] 436 | until_pos = until_pos; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/mem/memory.rs:312:21 [INFO] [stdout] | [INFO] [stdout] 312 | pub fn drain(&mut self, range: R) -> Drain [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] 312 | pub fn drain(&mut self, range: R) -> Drain<'_, T> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/mem/primitives.rs:110:22 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn opt_slice(&self, range: Option) -> Option { [INFO] [stdout] | ^^^^^ the lifetime is elided here ^^^^^ the same lifetime is hidden 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] 110 | pub fn opt_slice(&self, range: Option) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s [INFO] running `Command { std: "docker" "inspect" "7f6a006adc690a6100cd34fdf682b2ebc378fd344e541d725c10dc8f39acf346", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f6a006adc690a6100cd34fdf682b2ebc378fd344e541d725c10dc8f39acf346", kill_on_drop: false }` [INFO] [stdout] 7f6a006adc690a6100cd34fdf682b2ebc378fd344e541d725c10dc8f39acf346 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 08b68ff14ee7efdc0d29acf96b7b36686a039e701d7b9b13546addaf4865d49c [INFO] running `Command { std: "docker" "start" "-a" "08b68ff14ee7efdc0d29acf96b7b36686a039e701d7b9b13546addaf4865d49c", kill_on_drop: false }` [INFO] [stderr] Compiling tracing-test-macro v0.2.5 [INFO] [stderr] Compiling minicore v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: useless assignment of variable of type `usize` to itself [INFO] [stdout] --> src/ubytes/mod.rs:436:9 [INFO] [stdout] | [INFO] [stdout] 436 | until_pos = until_pos; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/mem/memory.rs:312:21 [INFO] [stdout] | [INFO] [stdout] 312 | pub fn drain(&mut self, range: R) -> Drain [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] 312 | pub fn drain(&mut self, range: R) -> Drain<'_, T> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/mem/primitives.rs:110:22 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn opt_slice(&self, range: Option) -> Option { [INFO] [stdout] | ^^^^^ the lifetime is elided here ^^^^^ the same lifetime is hidden 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] 110 | pub fn opt_slice(&self, range: Option) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tracing-test v0.2.5 [INFO] [stdout] warning: useless assignment of variable of type `usize` to itself [INFO] [stdout] --> src/ubytes/mod.rs:436:9 [INFO] [stdout] | [INFO] [stdout] 436 | until_pos = until_pos; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/mem/memory.rs:312:21 [INFO] [stdout] | [INFO] [stdout] 312 | pub fn drain(&mut self, range: R) -> Drain [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] 312 | pub fn drain(&mut self, range: R) -> Drain<'_, T> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/mem/primitives.rs:110:22 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn opt_slice(&self, range: Option) -> Option { [INFO] [stdout] | ^^^^^ the lifetime is elided here ^^^^^ the same lifetime is hidden 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] 110 | pub fn opt_slice(&self, range: Option) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.93s [INFO] running `Command { std: "docker" "inspect" "08b68ff14ee7efdc0d29acf96b7b36686a039e701d7b9b13546addaf4865d49c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "08b68ff14ee7efdc0d29acf96b7b36686a039e701d7b9b13546addaf4865d49c", kill_on_drop: false }` [INFO] [stdout] 08b68ff14ee7efdc0d29acf96b7b36686a039e701d7b9b13546addaf4865d49c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1f1b0b7eb6385f37a3ac69340a97d98193ec66737b4122fbfab677ea8491dfcc [INFO] running `Command { std: "docker" "start" "-a" "1f1b0b7eb6385f37a3ac69340a97d98193ec66737b4122fbfab677ea8491dfcc", kill_on_drop: false }` [INFO] [stderr] warning: useless assignment of variable of type `usize` to itself [INFO] [stderr] --> src/ubytes/mod.rs:436:9 [INFO] [stderr] | [INFO] [stderr] 436 | until_pos = until_pos; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/mem/memory.rs:312:21 [INFO] [stderr] | [INFO] [stderr] 312 | pub fn drain(&mut self, range: R) -> Drain [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] 312 | pub fn drain(&mut self, range: R) -> Drain<'_, T> [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/mem/primitives.rs:110:22 [INFO] [stderr] | [INFO] [stderr] 110 | pub fn opt_slice(&self, range: Option) -> Option { [INFO] [stderr] | ^^^^^ the lifetime is elided here ^^^^^ the same lifetime is hidden 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] 110 | pub fn opt_slice(&self, range: Option) -> Option> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `minicore` (lib) generated 3 warnings (run `cargo fix --lib -p minicore` to apply 2 suggestions) [INFO] [stderr] warning: `minicore` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/minicore-5a64c4110bcd5694) [INFO] [stdout] [INFO] [stdout] running 19 tests [INFO] [stdout] test mem::accumulator::accumulator_tests::test_can_peek_next_and_take_text_then_continue_peeking ... ok [INFO] [stdout] test mem::accumulator::accumulator_tests::test_can_use_accumulator_to_peek_next_character ... ok [INFO] [stdout] test mem::accumulator::accumulator_tests::test_can_virtual_peek_ahead_without_changing_peek_cursor ... ok [INFO] [stdout] test mem::accumulator::accumulator_tests::test_can_peek_next_to_accumulate_more_seen_text ... ok [INFO] [stdout] test mem::accumulator::accumulator_tests::test_can_use_accumulator_to_peek_two_characters_away ... ok [INFO] [stdout] test mem::memory::arena_pool_tests::test_arena_pool ... ok [INFO] [stdout] test mem::memory::arena_pool_tests::test_arena_pool_limits ... ok [INFO] [stdout] test mem::memory::arena_tests::can_create_arena ... ok [INFO] [stdout] test mem::memory::memory_limiter_tests::cant_expand_usage_pass_limits ... ok [INFO] [stdout] test mem::memory::type_area_tests::current_usage ... ok [INFO] [stdout] test mem::memory::memory_limiter_tests::can_get_current_usage ... ok [INFO] [stdout] test mem::memory::type_area_tests::drain ... ok [INFO] [stdout] test mem::memory::type_area_tests::drop ... ok [INFO] [stdout] test ubytes::accumulator_tests::test_can_peek_next_and_take_text_then_continue_peeking ... ok [INFO] [stdout] test ubytes::accumulator_tests::test_can_peek_next_to_accumulate_more_seen_text ... ok [INFO] [stdout] test ubytes::accumulator_tests::test_can_use_accumulator_to_peek_next_character ... ok [INFO] [stdout] test ubytes::accumulator_tests::test_can_virtual_peek_ahead_without_changing_peek_cursor ... ok [INFO] [stdout] test ubytes::accumulator_tests::test_can_use_accumulator_to_peek_two_characters_away ... ok [INFO] [stdout] test mem::memory::type_area_tests::max_limit ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests minicore [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" "1f1b0b7eb6385f37a3ac69340a97d98193ec66737b4122fbfab677ea8491dfcc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f1b0b7eb6385f37a3ac69340a97d98193ec66737b4122fbfab677ea8491dfcc", kill_on_drop: false }` [INFO] [stdout] 1f1b0b7eb6385f37a3ac69340a97d98193ec66737b4122fbfab677ea8491dfcc