[INFO] fetching crate conquer-once 0.4.0... [INFO] testing conquer-once-0.4.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate conquer-once 0.4.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate conquer-once 0.4.0 [INFO] finished tweaking crates.io crate conquer-once 0.4.0 [INFO] tweaked toml for crates.io crate conquer-once 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate conquer-once 0.4.0 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 1 package to latest compatible version [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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6807b4b3ac2e100d7547dd23d101139b7f4f5f3708b1f7d3dc9d761da2cc7e75 [INFO] running `Command { std: "docker" "start" "-a" "6807b4b3ac2e100d7547dd23d101139b7f4f5f3708b1f7d3dc9d761da2cc7e75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6807b4b3ac2e100d7547dd23d101139b7f4f5f3708b1f7d3dc9d761da2cc7e75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6807b4b3ac2e100d7547dd23d101139b7f4f5f3708b1f7d3dc9d761da2cc7e75", kill_on_drop: false }` [INFO] [stdout] 6807b4b3ac2e100d7547dd23d101139b7f4f5f3708b1f7d3dc9d761da2cc7e75 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 03287cf108e809ec46290ff40ffbbcbc99e1383af6118d22d3c1c7857ce08939 [INFO] running `Command { std: "docker" "start" "-a" "03287cf108e809ec46290ff40ffbbcbc99e1383af6118d22d3c1c7857ce08939", kill_on_drop: false }` [INFO] [stderr] Compiling conquer-util v0.3.0 [INFO] [stderr] Compiling conquer-once v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/state.rs:172:16 [INFO] [stdout] | [INFO] [stdout] 172 | WouldBlock(BlockedState), [INFO] [stdout] | ---------- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 172 - WouldBlock(BlockedState), [INFO] [stdout] 172 + WouldBlock(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `Command { std: "docker" "inspect" "03287cf108e809ec46290ff40ffbbcbc99e1383af6118d22d3c1c7857ce08939", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03287cf108e809ec46290ff40ffbbcbc99e1383af6118d22d3c1c7857ce08939", kill_on_drop: false }` [INFO] [stdout] 03287cf108e809ec46290ff40ffbbcbc99e1383af6118d22d3c1c7857ce08939 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 76e62e23ee3dd4d2af0cdccb17623e2dc04a90f2b981914177200e6dbc49c378 [INFO] running `Command { std: "docker" "start" "-a" "76e62e23ee3dd4d2af0cdccb17623e2dc04a90f2b981914177200e6dbc49c378", kill_on_drop: false }` [INFO] [stderr] Compiling conquer-once v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/state.rs:172:16 [INFO] [stdout] | [INFO] [stdout] 172 | WouldBlock(BlockedState), [INFO] [stdout] | ---------- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 172 - WouldBlock(BlockedState), [INFO] [stdout] 172 + WouldBlock(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/state.rs:172:16 [INFO] [stdout] | [INFO] [stdout] 172 | WouldBlock(BlockedState), [INFO] [stdout] | ---------- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 172 - WouldBlock(BlockedState), [INFO] [stdout] 172 + WouldBlock(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.46s [INFO] running `Command { std: "docker" "inspect" "76e62e23ee3dd4d2af0cdccb17623e2dc04a90f2b981914177200e6dbc49c378", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76e62e23ee3dd4d2af0cdccb17623e2dc04a90f2b981914177200e6dbc49c378", kill_on_drop: false }` [INFO] [stdout] 76e62e23ee3dd4d2af0cdccb17623e2dc04a90f2b981914177200e6dbc49c378 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d58b8cca8c54cd533bf863db6522c0ce4c5b2df8ec63424054e853c040daeac7 [INFO] running `Command { std: "docker" "start" "-a" "d58b8cca8c54cd533bf863db6522c0ce4c5b2df8ec63424054e853c040daeac7", kill_on_drop: false }` [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/state.rs:172:16 [INFO] [stderr] | [INFO] [stderr] 172 | WouldBlock(BlockedState), [INFO] [stderr] | ---------- ^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 172 - WouldBlock(BlockedState), [INFO] [stderr] 172 + WouldBlock(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `conquer-once` (lib) generated 1 warning [INFO] [stderr] warning: `conquer-once` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stdout] [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/conquer_once-8c4387817fa9bfc3) [INFO] [stdout] running 36 tests [INFO] [stdout] test noblock::tests::once_cell_uninit ... ok [INFO] [stdout] test noblock::tests::recursive ... ok [INFO] [stdout] test park::tests::lazy_mutex ... ok [INFO] [stdout] test park::tests::lazy ... ok [INFO] [stdout] test park::tests::once_cell_drop ... ok [INFO] [stdout] test park::tests::once_cell_init_once ... ok [INFO] [stdout] test park::tests::once_cell_into_inner ... ok [INFO] [stdout] test park::tests::once_cell_new ... ok [INFO] [stdout] test park::tests::once_cell_block ... ok [INFO] [stdout] test noblock::tests::once_cell_try_init_and_try_get ... ok [INFO] [stdout] test noblock::tests::once_cell_try_init_once ... ok [INFO] [stdout] test park::tests::once_cell_try_init_once ... ok [INFO] [stdout] test park::tests::once_cell_uninit ... ok [INFO] [stdout] test park::tests::recursive ... ok [INFO] [stdout] test park::tests::drop_on_panic - should panic ... ok [INFO] [stdout] test spin::tests::lazy ... ok [INFO] [stdout] test spin::tests::lazy_mutex ... ok [INFO] [stdout] test park::tests::catch_panic ... ok [INFO] [stdout] test park::tests::lazy_poisoned ... ok [INFO] [stdout] test spin::tests::once_cell_drop ... ok [INFO] [stdout] test park::tests::once_cell_into_inner_poisoned - should panic ... ok [INFO] [stdout] test spin::tests::drop_on_panic - should panic ... ok [INFO] [stdout] test spin::tests::catch_panic ... ok [INFO] [stdout] test park::tests::once_cell_propagate_poison_from_block - should panic ... ok [INFO] [stdout] test spin::tests::once_cell_init_once ... ok [INFO] [stdout] test park::tests::once_cell_try_init_and_try_get ... ok [INFO] [stdout] test spin::tests::once_cell_into_inner_poisoned - should panic ... ok [INFO] [stdout] test spin::tests::lazy_poisoned ... ok [INFO] [stdout] test spin::tests::once_cell_block ... ok [INFO] [stdout] test spin::tests::once_cell_uninit ... ok [INFO] [stdout] test spin::tests::recursive ... ok [INFO] [stdout] test spin::tests::once_cell_new ... ok [INFO] [stdout] test spin::tests::once_cell_into_inner ... ok [INFO] [stdout] test spin::tests::once_cell_try_init_once ... ok [INFO] [stderr] Doc-tests conquer_once [INFO] [stdout] test spin::tests::once_cell_try_init_and_try_get ... ok [INFO] [stdout] test spin::tests::once_cell_propagate_poison_from_block - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 10 tests [INFO] [stdout] test src/lazy.rs - lazy::Lazy::new (line 26) ... ok [INFO] [stdout] test src/cell.rs - cell::OnceCell::into_inner (line 96) ... ok [INFO] [stdout] test src/cell.rs - cell::OnceCell::get (line 380) ... ok [INFO] [stdout] test src/cell.rs - cell::OnceCell::init_once (line 431) ... ok [INFO] [stdout] test src/park.rs - park::Once (line 132) ... ok [INFO] [stdout] test src/park.rs - park::Lazy (line 54) ... ok [INFO] [stdout] test src/park.rs - park::OnceCell (line 88) ... ok [INFO] [stdout] test src/cell.rs - cell::OnceCell::try_init_once (line 267) ... ok [INFO] [stdout] test src/cell.rs - cell::OnceCell::get_unchecked (line 183) ... ok [INFO] [stdout] test src/park.rs - park::Lazy (line 32) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.85s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d58b8cca8c54cd533bf863db6522c0ce4c5b2df8ec63424054e853c040daeac7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d58b8cca8c54cd533bf863db6522c0ce4c5b2df8ec63424054e853c040daeac7", kill_on_drop: false }` [INFO] [stdout] d58b8cca8c54cd533bf863db6522c0ce4c5b2df8ec63424054e853c040daeac7