[INFO] fetching crate optempty 0.1.13... [INFO] testing optempty-0.1.13 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate optempty 0.1.13 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate optempty 0.1.13 [INFO] finished tweaking crates.io crate optempty 0.1.13 [INFO] tweaked toml for crates.io crate optempty 0.1.13 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate optempty 0.1.13 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 12 packages to latest compatible versions [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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e5c803ce077c7be1f14ab3ed83afada09af44f976f56c3ee810b47b8d99f9651 [INFO] running `Command { std: "docker" "start" "-a" "e5c803ce077c7be1f14ab3ed83afada09af44f976f56c3ee810b47b8d99f9651", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5c803ce077c7be1f14ab3ed83afada09af44f976f56c3ee810b47b8d99f9651", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5c803ce077c7be1f14ab3ed83afada09af44f976f56c3ee810b47b8d99f9651", kill_on_drop: false }` [INFO] [stdout] e5c803ce077c7be1f14ab3ed83afada09af44f976f56c3ee810b47b8d99f9651 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 31ecb42865e4478234fb72cd04d1fe339abbd15d17ff33cae51a2c4838de4ecd [INFO] running `Command { std: "docker" "start" "-a" "31ecb42865e4478234fb72cd04d1fe339abbd15d17ff33cae51a2c4838de4ecd", kill_on_drop: false }` [INFO] [stderr] Compiling optempty v0.1.13 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `use_std` [INFO] [stdout] --> src/lib.rs:97:17 [INFO] [stdout] | [INFO] [stdout] 97 | #![cfg_attr(not(feature = "use_std"), no_std)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `query_map`, `querymap`, `serde_json`, `serdejson`, and `std` [INFO] [stdout] = help: consider adding `use_std` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::no_std::*` [INFO] [stdout] --> src/is_empty/mod.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | pub use self::no_std::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::std::*` [INFO] [stdout] --> src/is_empty/mod.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | pub use self::std::*; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s [INFO] running `Command { std: "docker" "inspect" "31ecb42865e4478234fb72cd04d1fe339abbd15d17ff33cae51a2c4838de4ecd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31ecb42865e4478234fb72cd04d1fe339abbd15d17ff33cae51a2c4838de4ecd", kill_on_drop: false }` [INFO] [stdout] 31ecb42865e4478234fb72cd04d1fe339abbd15d17ff33cae51a2c4838de4ecd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 062c561c4d5253cad552046fe4db0e797a7beea52a8628588055ee43d48368d8 [INFO] running `Command { std: "docker" "start" "-a" "062c561c4d5253cad552046fe4db0e797a7beea52a8628588055ee43d48368d8", kill_on_drop: false }` [INFO] [stdout] warning: unexpected `cfg` condition value: `use_std` [INFO] [stdout] --> src/lib.rs:97:17 [INFO] [stdout] | [INFO] [stdout] 97 | #![cfg_attr(not(feature = "use_std"), no_std)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `query_map`, `querymap`, `serde_json`, `serdejson`, and `std` [INFO] [stdout] = help: consider adding `use_std` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::no_std::*` [INFO] [stdout] --> src/is_empty/mod.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | pub use self::no_std::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::std::*` [INFO] [stdout] --> src/is_empty/mod.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | pub use self::std::*; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling optempty v0.1.13 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `use_std` [INFO] [stdout] --> src/lib.rs:97:17 [INFO] [stdout] | [INFO] [stdout] 97 | #![cfg_attr(not(feature = "use_std"), no_std)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `query_map`, `querymap`, `serde_json`, `serdejson`, and `std` [INFO] [stdout] = help: consider adding `use_std` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::no_std::*` [INFO] [stdout] --> src/is_empty/mod.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | pub use self::no_std::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::std::*` [INFO] [stdout] --> src/is_empty/mod.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | pub use self::std::*; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.43s [INFO] running `Command { std: "docker" "inspect" "062c561c4d5253cad552046fe4db0e797a7beea52a8628588055ee43d48368d8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "062c561c4d5253cad552046fe4db0e797a7beea52a8628588055ee43d48368d8", kill_on_drop: false }` [INFO] [stdout] 062c561c4d5253cad552046fe4db0e797a7beea52a8628588055ee43d48368d8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2983ecb8618b28dba0d377356e1e9ee5659b0cf3b68ba8161203288a6c100c20 [INFO] running `Command { std: "docker" "start" "-a" "2983ecb8618b28dba0d377356e1e9ee5659b0cf3b68ba8161203288a6c100c20", kill_on_drop: false }` [INFO] [stderr] warning: unexpected `cfg` condition value: `use_std` [INFO] [stderr] --> src/lib.rs:97:17 [INFO] [stderr] | [INFO] [stderr] 97 | #![cfg_attr(not(feature = "use_std"), no_std)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: expected values for `feature` are: `default`, `query_map`, `querymap`, `serde_json`, `serdejson`, and `std` [INFO] [stderr] = help: consider adding `use_std` as a feature in `Cargo.toml` [INFO] [stderr] = note: see for more information about checking conditional configuration [INFO] [stderr] note: the lint level is defined here [INFO] [stderr] --> src/lib.rs:96:9 [INFO] [stderr] | [INFO] [stderr] 96 | #![deny(warnings)] [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] = note: `#[warn(unexpected_cfgs)]` implied by `#[warn(warnings)]` [INFO] [stderr] [INFO] [stderr] warning: unused import: `self::no_std::*` [INFO] [stderr] --> src/is_empty/mod.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | pub use self::no_std::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]` [INFO] [stderr] [INFO] [stderr] warning: unused import: `self::std::*` [INFO] [stderr] --> src/is_empty/mod.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | pub use self::std::*; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `optempty` (lib) generated 3 warnings (run `cargo fix --lib -p optempty` to apply 2 suggestions) [INFO] [stderr] warning: `optempty` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/optempty-f8c373dbb85935ca) [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] [stderr] Running tests/empty_into.rs (/opt/rustwide/target/debug/deps/empty_into-ddd8719381e8903f) [INFO] [stdout] [INFO] [stdout] running 11 tests [INFO] [stdout] test binary_heap ... ok [INFO] [stdout] test btree_set ... ok [INFO] [stdout] test btree_map ... ok [INFO] [stdout] test hash_set ... ok [INFO] [stdout] test vec_deque ... ok [INFO] [stdout] test slice ... ok [INFO] [stdout] test str ... ok [INFO] [stdout] test vec ... ok [INFO] [stdout] test linked_list ... ok [INFO] [stdout] test string ... ok [INFO] [stdout] test hash_map ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] [stderr] Running tests/is_empty.rs (/opt/rustwide/target/debug/deps/is_empty-4d8d332b34769c4e) [INFO] [stdout] [INFO] [stdout] running 11 tests [INFO] [stdout] test binary_heap ... ok [INFO] [stdout] test btree_map ... ok [INFO] [stdout] test btree_set ... ok [INFO] [stdout] test hash_set ... ok [INFO] [stdout] test hash_map ... ok [INFO] [stdout] test linked_list ... ok [INFO] [stdout] test slice ... ok [INFO] [stdout] test string ... ok [INFO] [stdout] test str ... ok [INFO] [stdout] test vec ... ok [INFO] [stdout] test vec_deque ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests optempty [INFO] [stdout] [INFO] [stdout] running 27 tests [INFO] [stdout] test src/empty_into_none.rs - empty_into_none::EmptyIntoNone::empty_into_none (line 37) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Option::is_empty (line 88) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Option::is_empty (line 103) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Result::is_empty (line 145) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Result::is_empty (line 138) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Option::is_empty (line 110) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Option::is_empty (line 74) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Option::is_empty (line 118) ... ok [INFO] [stdout] test src/empty_into_none.rs - empty_into_none::EmptyIntoNone::empty_into_none (line 19) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Option::is_empty (line 96) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Result::is_empty (line 152) ... ok [INFO] [stdout] test src/empty_into_err.rs - empty_into_err::EmptyIntoErr::empty_into_err (line 20) ... ok [INFO] [stdout] test src/empty_into_err.rs - empty_into_err::EmptyIntoErr::empty_into_err (line 38) ... ok [INFO] [stdout] test src/empty_into_none.rs - empty_into_none::EmptyIntoNone::empty_into_none (line 28) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Option::is_empty (line 81) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Result::is_empty (line 167) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Result::is_empty (line 160) ... ok [INFO] [stdout] test src/lib.rs - (line 18) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Result::is_empty (line 174) ... ok [INFO] [stdout] test src/lib.rs - (line 65) ... ok [INFO] [stdout] test src/is_empty/no_std.rs - is_empty::no_std::Result::is_empty (line 182) ... ok [INFO] [stdout] test src/lib.rs - (line 8) ... ok [INFO] [stdout] test src/lib.rs - (line 56) ... ok [INFO] [stdout] test src/lib.rs - (line 47) ... ok [INFO] [stdout] test src/lib.rs - (line 36) ... ok [INFO] [stdout] test src/lib.rs - (line 27) ... ok [INFO] [stdout] test src/empty_into_err.rs - empty_into_err::EmptyIntoErr::empty_into_err (line 29) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.29s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2983ecb8618b28dba0d377356e1e9ee5659b0cf3b68ba8161203288a6c100c20", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2983ecb8618b28dba0d377356e1e9ee5659b0cf3b68ba8161203288a6c100c20", kill_on_drop: false }` [INFO] [stdout] 2983ecb8618b28dba0d377356e1e9ee5659b0cf3b68ba8161203288a6c100c20