[INFO] fetching crate fmt-derive 0.1.2... [INFO] testing fmt-derive-0.1.2 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate fmt-derive 0.1.2 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate fmt-derive 0.1.2 [INFO] finished tweaking crates.io crate fmt-derive 0.1.2 [INFO] tweaked toml for crates.io crate fmt-derive 0.1.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate fmt-derive 0.1.2 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 23 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-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] de6c8c907a91cff0f2f72cf8bdcd3c04e3a2ac39b8c43d6673a8502b6fef7acb [INFO] running `Command { std: "docker" "start" "-a" "de6c8c907a91cff0f2f72cf8bdcd3c04e3a2ac39b8c43d6673a8502b6fef7acb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de6c8c907a91cff0f2f72cf8bdcd3c04e3a2ac39b8c43d6673a8502b6fef7acb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de6c8c907a91cff0f2f72cf8bdcd3c04e3a2ac39b8c43d6673a8502b6fef7acb", kill_on_drop: false }` [INFO] [stdout] de6c8c907a91cff0f2f72cf8bdcd3c04e3a2ac39b8c43d6673a8502b6fef7acb [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] d6673ff3fc6724b9d10b3c553fb82d450602fef6b8df3d50395e3aa0e37d1baa [INFO] running `Command { std: "docker" "start" "-a" "d6673ff3fc6724b9d10b3c553fb82d450602fef6b8df3d50395e3aa0e37d1baa", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling winnow v0.7.13 [INFO] [stderr] Compiling hashbrown v0.16.0 [INFO] [stderr] Compiling toml_datetime v0.7.2 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling indexmap v2.11.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling toml_parser v1.0.3 [INFO] [stderr] Compiling toml_edit v0.23.6 [INFO] [stderr] Compiling proc-macro-crate v3.4.0 [INFO] [stderr] Compiling fmt-derive-proc v0.1.2 [INFO] [stderr] Compiling fmt-derive v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.95s [INFO] running `Command { std: "docker" "inspect" "d6673ff3fc6724b9d10b3c553fb82d450602fef6b8df3d50395e3aa0e37d1baa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6673ff3fc6724b9d10b3c553fb82d450602fef6b8df3d50395e3aa0e37d1baa", kill_on_drop: false }` [INFO] [stdout] d6673ff3fc6724b9d10b3c553fb82d450602fef6b8df3d50395e3aa0e37d1baa [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] 2e6d920480b370bd6c179950e5aafa97b537723d24bec20bb77657a75f927f0e [INFO] running `Command { std: "docker" "start" "-a" "2e6d920480b370bd6c179950e5aafa97b537723d24bec20bb77657a75f927f0e", kill_on_drop: false }` [INFO] [stderr] Compiling yansi v1.0.1 [INFO] [stderr] Compiling pretty_assertions v1.4.1 [INFO] [stderr] Compiling fmt-derive v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `float` is never read [INFO] [stdout] --> src/test/basic_union.rs:9:7 [INFO] [stdout] | [INFO] [stdout] 7 | pub union UnionDebug { [INFO] [stdout] | ---------- field in this union [INFO] [stdout] 8 | pub unsigned: u32, [INFO] [stdout] 9 | pub float: f32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `float` is never read [INFO] [stdout] --> src/test/basic_union.rs:15:7 [INFO] [stdout] | [INFO] [stdout] 13 | pub union UnionDisplay { [INFO] [stdout] | ------------ field in this union [INFO] [stdout] 14 | pub unsigned: u32, [INFO] [stdout] 15 | pub float: f32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.45s [INFO] running `Command { std: "docker" "inspect" "2e6d920480b370bd6c179950e5aafa97b537723d24bec20bb77657a75f927f0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e6d920480b370bd6c179950e5aafa97b537723d24bec20bb77657a75f927f0e", kill_on_drop: false }` [INFO] [stdout] 2e6d920480b370bd6c179950e5aafa97b537723d24bec20bb77657a75f927f0e [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] 2478e7f07a6e04b3732a213d9bd3c36a52a41b48bd142a94414ce06dfa888a37 [INFO] running `Command { std: "docker" "start" "-a" "2478e7f07a6e04b3732a213d9bd3c36a52a41b48bd142a94414ce06dfa888a37", kill_on_drop: false }` [INFO] [stderr] warning: field `float` is never read [INFO] [stdout] [INFO] [stderr] --> src/test/basic_union.rs:9:7 [INFO] [stdout] running 16 tests [INFO] [stderr] | [INFO] [stderr] 7 | pub union UnionDebug { [INFO] [stderr] | ---------- field in this union [INFO] [stderr] 8 | pub unsigned: u32, [INFO] [stderr] 9 | pub float: f32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: field `float` is never read [INFO] [stderr] --> src/test/basic_union.rs:15:7 [INFO] [stderr] | [INFO] [stderr] 13 | pub union UnionDisplay { [INFO] [stderr] | ------------ field in this union [INFO] [stderr] 14 | pub unsigned: u32, [INFO] [stderr] 15 | pub float: f32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `fmt-derive` (lib test) generated 2 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fmt_derive-40eb2958fb6d76a7) [INFO] [stdout] test test::basic_enum::struct_variant_test ... ok [INFO] [stdout] test test::basic_struct::tuple_struct_test ... ok [INFO] [stdout] test test::basic_enum::unit_variant_test ... ok [INFO] [stdout] test test::basic_enum::tuple_variant_test ... ok [INFO] [stdout] test test::basic_union::union_test ... ok [INFO] [stdout] test test::custom_fmt_enum::struct_variant_test ... ok [INFO] [stdout] test test::generics::test_b ... ok [INFO] [stdout] test test::generics::test_c ... ok [INFO] [stdout] test test::ignored_field::not_unit_test ... ok [INFO] [stdout] test test::ignored_field::struct_test ... ok [INFO] [stdout] test test::ignored_field::tuple_struct_test ... ok [INFO] [stdout] test test::readme::main ... ok [INFO] [stdout] test test::basic_struct::unit_struct_test ... ok [INFO] [stdout] test test::basic_struct::struct_test ... ok [INFO] [stdout] test test::generics::test_a ... ok [INFO] [stdout] test test::custom_fmt_enum::tuple_variant_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests fmt_derive [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test src/lib.rs - (line 46) - compile fail ... ok [INFO] [stdout] test src/lib.rs - (line 37) - compile fail ... ok [INFO] [stdout] test src/lib.rs - (line 142) ... ok [INFO] [stdout] test src/lib.rs - (line 57) ... ok [INFO] [stdout] test src/lib.rs - (line 11) ... ok [INFO] [stdout] test src/lib.rs - (line 82) ... ok [INFO] [stdout] test src/lib.rs - shadowed_reexport_trick (line 171) ... ok [INFO] [stdout] test src/lib.rs - (line 126) ... ok [INFO] [stdout] test src/lib.rs - (line 100) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.71s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2478e7f07a6e04b3732a213d9bd3c36a52a41b48bd142a94414ce06dfa888a37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2478e7f07a6e04b3732a213d9bd3c36a52a41b48bd142a94414ce06dfa888a37", kill_on_drop: false }` [INFO] [stdout] 2478e7f07a6e04b3732a213d9bd3c36a52a41b48bd142a94414ce06dfa888a37