[INFO] fetching crate io-test 0.11.0...
[INFO] testing io-test-0.11.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate io-test 0.11.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate io-test 0.11.0
[INFO] finished tweaking crates.io crate io-test 0.11.0
[INFO] tweaked toml for crates.io crate io-test 0.11.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate io-test 0.11.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 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] b17c7523aecc8d54d5a52af596636d0ee3f9acc0d0ddcdd5cbfd437954db1e5c
[INFO] running `Command { std: "docker" "start" "-a" "b17c7523aecc8d54d5a52af596636d0ee3f9acc0d0ddcdd5cbfd437954db1e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b17c7523aecc8d54d5a52af596636d0ee3f9acc0d0ddcdd5cbfd437954db1e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b17c7523aecc8d54d5a52af596636d0ee3f9acc0d0ddcdd5cbfd437954db1e5c", kill_on_drop: false }`
[INFO] [stdout] b17c7523aecc8d54d5a52af596636d0ee3f9acc0d0ddcdd5cbfd437954db1e5c
[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] cf20206ec01b143e3392fe3137bb3a06f17292d9367b31d9856e7f93f079d61c
[INFO] running `Command { std: "docker" "start" "-a" "cf20206ec01b143e3392fe3137bb3a06f17292d9367b31d9856e7f93f079d61c", kill_on_drop: false }`
[INFO] [stderr]    Compiling io-trait v0.11.0
[INFO] [stderr]    Compiling io-test v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "cf20206ec01b143e3392fe3137bb3a06f17292d9367b31d9856e7f93f079d61c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf20206ec01b143e3392fe3137bb3a06f17292d9367b31d9856e7f93f079d61c", kill_on_drop: false }`
[INFO] [stdout] cf20206ec01b143e3392fe3137bb3a06f17292d9367b31d9856e7f93f079d61c
[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] 948e529b55cc53390767083c96dc689002a0b87175aa6779c238d92434f060db
[INFO] running `Command { std: "docker" "start" "-a" "948e529b55cc53390767083c96dc689002a0b87175aa6779c238d92434f060db", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.104
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling wasm-bindgen v0.2.104
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.104
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.54
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.104
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.104
[INFO] [stderr]    Compiling js-sys v0.3.81
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.54
[INFO] [stderr]    Compiling wasm-bindgen-test v0.3.54
[INFO] [stderr]    Compiling io-test v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lib.rs:522:39
[INFO] [stdout]     |
[INFO] [stdout] 522 |     fn check_len(m: &super::Metadata, f: fn(m: &super::Metadata) -> u64, len: u64) {
[INFO] [stdout]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 19.96s
[INFO] running `Command { std: "docker" "inspect" "948e529b55cc53390767083c96dc689002a0b87175aa6779c238d92434f060db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "948e529b55cc53390767083c96dc689002a0b87175aa6779c238d92434f060db", kill_on_drop: false }`
[INFO] [stdout] 948e529b55cc53390767083c96dc689002a0b87175aa6779c238d92434f060db
[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] 483b223461c60ddfd0298f6b622ef5fbbb4d890122289de9e39a295c55ed19c8
[INFO] running `Command { std: "docker" "start" "-a" "483b223461c60ddfd0298f6b622ef5fbbb4d890122289de9e39a295c55ed19c8", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/lib.rs:522:39
[INFO] [stderr]     |
[INFO] [stderr] 522 |     fn check_len(m: &super::Metadata, f: fn(m: &super::Metadata) -> u64, len: u64) {
[INFO] [stderr]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `io-test` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/io_test-cc8577acb6f921d2)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test test::test_args ... ok
[INFO] [stdout] test test::test_dir_fail ... ok
[INFO] [stdout] test test::test ... ok
[INFO] [stdout] test test::test_stdout ... ok
[INFO] [stdout] test test::test_err ... ok
[INFO] [stdout] test test::test_metadata ... ok
[INFO] [stdout] test test::test_now ... ok
[INFO] [stdout] test test::test_write ... ok
[INFO] [stdout] test test::test_write_recursively ... ok
[INFO] [stdout] test test::test_dir_rec ... ok
[INFO] [stdout] test test::test_write_file ... ok
[INFO] [stdout] test test::test_write_seek_end ... ok
[INFO] [stdout] test test::test_set_current_dir ... ok
[INFO] [stdout] test test::test_write_seek ... ok
[INFO] [stdout] test test::test_write_seek_current ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stderr]    Doc-tests io_test
[INFO] [stdout] 
[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" "483b223461c60ddfd0298f6b622ef5fbbb4d890122289de9e39a295c55ed19c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "483b223461c60ddfd0298f6b622ef5fbbb4d890122289de9e39a295c55ed19c8", kill_on_drop: false }`
[INFO] [stdout] 483b223461c60ddfd0298f6b622ef5fbbb4d890122289de9e39a295c55ed19c8