[INFO] fetching crate utwt 0.4.1...
[INFO] testing utwt-0.4.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate utwt 0.4.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate utwt 0.4.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate utwt 0.4.1
[INFO] tweaked toml for crates.io crate utwt 0.4.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate utwt 0.4.1 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] crate crates.io crate utwt 0.4.1 already has a lockfile, it will not be regenerated
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1be10030e77f0ddf4a9547bf774d2b1534e3a1784baa1286ed471a2b02e6ad0d
[INFO] running `Command { std: "docker" "start" "-a" "1be10030e77f0ddf4a9547bf774d2b1534e3a1784baa1286ed471a2b02e6ad0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1be10030e77f0ddf4a9547bf774d2b1534e3a1784baa1286ed471a2b02e6ad0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be10030e77f0ddf4a9547bf774d2b1534e3a1784baa1286ed471a2b02e6ad0d", kill_on_drop: false }`
[INFO] [stdout] 1be10030e77f0ddf4a9547bf774d2b1534e3a1784baa1286ed471a2b02e6ad0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a95f6eb742ef09bddf9d8e7dac54266573da7081a5b7e93a59807c6b9d6a7bf8
[INFO] running `Command { std: "docker" "start" "-a" "a95f6eb742ef09bddf9d8e7dac54266573da7081a5b7e93a59807c6b9d6a7bf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling utwt-raw v0.4.0
[INFO] [stderr]    Compiling utwt v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.31s
[INFO] running `Command { std: "docker" "inspect" "a95f6eb742ef09bddf9d8e7dac54266573da7081a5b7e93a59807c6b9d6a7bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a95f6eb742ef09bddf9d8e7dac54266573da7081a5b7e93a59807c6b9d6a7bf8", kill_on_drop: false }`
[INFO] [stdout] a95f6eb742ef09bddf9d8e7dac54266573da7081a5b7e93a59807c6b9d6a7bf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 51769feac1f4e2d91e04629e87a671d87eceaf5678b9f750cb41b3009eb886c9
[INFO] running `Command { std: "docker" "start" "-a" "51769feac1f4e2d91e04629e87a671d87eceaf5678b9f750cb41b3009eb886c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling utwt v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "51769feac1f4e2d91e04629e87a671d87eceaf5678b9f750cb41b3009eb886c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51769feac1f4e2d91e04629e87a671d87eceaf5678b9f750cb41b3009eb886c9", kill_on_drop: false }`
[INFO] [stdout] 51769feac1f4e2d91e04629e87a671d87eceaf5678b9f750cb41b3009eb886c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] bc05065f44051209c1ee7e7648f6438a2da6b220eaf14feaa7a0bf92a00a876a
[INFO] running `Command { std: "docker" "start" "-a" "bc05065f44051209c1ee7e7648f6438a2da6b220eaf14feaa7a0bf92a00a876a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/utwt-627186807e90b0ae)
[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/basic.rs (/opt/rustwide/target/debug/deps/basic-b296be9be37b5b77)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test parse_basic32 ... ok
[INFO] [stdout] test parse_with_partial_read ... ok
[INFO] [stdout] test parse_empty ... ok
[INFO] [stdout] test parse_basic64 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests utwt
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/parse.rs - parse::UtmpParser (line 37) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 7) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 18) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/parse.rs - parse::UtmpParser (line 37) stdout ----
[INFO] [stdout] Test executable failed (exit status: 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 7) stdout ----
[INFO] [stdout] Test executable failed (exit status: 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
[INFO] [stdout]    1: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
[INFO] [stdout]    2: rust_out::main
[INFO] [stdout]    3: core::ops::function::FnOnce::call_once
[INFO] [stdout]    4: std::sys::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]    5: std::rt::lang_start::{{closure}}
[INFO] [stdout]    6: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:287:21
[INFO] [stdout]    7: std::panicking::catch_unwind::do_call
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]    8: std::panicking::catch_unwind
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]    9: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   10: std::rt::lang_start_internal::{{closure}}
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24
[INFO] [stdout]   11: std::panicking::catch_unwind::do_call
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   12: std::panicking::catch_unwind
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   13: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   14: std::rt::lang_start_internal
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5
[INFO] [stdout]   15: std::rt::lang_start
[INFO] [stdout]   16: main
[INFO] [stdout]   17: <unknown>
[INFO] [stdout]   18: __libc_start_main
[INFO] [stdout]   19: _start
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 18) stdout ----
[INFO] [stdout] Test executable failed (exit status: 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
[INFO] [stdout]    1: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
[INFO] [stdout]    2: rust_out::main
[INFO] [stdout]    3: core::ops::function::FnOnce::call_once
[INFO] [stdout]    4: std::sys::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]    5: std::rt::lang_start::{{closure}}
[INFO] [stdout]    6: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:287:21
[INFO] [stdout]    7: std::panicking::catch_unwind::do_call
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]    8: std::panicking::catch_unwind
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]    9: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   10: std::rt::lang_start_internal::{{closure}}
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24
[INFO] [stdout]   11: std::panicking::catch_unwind::do_call
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   12: std::panicking::catch_unwind
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   13: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   14: std::rt::lang_start_internal
[INFO] [stdout]              at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5
[INFO] [stdout]   15: std::rt::lang_start
[INFO] [stdout]   16: main
[INFO] [stdout]   17: <unknown>
[INFO] [stdout]   18: __libc_start_main
[INFO] [stdout]   19: _start
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 18)
[INFO] [stdout]     src/lib.rs - (line 7)
[INFO] [stdout]     src/parse.rs - parse::UtmpParser (line 37)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.57s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "bc05065f44051209c1ee7e7648f6438a2da6b220eaf14feaa7a0bf92a00a876a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc05065f44051209c1ee7e7648f6438a2da6b220eaf14feaa7a0bf92a00a876a", kill_on_drop: false }`
[INFO] [stdout] bc05065f44051209c1ee7e7648f6438a2da6b220eaf14feaa7a0bf92a00a876a