[INFO] fetching crate vg_errortools 0.1.0...
[INFO] testing vg_errortools-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate vg_errortools 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate vg_errortools 0.1.0
[INFO] finished tweaking crates.io crate vg_errortools 0.1.0
[INFO] tweaked toml for crates.io crate vg_errortools 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vg_errortools 0.1.0 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 34 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 086839cef11b50b117487c698362a706cccf511a08a246556eab505d9ee5c3cd
[INFO] running `Command { std: "docker" "start" "-a" "086839cef11b50b117487c698362a706cccf511a08a246556eab505d9ee5c3cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "086839cef11b50b117487c698362a706cccf511a08a246556eab505d9ee5c3cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086839cef11b50b117487c698362a706cccf511a08a246556eab505d9ee5c3cd", kill_on_drop: false }`
[INFO] [stdout] 086839cef11b50b117487c698362a706cccf511a08a246556eab505d9ee5c3cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ed4380e04442cd2a4536c28e3553572752ccc9fb2a9c959462e9e7dd2f37a293
[INFO] running `Command { std: "docker" "start" "-a" "ed4380e04442cd2a4536c28e3553572752ccc9fb2a9c959462e9e7dd2f37a293", kill_on_drop: false }`
[INFO] [stderr]    Compiling vg_errortools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:33:45
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:5:9
[INFO] [stdout]    |
[INFO] [stdout]  5 | #![warn(unused_qualifications)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 33 -     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 33 +     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "ed4380e04442cd2a4536c28e3553572752ccc9fb2a9c959462e9e7dd2f37a293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed4380e04442cd2a4536c28e3553572752ccc9fb2a9c959462e9e7dd2f37a293", kill_on_drop: false }`
[INFO] [stdout] ed4380e04442cd2a4536c28e3553572752ccc9fb2a9c959462e9e7dd2f37a293
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 912f7c5271b8f04db2ea82211554fd7f2f67cc3752f60f9a74524372f192cc65
[INFO] running `Command { std: "docker" "start" "-a" "912f7c5271b8f04db2ea82211554fd7f2f67cc3752f60f9a74524372f192cc65", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:33:45
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:5:9
[INFO] [stdout]    |
[INFO] [stdout]  5 | #![warn(unused_qualifications)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 33 -     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 33 +     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling vg_errortools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:33:45
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:5:9
[INFO] [stdout]    |
[INFO] [stdout]  5 | #![warn(unused_qualifications)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 33 -     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 33 +     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "912f7c5271b8f04db2ea82211554fd7f2f67cc3752f60f9a74524372f192cc65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "912f7c5271b8f04db2ea82211554fd7f2f67cc3752f60f9a74524372f192cc65", kill_on_drop: false }`
[INFO] [stdout] 912f7c5271b8f04db2ea82211554fd7f2f67cc3752f60f9a74524372f192cc65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1899725d12bf064b1170602e5f9a2bd9ee8498a9ab1e0e496bd6696ed50eae13
[INFO] running `Command { std: "docker" "start" "-a" "1899725d12bf064b1170602e5f9a2bd9ee8498a9ab1e0e496bd6696ed50eae13", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary qualification
[INFO] [stderr]   --> src/lib.rs:33:45
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:5:9
[INFO] [stderr]    |
[INFO] [stderr]  5 | #![warn(unused_qualifications)]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: remove the unnecessary path segments
[INFO] [stderr]    |
[INFO] [stderr] 33 -     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr] 33 +     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `vg_errortools` (lib) generated 1 warning (run `cargo fix --lib -p vg_errortools` to apply 1 suggestion)
[INFO] [stderr] warning: `vg_errortools` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/vg_errortools-a39c50648346a0ba)
[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]    Doc-tests vg_errortools
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - fat_io_wrap_std (line 60) - compile ... ok
[INFO] [stdout] test src/lib.rs - fat_io_wrap_std (line 54) - compile ... ok
[INFO] [stdout] test src/lib.rs - MainError (line 111) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1899725d12bf064b1170602e5f9a2bd9ee8498a9ab1e0e496bd6696ed50eae13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1899725d12bf064b1170602e5f9a2bd9ee8498a9ab1e0e496bd6696ed50eae13", kill_on_drop: false }`
[INFO] [stdout] 1899725d12bf064b1170602e5f9a2bd9ee8498a9ab1e0e496bd6696ed50eae13