[INFO] fetching crate mumlib 0.5.1...
[INFO] testing mumlib-0.5.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mumlib 0.5.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate mumlib 0.5.1
[INFO] finished tweaking crates.io crate mumlib 0.5.1
[INFO] tweaked toml for crates.io crate mumlib 0.5.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mumlib 0.5.1 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] 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 68 packages to latest compatible versions
[INFO] [stderr]       Adding colored v2.2.0 (available: v3.0.0)
[INFO] [stderr]       Adding dirs v4.0.0 (available: v6.0.0)
[INFO] [stderr]       Adding fern v0.6.2 (available: v0.7.1)
[INFO] [stderr]       Adding toml_edit v0.14.4 (available: v0.23.6)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 74594fa79236b1a481acb6735d33867a35fc7deabd718ff9185ac7e4e6559fd0
[INFO] running `Command { std: "docker" "start" "-a" "74594fa79236b1a481acb6735d33867a35fc7deabd718ff9185ac7e4e6559fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74594fa79236b1a481acb6735d33867a35fc7deabd718ff9185ac7e4e6559fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74594fa79236b1a481acb6735d33867a35fc7deabd718ff9185ac7e4e6559fd0", kill_on_drop: false }`
[INFO] [stdout] 74594fa79236b1a481acb6735d33867a35fc7deabd718ff9185ac7e4e6559fd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 30deda1dfcf09d112c7b9b5a94be46e5a464d1a36582886be7bfb8172a6de2ce
[INFO] running `Command { std: "docker" "start" "-a" "30deda1dfcf09d112c7b9b5a94be46e5a464d1a36582886be7bfb8172a6de2ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling combine v4.6.7
[INFO] [stderr]    Compiling fern v0.6.2
[INFO] [stderr]    Compiling colored v2.2.0
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling toml_edit v0.14.4
[INFO] [stderr]    Compiling mumlib v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:73:16
[INFO] [stdout]    |
[INFO] [stdout] 73 |         .level(log::LevelFilter::Debug)
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | #![warn(unused_qualifications)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 73 -         .level(log::LevelFilter::Debug)
[INFO] [stdout] 73 +         .level(LevelFilter::Debug)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.54s
[INFO] running `Command { std: "docker" "inspect" "30deda1dfcf09d112c7b9b5a94be46e5a464d1a36582886be7bfb8172a6de2ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30deda1dfcf09d112c7b9b5a94be46e5a464d1a36582886be7bfb8172a6de2ce", kill_on_drop: false }`
[INFO] [stdout] 30deda1dfcf09d112c7b9b5a94be46e5a464d1a36582886be7bfb8172a6de2ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0abd8bab4cf89ebe20820b4174d50af37c6333ce0aa95e02041ea09dd459959a
[INFO] running `Command { std: "docker" "start" "-a" "0abd8bab4cf89ebe20820b4174d50af37c6333ce0aa95e02041ea09dd459959a", kill_on_drop: false }`
[INFO] [stderr]    Compiling mumlib v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:73:16
[INFO] [stdout]    |
[INFO] [stdout] 73 |         .level(log::LevelFilter::Debug)
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | #![warn(unused_qualifications)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 73 -         .level(log::LevelFilter::Debug)
[INFO] [stdout] 73 +         .level(LevelFilter::Debug)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:73:16
[INFO] [stdout]    |
[INFO] [stdout] 73 |         .level(log::LevelFilter::Debug)
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | #![warn(unused_qualifications)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 73 -         .level(log::LevelFilter::Debug)
[INFO] [stdout] 73 +         .level(LevelFilter::Debug)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "0abd8bab4cf89ebe20820b4174d50af37c6333ce0aa95e02041ea09dd459959a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0abd8bab4cf89ebe20820b4174d50af37c6333ce0aa95e02041ea09dd459959a", kill_on_drop: false }`
[INFO] [stdout] 0abd8bab4cf89ebe20820b4174d50af37c6333ce0aa95e02041ea09dd459959a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ee222961f84c334234d0b0d58927ddc987f1d1c1835cd7b65b5e7b345ac48c60
[INFO] running `Command { std: "docker" "start" "-a" "ee222961f84c334234d0b0d58927ddc987f1d1c1835cd7b65b5e7b345ac48c60", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary qualification
[INFO] [stderr]   --> src/lib.rs:73:16
[INFO] [stderr]    |
[INFO] [stderr] 73 |         .level(log::LevelFilter::Debug)
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:9:9
[INFO] [stderr]    |
[INFO] [stderr]  9 | #![warn(unused_qualifications)]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: remove the unnecessary path segments
[INFO] [stderr]    |
[INFO] [stderr] 73 -         .level(log::LevelFilter::Debug)
[INFO] [stderr] 73 +         .level(LevelFilter::Debug)
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `mumlib` (lib) generated 1 warning (run `cargo fix --lib -p mumlib` to apply 1 suggestion)
[INFO] [stderr] warning: `mumlib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mumlib-e3cf7a8752bfbe03)
[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 mumlib
[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" "ee222961f84c334234d0b0d58927ddc987f1d1c1835cd7b65b5e7b345ac48c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee222961f84c334234d0b0d58927ddc987f1d1c1835cd7b65b5e7b345ac48c60", kill_on_drop: false }`
[INFO] [stdout] ee222961f84c334234d0b0d58927ddc987f1d1c1835cd7b65b5e7b345ac48c60