[INFO] fetching crate mumlib 0.5.1...
[INFO] building mumlib-0.5.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate mumlib 0.5.1 into /workspace/builds/worker-3-tc1/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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mumlib 0.5.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92c33bf1c9b9a59c536018ccb31a98e01cba1ea171fe6ea4f706de6bfb77f83f
[INFO] running `Command { std: "docker" "start" "-a" "92c33bf1c9b9a59c536018ccb31a98e01cba1ea171fe6ea4f706de6bfb77f83f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92c33bf1c9b9a59c536018ccb31a98e01cba1ea171fe6ea4f706de6bfb77f83f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92c33bf1c9b9a59c536018ccb31a98e01cba1ea171fe6ea4f706de6bfb77f83f", kill_on_drop: false }`
[INFO] [stdout] 92c33bf1c9b9a59c536018ccb31a98e01cba1ea171fe6ea4f706de6bfb77f83f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4088f0c4728c1fcc61d9d7cac9f47735603d0bcc7a8a37881e09068e183572e6
[INFO] running `Command { std: "docker" "start" "-a" "4088f0c4728c1fcc61d9d7cac9f47735603d0bcc7a8a37881e09068e183572e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling fern v0.6.2
[INFO] [stderr]    Compiling combine v4.6.7
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling chrono v0.4.42
[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 27.54s
[INFO] running `Command { std: "docker" "inspect" "4088f0c4728c1fcc61d9d7cac9f47735603d0bcc7a8a37881e09068e183572e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4088f0c4728c1fcc61d9d7cac9f47735603d0bcc7a8a37881e09068e183572e6", kill_on_drop: false }`
[INFO] [stdout] 4088f0c4728c1fcc61d9d7cac9f47735603d0bcc7a8a37881e09068e183572e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a12fb736d527d7234ba161b5772b88de128edb79548383540d51ea6c254c0121
[INFO] running `Command { std: "docker" "start" "-a" "a12fb736d527d7234ba161b5772b88de128edb79548383540d51ea6c254c0121", 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 1.03s
[INFO] running `Command { std: "docker" "inspect" "a12fb736d527d7234ba161b5772b88de128edb79548383540d51ea6c254c0121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a12fb736d527d7234ba161b5772b88de128edb79548383540d51ea6c254c0121", kill_on_drop: false }`
[INFO] [stdout] a12fb736d527d7234ba161b5772b88de128edb79548383540d51ea6c254c0121