[INFO] fetching crate wd_log 0.2.0...
[INFO] checking wd_log-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate wd_log 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate wd_log 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wd_log 0.2.0
[INFO] finished tweaking crates.io crate wd_log 0.2.0
[INFO] tweaked toml for crates.io crate wd_log 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 37 packages
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d86a32f8c9e7c42040cde1b29ca133b3ba8aa8f4a8593ed0148dd4dd7115e6b
[INFO] running `Command { std: "docker" "start" "-a" "1d86a32f8c9e7c42040cde1b29ca133b3ba8aa8f4a8593ed0148dd4dd7115e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d86a32f8c9e7c42040cde1b29ca133b3ba8aa8f4a8593ed0148dd4dd7115e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d86a32f8c9e7c42040cde1b29ca133b3ba8aa8f4a8593ed0148dd4dd7115e6b", kill_on_drop: false }`
[INFO] [stdout] 1d86a32f8c9e7c42040cde1b29ca133b3ba8aa8f4a8593ed0148dd4dd7115e6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75111fb50819a1a5f0e6ea06aaef599aa362f8222dfa48f25db8b13a6e8d7b8b
[INFO] running `Command { std: "docker" "start" "-a" "75111fb50819a1a5f0e6ea06aaef599aa362f8222dfa48f25db8b13a6e8d7b8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking wd_log v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DEBUG`, `output`
[INFO] [stdout]   --> src/lib.rs:18:67
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use crate::{show_time, show_file_line, set_prefix, set_level, DEBUG, output, output_to_file, INFO, Level, log_prefix};
[INFO] [stdout]    |                                                                   ^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `close_output` is never used
[INFO] [stdout]    --> src/log_config.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 82  | impl LogConfig {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub fn close_output(&mut self){
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `close_output` is never used
[INFO] [stdout]    --> src/log_config.rs:141:8
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub fn close_output(){
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "75111fb50819a1a5f0e6ea06aaef599aa362f8222dfa48f25db8b13a6e8d7b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75111fb50819a1a5f0e6ea06aaef599aa362f8222dfa48f25db8b13a6e8d7b8b", kill_on_drop: false }`
[INFO] [stdout] 75111fb50819a1a5f0e6ea06aaef599aa362f8222dfa48f25db8b13a6e8d7b8b