[INFO] updating cached repository https://github.com/KaiseiYokoyama/repub
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92a9df969fe835a39f3ac2abb38331e2d8199399
[INFO] checking KaiseiYokoyama/repub against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiseiYokoyama%2Frepub" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KaiseiYokoyama/repub on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/KaiseiYokoyama/repub
[INFO] finished tweaking git repo https://github.com/KaiseiYokoyama/repub
[INFO] tweaked toml for git repo https://github.com/KaiseiYokoyama/repub written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/KaiseiYokoyama/repub already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] adf90067f31d1e46af4727a77a7fc163d383fc4da432bb6a227aecb38ad02d80
[INFO] running `"docker" "start" "-a" "adf90067f31d1e46af4727a77a7fc163d383fc4da432bb6a227aecb38ad02d80"`
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking twoway v0.2.0
[INFO] [stderr]    Compiling html5ever v0.24.0
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling serde v1.0.100
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking string_cache v0.7.3
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking colored_truecolor v0.1.0
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking comrak v0.6.2
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling markup5ever v0.9.0
[INFO] [stderr]     Checking repub v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/load.rs:261:17
[INFO] [stderr]     |
[INFO] [stderr] 261 |             let mut ignores = {
[INFO] [stderr]     |                 ----^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/load.rs:261:17
[INFO] [stderr]     |
[INFO] [stderr] 261 |             let mut ignores = {
[INFO] [stderr]     |                 ----^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ignored`
[INFO] [stderr]    --> src/prelude/util.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |             pub fn ignored<T: ToString>(to_string: &T) -> Self {
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Ignored`
[INFO] [stderr]    --> src/prelude/util.rs:147:13
[INFO] [stderr]     |
[INFO] [stderr] 147 |             Ignored,
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/compose.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |             std::fs::remove_dir_all(&self.tmp_dir.path);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ignored`
[INFO] [stderr]    --> src/prelude/util.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |             pub fn ignored<T: ToString>(to_string: &T) -> Self {
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Ignored`
[INFO] [stderr]    --> src/prelude/util.rs:147:13
[INFO] [stderr]     |
[INFO] [stderr] 147 |             Ignored,
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/compose.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |             std::fs::remove_dir_all(&self.tmp_dir.path);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.23s
[INFO] running `"docker" "inspect" "adf90067f31d1e46af4727a77a7fc163d383fc4da432bb6a227aecb38ad02d80"`
[INFO] running `"docker" "rm" "-f" "adf90067f31d1e46af4727a77a7fc163d383fc4da432bb6a227aecb38ad02d80"`
[INFO] [stdout] adf90067f31d1e46af4727a77a7fc163d383fc4da432bb6a227aecb38ad02d80