[INFO] updating cached repository https://github.com/Ekleog/todiff
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 278bb65016cb524fa2af65bbf085c178f18a43ee
[INFO] checking Ekleog/todiff against try#00e4530a79c42b21a6ca2ac1edb597c90d21f89f for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FEkleog%2Ftodiff" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ekleog/todiff on toolchain 00e4530a79c42b21a6ca2ac1edb597c90d21f89f
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Ekleog/todiff
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/Ekleog/todiff
[INFO] tweaked toml for git repo https://github.com/Ekleog/todiff written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Ekleog/todiff already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 326ca43d9be5e988e27f7b9a1ae3e3c4d7662762936f0f9bd6d1d9dcb5ff0507
[INFO] running `"docker" "start" "-a" "326ca43d9be5e988e27f7b9a1ae3e3c4d7662762936f0f9bd6d1d9dcb5ff0507"`
[INFO] [stderr]     Checking lazy_static v1.0.2
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking nom v4.0.0
[INFO] [stderr]     Checking chrono v0.4.4
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking regex v1.0.2
[INFO] [stderr]     Checking todo-txt v1.2.0
[INFO] [stderr]     Checking todiff v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compute_changes.rs:409:26
[INFO] [stderr]     |
[INFO] [stderr] 409 |                 Recurred(mut tasks) => {
[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/compute_changes.rs:409:26
[INFO] [stderr]     |
[INFO] [stderr] 409 |                 Recurred(mut tasks) => {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 20.53s
[INFO] running `"docker" "inspect" "326ca43d9be5e988e27f7b9a1ae3e3c4d7662762936f0f9bd6d1d9dcb5ff0507"`
[INFO] running `"docker" "rm" "-f" "326ca43d9be5e988e27f7b9a1ae3e3c4d7662762936f0f9bd6d1d9dcb5ff0507"`
[INFO] [stdout] 326ca43d9be5e988e27f7b9a1ae3e3c4d7662762936f0f9bd6d1d9dcb5ff0507