[INFO] cloning repository Ekleog/todiff
[INFO] running `"git" "clone" "--bare" "git://github.com/Ekleog/todiff.git" "work/cache/sources/gh/Ekleog/todiff"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/Ekleog/todiff'...
[INFO] running `"git" "clone" "work/cache/sources/gh/Ekleog/todiff" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Ekleog/todiff"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Ekleog/todiff'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Ekleog/todiff" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Ekleog/todiff"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Ekleog/todiff'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 278bb65016cb524fa2af65bbf085c178f18a43ee
[INFO] sha for GitHub repo Ekleog/todiff: 278bb65016cb524fa2af65bbf085c178f18a43ee
[INFO] validating manifest of Ekleog/todiff on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Ekleog/todiff on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Ekleog/todiff
[INFO] removed 0 missing tests
[INFO] finished frobbing Ekleog/todiff
[INFO] frobbed toml for Ekleog/todiff written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Ekleog/todiff/Cargo.toml
[INFO] started frobbing Ekleog/todiff
[INFO] removed 0 missing tests
[INFO] finished frobbing Ekleog/todiff
[INFO] frobbed toml for Ekleog/todiff written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Ekleog/todiff/Cargo.toml
[INFO] crate Ekleog/todiff already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] building Ekleog/todiff against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Ekleog/todiff:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] adba1372a909dc7da6ae5799ffaf5decdb6f55ce5766d46d71bad8a757c9ae56
[INFO] running `"docker" "start" "-a" "adba1372a909dc7da6ae5799ffaf5decdb6f55ce5766d46d71bad8a757c9ae56"`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling rand v0.5.4
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling aho-corasick v0.6.6
[INFO] [stderr]    Compiling nom v4.0.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling chrono v0.4.4
[INFO] [stderr]    Compiling todo-txt v1.2.0
[INFO] [stderr]    Compiling todiff v0.6.1 (/opt/crater/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]     Finished dev [unoptimized + debuginfo] target(s) in 45.28s
[INFO] running `"docker" "inspect" "adba1372a909dc7da6ae5799ffaf5decdb6f55ce5766d46d71bad8a757c9ae56"`
[INFO] running `"docker" "rm" "-f" "adba1372a909dc7da6ae5799ffaf5decdb6f55ce5766d46d71bad8a757c9ae56"`
[INFO] [stdout] adba1372a909dc7da6ae5799ffaf5decdb6f55ce5766d46d71bad8a757c9ae56
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Ekleog/todiff:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 55b24a293c40e08fd92b16fb82d982e5edb2e4349a76335c1fca3ea388f22478
[INFO] running `"docker" "start" "-a" "55b24a293c40e08fd92b16fb82d982e5edb2e4349a76335c1fca3ea388f22478"`
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling pretty_assertions v0.5.1
[INFO] [stderr]    Compiling todiff v0.6.1 (/opt/crater/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]     Finished dev [unoptimized + debuginfo] target(s) in 6.09s
[INFO] running `"docker" "inspect" "55b24a293c40e08fd92b16fb82d982e5edb2e4349a76335c1fca3ea388f22478"`
[INFO] running `"docker" "rm" "-f" "55b24a293c40e08fd92b16fb82d982e5edb2e4349a76335c1fca3ea388f22478"`
[INFO] [stdout] 55b24a293c40e08fd92b16fb82d982e5edb2e4349a76335c1fca3ea388f22478