[INFO] cloning repository florentw/erosion
[INFO] running `"git" "clone" "--bare" "git://github.com/florentw/erosion.git" "work/cache/sources/gh/florentw/erosion"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/florentw/erosion'...
[INFO] running `"git" "clone" "work/cache/sources/gh/florentw/erosion" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/florentw/erosion"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/florentw/erosion'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/florentw/erosion" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/florentw/erosion"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/florentw/erosion'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 350f1fb30b2bf671277850f9b72330d27248fddd
[INFO] sha for GitHub repo florentw/erosion: 350f1fb30b2bf671277850f9b72330d27248fddd
[INFO] validating manifest of florentw/erosion 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 florentw/erosion 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 florentw/erosion
[INFO] finished frobbing florentw/erosion
[INFO] frobbed toml for florentw/erosion written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/florentw/erosion/Cargo.toml
[INFO] started frobbing florentw/erosion
[INFO] finished frobbing florentw/erosion
[INFO] frobbed toml for florentw/erosion written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/florentw/erosion/Cargo.toml
[INFO] crate florentw/erosion 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building florentw/erosion against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/florentw/erosion:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 28ec7ebc0d763e0b76e55573a870a55c1ce96054ce435e6d9a0c8b4b7fca59f5
[INFO] running `"docker" "start" "-a" "28ec7ebc0d763e0b76e55573a870a55c1ce96054ce435e6d9a0c8b4b7fca59f5"`
[INFO] [stderr]    Compiling erosion v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/throughput/mod.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut running = true;
[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 0.49s
[INFO] running `"docker" "inspect" "28ec7ebc0d763e0b76e55573a870a55c1ce96054ce435e6d9a0c8b4b7fca59f5"`
[INFO] running `"docker" "rm" "-f" "28ec7ebc0d763e0b76e55573a870a55c1ce96054ce435e6d9a0c8b4b7fca59f5"`
[INFO] [stdout] 28ec7ebc0d763e0b76e55573a870a55c1ce96054ce435e6d9a0c8b4b7fca59f5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/florentw/erosion:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 693c9b39bf9d2c33928ec3e637c7d699d5422e2afc22762669a6a18c5971f0fb
[INFO] running `"docker" "start" "-a" "693c9b39bf9d2c33928ec3e637c7d699d5422e2afc22762669a6a18c5971f0fb"`
[INFO] [stderr]    Compiling erosion v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/throughput/mod.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut running = true;
[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 1.57s
[INFO] running `"docker" "inspect" "693c9b39bf9d2c33928ec3e637c7d699d5422e2afc22762669a6a18c5971f0fb"`
[INFO] running `"docker" "rm" "-f" "693c9b39bf9d2c33928ec3e637c7d699d5422e2afc22762669a6a18c5971f0fb"`
[INFO] [stdout] 693c9b39bf9d2c33928ec3e637c7d699d5422e2afc22762669a6a18c5971f0fb