[INFO] updating cached repository fdulger/hello-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fdulger/hello-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fdulger/hello-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/fdulger/hello-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/fdulger/hello-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fdulger/hello-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fdulger/hello-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fdulger/hello-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b17e5595d841ede289a4f9ad35360cc6d1b3e522
[INFO] sha for GitHub repo fdulger/hello-rust: b17e5595d841ede289a4f9ad35360cc6d1b3e522
[INFO] validating manifest of fdulger/hello-rust on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fdulger/hello-rust on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fdulger/hello-rust
[INFO] finished frobbing fdulger/hello-rust
[INFO] frobbed toml for fdulger/hello-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/fdulger/hello-rust/Cargo.toml
[INFO] started frobbing fdulger/hello-rust
[INFO] finished frobbing fdulger/hello-rust
[INFO] frobbed toml for fdulger/hello-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fdulger/hello-rust/Cargo.toml
[INFO] crate fdulger/hello-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "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" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing fdulger/hello-rust against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/fdulger/hello-rust:/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] ecbadeae403d6a6fa48e2436075c294d934909905a961fb201ad25887177ecf5
[INFO] running `"docker" "start" "-a" "ecbadeae403d6a6fa48e2436075c294d934909905a961fb201ad25887177ecf5"`
[INFO] [stderr]    Compiling hello_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let mut parts = line.split(", ").collect::<Vec<&str>>();
[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/main.rs:32:7
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut c = Category {
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "ecbadeae403d6a6fa48e2436075c294d934909905a961fb201ad25887177ecf5"`
[INFO] running `"docker" "rm" "-f" "ecbadeae403d6a6fa48e2436075c294d934909905a961fb201ad25887177ecf5"`
[INFO] [stdout] ecbadeae403d6a6fa48e2436075c294d934909905a961fb201ad25887177ecf5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/fdulger/hello-rust:/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7f6463af729108440715f59da3f5d10c20f8e49fdff80e37f27a59bae837612f
[INFO] running `"docker" "start" "-a" "7f6463af729108440715f59da3f5d10c20f8e49fdff80e37f27a59bae837612f"`
[INFO] [stderr]    Compiling hello_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let mut parts = line.split(", ").collect::<Vec<&str>>();
[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/main.rs:32:7
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut c = Category {
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "7f6463af729108440715f59da3f5d10c20f8e49fdff80e37f27a59bae837612f"`
[INFO] running `"docker" "rm" "-f" "7f6463af729108440715f59da3f5d10c20f8e49fdff80e37f27a59bae837612f"`
[INFO] [stdout] 7f6463af729108440715f59da3f5d10c20f8e49fdff80e37f27a59bae837612f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/fdulger/hello-rust:/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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 2d45df4c604c54f2c153a182dfafe1f91719ad019f28e513ac37aeb5339a1f18
[INFO] running `"docker" "start" "-a" "2d45df4c604c54f2c153a182dfafe1f91719ad019f28e513ac37aeb5339a1f18"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_rust-a49ecb2c471c803c
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2d45df4c604c54f2c153a182dfafe1f91719ad019f28e513ac37aeb5339a1f18"`
[INFO] running `"docker" "rm" "-f" "2d45df4c604c54f2c153a182dfafe1f91719ad019f28e513ac37aeb5339a1f18"`
[INFO] [stdout] 2d45df4c604c54f2c153a182dfafe1f91719ad019f28e513ac37aeb5339a1f18