[INFO] updating cached repository bomattin/thrasher
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bomattin/thrasher
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bomattin/thrasher" "work/ex/beta-1.38-1/sources/1.37.0/gh/bomattin/thrasher"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/bomattin/thrasher'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bomattin/thrasher" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bomattin/thrasher"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bomattin/thrasher'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b2d1fcb953402dca17f2345390da48ce35e3b911
[INFO] sha for GitHub repo bomattin/thrasher: b2d1fcb953402dca17f2345390da48ce35e3b911
[INFO] validating manifest of bomattin/thrasher on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bomattin/thrasher on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bomattin/thrasher
[INFO] finished frobbing bomattin/thrasher
[INFO] frobbed toml for bomattin/thrasher written to work/ex/beta-1.38-1/sources/1.37.0/gh/bomattin/thrasher/Cargo.toml
[INFO] started frobbing bomattin/thrasher
[INFO] finished frobbing bomattin/thrasher
[INFO] frobbed toml for bomattin/thrasher written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bomattin/thrasher/Cargo.toml
[INFO] crate bomattin/thrasher already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing bomattin/thrasher against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bomattin/thrasher:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e9ad4bf124819abca45fa2f0ceb76ae859fa06f2e76d978a61823c90a738eaea
[INFO] running `"docker" "start" "-a" "e9ad4bf124819abca45fa2f0ceb76ae859fa06f2e76d978a61823c90a738eaea"`
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling thrasher v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]  --> src/filehose.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn spam(path: &PathBuf, n: i32, ext: &str) {
[INFO] [stderr]   |             ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ext`
[INFO] [stderr]  --> src/filehose.rs:8:37
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn spam(path: &PathBuf, n: i32, ext: &str) {
[INFO] [stderr]   |                                     ^^^ help: consider prefixing with an underscore: `_ext`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.66s
[INFO] running `"docker" "inspect" "e9ad4bf124819abca45fa2f0ceb76ae859fa06f2e76d978a61823c90a738eaea"`
[INFO] running `"docker" "rm" "-f" "e9ad4bf124819abca45fa2f0ceb76ae859fa06f2e76d978a61823c90a738eaea"`
[INFO] [stdout] e9ad4bf124819abca45fa2f0ceb76ae859fa06f2e76d978a61823c90a738eaea
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bomattin/thrasher:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4539236ed5ecfbb6d6ddd14ce56a702390b68dcc1d66feb4f113b4b41ec934f1
[INFO] running `"docker" "start" "-a" "4539236ed5ecfbb6d6ddd14ce56a702390b68dcc1d66feb4f113b4b41ec934f1"`
[INFO] [stderr]    Compiling thrasher v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]  --> src/filehose.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn spam(path: &PathBuf, n: i32, ext: &str) {
[INFO] [stderr]   |             ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ext`
[INFO] [stderr]  --> src/filehose.rs:8:37
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn spam(path: &PathBuf, n: i32, ext: &str) {
[INFO] [stderr]   |                                     ^^^ help: consider prefixing with an underscore: `_ext`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "4539236ed5ecfbb6d6ddd14ce56a702390b68dcc1d66feb4f113b4b41ec934f1"`
[INFO] running `"docker" "rm" "-f" "4539236ed5ecfbb6d6ddd14ce56a702390b68dcc1d66feb4f113b4b41ec934f1"`
[INFO] [stdout] 4539236ed5ecfbb6d6ddd14ce56a702390b68dcc1d66feb4f113b4b41ec934f1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bomattin/thrasher:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 31ec02acfb3ab874db0514419ecd1013871d8beabd59637f6f94f43e4426f1e0
[INFO] running `"docker" "start" "-a" "31ec02acfb3ab874db0514419ecd1013871d8beabd59637f6f94f43e4426f1e0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/thrasher-b9304d07a3ec099d
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "31ec02acfb3ab874db0514419ecd1013871d8beabd59637f6f94f43e4426f1e0"`
[INFO] running `"docker" "rm" "-f" "31ec02acfb3ab874db0514419ecd1013871d8beabd59637f6f94f43e4426f1e0"`
[INFO] [stdout] 31ec02acfb3ab874db0514419ecd1013871d8beabd59637f6f94f43e4426f1e0