[INFO] updating cached repository MeirKriheli/rusmux
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MeirKriheli/rusmux
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MeirKriheli/rusmux" "work/ex/beta-1.38-1/sources/1.37.0/gh/MeirKriheli/rusmux"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/MeirKriheli/rusmux'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MeirKriheli/rusmux" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MeirKriheli/rusmux"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MeirKriheli/rusmux'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 09e8c1262296bfc152fbd5ac3ee589cc32d76e57
[INFO] sha for GitHub repo MeirKriheli/rusmux: 09e8c1262296bfc152fbd5ac3ee589cc32d76e57
[INFO] validating manifest of MeirKriheli/rusmux 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 MeirKriheli/rusmux 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 MeirKriheli/rusmux
[INFO] finished frobbing MeirKriheli/rusmux
[INFO] frobbed toml for MeirKriheli/rusmux written to work/ex/beta-1.38-1/sources/1.37.0/gh/MeirKriheli/rusmux/Cargo.toml
[INFO] started frobbing MeirKriheli/rusmux
[INFO] finished frobbing MeirKriheli/rusmux
[INFO] frobbed toml for MeirKriheli/rusmux written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MeirKriheli/rusmux/Cargo.toml
[INFO] crate MeirKriheli/rusmux 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 MeirKriheli/rusmux 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/MeirKriheli/rusmux:/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] 292661e370ce0f163c92eb7999371ebc603e3b4016d50162eeae3c24856f94ce
[INFO] running `"docker" "start" "-a" "292661e370ce0f163c92eb7999371ebc603e3b4016d50162eeae3c24856f94ce"`
[INFO] [stderr]    Compiling app_dirs v1.2.1
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling rusmux v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `execute`
[INFO] [stderr]   --> src/command.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn execute(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.08s
[INFO] running `"docker" "inspect" "292661e370ce0f163c92eb7999371ebc603e3b4016d50162eeae3c24856f94ce"`
[INFO] running `"docker" "rm" "-f" "292661e370ce0f163c92eb7999371ebc603e3b4016d50162eeae3c24856f94ce"`
[INFO] [stdout] 292661e370ce0f163c92eb7999371ebc603e3b4016d50162eeae3c24856f94ce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/MeirKriheli/rusmux:/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] bc24d7be7eb6d506a50bf62b9df74fd3e2a3c107c958956424f5a1957366c4a6
[INFO] running `"docker" "start" "-a" "bc24d7be7eb6d506a50bf62b9df74fd3e2a3c107c958956424f5a1957366c4a6"`
[INFO] [stderr]    Compiling rusmux v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `execute`
[INFO] [stderr]   --> src/command.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn execute(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "bc24d7be7eb6d506a50bf62b9df74fd3e2a3c107c958956424f5a1957366c4a6"`
[INFO] running `"docker" "rm" "-f" "bc24d7be7eb6d506a50bf62b9df74fd3e2a3c107c958956424f5a1957366c4a6"`
[INFO] [stdout] bc24d7be7eb6d506a50bf62b9df74fd3e2a3c107c958956424f5a1957366c4a6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/MeirKriheli/rusmux:/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] 337a3ec2c2694534c40c68c65707fe50b9c1977ed988a8702781e8b10a4b851c
[INFO] running `"docker" "start" "-a" "337a3ec2c2694534c40c68c65707fe50b9c1977ed988a8702781e8b10a4b851c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusmux-0cece052192e4312
[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" "337a3ec2c2694534c40c68c65707fe50b9c1977ed988a8702781e8b10a4b851c"`
[INFO] running `"docker" "rm" "-f" "337a3ec2c2694534c40c68c65707fe50b9c1977ed988a8702781e8b10a4b851c"`
[INFO] [stdout] 337a3ec2c2694534c40c68c65707fe50b9c1977ed988a8702781e8b10a4b851c