[INFO] crate rm-improved 0.12.0 is already in cache
[INFO] extracting crate rm-improved 0.12.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/rm-improved/0.12.0
[INFO] extracting crate rm-improved 0.12.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rm-improved/0.12.0
[INFO] validating manifest of rm-improved-0.12.0 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 rm-improved-0.12.0 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 rm-improved-0.12.0
[INFO] finished frobbing rm-improved-0.12.0
[INFO] frobbed toml for rm-improved-0.12.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rm-improved/0.12.0/Cargo.toml
[INFO] started frobbing rm-improved-0.12.0
[INFO] finished frobbing rm-improved-0.12.0
[INFO] frobbed toml for rm-improved-0.12.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rm-improved/0.12.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rm-improved-0.12.0 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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rm-improved/0.12.0:/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] 9a1b0d0fbffaa9fa1c3d5e3bd96e4b0dd3e13fa05a8a802ed03d36d36e0f08dc
[INFO] running `"docker" "start" "-a" "9a1b0d0fbffaa9fa1c3d5e3bd96e4b0dd3e13fa05a8a802ed03d36d36e0f08dc"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/main.rs` was erroneously implicitly accepted for binary `rip`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]    Compiling rm-improved v0.12.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:247:25
[INFO] [stderr]     |
[INFO] [stderr] 247 |                         fs::remove_dir_all(dest).is_ok();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.44s
[INFO] running `"docker" "inspect" "9a1b0d0fbffaa9fa1c3d5e3bd96e4b0dd3e13fa05a8a802ed03d36d36e0f08dc"`
[INFO] running `"docker" "rm" "-f" "9a1b0d0fbffaa9fa1c3d5e3bd96e4b0dd3e13fa05a8a802ed03d36d36e0f08dc"`
[INFO] [stdout] 9a1b0d0fbffaa9fa1c3d5e3bd96e4b0dd3e13fa05a8a802ed03d36d36e0f08dc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rm-improved/0.12.0:/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] d9b2752794a0c1a5a20d2ae64f1f16c6394d3195e490c67133515377c3dae46e
[INFO] running `"docker" "start" "-a" "d9b2752794a0c1a5a20d2ae64f1f16c6394d3195e490c67133515377c3dae46e"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/main.rs` was erroneously implicitly accepted for binary `rip`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]    Compiling rm-improved v0.12.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:247:25
[INFO] [stderr]     |
[INFO] [stderr] 247 |                         fs::remove_dir_all(dest).is_ok();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "d9b2752794a0c1a5a20d2ae64f1f16c6394d3195e490c67133515377c3dae46e"`
[INFO] running `"docker" "rm" "-f" "d9b2752794a0c1a5a20d2ae64f1f16c6394d3195e490c67133515377c3dae46e"`
[INFO] [stdout] d9b2752794a0c1a5a20d2ae64f1f16c6394d3195e490c67133515377c3dae46e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rm-improved/0.12.0:/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] a396b55ea4f4e08ad99b3c1b5650cae257c417c9529aa89483ac5d930d1eb489
[INFO] running `"docker" "start" "-a" "a396b55ea4f4e08ad99b3c1b5650cae257c417c9529aa89483ac5d930d1eb489"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/main.rs` was erroneously implicitly accepted for binary `rip`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rip-5a90238d50761d8b
[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" "a396b55ea4f4e08ad99b3c1b5650cae257c417c9529aa89483ac5d930d1eb489"`
[INFO] running `"docker" "rm" "-f" "a396b55ea4f4e08ad99b3c1b5650cae257c417c9529aa89483ac5d930d1eb489"`
[INFO] [stdout] a396b55ea4f4e08ad99b3c1b5650cae257c417c9529aa89483ac5d930d1eb489