[INFO] crate deface 0.1.2 is already in cache
[INFO] extracting crate deface 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/deface/0.1.2
[INFO] extracting crate deface 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/deface/0.1.2
[INFO] validating manifest of deface-0.1.2 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 deface-0.1.2 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 deface-0.1.2
[INFO] finished frobbing deface-0.1.2
[INFO] frobbed toml for deface-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/deface/0.1.2/Cargo.toml
[INFO] started frobbing deface-0.1.2
[INFO] finished frobbing deface-0.1.2
[INFO] frobbed toml for deface-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/deface/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 deface-0.1.2 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/reg/deface/0.1.2:/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] afc4f92d7a646d6d7e0e8e7d581a90226671b2a4beb528e52d6e1bda0077b275
[INFO] running `"docker" "start" "-a" "afc4f92d7a646d6d7e0e8e7d581a90226671b2a4beb528e52d6e1bda0077b275"`
[INFO] [stderr]    Compiling myriad v0.1.1
[INFO] [stderr]    Compiling deface v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:441:21
[INFO] [stderr]     |
[INFO] [stderr] 441 |                     tx.send(arg);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "afc4f92d7a646d6d7e0e8e7d581a90226671b2a4beb528e52d6e1bda0077b275"`
[INFO] running `"docker" "rm" "-f" "afc4f92d7a646d6d7e0e8e7d581a90226671b2a4beb528e52d6e1bda0077b275"`
[INFO] [stdout] afc4f92d7a646d6d7e0e8e7d581a90226671b2a4beb528e52d6e1bda0077b275
[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/reg/deface/0.1.2:/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] 73fad1a0f745dff287f9b008d7e3bb774b16c71590aae52ad0c59e3b0f2db0d0
[INFO] running `"docker" "start" "-a" "73fad1a0f745dff287f9b008d7e3bb774b16c71590aae52ad0c59e3b0f2db0d0"`
[INFO] [stderr]    Compiling deface v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:441:21
[INFO] [stderr]     |
[INFO] [stderr] 441 |                     tx.send(arg);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "73fad1a0f745dff287f9b008d7e3bb774b16c71590aae52ad0c59e3b0f2db0d0"`
[INFO] running `"docker" "rm" "-f" "73fad1a0f745dff287f9b008d7e3bb774b16c71590aae52ad0c59e3b0f2db0d0"`
[INFO] [stdout] 73fad1a0f745dff287f9b008d7e3bb774b16c71590aae52ad0c59e3b0f2db0d0
[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/reg/deface/0.1.2:/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] 973002c790673061f061d2daffd6aca44fcf28d96cfac99b56731422f25957df
[INFO] running `"docker" "start" "-a" "973002c790673061f061d2daffd6aca44fcf28d96cfac99b56731422f25957df"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/deface-dda08de50fa2d677
[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" "973002c790673061f061d2daffd6aca44fcf28d96cfac99b56731422f25957df"`
[INFO] running `"docker" "rm" "-f" "973002c790673061f061d2daffd6aca44fcf28d96cfac99b56731422f25957df"`
[INFO] [stdout] 973002c790673061f061d2daffd6aca44fcf28d96cfac99b56731422f25957df