[INFO] crate bosh 0.0.0 is already in cache
[INFO] extracting crate bosh 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/bosh/0.0.0
[INFO] extracting crate bosh 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bosh/0.0.0
[INFO] validating manifest of bosh-0.0.0 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 bosh-0.0.0 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 bosh-0.0.0
[INFO] finished frobbing bosh-0.0.0
[INFO] frobbed toml for bosh-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/bosh/0.0.0/Cargo.toml
[INFO] started frobbing bosh-0.0.0
[INFO] finished frobbing bosh-0.0.0
[INFO] frobbed toml for bosh-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bosh/0.0.0/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 bosh-0.0.0 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/reg/bosh/0.0.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a5ef7911fd5108139dbe094a66ed1aa7a332f7d72b5df722d9381c18610c4c95
[INFO] running `"docker" "start" "-a" "a5ef7911fd5108139dbe094a66ed1aa7a332f7d72b5df722d9381c18610c4c95"`
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]    Compiling structopt v0.1.7
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]    Compiling bosh_compiler v0.0.0
[INFO] [stderr]    Compiling bosh v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut f = File::open(opt.input);
[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]     Finished dev [unoptimized + debuginfo] target(s) in 11.75s
[INFO] running `"docker" "inspect" "a5ef7911fd5108139dbe094a66ed1aa7a332f7d72b5df722d9381c18610c4c95"`
[INFO] running `"docker" "rm" "-f" "a5ef7911fd5108139dbe094a66ed1aa7a332f7d72b5df722d9381c18610c4c95"`
[INFO] [stdout] a5ef7911fd5108139dbe094a66ed1aa7a332f7d72b5df722d9381c18610c4c95
[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/reg/bosh/0.0.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 549ec407ff0ae059249196e598c0eacb8701796c4b9a4562ab0c8c14f27e36b0
[INFO] running `"docker" "start" "-a" "549ec407ff0ae059249196e598c0eacb8701796c4b9a4562ab0c8c14f27e36b0"`
[INFO] [stderr]    Compiling bosh v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut f = File::open(opt.input);
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "549ec407ff0ae059249196e598c0eacb8701796c4b9a4562ab0c8c14f27e36b0"`
[INFO] running `"docker" "rm" "-f" "549ec407ff0ae059249196e598c0eacb8701796c4b9a4562ab0c8c14f27e36b0"`
[INFO] [stdout] 549ec407ff0ae059249196e598c0eacb8701796c4b9a4562ab0c8c14f27e36b0
[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/reg/bosh/0.0.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] edcb22f09df70352e168543ac7e5fb7d931e47190ad8eb71570c25570cf1b5e2
[INFO] running `"docker" "start" "-a" "edcb22f09df70352e168543ac7e5fb7d931e47190ad8eb71570c25570cf1b5e2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bosh-d19edfd7363b43d6
[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" "edcb22f09df70352e168543ac7e5fb7d931e47190ad8eb71570c25570cf1b5e2"`
[INFO] running `"docker" "rm" "-f" "edcb22f09df70352e168543ac7e5fb7d931e47190ad8eb71570c25570cf1b5e2"`
[INFO] [stdout] edcb22f09df70352e168543ac7e5fb7d931e47190ad8eb71570c25570cf1b5e2