[INFO] crate bosh 0.0.0 is already in cache
[INFO] extracting crate bosh 0.0.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/bosh/0.0.0
[INFO] extracting crate bosh 0.0.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/bosh/0.0.0
[INFO] validating manifest of bosh-0.0.0 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 bosh-0.0.0 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 bosh-0.0.0
[INFO] finished frobbing bosh-0.0.0
[INFO] frobbed toml for bosh-0.0.0 written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/reg/bosh/0.0.0/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 bosh-0.0.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 7c23457b1f601fea302e100afb85797ab0be3a1e2cc3cdcae5b438cd0c6c30d5
[INFO] running `"docker" "start" "-a" "7c23457b1f601fea302e100afb85797ab0be3a1e2cc3cdcae5b438cd0c6c30d5"`
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]    Compiling structopt v0.1.7
[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 5.95s
[INFO] running `"docker" "inspect" "7c23457b1f601fea302e100afb85797ab0be3a1e2cc3cdcae5b438cd0c6c30d5"`
[INFO] running `"docker" "rm" "-f" "7c23457b1f601fea302e100afb85797ab0be3a1e2cc3cdcae5b438cd0c6c30d5"`
[INFO] [stdout] 7c23457b1f601fea302e100afb85797ab0be3a1e2cc3cdcae5b438cd0c6c30d5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2cf1bdd3dc9d65838c3ccf94afe8ba433c20f40fe22bf9c09012ef1d49454775
[INFO] running `"docker" "start" "-a" "2cf1bdd3dc9d65838c3ccf94afe8ba433c20f40fe22bf9c09012ef1d49454775"`
[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 0.65s
[INFO] running `"docker" "inspect" "2cf1bdd3dc9d65838c3ccf94afe8ba433c20f40fe22bf9c09012ef1d49454775"`
[INFO] running `"docker" "rm" "-f" "2cf1bdd3dc9d65838c3ccf94afe8ba433c20f40fe22bf9c09012ef1d49454775"`
[INFO] [stdout] 2cf1bdd3dc9d65838c3ccf94afe8ba433c20f40fe22bf9c09012ef1d49454775
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] ddfcf54a0d795a7d68246d4dc9590bd82577ff49d9b7c0d3ff13cc1bbd892e3c
[INFO] running `"docker" "start" "-a" "ddfcf54a0d795a7d68246d4dc9590bd82577ff49d9b7c0d3ff13cc1bbd892e3c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bosh-87d0c07d041f8758
[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" "ddfcf54a0d795a7d68246d4dc9590bd82577ff49d9b7c0d3ff13cc1bbd892e3c"`
[INFO] running `"docker" "rm" "-f" "ddfcf54a0d795a7d68246d4dc9590bd82577ff49d9b7c0d3ff13cc1bbd892e3c"`
[INFO] [stdout] ddfcf54a0d795a7d68246d4dc9590bd82577ff49d9b7c0d3ff13cc1bbd892e3c