[INFO] crate mines 0.2.1 is already in cache
[INFO] extracting crate mines 0.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/mines/0.2.1
[INFO] extracting crate mines 0.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mines/0.2.1
[INFO] validating manifest of mines-0.2.1 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 mines-0.2.1 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 mines-0.2.1
[INFO] finished frobbing mines-0.2.1
[INFO] frobbed toml for mines-0.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mines/0.2.1/Cargo.toml
[INFO] started frobbing mines-0.2.1
[INFO] finished frobbing mines-0.2.1
[INFO] frobbed toml for mines-0.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mines/0.2.1/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 mines-0.2.1 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mines/0.2.1:/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] 027a2ebec52f266a84c7600ee889a9b2a14b69c737de61720690f0648e55fc29
[INFO] running `"docker" "start" "-a" "027a2ebec52f266a84c7600ee889a9b2a14b69c737de61720690f0648e55fc29"`
[INFO] [stderr]    Compiling mines v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `"docker" "inspect" "027a2ebec52f266a84c7600ee889a9b2a14b69c737de61720690f0648e55fc29"`
[INFO] running `"docker" "rm" "-f" "027a2ebec52f266a84c7600ee889a9b2a14b69c737de61720690f0648e55fc29"`
[INFO] [stdout] 027a2ebec52f266a84c7600ee889a9b2a14b69c737de61720690f0648e55fc29
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mines/0.2.1:/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] f65aa0bb5f93c563d55b2e5a11e6faf52e28644f377130d853cb7837f42767d7
[INFO] running `"docker" "start" "-a" "f65aa0bb5f93c563d55b2e5a11e6faf52e28644f377130d853cb7837f42767d7"`
[INFO] [stderr]    Compiling mines v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "f65aa0bb5f93c563d55b2e5a11e6faf52e28644f377130d853cb7837f42767d7"`
[INFO] running `"docker" "rm" "-f" "f65aa0bb5f93c563d55b2e5a11e6faf52e28644f377130d853cb7837f42767d7"`
[INFO] [stdout] f65aa0bb5f93c563d55b2e5a11e6faf52e28644f377130d853cb7837f42767d7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mines/0.2.1:/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] 548da316fed92864f3658a3f342cec249adb53c204d3ae8999b985b028a5834c
[INFO] running `"docker" "start" "-a" "548da316fed92864f3658a3f342cec249adb53c204d3ae8999b985b028a5834c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[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] [stderr]      Running /opt/crater/target/debug/deps/mines-259c58ab68d4376d
[INFO] [stderr]    Doc-tests mines
[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" "548da316fed92864f3658a3f342cec249adb53c204d3ae8999b985b028a5834c"`
[INFO] running `"docker" "rm" "-f" "548da316fed92864f3658a3f342cec249adb53c204d3ae8999b985b028a5834c"`
[INFO] [stdout] 548da316fed92864f3658a3f342cec249adb53c204d3ae8999b985b028a5834c