[INFO] updating cached repository Malmz/specs_test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Malmz/specs_test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Malmz/specs_test" "work/ex/beta-1.38-1/sources/1.37.0/gh/Malmz/specs_test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Malmz/specs_test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Malmz/specs_test" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Malmz/specs_test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Malmz/specs_test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 840b448f0e1863c63ae30da916ad7811b3719396
[INFO] sha for GitHub repo Malmz/specs_test: 840b448f0e1863c63ae30da916ad7811b3719396
[INFO] validating manifest of Malmz/specs_test 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 Malmz/specs_test 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 Malmz/specs_test
[INFO] finished frobbing Malmz/specs_test
[INFO] frobbed toml for Malmz/specs_test written to work/ex/beta-1.38-1/sources/1.37.0/gh/Malmz/specs_test/Cargo.toml
[INFO] started frobbing Malmz/specs_test
[INFO] finished frobbing Malmz/specs_test
[INFO] frobbed toml for Malmz/specs_test written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Malmz/specs_test/Cargo.toml
[INFO] crate Malmz/specs_test already has a lockfile, it will not be regenerated
[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 Malmz/specs_test 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/gh/Malmz/specs_test:/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] f72542f8af78d34c4cf8df73df5beba65abffa3c75cb151bc5c8859662008105
[INFO] running `"docker" "start" "-a" "f72542f8af78d34c4cf8df73df5beba65abffa3c75cb151bc5c8859662008105"`
[INFO] [stderr]    Compiling libc v0.2.28
[INFO] [stderr]    Compiling smallvec v0.4.1
[INFO] [stderr]    Compiling crossbeam v0.2.10
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling num_cpus v1.6.2
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling pulse v0.5.3
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling rayon v0.7.1
[INFO] [stderr]    Compiling hibitset v0.1.3
[INFO] [stderr]    Compiling shred v0.4.3
[INFO] [stderr]    Compiling specs v0.9.3
[INFO] [stderr]    Compiling specs_test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `UpdatePos`
[INFO] [stderr]   --> src/main.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | struct UpdatePos;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.60s
[INFO] running `"docker" "inspect" "f72542f8af78d34c4cf8df73df5beba65abffa3c75cb151bc5c8859662008105"`
[INFO] running `"docker" "rm" "-f" "f72542f8af78d34c4cf8df73df5beba65abffa3c75cb151bc5c8859662008105"`
[INFO] [stdout] f72542f8af78d34c4cf8df73df5beba65abffa3c75cb151bc5c8859662008105
[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/gh/Malmz/specs_test:/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] bf5f533879b9ceb9e5a1dfcd7b4beb1a04fb81a1cddc041a67b67a6c868a7110
[INFO] running `"docker" "start" "-a" "bf5f533879b9ceb9e5a1dfcd7b4beb1a04fb81a1cddc041a67b67a6c868a7110"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling specs_test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `UpdatePos`
[INFO] [stderr]   --> src/main.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | struct UpdatePos;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `"docker" "inspect" "bf5f533879b9ceb9e5a1dfcd7b4beb1a04fb81a1cddc041a67b67a6c868a7110"`
[INFO] running `"docker" "rm" "-f" "bf5f533879b9ceb9e5a1dfcd7b4beb1a04fb81a1cddc041a67b67a6c868a7110"`
[INFO] [stdout] bf5f533879b9ceb9e5a1dfcd7b4beb1a04fb81a1cddc041a67b67a6c868a7110
[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/gh/Malmz/specs_test:/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] ec4019ae7b52b1ac8f8c32b645f79097409b209c36ef5e926c5f1d6cb502bb36
[INFO] running `"docker" "start" "-a" "ec4019ae7b52b1ac8f8c32b645f79097409b209c36ef5e926c5f1d6cb502bb36"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/specs_test-ba0a0789402ff48f
[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" "ec4019ae7b52b1ac8f8c32b645f79097409b209c36ef5e926c5f1d6cb502bb36"`
[INFO] running `"docker" "rm" "-f" "ec4019ae7b52b1ac8f8c32b645f79097409b209c36ef5e926c5f1d6cb502bb36"`
[INFO] [stdout] ec4019ae7b52b1ac8f8c32b645f79097409b209c36ef5e926c5f1d6cb502bb36