[INFO] updating cached repository clintmod/rust-exp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/clintmod/rust-exp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/clintmod/rust-exp" "work/ex/beta-1.38-1/sources/1.37.0/gh/clintmod/rust-exp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/clintmod/rust-exp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/clintmod/rust-exp" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/clintmod/rust-exp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/clintmod/rust-exp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 41dd034be107eee56118987acdc66f1f2a8a6865
[INFO] sha for GitHub repo clintmod/rust-exp: 41dd034be107eee56118987acdc66f1f2a8a6865
[INFO] validating manifest of clintmod/rust-exp 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 clintmod/rust-exp 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 clintmod/rust-exp
[INFO] finished frobbing clintmod/rust-exp
[INFO] frobbed toml for clintmod/rust-exp written to work/ex/beta-1.38-1/sources/1.37.0/gh/clintmod/rust-exp/Cargo.toml
[INFO] started frobbing clintmod/rust-exp
[INFO] finished frobbing clintmod/rust-exp
[INFO] frobbed toml for clintmod/rust-exp written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/clintmod/rust-exp/Cargo.toml
[INFO] crate clintmod/rust-exp 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 clintmod/rust-exp 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/clintmod/rust-exp:/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] bd85441525a1d04627b11d55a94e516f3d65ab707fe2261e18839ff287449154
[INFO] running `"docker" "start" "-a" "bd85441525a1d04627b11d55a94e516f3d65ab707fe2261e18839ff287449154"`
[INFO] [stderr]    Compiling rust-exp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "bd85441525a1d04627b11d55a94e516f3d65ab707fe2261e18839ff287449154"`
[INFO] running `"docker" "rm" "-f" "bd85441525a1d04627b11d55a94e516f3d65ab707fe2261e18839ff287449154"`
[INFO] [stdout] bd85441525a1d04627b11d55a94e516f3d65ab707fe2261e18839ff287449154
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/clintmod/rust-exp:/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] 36cd15f4c10341a157b5c893565677534edf1147dbf0cd15cab6e8e7838c7283
[INFO] running `"docker" "start" "-a" "36cd15f4c10341a157b5c893565677534edf1147dbf0cd15cab6e8e7838c7283"`
[INFO] [stderr]    Compiling rust-exp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "36cd15f4c10341a157b5c893565677534edf1147dbf0cd15cab6e8e7838c7283"`
[INFO] running `"docker" "rm" "-f" "36cd15f4c10341a157b5c893565677534edf1147dbf0cd15cab6e8e7838c7283"`
[INFO] [stdout] 36cd15f4c10341a157b5c893565677534edf1147dbf0cd15cab6e8e7838c7283
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/clintmod/rust-exp:/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] d4f5348068a6e210a3c67dd8d5df1197219aea2199f8f2d956519d9a5498252e
[INFO] running `"docker" "start" "-a" "d4f5348068a6e210a3c67dd8d5df1197219aea2199f8f2d956519d9a5498252e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_exp-6b642638549b59b6
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/integration_main-f451d0d7b24b27f2
[INFO] [stdout] running 1 test
[INFO] [stdout] test strings::test_concat ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d4f5348068a6e210a3c67dd8d5df1197219aea2199f8f2d956519d9a5498252e"`
[INFO] running `"docker" "rm" "-f" "d4f5348068a6e210a3c67dd8d5df1197219aea2199f8f2d956519d9a5498252e"`
[INFO] [stdout] d4f5348068a6e210a3c67dd8d5df1197219aea2199f8f2d956519d9a5498252e