[INFO] updating cached repository Dumra/testing_collections
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Dumra/testing_collections
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Dumra/testing_collections" "work/ex/beta-1.38-1/sources/1.37.0/gh/Dumra/testing_collections"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Dumra/testing_collections'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Dumra/testing_collections" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Dumra/testing_collections"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Dumra/testing_collections'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f7263d9831e93a2b1dcb7f07d0dee94db8728c35
[INFO] sha for GitHub repo Dumra/testing_collections: f7263d9831e93a2b1dcb7f07d0dee94db8728c35
[INFO] validating manifest of Dumra/testing_collections 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 Dumra/testing_collections 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 Dumra/testing_collections
[INFO] finished frobbing Dumra/testing_collections
[INFO] frobbed toml for Dumra/testing_collections written to work/ex/beta-1.38-1/sources/1.37.0/gh/Dumra/testing_collections/Cargo.toml
[INFO] started frobbing Dumra/testing_collections
[INFO] finished frobbing Dumra/testing_collections
[INFO] frobbed toml for Dumra/testing_collections written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Dumra/testing_collections/Cargo.toml
[INFO] crate Dumra/testing_collections 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 Dumra/testing_collections 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Dumra/testing_collections:/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] 4e1e6524c9e96812fd6f53c7d0af2925deb68b967517ff7713adcf8418c31978
[INFO] running `"docker" "start" "-a" "4e1e6524c9e96812fd6f53c7d0af2925deb68b967517ff7713adcf8418c31978"`
[INFO] [stderr]    Compiling collections v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `"docker" "inspect" "4e1e6524c9e96812fd6f53c7d0af2925deb68b967517ff7713adcf8418c31978"`
[INFO] running `"docker" "rm" "-f" "4e1e6524c9e96812fd6f53c7d0af2925deb68b967517ff7713adcf8418c31978"`
[INFO] [stdout] 4e1e6524c9e96812fd6f53c7d0af2925deb68b967517ff7713adcf8418c31978
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Dumra/testing_collections:/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] 792ef8198c7adc7ae0963e6b6fe6f3fa35e124a0738470643be274d3ae02440e
[INFO] running `"docker" "start" "-a" "792ef8198c7adc7ae0963e6b6fe6f3fa35e124a0738470643be274d3ae02440e"`
[INFO] [stderr]    Compiling collections v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "792ef8198c7adc7ae0963e6b6fe6f3fa35e124a0738470643be274d3ae02440e"`
[INFO] running `"docker" "rm" "-f" "792ef8198c7adc7ae0963e6b6fe6f3fa35e124a0738470643be274d3ae02440e"`
[INFO] [stdout] 792ef8198c7adc7ae0963e6b6fe6f3fa35e124a0738470643be274d3ae02440e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Dumra/testing_collections:/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] d4da424855a87d021949ab2c2176e5155b03fad060c6d1880c1dcdb722138dff
[INFO] running `"docker" "start" "-a" "d4da424855a87d021949ab2c2176e5155b03fad060c6d1880c1dcdb722138dff"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/collections-1c95712cb1f4383d
[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" "d4da424855a87d021949ab2c2176e5155b03fad060c6d1880c1dcdb722138dff"`
[INFO] running `"docker" "rm" "-f" "d4da424855a87d021949ab2c2176e5155b03fad060c6d1880c1dcdb722138dff"`
[INFO] [stdout] d4da424855a87d021949ab2c2176e5155b03fad060c6d1880c1dcdb722138dff