[INFO] updating cached repository mathieu-pousse/discover
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mathieu-pousse/discover
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mathieu-pousse/discover" "work/ex/beta-1.37-6/sources/1.36.0/gh/mathieu-pousse/discover"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mathieu-pousse/discover'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mathieu-pousse/discover" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mathieu-pousse/discover"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mathieu-pousse/discover'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 618ccb86c8b90815495d7355be37d3ecea6d9357
[INFO] sha for GitHub repo mathieu-pousse/discover: 618ccb86c8b90815495d7355be37d3ecea6d9357
[INFO] validating manifest of mathieu-pousse/discover 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 mathieu-pousse/discover 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 mathieu-pousse/discover
[INFO] finished frobbing mathieu-pousse/discover
[INFO] frobbed toml for mathieu-pousse/discover written to work/ex/beta-1.37-6/sources/1.36.0/gh/mathieu-pousse/discover/Cargo.toml
[INFO] started frobbing mathieu-pousse/discover
[INFO] finished frobbing mathieu-pousse/discover
[INFO] frobbed toml for mathieu-pousse/discover written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mathieu-pousse/discover/Cargo.toml
[INFO] crate mathieu-pousse/discover already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mathieu-pousse/discover/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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 mathieu-pousse/discover against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mathieu-pousse/discover:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 424cd0d57c0cecd004bbead2da5ac1febac5e1f2f4ebef2c0c578b69a8db7343
[INFO] running `"docker" "start" "-a" "424cd0d57c0cecd004bbead2da5ac1febac5e1f2f4ebef2c0c578b69a8db7343"`
[INFO] [stderr]    Compiling discover v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "424cd0d57c0cecd004bbead2da5ac1febac5e1f2f4ebef2c0c578b69a8db7343"`
[INFO] running `"docker" "rm" "-f" "424cd0d57c0cecd004bbead2da5ac1febac5e1f2f4ebef2c0c578b69a8db7343"`
[INFO] [stdout] 424cd0d57c0cecd004bbead2da5ac1febac5e1f2f4ebef2c0c578b69a8db7343
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mathieu-pousse/discover:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3eda717aad18118f41825015b91fc60d537a46a433ea61a49d8014b5732ff984
[INFO] running `"docker" "start" "-a" "3eda717aad18118f41825015b91fc60d537a46a433ea61a49d8014b5732ff984"`
[INFO] [stderr]    Compiling discover v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "3eda717aad18118f41825015b91fc60d537a46a433ea61a49d8014b5732ff984"`
[INFO] running `"docker" "rm" "-f" "3eda717aad18118f41825015b91fc60d537a46a433ea61a49d8014b5732ff984"`
[INFO] [stdout] 3eda717aad18118f41825015b91fc60d537a46a433ea61a49d8014b5732ff984
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mathieu-pousse/discover:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 7adb4df793b60fa07612b0ae07f6383a5ccbed0e4fe4a949a4a45363095809e7
[INFO] running `"docker" "start" "-a" "7adb4df793b60fa07612b0ae07f6383a5ccbed0e4fe4a949a4a45363095809e7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/discover-ca53852eae8d782e
[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" "7adb4df793b60fa07612b0ae07f6383a5ccbed0e4fe4a949a4a45363095809e7"`
[INFO] running `"docker" "rm" "-f" "7adb4df793b60fa07612b0ae07f6383a5ccbed0e4fe4a949a4a45363095809e7"`
[INFO] [stdout] 7adb4df793b60fa07612b0ae07f6383a5ccbed0e4fe4a949a4a45363095809e7