[INFO] updating cached repository udoprog/kernelstats
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/udoprog/kernelstats
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/udoprog/kernelstats" "work/ex/beta-1.38-1/sources/1.37.0/gh/udoprog/kernelstats"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/udoprog/kernelstats'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/udoprog/kernelstats" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/udoprog/kernelstats"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/udoprog/kernelstats'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0c50deab262e424e69b70ea2106694e2c80739c7
[INFO] sha for GitHub repo udoprog/kernelstats: 0c50deab262e424e69b70ea2106694e2c80739c7
[INFO] validating manifest of udoprog/kernelstats 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 udoprog/kernelstats 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 udoprog/kernelstats
[INFO] finished frobbing udoprog/kernelstats
[INFO] frobbed toml for udoprog/kernelstats written to work/ex/beta-1.38-1/sources/1.37.0/gh/udoprog/kernelstats/Cargo.toml
[INFO] started frobbing udoprog/kernelstats
[INFO] finished frobbing udoprog/kernelstats
[INFO] frobbed toml for udoprog/kernelstats written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/udoprog/kernelstats/Cargo.toml
[INFO] crate udoprog/kernelstats 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] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/udoprog/kernelstats/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "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 udoprog/kernelstats 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/udoprog/kernelstats:/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] dbde73ca7ced04c45d6a9ef03ce5a1abd30d62c2e5d7936e17ca499dbeaae785
[INFO] running `"docker" "start" "-a" "dbde73ca7ced04c45d6a9ef03ce5a1abd30d62c2e5d7936e17ca499dbeaae785"`
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.7
[INFO] [stderr]    Compiling flate2 v1.0.11
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling serde_yaml v0.8.9
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling pretty_env_logger v0.2.5
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling reqwest v0.9.19
[INFO] [stderr]    Compiling kernelstats v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.68s
[INFO] running `"docker" "inspect" "dbde73ca7ced04c45d6a9ef03ce5a1abd30d62c2e5d7936e17ca499dbeaae785"`
[INFO] running `"docker" "rm" "-f" "dbde73ca7ced04c45d6a9ef03ce5a1abd30d62c2e5d7936e17ca499dbeaae785"`
[INFO] [stdout] dbde73ca7ced04c45d6a9ef03ce5a1abd30d62c2e5d7936e17ca499dbeaae785
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/udoprog/kernelstats:/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] 62b69392af692658b7b8d3262ca8929e6c9b83b64923e731a9193f1ce1f021b2
[INFO] running `"docker" "start" "-a" "62b69392af692658b7b8d3262ca8929e6c9b83b64923e731a9193f1ce1f021b2"`
[INFO] [stderr]    Compiling kernelstats v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `"docker" "inspect" "62b69392af692658b7b8d3262ca8929e6c9b83b64923e731a9193f1ce1f021b2"`
[INFO] running `"docker" "rm" "-f" "62b69392af692658b7b8d3262ca8929e6c9b83b64923e731a9193f1ce1f021b2"`
[INFO] [stdout] 62b69392af692658b7b8d3262ca8929e6c9b83b64923e731a9193f1ce1f021b2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/udoprog/kernelstats:/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] a5f0ace9e3ce4fb53c6c0f3f7924aa764892edaa5cfbdfca4db5ba47098c0af4
[INFO] running `"docker" "start" "-a" "a5f0ace9e3ce4fb53c6c0f3f7924aa764892edaa5cfbdfca4db5ba47098c0af4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/kernelstats-46d6481554dd9f5e
[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/kernelstats-21fc9c319b0b6f4f
[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]    Doc-tests kernelstats
[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" "a5f0ace9e3ce4fb53c6c0f3f7924aa764892edaa5cfbdfca4db5ba47098c0af4"`
[INFO] running `"docker" "rm" "-f" "a5f0ace9e3ce4fb53c6c0f3f7924aa764892edaa5cfbdfca4db5ba47098c0af4"`
[INFO] [stdout] a5f0ace9e3ce4fb53c6c0f3f7924aa764892edaa5cfbdfca4db5ba47098c0af4