[INFO] updating cached repository dermesser/numerical-oscillator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dermesser/numerical-oscillator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dermesser/numerical-oscillator" "work/ex/beta-1.38-1/sources/1.37.0/gh/dermesser/numerical-oscillator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dermesser/numerical-oscillator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dermesser/numerical-oscillator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dermesser/numerical-oscillator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dermesser/numerical-oscillator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 492fd41ab11bbd71130d345fcb9cb81d06154086
[INFO] sha for GitHub repo dermesser/numerical-oscillator: 492fd41ab11bbd71130d345fcb9cb81d06154086
[INFO] validating manifest of dermesser/numerical-oscillator 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 dermesser/numerical-oscillator 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 dermesser/numerical-oscillator
[INFO] finished frobbing dermesser/numerical-oscillator
[INFO] frobbed toml for dermesser/numerical-oscillator written to work/ex/beta-1.38-1/sources/1.37.0/gh/dermesser/numerical-oscillator/Cargo.toml
[INFO] started frobbing dermesser/numerical-oscillator
[INFO] finished frobbing dermesser/numerical-oscillator
[INFO] frobbed toml for dermesser/numerical-oscillator written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dermesser/numerical-oscillator/Cargo.toml
[INFO] crate dermesser/numerical-oscillator 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]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing dermesser/numerical-oscillator 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/dermesser/numerical-oscillator:/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] 4d55401dcaebc45073adc4cf003cf428e8cc74ecaa0b72dc27eba07413a2199e
[INFO] running `"docker" "start" "-a" "4d55401dcaebc45073adc4cf003cf428e8cc74ecaa0b72dc27eba07413a2199e"`
[INFO] [stderr]    Compiling gnuplot v0.0.27
[INFO] [stderr]    Compiling numerical v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:287:9
[INFO] [stderr]     |
[INFO] [stderr] 287 |         io::stdout().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.69s
[INFO] running `"docker" "inspect" "4d55401dcaebc45073adc4cf003cf428e8cc74ecaa0b72dc27eba07413a2199e"`
[INFO] running `"docker" "rm" "-f" "4d55401dcaebc45073adc4cf003cf428e8cc74ecaa0b72dc27eba07413a2199e"`
[INFO] [stdout] 4d55401dcaebc45073adc4cf003cf428e8cc74ecaa0b72dc27eba07413a2199e
[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/dermesser/numerical-oscillator:/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] 250717a7070ae4a7affcbecdf0f4bbde4fdc438e49e499e77104ee305e0672d5
[INFO] running `"docker" "start" "-a" "250717a7070ae4a7affcbecdf0f4bbde4fdc438e49e499e77104ee305e0672d5"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling numerical v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:287:9
[INFO] [stderr]     |
[INFO] [stderr] 287 |         io::stdout().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "250717a7070ae4a7affcbecdf0f4bbde4fdc438e49e499e77104ee305e0672d5"`
[INFO] running `"docker" "rm" "-f" "250717a7070ae4a7affcbecdf0f4bbde4fdc438e49e499e77104ee305e0672d5"`
[INFO] [stdout] 250717a7070ae4a7affcbecdf0f4bbde4fdc438e49e499e77104ee305e0672d5
[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/dermesser/numerical-oscillator:/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] eabca77b6be39c3d602bbd837398140ce7e01379017d86d3ac9c7e0ab12e6947
[INFO] running `"docker" "start" "-a" "eabca77b6be39c3d602bbd837398140ce7e01379017d86d3ac9c7e0ab12e6947"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/numerical-9a748cf70b38f095
[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" "eabca77b6be39c3d602bbd837398140ce7e01379017d86d3ac9c7e0ab12e6947"`
[INFO] running `"docker" "rm" "-f" "eabca77b6be39c3d602bbd837398140ce7e01379017d86d3ac9c7e0ab12e6947"`
[INFO] [stdout] eabca77b6be39c3d602bbd837398140ce7e01379017d86d3ac9c7e0ab12e6947