[INFO] updating cached repository Nixes/rust_plot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Nixes/rust_plot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Nixes/rust_plot" "work/ex/beta-1.38-1/sources/1.37.0/gh/Nixes/rust_plot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Nixes/rust_plot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Nixes/rust_plot" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nixes/rust_plot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nixes/rust_plot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] da3c0fc1f7aa489e7172bb4dea0832d80f6e57eb
[INFO] sha for GitHub repo Nixes/rust_plot: da3c0fc1f7aa489e7172bb4dea0832d80f6e57eb
[INFO] validating manifest of Nixes/rust_plot 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 Nixes/rust_plot 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 Nixes/rust_plot
[INFO] finished frobbing Nixes/rust_plot
[INFO] frobbed toml for Nixes/rust_plot written to work/ex/beta-1.38-1/sources/1.37.0/gh/Nixes/rust_plot/Cargo.toml
[INFO] started frobbing Nixes/rust_plot
[INFO] finished frobbing Nixes/rust_plot
[INFO] frobbed toml for Nixes/rust_plot written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nixes/rust_plot/Cargo.toml
[INFO] crate Nixes/rust_plot 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/Nixes/rust_plot/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[INFO] the lockfile is outdated, regenerating it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 Nixes/rust_plot against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nixes/rust_plot:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 4511aadaa3919c0b98d698a5e55927113504ebd281e3b0c8988fb1af20124e31
[INFO] running `"docker" "start" "-a" "4511aadaa3919c0b98d698a5e55927113504ebd281e3b0c8988fb1af20124e31"`
[INFO] [stderr]    Compiling piston2d-graphics v0.16.0
[INFO] [stderr]    Compiling rust_plot v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `"docker" "inspect" "4511aadaa3919c0b98d698a5e55927113504ebd281e3b0c8988fb1af20124e31"`
[INFO] running `"docker" "rm" "-f" "4511aadaa3919c0b98d698a5e55927113504ebd281e3b0c8988fb1af20124e31"`
[INFO] [stdout] 4511aadaa3919c0b98d698a5e55927113504ebd281e3b0c8988fb1af20124e31
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nixes/rust_plot:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6f3887773f95be102356ce82e998cd4586b971d4698eef2881cabc067da38cef
[INFO] running `"docker" "start" "-a" "6f3887773f95be102356ce82e998cd4586b971d4698eef2881cabc067da38cef"`
[INFO] [stderr]    Compiling rust_plot v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] error: `#[test]` attribute is only allowed on non associated functions
[INFO] [stderr]   --> src/plot.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 | /     pub fn gen_test(&mut self,min:u32,max:u32) {
[INFO] [stderr] 62 | |         let step_amount: u32 = (max - min) / self.line_max_samples as u32;
[INFO] [stderr] 63 | |
[INFO] [stderr] 64 | |         for i in 0..self.line_max_samples as u32 {
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |         }
[INFO] [stderr] 68 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rust_plot`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6f3887773f95be102356ce82e998cd4586b971d4698eef2881cabc067da38cef"`
[INFO] running `"docker" "rm" "-f" "6f3887773f95be102356ce82e998cd4586b971d4698eef2881cabc067da38cef"`
[INFO] [stdout] 6f3887773f95be102356ce82e998cd4586b971d4698eef2881cabc067da38cef