[INFO] updating cached repository andrewyli/frustals
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andrewyli/frustals
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andrewyli/frustals" "work/ex/beta-1.38-1/sources/1.37.0/gh/andrewyli/frustals"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/andrewyli/frustals'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andrewyli/frustals" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andrewyli/frustals"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andrewyli/frustals'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8c366640860935a52e485f62edee1ef4954e13d7
[INFO] sha for GitHub repo andrewyli/frustals: 8c366640860935a52e485f62edee1ef4954e13d7
[INFO] validating manifest of andrewyli/frustals 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 andrewyli/frustals 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 andrewyli/frustals
[INFO] finished frobbing andrewyli/frustals
[INFO] frobbed toml for andrewyli/frustals written to work/ex/beta-1.38-1/sources/1.37.0/gh/andrewyli/frustals/Cargo.toml
[INFO] started frobbing andrewyli/frustals
[INFO] finished frobbing andrewyli/frustals
[INFO] frobbed toml for andrewyli/frustals written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andrewyli/frustals/Cargo.toml
[INFO] crate andrewyli/frustals 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] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/andrewyli/frustals/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[INFO] the lockfile is outdated, regenerating it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 andrewyli/frustals 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/andrewyli/frustals:/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] a037046a5bebeb127d7b0135af62db4acc70ab48e7dbe330f7758a4feaad331e
[INFO] running `"docker" "start" "-a" "a037046a5bebeb127d7b0135af62db4acc70ab48e7dbe330f7758a4feaad331e"`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling bmp v0.5.0
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling frustals v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/complex_iterator.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.63s
[INFO] running `"docker" "inspect" "a037046a5bebeb127d7b0135af62db4acc70ab48e7dbe330f7758a4feaad331e"`
[INFO] running `"docker" "rm" "-f" "a037046a5bebeb127d7b0135af62db4acc70ab48e7dbe330f7758a4feaad331e"`
[INFO] [stdout] a037046a5bebeb127d7b0135af62db4acc70ab48e7dbe330f7758a4feaad331e
[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/andrewyli/frustals:/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] 2f3b1bc1cb81a15d357e27f56829218f33ca0d82fca1e4c069503d883f8796d8
[INFO] running `"docker" "start" "-a" "2f3b1bc1cb81a15d357e27f56829218f33ca0d82fca1e4c069503d883f8796d8"`
[INFO] [stderr]    Compiling frustals v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/complex_iterator.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/complex_iterator.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         img.save("/home/andrew/Downloads/mandelbrot.bmp");
[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] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/complex_iterator.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         img.save("/home/andrew/Downloads/tribrot.bmp");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/complex_iterator.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |         img.save("/home/andrew/Downloads/something.bmp");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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 1.45s
[INFO] running `"docker" "inspect" "2f3b1bc1cb81a15d357e27f56829218f33ca0d82fca1e4c069503d883f8796d8"`
[INFO] running `"docker" "rm" "-f" "2f3b1bc1cb81a15d357e27f56829218f33ca0d82fca1e4c069503d883f8796d8"`
[INFO] [stdout] 2f3b1bc1cb81a15d357e27f56829218f33ca0d82fca1e4c069503d883f8796d8
[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/andrewyli/frustals:/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] d0bd3f0b16970dfbe89db0f3be3e5e3570ea97d5ac6f20377bb19ad5b56ac75b
[INFO] running `"docker" "start" "-a" "d0bd3f0b16970dfbe89db0f3be3e5e3570ea97d5ac6f20377bb19ad5b56ac75b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/frustals-64879318332c58ad
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test cpolynomial::test::eval_test ... ok
[INFO] [stdout] test cpolynomial::test::op_test ... ok
[INFO] [stdout] test complex_iterator::test::array_gen ... ok
[INFO] [stdout] test complex_iterator::test::something ... ok
[INFO] [stdout] test complex_iterator::test::mandelbrot ... ok
[INFO] [stdout] test complex_iterator::test::tribrot ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests frustals
[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" "d0bd3f0b16970dfbe89db0f3be3e5e3570ea97d5ac6f20377bb19ad5b56ac75b"`
[INFO] running `"docker" "rm" "-f" "d0bd3f0b16970dfbe89db0f3be3e5e3570ea97d5ac6f20377bb19ad5b56ac75b"`
[INFO] [stdout] d0bd3f0b16970dfbe89db0f3be3e5e3570ea97d5ac6f20377bb19ad5b56ac75b