[INFO] updating cached repository ilikeavocadoes/form_reader
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ilikeavocadoes/form_reader
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ilikeavocadoes/form_reader" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ilikeavocadoes/form_reader"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ilikeavocadoes/form_reader'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ilikeavocadoes/form_reader" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ilikeavocadoes/form_reader"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ilikeavocadoes/form_reader'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bc46e2d33b379ea44cae79df387fbb67adc458ad
[INFO] sha for GitHub repo ilikeavocadoes/form_reader: bc46e2d33b379ea44cae79df387fbb67adc458ad
[INFO] validating manifest of ilikeavocadoes/form_reader on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ilikeavocadoes/form_reader on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ilikeavocadoes/form_reader
[INFO] finished frobbing ilikeavocadoes/form_reader
[INFO] frobbed toml for ilikeavocadoes/form_reader written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ilikeavocadoes/form_reader/Cargo.toml
[INFO] started frobbing ilikeavocadoes/form_reader
[INFO] finished frobbing ilikeavocadoes/form_reader
[INFO] frobbed toml for ilikeavocadoes/form_reader written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ilikeavocadoes/form_reader/Cargo.toml
[INFO] crate ilikeavocadoes/form_reader has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ilikeavocadoes/form_reader against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ilikeavocadoes/form_reader:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 1e37b8222e55a3444988b242574145ac4601801b0f166f990d01eab56881b848
[INFO] running `"docker" "start" "-a" "1e37b8222e55a3444988b242574145ac4601801b0f166f990d01eab56881b848"`
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]    Compiling syn v0.14.0
[INFO] [stderr]    Compiling nalgebra v0.13.1
[INFO] [stderr]    Compiling rusttype v0.5.2
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.14
[INFO] [stderr]    Compiling quickcheck v0.6.2
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling imageproc v0.15.0
[INFO] [stderr]    Compiling form_reader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x_out`
[INFO] [stderr]   --> src/main.rs:86:10
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let (x_out, y_out) = (x - 1, y);
[INFO] [stderr]    |          ^^^^^ help: consider prefixing with an underscore: `_x_out`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y_out`
[INFO] [stderr]   --> src/main.rs:86:17
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let (x_out, y_out) = (x - 1, y);
[INFO] [stderr]    |                 ^^^^^ help: consider prefixing with an underscore: `_y_out`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_first`
[INFO] [stderr]    --> src/main.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let x_first = x;
[INFO] [stderr]     |         ^^^^^^^ help: consider prefixing with an underscore: `_x_first`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y_first`
[INFO] [stderr]    --> src/main.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let y_first = y;
[INFO] [stderr]     |         ^^^^^^^ help: consider prefixing with an underscore: `_y_first`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:98:81
[INFO] [stderr]    |
[INFO] [stderr] 98 | fn follow_contour(img: &image::GrayImage, x: i64, y: i64, direction: Direction, mut contour: Vec<(i64, i64)>) -> Vec<(i64, i64)> {
[INFO] [stderr]    |                                                                                 ----^^^^^^^
[INFO] [stderr]    |                                                                                 |
[INFO] [stderr]    |                                                                                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `"docker" "inspect" "1e37b8222e55a3444988b242574145ac4601801b0f166f990d01eab56881b848"`
[INFO] running `"docker" "rm" "-f" "1e37b8222e55a3444988b242574145ac4601801b0f166f990d01eab56881b848"`
[INFO] [stdout] 1e37b8222e55a3444988b242574145ac4601801b0f166f990d01eab56881b848
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ilikeavocadoes/form_reader:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1bdfefd43401b32a83cc59546eaf4436583f32bc3019bf9af70dc627f6340e3c
[INFO] running `"docker" "start" "-a" "1bdfefd43401b32a83cc59546eaf4436583f32bc3019bf9af70dc627f6340e3c"`
[INFO] [stderr]    Compiling form_reader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x_out`
[INFO] [stderr]   --> src/main.rs:86:10
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let (x_out, y_out) = (x - 1, y);
[INFO] [stderr]    |          ^^^^^ help: consider prefixing with an underscore: `_x_out`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y_out`
[INFO] [stderr]   --> src/main.rs:86:17
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let (x_out, y_out) = (x - 1, y);
[INFO] [stderr]    |                 ^^^^^ help: consider prefixing with an underscore: `_y_out`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_first`
[INFO] [stderr]    --> src/main.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let x_first = x;
[INFO] [stderr]     |         ^^^^^^^ help: consider prefixing with an underscore: `_x_first`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y_first`
[INFO] [stderr]    --> src/main.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let y_first = y;
[INFO] [stderr]     |         ^^^^^^^ help: consider prefixing with an underscore: `_y_first`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:98:81
[INFO] [stderr]    |
[INFO] [stderr] 98 | fn follow_contour(img: &image::GrayImage, x: i64, y: i64, direction: Direction, mut contour: Vec<(i64, i64)>) -> Vec<(i64, i64)> {
[INFO] [stderr]    |                                                                                 ----^^^^^^^
[INFO] [stderr]    |                                                                                 |
[INFO] [stderr]    |                                                                                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `"docker" "inspect" "1bdfefd43401b32a83cc59546eaf4436583f32bc3019bf9af70dc627f6340e3c"`
[INFO] running `"docker" "rm" "-f" "1bdfefd43401b32a83cc59546eaf4436583f32bc3019bf9af70dc627f6340e3c"`
[INFO] [stdout] 1bdfefd43401b32a83cc59546eaf4436583f32bc3019bf9af70dc627f6340e3c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ilikeavocadoes/form_reader:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] abbe63d2b5ef5df5e3aa9762ba6f8ad16c9b6d84bb46e16f27517c976437b1c1
[INFO] running `"docker" "start" "-a" "abbe63d2b5ef5df5e3aa9762ba6f8ad16c9b6d84bb46e16f27517c976437b1c1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/form_reader-1fc34c7ab7af3e46
[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" "abbe63d2b5ef5df5e3aa9762ba6f8ad16c9b6d84bb46e16f27517c976437b1c1"`
[INFO] running `"docker" "rm" "-f" "abbe63d2b5ef5df5e3aa9762ba6f8ad16c9b6d84bb46e16f27517c976437b1c1"`
[INFO] [stdout] abbe63d2b5ef5df5e3aa9762ba6f8ad16c9b6d84bb46e16f27517c976437b1c1