[INFO] cloning repository Mitchell-Nuckols/corner-detection
[INFO] running `"git" "clone" "--bare" "git://github.com/Mitchell-Nuckols/corner-detection.git" "work/cache/sources/gh/Mitchell-Nuckols/corner-detection"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/Mitchell-Nuckols/corner-detection'...
[INFO] running `"git" "clone" "work/cache/sources/gh/Mitchell-Nuckols/corner-detection" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/Mitchell-Nuckols/corner-detection"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/Mitchell-Nuckols/corner-detection'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Mitchell-Nuckols/corner-detection" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/Mitchell-Nuckols/corner-detection"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/Mitchell-Nuckols/corner-detection'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 46702b55be0d4080fc5218f37f0481f4c884d7fb
[INFO] sha for GitHub repo Mitchell-Nuckols/corner-detection: 46702b55be0d4080fc5218f37f0481f4c884d7fb
[INFO] validating manifest of Mitchell-Nuckols/corner-detection on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Mitchell-Nuckols/corner-detection on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Mitchell-Nuckols/corner-detection
[INFO] finished frobbing Mitchell-Nuckols/corner-detection
[INFO] frobbed toml for Mitchell-Nuckols/corner-detection written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/Mitchell-Nuckols/corner-detection/Cargo.toml
[INFO] started frobbing Mitchell-Nuckols/corner-detection
[INFO] finished frobbing Mitchell-Nuckols/corner-detection
[INFO] frobbed toml for Mitchell-Nuckols/corner-detection written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/Mitchell-Nuckols/corner-detection/Cargo.toml
[INFO] crate Mitchell-Nuckols/corner-detection has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Mitchell-Nuckols/corner-detection against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-6/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/Mitchell-Nuckols/corner-detection:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 67cbb1677d97453a1d751ba5948ae08bd6542f744b2563656251a008a20a3264
[INFO] running `"docker" "start" "-a" "67cbb1677d97453a1d751ba5948ae08bd6542f744b2563656251a008a20a3264"`
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking corner-detection v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::num::*`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:25:24
[INFO] [stderr]    |
[INFO] [stderr] 25 |                     if (x * y == img.width() * img.height()) {break;}
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ops::*`
[INFO] [stderr]   --> src/main.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 | use ops::*;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::*`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::num::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:25:24
[INFO] [stderr]    |
[INFO] [stderr] 25 |                     if (x * y == img.width() * img.height()) {break;}
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ops::*`
[INFO] [stderr]   --> src/main.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 | use ops::*;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `mat_sum` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:12:21
[INFO] [stderr]    |
[INFO] [stderr] 12 |             let mut mat_sum: f32 = 0.0;
[INFO] [stderr]    |                     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_mat_sum` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `mat_sum` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:12:21
[INFO] [stderr]    |
[INFO] [stderr] 12 |             let mut mat_sum: f32 = 0.0;
[INFO] [stderr]    |                     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_mat_sum` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `"docker" "inspect" "67cbb1677d97453a1d751ba5948ae08bd6542f744b2563656251a008a20a3264"`
[INFO] running `"docker" "rm" "-f" "67cbb1677d97453a1d751ba5948ae08bd6542f744b2563656251a008a20a3264"`
[INFO] [stdout] 67cbb1677d97453a1d751ba5948ae08bd6542f744b2563656251a008a20a3264