[INFO] updating cached repository Mitchell-Nuckols/corner-detection
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Mitchell-Nuckols/corner-detection
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Mitchell-Nuckols/corner-detection" "work/ex/beta-1.38-1/sources/1.37.0/gh/Mitchell-Nuckols/corner-detection"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Mitchell-Nuckols/corner-detection'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Mitchell-Nuckols/corner-detection" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mitchell-Nuckols/corner-detection"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 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 Mitchell-Nuckols/corner-detection 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 Mitchell-Nuckols/corner-detection
[INFO] finished frobbing Mitchell-Nuckols/corner-detection
[INFO] frobbed toml for Mitchell-Nuckols/corner-detection written to work/ex/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/gh/Mitchell-Nuckols/corner-detection/Cargo.toml
[INFO] crate Mitchell-Nuckols/corner-detection 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Mitchell-Nuckols/corner-detection 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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] 3e1fe2f05d518619c01a57d275153f88766262b4a64f01df43235805432019c4
[INFO] running `"docker" "start" "-a" "3e1fe2f05d518619c01a57d275153f88766262b4a64f01df43235805432019c4"`
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.20.1
[INFO] [stderr]    Compiling 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: 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 21.21s
[INFO] running `"docker" "inspect" "3e1fe2f05d518619c01a57d275153f88766262b4a64f01df43235805432019c4"`
[INFO] running `"docker" "rm" "-f" "3e1fe2f05d518619c01a57d275153f88766262b4a64f01df43235805432019c4"`
[INFO] [stdout] 3e1fe2f05d518619c01a57d275153f88766262b4a64f01df43235805432019c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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] b14765c733c5e8581f7bf54714417cc0c661006eec3579299cef5f02ad88d32b
[INFO] running `"docker" "start" "-a" "b14765c733c5e8581f7bf54714417cc0c661006eec3579299cef5f02ad88d32b"`
[INFO] [stderr]    Compiling 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: 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 1.12s
[INFO] running `"docker" "inspect" "b14765c733c5e8581f7bf54714417cc0c661006eec3579299cef5f02ad88d32b"`
[INFO] running `"docker" "rm" "-f" "b14765c733c5e8581f7bf54714417cc0c661006eec3579299cef5f02ad88d32b"`
[INFO] [stdout] b14765c733c5e8581f7bf54714417cc0c661006eec3579299cef5f02ad88d32b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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] 59305b670ec60e81c584647e3430c0b5708980519ab32462874eedd910ab8361
[INFO] running `"docker" "start" "-a" "59305b670ec60e81c584647e3430c0b5708980519ab32462874eedd910ab8361"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/corner_detection-122980acf446a078
[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" "59305b670ec60e81c584647e3430c0b5708980519ab32462874eedd910ab8361"`
[INFO] running `"docker" "rm" "-f" "59305b670ec60e81c584647e3430c0b5708980519ab32462874eedd910ab8361"`
[INFO] [stdout] 59305b670ec60e81c584647e3430c0b5708980519ab32462874eedd910ab8361