[INFO] updating cached repository joncarr/ranbo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/joncarr/ranbo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/joncarr/ranbo" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/joncarr/ranbo"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/joncarr/ranbo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/joncarr/ranbo" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/joncarr/ranbo"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/joncarr/ranbo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 539f9534faa74671846547eb318ba57ec87adb96
[INFO] sha for GitHub repo joncarr/ranbo: 539f9534faa74671846547eb318ba57ec87adb96
[INFO] validating manifest of joncarr/ranbo on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of joncarr/ranbo on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing joncarr/ranbo
[INFO] finished frobbing joncarr/ranbo
[INFO] frobbed toml for joncarr/ranbo written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/joncarr/ranbo/Cargo.toml
[INFO] started frobbing joncarr/ranbo
[INFO] finished frobbing joncarr/ranbo
[INFO] frobbed toml for joncarr/ranbo written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/joncarr/ranbo/Cargo.toml
[INFO] crate joncarr/ranbo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking joncarr/ranbo against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-4/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/joncarr/ranbo:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d70a7f403dc3b9a6e85d6ea3729d25be0eb638100e52874dcd5263e1f3c6cc64
[INFO] running `"docker" "start" "-a" "d70a7f403dc3b9a6e85d6ea3729d25be0eb638100e52874dcd5263e1f3c6cc64"`
[INFO] [stderr]     Checking color-thief v0.1.0
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking image v0.21.0
[INFO] [stderr]     Checking ranbo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `as_string`
[INFO] [stderr]   --> src/color.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn as_string(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RGBA`
[INFO] [stderr]   --> src/color.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub struct RGBA {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/color.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn new(r: u8, g: u8, b: u8, a: u8) -> RGBA {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lighten`
[INFO] [stderr]   --> src/color.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn lighten(&mut self, percent: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     io::copy(&mut og_gpl, &mut inkscape_gpl);
[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: method is never used: `as_string`
[INFO] [stderr]   --> src/color.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn as_string(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RGBA`
[INFO] [stderr]   --> src/color.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub struct RGBA {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/color.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn new(r: u8, g: u8, b: u8, a: u8) -> RGBA {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lighten`
[INFO] [stderr]   --> src/color.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn lighten(&mut self, percent: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     io::copy(&mut og_gpl, &mut inkscape_gpl);
[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]     Finished dev [unoptimized + debuginfo] target(s) in 9.22s
[INFO] running `"docker" "inspect" "d70a7f403dc3b9a6e85d6ea3729d25be0eb638100e52874dcd5263e1f3c6cc64"`
[INFO] running `"docker" "rm" "-f" "d70a7f403dc3b9a6e85d6ea3729d25be0eb638100e52874dcd5263e1f3c6cc64"`
[INFO] [stdout] d70a7f403dc3b9a6e85d6ea3729d25be0eb638100e52874dcd5263e1f3c6cc64