[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/beta-1.37-6/sources/1.36.0/gh/joncarr/ranbo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/joncarr/ranbo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/joncarr/ranbo" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/joncarr/ranbo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of joncarr/ranbo on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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/beta-1.37-6/sources/1.36.0/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/beta-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing joncarr/ranbo against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 395ea180f4aef99813a59398d7b4d16ce48a2fa7b03bca8ac7db1c70d49dcc7f
[INFO] running `"docker" "start" "-a" "395ea180f4aef99813a59398d7b4d16ce48a2fa7b03bca8ac7db1c70d49dcc7f"`
[INFO] [stderr]    Compiling rgb v0.7.2
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling color-thief v0.1.0
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.21.0
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 25.05s
[INFO] running `"docker" "inspect" "395ea180f4aef99813a59398d7b4d16ce48a2fa7b03bca8ac7db1c70d49dcc7f"`
[INFO] running `"docker" "rm" "-f" "395ea180f4aef99813a59398d7b4d16ce48a2fa7b03bca8ac7db1c70d49dcc7f"`
[INFO] [stdout] 395ea180f4aef99813a59398d7b4d16ce48a2fa7b03bca8ac7db1c70d49dcc7f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4917f1ea085a1dea28fafa3619282546a0c671ae08de109b47dfe13fbee0b185
[INFO] running `"docker" "start" "-a" "4917f1ea085a1dea28fafa3619282546a0c671ae08de109b47dfe13fbee0b185"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "4917f1ea085a1dea28fafa3619282546a0c671ae08de109b47dfe13fbee0b185"`
[INFO] running `"docker" "rm" "-f" "4917f1ea085a1dea28fafa3619282546a0c671ae08de109b47dfe13fbee0b185"`
[INFO] [stdout] 4917f1ea085a1dea28fafa3619282546a0c671ae08de109b47dfe13fbee0b185
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 2b58e33af3a22b217a4cd23422dbc054f76c26651dc6c38581fefb4a77b79ccf
[INFO] running `"docker" "start" "-a" "2b58e33af3a22b217a4cd23422dbc054f76c26651dc6c38581fefb4a77b79ccf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ranbo-e01d1c93cb1021b8
[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" "2b58e33af3a22b217a4cd23422dbc054f76c26651dc6c38581fefb4a77b79ccf"`
[INFO] running `"docker" "rm" "-f" "2b58e33af3a22b217a4cd23422dbc054f76c26651dc6c38581fefb4a77b79ccf"`
[INFO] [stdout] 2b58e33af3a22b217a4cd23422dbc054f76c26651dc6c38581fefb4a77b79ccf