[INFO] cloning repository https://github.com/joncarr/ranbo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joncarr/ranbo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoncarr%2Franbo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoncarr%2Franbo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ee26fc010269f30c919c7b08d45e2f2e8a79689
[INFO] checking joncarr/ranbo against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoncarr%2Franbo" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/joncarr/ranbo
[INFO] finished tweaking git repo https://github.com/joncarr/ranbo
[INFO] tweaked toml for git repo https://github.com/joncarr/ranbo written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/joncarr/ranbo on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/joncarr/ranbo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memoffset v0.6.3
[INFO] [stderr]   Downloaded weezl v0.1.4
[INFO] [stderr]   Downloaded num_cpus v1.10.1
[INFO] [stderr]   Downloaded constant_time_eq v0.1.3
[INFO] [stderr]   Downloaded rgb v0.8.27
[INFO] [stderr]   Downloaded vec_map v0.8.1
[INFO] [stderr]   Downloaded rand_os v0.1.2
[INFO] [stderr]   Downloaded redox_users v0.3.0
[INFO] [stderr]   Downloaded dirs v3.0.1
[INFO] [stderr]   Downloaded bytemuck v1.5.1
[INFO] [stderr]   Downloaded num-iter v0.1.37
[INFO] [stderr]   Downloaded gif v0.11.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.3
[INFO] [stderr]   Downloaded cc v1.0.30
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.3
[INFO] [stderr]   Downloaded rayon-core v1.9.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.0
[INFO] [stderr]   Downloaded rayon v1.5.0
[INFO] [stderr]   Downloaded syn v0.15.26
[INFO] [stderr]   Downloaded libc v0.2.48
[INFO] [stderr]   Downloaded argon2rs v0.2.5
[INFO] [stderr]   Downloaded color-thief v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecfb68800aabff5d9bf86d1d04917ffb6f03d800e462cc5186f538f984531733
[INFO] running `Command { std: "docker" "start" "-a" "ecfb68800aabff5d9bf86d1d04917ffb6f03d800e462cc5186f538f984531733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecfb68800aabff5d9bf86d1d04917ffb6f03d800e462cc5186f538f984531733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecfb68800aabff5d9bf86d1d04917ffb6f03d800e462cc5186f538f984531733", kill_on_drop: false }`
[INFO] [stdout] ecfb68800aabff5d9bf86d1d04917ffb6f03d800e462cc5186f538f984531733
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27ee8fc3c8c708bdc1026495ba0ff2a50efd085fdf73e5c9a32e57686e9f391f
[INFO] running `Command { std: "docker" "start" "-a" "27ee8fc3c8c708bdc1026495ba0ff2a50efd085fdf73e5c9a32e57686e9f391f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking bytemuck v1.5.1
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking weezl v0.1.4
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking color-thief v0.2.1
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking ranbo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `as_string`, `darken`, and `lighten` are never used
[INFO] [stdout]   --> src/color.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl RGB {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn as_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn darken(&mut self, percent: u8) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn lighten(&mut self, percent: u8) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RGBA` is never constructed
[INFO] [stdout]   --> src/color.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct RGBA {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `lighten` are never used
[INFO] [stdout]   --> src/color.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl RGBA {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 50 |     pub fn new(r: u8, g: u8, b: u8, a: u8) -> RGBA {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn lighten(&mut self, percent: u8) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_string`, `darken`, and `lighten` are never used
[INFO] [stdout]   --> src/color.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl RGB {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn as_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn darken(&mut self, percent: u8) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn lighten(&mut self, percent: u8) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RGBA` is never constructed
[INFO] [stdout]   --> src/color.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct RGBA {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `lighten` are never used
[INFO] [stdout]   --> src/color.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl RGBA {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 50 |     pub fn new(r: u8, g: u8, b: u8, a: u8) -> RGBA {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn lighten(&mut self, percent: u8) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.42s
[INFO] running `Command { std: "docker" "inspect" "27ee8fc3c8c708bdc1026495ba0ff2a50efd085fdf73e5c9a32e57686e9f391f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ee8fc3c8c708bdc1026495ba0ff2a50efd085fdf73e5c9a32e57686e9f391f", kill_on_drop: false }`
[INFO] [stdout] 27ee8fc3c8c708bdc1026495ba0ff2a50efd085fdf73e5c9a32e57686e9f391f