[INFO] cloning repository https://github.com/mswift42/riui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mswift42/riui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmswift42%2Friui", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmswift42%2Friui'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecad73ef93c5ff8a8e279c5c79a6096e831f985d
[INFO] checking mswift42/riui against master#2a023bf80a6fbd6a06d5460a34eb247b986286ed for pr-143764
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmswift42%2Friui" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mswift42/riui
[INFO] finished tweaking git repo https://github.com/mswift42/riui
[INFO] tweaked toml for git repo https://github.com/mswift42/riui written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mswift42/riui on toolchain 2a023bf80a6fbd6a06d5460a34eb247b986286ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mswift42/riui 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" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] [stderr]       Adding approx v0.1.1
[INFO] [stderr]       Adding autocfg v0.1.8
[INFO] [stderr]       Adding autocfg v1.5.0
[INFO] [stderr]       Adding bitflags v1.3.2
[INFO] [stderr]       Adding cloudabi v0.0.3
[INFO] [stderr]       Adding fuchsia-cprng v0.1.1
[INFO] [stderr]       Adding libc v0.2.174
[INFO] [stderr]       Adding num-traits v0.2.19
[INFO] [stderr]       Adding palette v0.4.1 (available: v0.7.6)
[INFO] [stderr]       Adding palette_derive v0.4.1
[INFO] [stderr]       Adding phf v0.7.24
[INFO] [stderr]       Adding phf_codegen v0.7.24
[INFO] [stderr]       Adding phf_generator v0.7.24
[INFO] [stderr]       Adding phf_shared v0.7.24
[INFO] [stderr]       Adding proc-macro2 v0.4.30
[INFO] [stderr]       Adding quote v0.6.13
[INFO] [stderr]       Adding rand v0.6.5
[INFO] [stderr]       Adding rand_chacha v0.1.1
[INFO] [stderr]       Adding rand_core v0.3.1
[INFO] [stderr]       Adding rand_core v0.4.2
[INFO] [stderr]       Adding rand_hc v0.1.0
[INFO] [stderr]       Adding rand_isaac v0.1.1
[INFO] [stderr]       Adding rand_jitter v0.1.4
[INFO] [stderr]       Adding rand_os v0.1.3
[INFO] [stderr]       Adding rand_pcg v0.1.2
[INFO] [stderr]       Adding rand_xorshift v0.1.1
[INFO] [stderr]       Adding rdrand v0.4.0
[INFO] [stderr]       Adding siphasher v0.2.3
[INFO] [stderr]       Adding syn v0.14.9
[INFO] [stderr]       Adding unicode-xid v0.1.0
[INFO] [stderr]       Adding winapi v0.3.9
[INFO] [stderr]       Adding winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]       Adding winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00603e425d3e306180c3869f485b497023e55d3b9459e698b70792f0bfe2a6ea
[INFO] running `Command { std: "docker" "start" "-a" "00603e425d3e306180c3869f485b497023e55d3b9459e698b70792f0bfe2a6ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00603e425d3e306180c3869f485b497023e55d3b9459e698b70792f0bfe2a6ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00603e425d3e306180c3869f485b497023e55d3b9459e698b70792f0bfe2a6ea", kill_on_drop: false }`
[INFO] [stdout] 00603e425d3e306180c3869f485b497023e55d3b9459e698b70792f0bfe2a6ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72d6085a182a0b15beaa6f480d98bf23603434fbbb76527dbc08fb4b1a27adaf
[INFO] running `Command { std: "docker" "start" "-a" "72d6085a182a0b15beaa6f480d98bf23603434fbbb76527dbc08fb4b1a27adaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]     Checking riui v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `process`
[INFO] [stdout]  --> src/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, process};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Srgb`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use palette::{Srgb, Lab};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process`
[INFO] [stdout]  --> src/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, process};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Srgb`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use palette::{Srgb, Lab};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_file` is never used
[INFO] [stdout]  --> src/main.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn load_file(path: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_file` is never used
[INFO] [stdout]  --> src/main.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn load_file(path: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.22s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "72d6085a182a0b15beaa6f480d98bf23603434fbbb76527dbc08fb4b1a27adaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d6085a182a0b15beaa6f480d98bf23603434fbbb76527dbc08fb4b1a27adaf", kill_on_drop: false }`
[INFO] [stdout] 72d6085a182a0b15beaa6f480d98bf23603434fbbb76527dbc08fb4b1a27adaf