[INFO] fetching crate xcolor 0.5.1...
[INFO] checking xcolor-0.5.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate xcolor 0.5.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate xcolor 0.5.1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xcolor 0.5.1
[INFO] finished tweaking crates.io crate xcolor 0.5.1
[INFO] tweaked toml for crates.io crate xcolor 0.5.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate xcolor 0.5.1 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom v7.0.0
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded anyhow v1.0.43
[INFO] [stderr]   Downloaded cc v1.0.70
[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded minimal-lexical v0.1.3
[INFO] [stderr]   Downloaded x11 v2.18.2
[INFO] [stderr]   Downloaded xcb v0.9.0
[INFO] [stderr]   Downloaded nix v0.22.1
[INFO] [stderr]   Downloaded libc v0.2.101
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0da57f9fb9bb77da2005d7c7b71631efc0070d8adf69ec66f2e024177a9197ab
[INFO] running `Command { std: "docker" "start" "-a" "0da57f9fb9bb77da2005d7c7b71631efc0070d8adf69ec66f2e024177a9197ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0da57f9fb9bb77da2005d7c7b71631efc0070d8adf69ec66f2e024177a9197ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0da57f9fb9bb77da2005d7c7b71631efc0070d8adf69ec66f2e024177a9197ab", kill_on_drop: false }`
[INFO] [stdout] 0da57f9fb9bb77da2005d7c7b71631efc0070d8adf69ec66f2e024177a9197ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec9cdd38f612580dba165530b2ebc894c056aeb5da23e8bef7373f7975684cf4
[INFO] running `Command { std: "docker" "start" "-a" "ec9cdd38f612580dba165530b2ebc894c056aeb5da23e8bef7373f7975684cf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]     Checking minimal-lexical v0.1.3
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling nom v7.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.22.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling xcolor v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/location.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let mut cursor_image = XcursorImageCreate(preview_width as i32, preview_width as i32);
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/location.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let mut cursor_image = XcursorImageCreate(preview_width as i32, preview_width as i32);
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.56s
[INFO] running `Command { std: "docker" "inspect" "ec9cdd38f612580dba165530b2ebc894c056aeb5da23e8bef7373f7975684cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec9cdd38f612580dba165530b2ebc894c056aeb5da23e8bef7373f7975684cf4", kill_on_drop: false }`
[INFO] [stdout] ec9cdd38f612580dba165530b2ebc894c056aeb5da23e8bef7373f7975684cf4