[INFO] fetching crate okolors 0.5.1...
[INFO] checking okolors-0.5.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate okolors 0.5.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate okolors 0.5.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate okolors 0.5.1
[INFO] finished tweaking crates.io crate okolors 0.5.1
[INFO] tweaked toml for crates.io crate okolors 0.5.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 35 packages
[INFO] [stderr]       Adding image v0.24.9 (latest: v0.25.1)
[INFO] [stderr]       Adding quantette v0.1.1 (latest: v0.2.0)
[INFO] [stderr]       Adding radium v0.7.0 (latest: v1.1.0)
[INFO] [stderr]       Adding wyz v0.5.1 (latest: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr] warning: spurious network error (3 tries remaining): [55] Failed sending data to the peer (OpenSSL SSL_read: SSL_ERROR_SYSCALL, errno 0)
[INFO] [stderr] warning: spurious network error (3 tries remaining): [55] Failed sending data to the peer (OpenSSL SSL_read: SSL_ERROR_SYSCALL, errno 0)
[INFO] [stderr] warning: spurious network error (3 tries remaining): [55] Failed sending data to the peer (OpenSSL SSL_read: SSL_ERROR_SYSCALL, errno 0)
[INFO] [stderr]   Downloaded quantette v0.1.1
[INFO] [stderr]   Downloaded palette v0.7.5
[INFO] [stderr]   Downloaded palette_derive v0.7.5
[INFO] [stderr]   Downloaded fast-srgb8 v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 119f772a82cc11d73b1414411948926f56af7fb17824edbb51412548d1ec7f1e
[INFO] running `Command { std: "docker" "start" "-a" "119f772a82cc11d73b1414411948926f56af7fb17824edbb51412548d1ec7f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "119f772a82cc11d73b1414411948926f56af7fb17824edbb51412548d1ec7f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "119f772a82cc11d73b1414411948926f56af7fb17824edbb51412548d1ec7f1e", kill_on_drop: false }`
[INFO] [stdout] 119f772a82cc11d73b1414411948926f56af7fb17824edbb51412548d1ec7f1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 752f2aa16df5b412f6491f54c0cc60423bb1cebae118d0b0de57bcd6b12f3e8d
[INFO] running `Command { std: "docker" "start" "-a" "752f2aa16df5b412f6491f54c0cc60423bb1cebae118d0b0de57bcd6b12f3e8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling palette v0.7.5
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking fast-srgb8 v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking safe_arch v0.7.1
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking wide v0.7.15
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking ordered-float v4.2.0
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]    Compiling palette_derive v0.7.5
[INFO] [stderr]     Checking quantette v0.1.1
[INFO] [stderr]     Checking okolors v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Srgb` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:349:41
[INFO] [stdout]     |
[INFO] [stdout] 347 |     use super::*;
[INFO] [stdout]     |         -------- the item `Srgb` is already imported here
[INFO] [stdout] 348 |
[INFO] [stdout] 349 |     use palette::{cast::ComponentsInto, Srgb};
[INFO] [stdout]     |                                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.98s
[INFO] running `Command { std: "docker" "inspect" "752f2aa16df5b412f6491f54c0cc60423bb1cebae118d0b0de57bcd6b12f3e8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752f2aa16df5b412f6491f54c0cc60423bb1cebae118d0b0de57bcd6b12f3e8d", kill_on_drop: false }`
[INFO] [stdout] 752f2aa16df5b412f6491f54c0cc60423bb1cebae118d0b0de57bcd6b12f3e8d