[INFO] fetching crate yunsin_crate_demo 0.1.0...
[INFO] checking yunsin_crate_demo-0.1.0 against master#2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36 for pr-95819
[INFO] extracting crate yunsin_crate_demo 0.1.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate yunsin_crate_demo 0.1.0 on toolchain 2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yunsin_crate_demo 0.1.0
[INFO] finished tweaking crates.io crate yunsin_crate_demo 0.1.0
[INFO] tweaked toml for crates.io crate yunsin_crate_demo 0.1.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 244e90e5bfc7f98c044b4f068c3e55759c0ba0166c029581c0a792ae4732c5d4
[INFO] running `Command { std: "docker" "start" "-a" "244e90e5bfc7f98c044b4f068c3e55759c0ba0166c029581c0a792ae4732c5d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "244e90e5bfc7f98c044b4f068c3e55759c0ba0166c029581c0a792ae4732c5d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "244e90e5bfc7f98c044b4f068c3e55759c0ba0166c029581c0a792ae4732c5d4", kill_on_drop: false }`
[INFO] [stdout] 244e90e5bfc7f98c044b4f068c3e55759c0ba0166c029581c0a792ae4732c5d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a21b98fe210cb3a9865d74707aa17480d8d5f08a834c4794223da5b3245eda50
[INFO] running `Command { std: "docker" "start" "-a" "a21b98fe210cb3a9865d74707aa17480d8d5f08a834c4794223da5b3245eda50", kill_on_drop: false }`
[INFO] [stderr]     Checking yunsin_crate_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lib.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lib.rs:13:34
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lib.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lib.rs:13:34
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "a21b98fe210cb3a9865d74707aa17480d8d5f08a834c4794223da5b3245eda50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a21b98fe210cb3a9865d74707aa17480d8d5f08a834c4794223da5b3245eda50", kill_on_drop: false }`
[INFO] [stdout] a21b98fe210cb3a9865d74707aa17480d8d5f08a834c4794223da5b3245eda50