[INFO] fetching crate documentation_comments 0.1.9...
[INFO] checking documentation_comments-0.1.9 against master#d49be02cf6d2e2a01264fcdef1e20c826710c0f5 for pr-133570-1
[INFO] extracting crate documentation_comments 0.1.9 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate documentation_comments 0.1.9 on toolchain d49be02cf6d2e2a01264fcdef1e20c826710c0f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate documentation_comments 0.1.9
[INFO] finished tweaking crates.io crate documentation_comments 0.1.9
[INFO] tweaked toml for crates.io crate documentation_comments 0.1.9 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate documentation_comments 0.1.9 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" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59cf3b67d76e42badb4a50331b6ff9d8c42ae8dcc1c82fa00303e53223023809
[INFO] running `Command { std: "docker" "start" "-a" "59cf3b67d76e42badb4a50331b6ff9d8c42ae8dcc1c82fa00303e53223023809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59cf3b67d76e42badb4a50331b6ff9d8c42ae8dcc1c82fa00303e53223023809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59cf3b67d76e42badb4a50331b6ff9d8c42ae8dcc1c82fa00303e53223023809", kill_on_drop: false }`
[INFO] [stdout] 59cf3b67d76e42badb4a50331b6ff9d8c42ae8dcc1c82fa00303e53223023809
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ac5e6a809326469e21e404a4d4fbbd2716a1f1cae3f9dcc4e4321771c94b3e3
[INFO] running `Command { std: "docker" "start" "-a" "1ac5e6a809326469e21e404a4d4fbbd2716a1f1cae3f9dcc4e4321771c94b3e3", kill_on_drop: false }`
[INFO] [stderr]     Checking documentation_comments v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lib.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |     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:49:34
[INFO] [stdout]    |
[INFO] [stdout] 49 |     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:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |     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:49:34
[INFO] [stdout]    |
[INFO] [stdout] 49 |     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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "1ac5e6a809326469e21e404a4d4fbbd2716a1f1cae3f9dcc4e4321771c94b3e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ac5e6a809326469e21e404a4d4fbbd2716a1f1cae3f9dcc4e4321771c94b3e3", kill_on_drop: false }`
[INFO] [stdout] 1ac5e6a809326469e21e404a4d4fbbd2716a1f1cae3f9dcc4e4321771c94b3e3