[INFO] fetching crate art_demo_dummy 0.1.2...
[INFO] checking art_demo_dummy-0.1.2 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate art_demo_dummy 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate art_demo_dummy 0.1.2
[INFO] finished tweaking crates.io crate art_demo_dummy 0.1.2
[INFO] tweaked toml for crates.io crate art_demo_dummy 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate art_demo_dummy 0.1.2 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate art_demo_dummy 0.1.2 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0136d282e8ed87ffa0b892debaa1da5492469ecc397ca5e5a04db20646a42a9f
[INFO] running `Command { std: "docker" "start" "-a" "0136d282e8ed87ffa0b892debaa1da5492469ecc397ca5e5a04db20646a42a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0136d282e8ed87ffa0b892debaa1da5492469ecc397ca5e5a04db20646a42a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0136d282e8ed87ffa0b892debaa1da5492469ecc397ca5e5a04db20646a42a9f", kill_on_drop: false }`
[INFO] [stdout] 0136d282e8ed87ffa0b892debaa1da5492469ecc397ca5e5a04db20646a42a9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3de97360b79d2d85a1200134f524cefbf0c8acae633302c5f9e0c42fab6bcfc
[INFO] running `Command { std: "docker" "start" "-a" "e3de97360b79d2d85a1200134f524cefbf0c8acae633302c5f9e0c42fab6bcfc", kill_on_drop: false }`
[INFO] [stderr]     Checking art_demo_dummy v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::kinds::SecondaryColor`
[INFO] [stdout]  --> src/art.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::kinds::SecondaryColor;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::kinds::SecondaryColor`
[INFO] [stdout]  --> src/art.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::kinds::SecondaryColor;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/art.rs:30:16
[INFO] [stdout]    |
[INFO] [stdout] 30 |     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: `c1`
[INFO] [stdout]   --> src/art.rs:30:16
[INFO] [stdout]    |
[INFO] [stdout] 30 |     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/art.rs:30:34
[INFO] [stdout]    |
[INFO] [stdout] 30 |     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: `c2`
[INFO] [stdout]   --> src/art.rs:30:34
[INFO] [stdout]    |
[INFO] [stdout] 30 |     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: variant `Blue` is never constructed
[INFO] [stdout]   --> src/art.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub enum PrimaryColor {
[INFO] [stdout]    |              ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 14 |         Blue,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Orange` and `Purple` are never constructed
[INFO] [stdout]   --> src/art.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub enum SecondaryColor {
[INFO] [stdout]    |              -------------- variants in this enum
[INFO] [stdout] 19 |         Orange,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 20 |         Green,
[INFO] [stdout] 21 |         Purple,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Blue` is never constructed
[INFO] [stdout]   --> src/art.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub enum PrimaryColor {
[INFO] [stdout]    |              ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 14 |         Blue,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Orange` and `Purple` are never constructed
[INFO] [stdout]   --> src/art.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub enum SecondaryColor {
[INFO] [stdout]    |              -------------- variants in this enum
[INFO] [stdout] 19 |         Orange,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 20 |         Green,
[INFO] [stdout] 21 |         Purple,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "e3de97360b79d2d85a1200134f524cefbf0c8acae633302c5f9e0c42fab6bcfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3de97360b79d2d85a1200134f524cefbf0c8acae633302c5f9e0c42fab6bcfc", kill_on_drop: false }`
[INFO] [stdout] e3de97360b79d2d85a1200134f524cefbf0c8acae633302c5f9e0c42fab6bcfc