[INFO] cloning repository https://github.com/R4chel/art
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/R4chel/art" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FR4chel%2Fart", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FR4chel%2Fart'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5ba76ac0cc9dec3157039943ddf7a6893af4059
[INFO] checking R4chel/art against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FR4chel%2Fart" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/R4chel/art on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/R4chel/art
[INFO] finished tweaking git repo https://github.com/R4chel/art
[INFO] tweaked toml for git repo https://github.com/R4chel/art written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/R4chel/art already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hsl v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51ed279a1e3f4d8acc88b0c5e29c523c47d574e342e9209364b5367a238898fe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "51ed279a1e3f4d8acc88b0c5e29c523c47d574e342e9209364b5367a238898fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51ed279a1e3f4d8acc88b0c5e29c523c47d574e342e9209364b5367a238898fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51ed279a1e3f4d8acc88b0c5e29c523c47d574e342e9209364b5367a238898fe", kill_on_drop: false }`
[INFO] [stdout] 51ed279a1e3f4d8acc88b0c5e29c523c47d574e342e9209364b5367a238898fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 79b14b572933012bf7d13082a48aae11b3f06150937d4880a85c35dc1de369d1
[INFO] running `Command { std: "docker" "start" "-a" "79b14b572933012bf7d13082a48aae11b3f06150937d4880a85c35dc1de369d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.71
[INFO] [stderr]    Compiling bumpalo v3.6.1
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling wasm-bindgen v0.2.71
[INFO] [stderr]     Checking hsl v0.1.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.71
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.71
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.71
[INFO] [stderr]     Checking js-sys v0.3.48
[INFO] [stderr]     Checking web-sys v0.3.48
[INFO] [stderr]     Checking art v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `size_mode_button`
[INFO] [stdout]    --> src/lib.rs:489:9
[INFO] [stdout]     |
[INFO] [stdout] 489 |     let size_mode_button = ButtonConfig::new_button(size_mode_button_config, &universe);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_size_mode_button`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size_mode_button`
[INFO] [stdout]    --> src/lib.rs:489:9
[INFO] [stdout]     |
[INFO] [stdout] 489 |     let size_mode_button = ButtonConfig::new_button(size_mode_button_config, &universe);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_size_mode_button`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` 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 [unoptimized + debuginfo] target(s) in 38.46s
[INFO] running `Command { std: "docker" "inspect" "79b14b572933012bf7d13082a48aae11b3f06150937d4880a85c35dc1de369d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79b14b572933012bf7d13082a48aae11b3f06150937d4880a85c35dc1de369d1", kill_on_drop: false }`
[INFO] [stdout] 79b14b572933012bf7d13082a48aae11b3f06150937d4880a85c35dc1de369d1