[INFO] cloning repository https://github.com/scrooloose/yukondoit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scrooloose/yukondoit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscrooloose%2Fyukondoit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscrooloose%2Fyukondoit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c293fe548acbe9c7fd14b8f5478d855f502a29bd
[INFO] checking scrooloose/yukondoit against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscrooloose%2Fyukondoit" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scrooloose/yukondoit on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/scrooloose/yukondoit
[INFO] finished tweaking git repo https://github.com/scrooloose/yukondoit
[INFO] tweaked toml for git repo https://github.com/scrooloose/yukondoit written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/scrooloose/yukondoit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 214f1c3e9833b1722e512e554bb380850818a1575e0ea854793f9b4297671839
[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" "214f1c3e9833b1722e512e554bb380850818a1575e0ea854793f9b4297671839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "214f1c3e9833b1722e512e554bb380850818a1575e0ea854793f9b4297671839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "214f1c3e9833b1722e512e554bb380850818a1575e0ea854793f9b4297671839", kill_on_drop: false }`
[INFO] [stdout] 214f1c3e9833b1722e512e554bb380850818a1575e0ea854793f9b4297671839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12ff564f082a32f4f0d99d2ffec082f6efe9a8f445380033f799b4fbe14cd939
[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" "12ff564f082a32f4f0d99d2ffec082f6efe9a8f445380033f799b4fbe14cd939", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]     Checking either v1.0.3
[INFO] [stderr]     Checking unicode_names v0.1.7 (https://github.com/antifuchs/unicode_names?branch=fix-for-rust-1-10#65bde797)
[INFO] [stderr]     Checking colored v1.4.1
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/unicode_names-f870144857f19535/65bde79/src/lib.rs:550:32
[INFO] [stdout]     |
[INFO] [stdout] 550 |             for x in lo as u32 ... hi as u32 {
[INFO] [stdout]     |                                ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]     |
[INFO] [stdout] 550 |             for x in lo as u32 .. hi as u32 {
[INFO] [stdout]     |                                ^^
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 550 |             for x in lo as u32 ..= hi as u32 {
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking itertools v0.5.9
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unicode_names`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "12ff564f082a32f4f0d99d2ffec082f6efe9a8f445380033f799b4fbe14cd939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12ff564f082a32f4f0d99d2ffec082f6efe9a8f445380033f799b4fbe14cd939", kill_on_drop: false }`
[INFO] [stdout] 12ff564f082a32f4f0d99d2ffec082f6efe9a8f445380033f799b4fbe14cd939