[INFO] cloning repository https://github.com/RussTheAerialist/artcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RussTheAerialist/artcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRussTheAerialist%2Fartcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRussTheAerialist%2Fartcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e62cfe3febe518c6e15764c219b9672f6e14bd5
[INFO] checking RussTheAerialist/artcode against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRussTheAerialist%2Fartcode" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RussTheAerialist/artcode on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RussTheAerialist/artcode
[INFO] finished tweaking git repo https://github.com/RussTheAerialist/artcode
[INFO] tweaked toml for git repo https://github.com/RussTheAerialist/artcode written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/RussTheAerialist/artcode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded combine v3.8.1
[INFO] [stderr]   Downloaded bstr v0.2.11
[INFO] [stderr]   Downloaded boolinator v2.4.0
[INFO] [stderr]   Downloaded structopt-derive v0.4.2
[INFO] [stderr]   Downloaded cargo_metadata v0.9.1
[INFO] [stderr]   Downloaded doc-comment v0.3.1
[INFO] [stderr]   Downloaded security-framework-sys v0.3.3
[INFO] [stderr]   Downloaded proc-macro-error v0.4.8
[INFO] [stderr]   Downloaded semver-parser v0.9.0
[INFO] [stderr]   Downloaded cargo-release v0.13.0
[INFO] [stderr]   Downloaded toml_edit v0.1.5
[INFO] [stderr]   Downloaded native-tls v0.2.3
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.8
[INFO] [stderr]   Downloaded tokio-uds v0.2.6
[INFO] [stderr]   Downloaded structopt v0.3.9
[INFO] [stderr]   Downloaded ascii v0.9.3
[INFO] [stderr]   Downloaded regex-automata v0.1.8
[INFO] [stderr]   Downloaded security-framework v0.3.4
[INFO] [stderr]   Downloaded clap-cargo v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e17b86f84bd8ece5ccac329af92e82a908663f1e2a76f2642f2221e0e83b611
[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" "6e17b86f84bd8ece5ccac329af92e82a908663f1e2a76f2642f2221e0e83b611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e17b86f84bd8ece5ccac329af92e82a908663f1e2a76f2642f2221e0e83b611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e17b86f84bd8ece5ccac329af92e82a908663f1e2a76f2642f2221e0e83b611", kill_on_drop: false }`
[INFO] [stdout] 6e17b86f84bd8ece5ccac329af92e82a908663f1e2a76f2642f2221e0e83b611
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19903ff136617792c109aaeb4b807315024cf7a4ab4ec3e283b779c535f9da82
[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" "19903ff136617792c109aaeb4b807315024cf7a4ab4ec3e283b779c535f9da82", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking artcode v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.28s
[INFO] running `Command { std: "docker" "inspect" "19903ff136617792c109aaeb4b807315024cf7a4ab4ec3e283b779c535f9da82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19903ff136617792c109aaeb4b807315024cf7a4ab4ec3e283b779c535f9da82", kill_on_drop: false }`
[INFO] [stdout] 19903ff136617792c109aaeb4b807315024cf7a4ab4ec3e283b779c535f9da82