[INFO] cloning repository https://github.com/crabvk/myip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crabvk/myip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrabvk%2Fmyip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrabvk%2Fmyip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93f56693b742f4b2b2081c3bd3e6d157cd4fba5b
[INFO] checking crabvk/myip against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrabvk%2Fmyip" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crabvk/myip on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/crabvk/myip
[INFO] finished tweaking git repo https://github.com/crabvk/myip
[INFO] tweaked toml for git repo https://github.com/crabvk/myip written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/crabvk/myip already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/ogham/dog`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unic-idna-punycode v0.9.0
[INFO] [stderr]   Downloaded unic-idna v0.9.0
[INFO] [stderr]   Downloaded maxminddb v0.17.0
[INFO] [stderr]   Downloaded unic-idna-mapping v0.9.0
[INFO] [stderr]   Downloaded json_minimal v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 921b00d1676d47dc6fc0c315fc52217416da9d966d2b7bdaf831d517a16b8938
[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" "921b00d1676d47dc6fc0c315fc52217416da9d966d2b7bdaf831d517a16b8938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "921b00d1676d47dc6fc0c315fc52217416da9d966d2b7bdaf831d517a16b8938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "921b00d1676d47dc6fc0c315fc52217416da9d966d2b7bdaf831d517a16b8938", kill_on_drop: false }`
[INFO] [stdout] 921b00d1676d47dc6fc0c315fc52217416da9d966d2b7bdaf831d517a16b8938
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "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] 480c4934dc0d181f553072141f1d864126b2533f00b6a7a2b7e8469c5d23054d
[INFO] running `Command { std: "docker" "start" "-a" "480c4934dc0d181f553072141f1d864126b2533f00b6a7a2b7e8469c5d23054d", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking unic-idna-punycode v0.9.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking json_minimal v0.1.3
[INFO] [stderr]     Checking unic-ucd-hangul v0.9.0
[INFO] [stderr]     Checking unic-ucd-bidi v0.9.0
[INFO] [stderr]     Checking unic-idna-mapping v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking unic-ucd-normal v0.9.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]     Checking unic-normal v0.9.0
[INFO] [stderr]     Checking unic-idna v0.9.0
[INFO] [stderr]     Checking dns v0.1.0 (https://github.com/ogham/dog#d2d22fd8)
[INFO] [stderr]     Checking dns-transport v0.1.0 (https://github.com/ogham/dog#d2d22fd8)
[INFO] [stderr]     Checking maxminddb v0.17.0
[INFO] [stderr]     Checking myip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.84s
[INFO] running `Command { std: "docker" "inspect" "480c4934dc0d181f553072141f1d864126b2533f00b6a7a2b7e8469c5d23054d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "480c4934dc0d181f553072141f1d864126b2533f00b6a7a2b7e8469c5d23054d", kill_on_drop: false }`
[INFO] [stdout] 480c4934dc0d181f553072141f1d864126b2533f00b6a7a2b7e8469c5d23054d