[INFO] cloning repository https://github.com/dustlang/mailgun-mailmap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dustlang/mailgun-mailmap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fmailgun-mailmap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fmailgun-mailmap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13fdc195fd41b584337e43310bc6a5a5917c4bc1
[INFO] checking dustlang/mailgun-mailmap against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fmailgun-mailmap" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dustlang/mailgun-mailmap on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dustlang/mailgun-mailmap
[INFO] finished tweaking git repo https://github.com/dustlang/mailgun-mailmap
[INFO] tweaked toml for git repo https://github.com/dustlang/mailgun-mailmap written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dustlang/mailgun-mailmap already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded curl v0.4.18
[INFO] [stderr]   Downloaded curl-sys v0.4.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 818e57f4f72149bd5eebf3a0d76d50fedecd81d12447f83318792f896b69f8dd
[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" "818e57f4f72149bd5eebf3a0d76d50fedecd81d12447f83318792f896b69f8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "818e57f4f72149bd5eebf3a0d76d50fedecd81d12447f83318792f896b69f8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "818e57f4f72149bd5eebf3a0d76d50fedecd81d12447f83318792f896b69f8dd", kill_on_drop: false }`
[INFO] [stdout] 818e57f4f72149bd5eebf3a0d76d50fedecd81d12447f83318792f896b69f8dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 735de029c6c599b9a3bc31565f9759d76091a9e69a853ecae360676f9a4f0640
[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" "735de029c6c599b9a3bc31565f9759d76091a9e69a853ecae360676f9a4f0640", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.13
[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking backtrace-sys v0.1.24
[INFO] [stderr]    Compiling syn v0.15.17
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking toml v0.4.8
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking curl v0.4.18
[INFO] [stderr]     Checking mailgun-mailmap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.90s
[INFO] running `Command { std: "docker" "inspect" "735de029c6c599b9a3bc31565f9759d76091a9e69a853ecae360676f9a4f0640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "735de029c6c599b9a3bc31565f9759d76091a9e69a853ecae360676f9a4f0640", kill_on_drop: false }`
[INFO] [stdout] 735de029c6c599b9a3bc31565f9759d76091a9e69a853ecae360676f9a4f0640