[INFO] cloning repository https://github.com/svix-jplatte/variable-signature-callbacks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svix-jplatte/variable-signature-callbacks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvix-jplatte%2Fvariable-signature-callbacks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvix-jplatte%2Fvariable-signature-callbacks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63122cdf2adca09cb09bded00cf19a0a660556f5
[INFO] checking svix-jplatte/variable-signature-callbacks against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvix-jplatte%2Fvariable-signature-callbacks" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/svix-jplatte/variable-signature-callbacks
[INFO] finished tweaking git repo https://github.com/svix-jplatte/variable-signature-callbacks
[INFO] tweaked toml for git repo https://github.com/svix-jplatte/variable-signature-callbacks written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/svix-jplatte/variable-signature-callbacks on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/svix-jplatte/variable-signature-callbacks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d41717a218aef51f98388b4c8664a8a9ccc9b536e6996e4fd6940b38e7f6dda9
[INFO] running `Command { std: "docker" "start" "-a" "d41717a218aef51f98388b4c8664a8a9ccc9b536e6996e4fd6940b38e7f6dda9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d41717a218aef51f98388b4c8664a8a9ccc9b536e6996e4fd6940b38e7f6dda9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d41717a218aef51f98388b4c8664a8a9ccc9b536e6996e4fd6940b38e7f6dda9", kill_on_drop: false }`
[INFO] [stdout] d41717a218aef51f98388b4c8664a8a9ccc9b536e6996e4fd6940b38e7f6dda9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 623f2f1a6264328e932b04a6c03bab6352b374e72031ddea71ccf70ad48c5506
[INFO] running `Command { std: "docker" "start" "-a" "623f2f1a6264328e932b04a6c03bab6352b374e72031ddea71ccf70ad48c5506", kill_on_drop: false }`
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "623f2f1a6264328e932b04a6c03bab6352b374e72031ddea71ccf70ad48c5506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "623f2f1a6264328e932b04a6c03bab6352b374e72031ddea71ccf70ad48c5506", kill_on_drop: false }`
[INFO] [stdout] 623f2f1a6264328e932b04a6c03bab6352b374e72031ddea71ccf70ad48c5506