[INFO] fetching crate gaggle 0.1.0...
[INFO] checking gaggle-0.1.0 against master#1c7b36d4db582cb47513a6c7176baaec1c3346ab for pr-99197
[INFO] extracting crate gaggle 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate gaggle 0.1.0 on toolchain 1c7b36d4db582cb47513a6c7176baaec1c3346ab
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c7b36d4db582cb47513a6c7176baaec1c3346ab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gaggle 0.1.0
[INFO] finished tweaking crates.io crate gaggle 0.1.0
[INFO] tweaked toml for crates.io crate gaggle 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate gaggle 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c7b36d4db582cb47513a6c7176baaec1c3346ab" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+1c7b36d4db582cb47513a6c7176baaec1c3346ab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98b4969c63aa66a8ca2feb8ff0ee47fe74bc698246d3bb23f10a37f58b858ae2
[INFO] running `Command { std: "docker" "start" "-a" "98b4969c63aa66a8ca2feb8ff0ee47fe74bc698246d3bb23f10a37f58b858ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98b4969c63aa66a8ca2feb8ff0ee47fe74bc698246d3bb23f10a37f58b858ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98b4969c63aa66a8ca2feb8ff0ee47fe74bc698246d3bb23f10a37f58b858ae2", kill_on_drop: false }`
[INFO] [stdout] 98b4969c63aa66a8ca2feb8ff0ee47fe74bc698246d3bb23f10a37f58b858ae2
[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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+1c7b36d4db582cb47513a6c7176baaec1c3346ab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f1399fba6539667ecdfa8586740e4e265c1d7686951cce7f5804d63cf939556
[INFO] running `Command { std: "docker" "start" "-a" "4f1399fba6539667ecdfa8586740e4e265c1d7686951cce7f5804d63cf939556", kill_on_drop: false }`
[INFO] [stderr]     Checking gaggle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "4f1399fba6539667ecdfa8586740e4e265c1d7686951cce7f5804d63cf939556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f1399fba6539667ecdfa8586740e4e265c1d7686951cce7f5804d63cf939556", kill_on_drop: false }`
[INFO] [stdout] 4f1399fba6539667ecdfa8586740e4e265c1d7686951cce7f5804d63cf939556