[INFO] fetching crate purple 0.0.1-placeholder...
[INFO] checking purple-0.0.1-placeholder against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate purple 0.0.1-placeholder into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate purple 0.0.1-placeholder on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate purple 0.0.1-placeholder
[INFO] finished tweaking crates.io crate purple 0.0.1-placeholder
[INFO] tweaked toml for crates.io crate purple 0.0.1-placeholder written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate purple 0.0.1-placeholder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37c939a5a349deaca1e9726e5c1d83577ab23cd43991e48227278ddd7c55716a
[INFO] running `Command { std: "docker" "start" "-a" "37c939a5a349deaca1e9726e5c1d83577ab23cd43991e48227278ddd7c55716a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37c939a5a349deaca1e9726e5c1d83577ab23cd43991e48227278ddd7c55716a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c939a5a349deaca1e9726e5c1d83577ab23cd43991e48227278ddd7c55716a", kill_on_drop: false }`
[INFO] [stdout] 37c939a5a349deaca1e9726e5c1d83577ab23cd43991e48227278ddd7c55716a
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ba7857893ed29e46e0f177d5e2a48cad59ec38f0d0eda0c432e44f79f53f0c8
[INFO] running `Command { std: "docker" "start" "-a" "1ba7857893ed29e46e0f177d5e2a48cad59ec38f0d0eda0c432e44f79f53f0c8", kill_on_drop: false }`
[INFO] [stderr]     Checking purple v0.0.1-placeholder (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "1ba7857893ed29e46e0f177d5e2a48cad59ec38f0d0eda0c432e44f79f53f0c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba7857893ed29e46e0f177d5e2a48cad59ec38f0d0eda0c432e44f79f53f0c8", kill_on_drop: false }`
[INFO] [stdout] 1ba7857893ed29e46e0f177d5e2a48cad59ec38f0d0eda0c432e44f79f53f0c8