[INFO] fetching crate unreal_rust_compile_demo 0.1.0...
[INFO] building unreal_rust_compile_demo-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate unreal_rust_compile_demo 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate unreal_rust_compile_demo 0.1.0
[INFO] finished tweaking crates.io crate unreal_rust_compile_demo 0.1.0
[INFO] tweaked toml for crates.io crate unreal_rust_compile_demo 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unreal_rust_compile_demo 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unreal_rust_compile_demo 0.1.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f9ba15fc6b2aca2ca1f49676dc1869565e22e3e65f9ecd0bd0908f0690c54cc
[INFO] running `Command { std: "docker" "start" "-a" "3f9ba15fc6b2aca2ca1f49676dc1869565e22e3e65f9ecd0bd0908f0690c54cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f9ba15fc6b2aca2ca1f49676dc1869565e22e3e65f9ecd0bd0908f0690c54cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f9ba15fc6b2aca2ca1f49676dc1869565e22e3e65f9ecd0bd0908f0690c54cc", kill_on_drop: false }`
[INFO] [stdout] 3f9ba15fc6b2aca2ca1f49676dc1869565e22e3e65f9ecd0bd0908f0690c54cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 614bff099c3f0f4d45b0eab5f89e160e151589c944b23ed8096254135b15e636
[INFO] running `Command { std: "docker" "start" "-a" "614bff099c3f0f4d45b0eab5f89e160e151589c944b23ed8096254135b15e636", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling cbindgen v0.12.1
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling toml v0.5.5
[INFO] [stderr]    Compiling unreal_rust_compile_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.04s
[INFO] running `Command { std: "docker" "inspect" "614bff099c3f0f4d45b0eab5f89e160e151589c944b23ed8096254135b15e636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "614bff099c3f0f4d45b0eab5f89e160e151589c944b23ed8096254135b15e636", kill_on_drop: false }`
[INFO] [stdout] 614bff099c3f0f4d45b0eab5f89e160e151589c944b23ed8096254135b15e636
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 670fd2983a61b40b7fc9d1900fc8c34bbc664e5e57a2430e9b4edb4fc6f91ea2
[INFO] running `Command { std: "docker" "start" "-a" "670fd2983a61b40b7fc9d1900fc8c34bbc664e5e57a2430e9b4edb4fc6f91ea2", kill_on_drop: false }`
[INFO] [stderr]    Compiling unreal_rust_compile_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "670fd2983a61b40b7fc9d1900fc8c34bbc664e5e57a2430e9b4edb4fc6f91ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "670fd2983a61b40b7fc9d1900fc8c34bbc664e5e57a2430e9b4edb4fc6f91ea2", kill_on_drop: false }`
[INFO] [stdout] 670fd2983a61b40b7fc9d1900fc8c34bbc664e5e57a2430e9b4edb4fc6f91ea2