[INFO] fetching crate flatten_structs 0.1.0...
[INFO] checking flatten_structs-0.1.0 against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] extracting crate flatten_structs 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate flatten_structs 0.1.0
[INFO] finished tweaking crates.io crate flatten_structs 0.1.0
[INFO] tweaked toml for crates.io crate flatten_structs 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flatten_structs 0.1.0 on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flatten_structs 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" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87eb92848664c23805605dd28d864fa809d796501224ef4709f25763527cecb9
[INFO] running `Command { std: "docker" "start" "-a" "87eb92848664c23805605dd28d864fa809d796501224ef4709f25763527cecb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87eb92848664c23805605dd28d864fa809d796501224ef4709f25763527cecb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87eb92848664c23805605dd28d864fa809d796501224ef4709f25763527cecb9", kill_on_drop: false }`
[INFO] [stdout] 87eb92848664c23805605dd28d864fa809d796501224ef4709f25763527cecb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b94da9967c52a3aaac7c3003e8ee0825d3de7814a8c34ed8826775612e9f96e7
[INFO] running `Command { std: "docker" "start" "-a" "b94da9967c52a3aaac7c3003e8ee0825d3de7814a8c34ed8826775612e9f96e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking pretty_assertions v1.4.1
[INFO] [stderr]     Checking flatten_structs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.84s
[INFO] running `Command { std: "docker" "inspect" "b94da9967c52a3aaac7c3003e8ee0825d3de7814a8c34ed8826775612e9f96e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b94da9967c52a3aaac7c3003e8ee0825d3de7814a8c34ed8826775612e9f96e7", kill_on_drop: false }`
[INFO] [stdout] b94da9967c52a3aaac7c3003e8ee0825d3de7814a8c34ed8826775612e9f96e7