[INFO] fetching crate field_names 0.2.0...
[INFO] checking field_names-0.2.0 against try#a3dffdb3a32d0dedc198f9de7d43173f3eb6727b for pr-136303
[INFO] extracting crate field_names 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate field_names 0.2.0 on toolchain a3dffdb3a32d0dedc198f9de7d43173f3eb6727b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate field_names 0.2.0
[INFO] finished tweaking crates.io crate field_names 0.2.0
[INFO] tweaked toml for crates.io crate field_names 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate field_names 0.2.0 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" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d2d4a5c4c0d0f09efff29f1267c1ee3588b69cdbdda00bd6df3e5d460498a4f
[INFO] running `Command { std: "docker" "start" "-a" "2d2d4a5c4c0d0f09efff29f1267c1ee3588b69cdbdda00bd6df3e5d460498a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d2d4a5c4c0d0f09efff29f1267c1ee3588b69cdbdda00bd6df3e5d460498a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d2d4a5c4c0d0f09efff29f1267c1ee3588b69cdbdda00bd6df3e5d460498a4f", kill_on_drop: false }`
[INFO] [stdout] 2d2d4a5c4c0d0f09efff29f1267c1ee3588b69cdbdda00bd6df3e5d460498a4f
[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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64317a0e33ce178d00cbeef24505663ae6a9651466d3a9b4a88b62b7ed2a3dc0
[INFO] running `Command { std: "docker" "start" "-a" "64317a0e33ce178d00cbeef24505663ae6a9651466d3a9b4a88b62b7ed2a3dc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking quote v1.0.14
[INFO] [stderr]     Checking darling_core v0.13.1
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]     Checking darling v0.13.1
[INFO] [stderr]     Checking field_names v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "64317a0e33ce178d00cbeef24505663ae6a9651466d3a9b4a88b62b7ed2a3dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64317a0e33ce178d00cbeef24505663ae6a9651466d3a9b4a88b62b7ed2a3dc0", kill_on_drop: false }`
[INFO] [stdout] 64317a0e33ce178d00cbeef24505663ae6a9651466d3a9b4a88b62b7ed2a3dc0