[INFO] fetching crate fastfield_codecs 0.3.1...
[INFO] checking fastfield_codecs-0.3.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate fastfield_codecs 0.3.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate fastfield_codecs 0.3.1
[INFO] finished tweaking crates.io crate fastfield_codecs 0.3.1
[INFO] tweaked toml for crates.io crate fastfield_codecs 0.3.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fastfield_codecs 0.3.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fastfield_codecs 0.3.1 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1430657efd315894be3e1f0cabb8a552471ad2c3051788136d63a93dbfa74219
[INFO] running `Command { std: "docker" "start" "-a" "1430657efd315894be3e1f0cabb8a552471ad2c3051788136d63a93dbfa74219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1430657efd315894be3e1f0cabb8a552471ad2c3051788136d63a93dbfa74219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1430657efd315894be3e1f0cabb8a552471ad2c3051788136d63a93dbfa74219", kill_on_drop: false }`
[INFO] [stdout] 1430657efd315894be3e1f0cabb8a552471ad2c3051788136d63a93dbfa74219
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0ca14d3aa8ab99131cceace014a3bfdee39c87d5ae4560f6239e6b705ffb350
[INFO] running `Command { std: "docker" "start" "-a" "a0ca14d3aa8ab99131cceace014a3bfdee39c87d5ae4560f6239e6b705ffb350", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.152
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[INFO] [stderr]     Checking fastfield_codecs v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated constant `CODEC_TYPE` is never used
[INFO] [stdout]    --> src/lib.rs:189:11
[INFO] [stdout]     |
[INFO] [stdout] 186 | trait FastFieldCodec: 'static {
[INFO] [stdout]     |       -------------- associated constant in this trait
[INFO] [stdout] ...
[INFO] [stdout] 189 |     const CODEC_TYPE: FastFieldCodecType;
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.88s
[INFO] running `Command { std: "docker" "inspect" "a0ca14d3aa8ab99131cceace014a3bfdee39c87d5ae4560f6239e6b705ffb350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0ca14d3aa8ab99131cceace014a3bfdee39c87d5ae4560f6239e6b705ffb350", kill_on_drop: false }`
[INFO] [stdout] a0ca14d3aa8ab99131cceace014a3bfdee39c87d5ae4560f6239e6b705ffb350