[INFO] fetching crate fastfield_codecs 0.3.1...
[INFO] checking fastfield_codecs-0.3.1 against 1.95.0 for pr-155915
[INFO] extracting crate fastfield_codecs 0.3.1 into /workspace/builds/worker-0-tc1/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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fastfield_codecs 0.3.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fastdivide v0.4.0
[INFO] [stderr]   Downloaded tantivy-bitpacker v0.3.0
[INFO] [stderr]   Downloaded measure_time v0.8.2
[INFO] [stderr]   Downloaded tantivy-common v0.4.0
[INFO] [stderr]   Downloaded prettytable-rs v0.9.0
[INFO] [stderr]   Downloaded ownedbytes v0.4.0
[INFO] [stderr]   Downloaded proptest v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d01a1c6656f927fb7b26fa8e434e61a385ad347bfa78787b0ce1b0e3cec862f2
[INFO] running `Command { std: "docker" "start" "-a" "d01a1c6656f927fb7b26fa8e434e61a385ad347bfa78787b0ce1b0e3cec862f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d01a1c6656f927fb7b26fa8e434e61a385ad347bfa78787b0ce1b0e3cec862f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d01a1c6656f927fb7b26fa8e434e61a385ad347bfa78787b0ce1b0e3cec862f2", kill_on_drop: false }`
[INFO] [stdout] d01a1c6656f927fb7b26fa8e434e61a385ad347bfa78787b0ce1b0e3cec862f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e41f951e5116f8bf191c352cb2468dbb45e6929eaffc9d3353eb89220105ca1
[INFO] running `Command { std: "docker" "start" "-a" "7e41f951e5116f8bf191c352cb2468dbb45e6929eaffc9d3353eb89220105ca1", 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
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking encode_unicode v1.0.0
[INFO] [stderr]     Checking ownedbytes v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking fastdivide v0.4.0
[INFO] [stderr]     Checking tantivy-bitpacker v0.3.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking measure_time v0.8.2
[INFO] [stderr]     Checking tantivy-common v0.4.0
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking proptest v1.0.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking prettytable-rs v0.9.0
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/bench.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fastfield_codecs` (bench "bench") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7e41f951e5116f8bf191c352cb2468dbb45e6929eaffc9d3353eb89220105ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e41f951e5116f8bf191c352cb2468dbb45e6929eaffc9d3353eb89220105ca1", kill_on_drop: false }`
[INFO] [stdout] 7e41f951e5116f8bf191c352cb2468dbb45e6929eaffc9d3353eb89220105ca1
