[INFO] fetching crate dacquiri_derive 0.4.0...
[INFO] testing dacquiri_derive-0.4.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate dacquiri_derive 0.4.0 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate dacquiri_derive 0.4.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dacquiri_derive 0.4.0
[INFO] finished tweaking crates.io crate dacquiri_derive 0.4.0
[INFO] tweaked toml for crates.io crate dacquiri_derive 0.4.0 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23dda1f7cf7bf1fc12f1f7028dab28253b1140a4c78da0eaf92625d613ea5a2c
[INFO] running `Command { std: "docker" "start" "-a" "23dda1f7cf7bf1fc12f1f7028dab28253b1140a4c78da0eaf92625d613ea5a2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23dda1f7cf7bf1fc12f1f7028dab28253b1140a4c78da0eaf92625d613ea5a2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23dda1f7cf7bf1fc12f1f7028dab28253b1140a4c78da0eaf92625d613ea5a2c", kill_on_drop: false }`
[INFO] [stdout] 23dda1f7cf7bf1fc12f1f7028dab28253b1140a4c78da0eaf92625d613ea5a2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9adf1cce7109e532abdff729c70899ee92a42935c289c9ad26aa817bc8a3ed2
[INFO] running `Command { std: "docker" "start" "-a" "c9adf1cce7109e532abdff729c70899ee92a42935c289c9ad26aa817bc8a3ed2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling dacquiri_derive v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(adt_const_params)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dacquiri_derive` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c9adf1cce7109e532abdff729c70899ee92a42935c289c9ad26aa817bc8a3ed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9adf1cce7109e532abdff729c70899ee92a42935c289c9ad26aa817bc8a3ed2", kill_on_drop: false }`
[INFO] [stdout] c9adf1cce7109e532abdff729c70899ee92a42935c289c9ad26aa817bc8a3ed2