[INFO] fetching crate dm_x 0.2.3...
[INFO] testing dm_x-0.2.3 against 1.69.0 for beta-1.70-1
[INFO] extracting crate dm_x 0.2.3 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate dm_x 0.2.3 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dm_x 0.2.3
[INFO] finished tweaking crates.io crate dm_x 0.2.3
[INFO] tweaked toml for crates.io crate dm_x 0.2.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate dm_x 0.2.3 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b877c0c4535f97f69e2b8e02e22f7b6dd8d6ff0a16e12368a7faba57a12300e
[INFO] running `Command { std: "docker" "start" "-a" "3b877c0c4535f97f69e2b8e02e22f7b6dd8d6ff0a16e12368a7faba57a12300e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b877c0c4535f97f69e2b8e02e22f7b6dd8d6ff0a16e12368a7faba57a12300e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b877c0c4535f97f69e2b8e02e22f7b6dd8d6ff0a16e12368a7faba57a12300e", kill_on_drop: false }`
[INFO] [stdout] 3b877c0c4535f97f69e2b8e02e22f7b6dd8d6ff0a16e12368a7faba57a12300e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62d1fff3969bcacdac51c2dd38defd03e3ab683c81bf0177d73ad45f01ac9009
[INFO] running `Command { std: "docker" "start" "-a" "62d1fff3969bcacdac51c2dd38defd03e3ab683c81bf0177d73ad45f01ac9009", kill_on_drop: false }`
[INFO] [stderr]    Compiling dm_x v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:97:1
[INFO] [stdout]    |
[INFO] [stdout] 97 | #![feature(doc_cfg)]
[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 `dm_x` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "62d1fff3969bcacdac51c2dd38defd03e3ab683c81bf0177d73ad45f01ac9009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62d1fff3969bcacdac51c2dd38defd03e3ab683c81bf0177d73ad45f01ac9009", kill_on_drop: false }`
[INFO] [stdout] 62d1fff3969bcacdac51c2dd38defd03e3ab683c81bf0177d73ad45f01ac9009
