[INFO] fetching crate alive_alter 0.1.4...
[INFO] checking alive_alter-0.1.4 against 1.95.0 for pr-155915
[INFO] extracting crate alive_alter 0.1.4 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate alive_alter 0.1.4
[INFO] finished tweaking crates.io crate alive_alter 0.1.4
[INFO] tweaked toml for crates.io crate alive_alter 0.1.4 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate alive_alter 0.1.4 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 70 packages to latest compatible versions
[INFO] [stderr]       Adding const-str v0.5.7 (available: v1.1.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded xerr v0.1.16
[INFO] [stderr]   Downloaded sts v0.1.23
[INFO] [stderr]   Downloaded wasix v0.13.1
[INFO] [stderr]   Downloaded coarsetime v0.1.37
[INFO] [stderr]   Downloaded aok v0.1.18
[INFO] [stderr]   Downloaded ifs v0.1.47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7cc6068c2272f1ec8b135801c7ef4ad6acdc7527595f60268832aecb2620c845
[INFO] running `Command { std: "docker" "start" "-a" "7cc6068c2272f1ec8b135801c7ef4ad6acdc7527595f60268832aecb2620c845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cc6068c2272f1ec8b135801c7ef4ad6acdc7527595f60268832aecb2620c845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cc6068c2272f1ec8b135801c7ef4ad6acdc7527595f60268832aecb2620c845", kill_on_drop: false }`
[INFO] [stdout] 7cc6068c2272f1ec8b135801c7ef4ad6acdc7527595f60268832aecb2620c845
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] de3dcf86200bdb85444b6f615971e4397e8e31dd3b1782c6163eec49546030ba
[INFO] running `Command { std: "docker" "start" "-a" "de3dcf86200bdb85444b6f615971e4397e8e31dd3b1782c6163eec49546030ba", kill_on_drop: false }`
[INFO] [stderr]     Checking typenum v1.20.0
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]     Checking xerr v0.1.16
[INFO] [stderr]     Checking aok v0.1.18
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]     Checking pipe v0.4.0
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking coarsetime v0.1.37
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking sts v0.1.23
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.7
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking ifs v0.1.47
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ifs-0.1.47/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(doc_cfg)]
[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 `ifs` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "de3dcf86200bdb85444b6f615971e4397e8e31dd3b1782c6163eec49546030ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de3dcf86200bdb85444b6f615971e4397e8e31dd3b1782c6163eec49546030ba", kill_on_drop: false }`
[INFO] [stdout] de3dcf86200bdb85444b6f615971e4397e8e31dd3b1782c6163eec49546030ba
