[INFO] fetching crate expire_map 0.0.34...
[INFO] testing expire_map-0.0.34 against 1.90.0 for beta-1.91-3
[INFO] extracting crate expire_map 0.0.34 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate expire_map 0.0.34
[INFO] finished tweaking crates.io crate expire_map 0.0.34
[INFO] tweaked toml for crates.io crate expire_map 0.0.34 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate expire_map 0.0.34 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate expire_map 0.0.34 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.58
[INFO] [stderr]   Downloaded array-macro v2.1.5
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.31
[INFO] [stderr]   Downloaded dashmap v5.3.4
[INFO] [stderr]   Downloaded concurrent-queue v1.2.2
[INFO] [stderr]   Downloaded event-listener v2.5.2
[INFO] [stderr]   Downloaded async-process v1.4.0
[INFO] [stderr]   Downloaded ctor v0.1.22
[INFO] [stderr]   Downloaded async-channel v1.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6f3ebd953dfbe79b85fba9906110fac65ca3117d4d381516d70697fa794e492
[INFO] running `Command { std: "docker" "start" "-a" "e6f3ebd953dfbe79b85fba9906110fac65ca3117d4d381516d70697fa794e492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6f3ebd953dfbe79b85fba9906110fac65ca3117d4d381516d70697fa794e492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6f3ebd953dfbe79b85fba9906110fac65ca3117d4d381516d70697fa794e492", kill_on_drop: false }`
[INFO] [stdout] e6f3ebd953dfbe79b85fba9906110fac65ca3117d4d381516d70697fa794e492
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc081e5400908e03dfa1297cb4f8ae4b7e96ce8febf22cc78660e9748967db16
[INFO] running `Command { std: "docker" "start" "-a" "dc081e5400908e03dfa1297cb4f8ae4b7e96ce8febf22cc78660e9748967db16", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.9.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling array-macro v2.1.5
[INFO] [stderr]    Compiling dashmap v5.3.4
[INFO] [stderr]    Compiling expire_map v0.0.34 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(trait_alias)]
[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 `expire_map` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "dc081e5400908e03dfa1297cb4f8ae4b7e96ce8febf22cc78660e9748967db16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc081e5400908e03dfa1297cb4f8ae4b7e96ce8febf22cc78660e9748967db16", kill_on_drop: false }`
[INFO] [stdout] dc081e5400908e03dfa1297cb4f8ae4b7e96ce8febf22cc78660e9748967db16