[INFO] crate apis 0.4.3 is already in cache [INFO] testing apis-0.4.3 against 1.44.0 for beta-1.45-1 [INFO] extracting crate apis 0.4.3 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate apis 0.4.3 on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate apis 0.4.3 [INFO] finished tweaking crates.io crate apis 0.4.3 [INFO] tweaked toml for crates.io crate apis 0.4.3 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 59d494d4709f4115b3e43e855a363ca0980eeb61246330307f676846070f15e5 [INFO] running `"docker" "start" "-a" "59d494d4709f4115b3e43e855a363ca0980eeb61246330307f676846070f15e5"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling marksman_escape v0.1.2 [INFO] [stderr] Compiling bounded-spsc-queue v0.4.0 [INFO] [stderr] Compiling enum_derive v0.1.7 [INFO] [stderr] Compiling macro-attr v0.2.0 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling colored v1.9.3 [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bounded-spsc-queue-0.4.0/src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(allocator_api)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `bounded-spsc-queue`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "59d494d4709f4115b3e43e855a363ca0980eeb61246330307f676846070f15e5"` [INFO] running `"docker" "rm" "-f" "59d494d4709f4115b3e43e855a363ca0980eeb61246330307f676846070f15e5"` [INFO] [stdout] 59d494d4709f4115b3e43e855a363ca0980eeb61246330307f676846070f15e5