[INFO] fetching crate primal-tokio 0.1.0... [INFO] testing primal-tokio-0.1.0 against 1.44.0 for beta-1.45-1 [INFO] extracting crate primal-tokio 0.1.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate primal-tokio 0.1.0 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 primal-tokio 0.1.0 [INFO] finished tweaking crates.io crate primal-tokio 0.1.0 [INFO] tweaked toml for crates.io crate primal-tokio 0.1.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 20da5c8addcf040d89e05137723c514f96e6790ada9f6e21255d49de7beaf477 [INFO] running `"docker" "start" "-a" "20da5c8addcf040d89e05137723c514f96e6790ada9f6e21255d49de7beaf477"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling syn v1.0.30 [INFO] [stderr] Compiling hamming v0.1.3 [INFO] [stderr] Compiling primal-estimate v0.2.1 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling bytes v0.5.4 [INFO] [stderr] Compiling pin-project-lite v0.1.7 [INFO] [stderr] Compiling futures-core v0.3.5 [INFO] [stderr] Compiling primal-bit v0.2.4 [INFO] [stderr] Compiling smallvec v0.6.13 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling primal-sieve v0.2.9 [INFO] [stderr] Compiling quote v1.0.6 [INFO] [stderr] Compiling primal-check v0.2.3 [INFO] [stderr] Compiling primal v0.2.3 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Compiling tokio v0.2.21 [INFO] [stderr] Compiling primal-tokio v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(async_closure)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(type_ascription)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `primal-tokio`. [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" "20da5c8addcf040d89e05137723c514f96e6790ada9f6e21255d49de7beaf477"` [INFO] running `"docker" "rm" "-f" "20da5c8addcf040d89e05137723c514f96e6790ada9f6e21255d49de7beaf477"` [INFO] [stdout] 20da5c8addcf040d89e05137723c514f96e6790ada9f6e21255d49de7beaf477