[INFO] crate swc_ecma_transforms 0.9.0 is already in cache
[INFO] testing swc_ecma_transforms-0.9.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate swc_ecma_transforms 0.9.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate swc_ecma_transforms 0.9.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate swc_ecma_transforms 0.9.0
[INFO] finished tweaking crates.io crate swc_ecma_transforms 0.9.0
[INFO] tweaked toml for crates.io crate swc_ecma_transforms 0.9.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2020-06-03" "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] 4b6c24b1f9e1b01419c609757198b97df5192fcf570d519d894aceac244195f5
[INFO] running `"docker" "start" "-a" "4b6c24b1f9e1b01419c609757198b97df5192fcf570d519d894aceac244195f5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling if_chain v0.1.3
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling ahash v0.3.5
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling dashmap v3.5.1
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling swc_atoms v0.2.2
[INFO] [stderr]    Compiling pmutil v0.5.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling swc_macros_common v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling from_variant v0.1.2
[INFO] [stderr]    Compiling string_enum v0.3.0
[INFO] [stderr]    Compiling enum_kind v0.2.0
[INFO] [stderr]    Compiling swc_ecma_parser_macros v0.4.1
[INFO] [stderr]    Compiling is-macro v0.1.8
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling ast_node v0.6.0
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling sourcemap v5.0.0
[INFO] [stderr]    Compiling swc_common v0.5.12
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/swc_common-0.5.12/src/lib.rs:1:31
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(feature = "fold", feature(specialization))]
[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 `swc_common`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4b6c24b1f9e1b01419c609757198b97df5192fcf570d519d894aceac244195f5"`
[INFO] running `"docker" "rm" "-f" "4b6c24b1f9e1b01419c609757198b97df5192fcf570d519d894aceac244195f5"`
[INFO] [stdout] 4b6c24b1f9e1b01419c609757198b97df5192fcf570d519d894aceac244195f5