[INFO] crate encoding-index-singlebyte 1.20141219.5 is already in cache
[INFO] testing encoding-index-singlebyte-1.20141219.5 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate encoding-index-singlebyte 1.20141219.5 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate encoding-index-singlebyte 1.20141219.5 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 encoding-index-singlebyte 1.20141219.5
[INFO] removed path dependency encoding_index_tests from crates.io crate encoding-index-singlebyte 1.20141219.5
[INFO] finished tweaking crates.io crate encoding-index-singlebyte 1.20141219.5
[INFO] tweaked toml for crates.io crate encoding-index-singlebyte 1.20141219.5 written to /workspace/builds/worker-14/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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 8be7669f198077ea8b0f5e30ececf7c96bbb94357b974e8c7238cf14246a2209
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "8be7669f198077ea8b0f5e30ececf7c96bbb94357b974e8c7238cf14246a2209"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "8be7669f198077ea8b0f5e30ececf7c96bbb94357b974e8c7238cf14246a2209"`
[INFO] running `"docker" "rm" "-f" "8be7669f198077ea8b0f5e30ececf7c96bbb94357b974e8c7238cf14246a2209"`
[INFO] [stdout] 8be7669f198077ea8b0f5e30ececf7c96bbb94357b974e8c7238cf14246a2209
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 12dd8732a0f3bf4cbf0e56e5fa0ba29204f92e7f3ed9b0489d447381f42fb9f5
[INFO] running `"docker" "start" "-a" "12dd8732a0f3bf4cbf0e56e5fa0ba29204f92e7f3ed9b0489d447381f42fb9f5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> lib.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![cfg_attr(test, feature(test))]
[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 `encoding-index-singlebyte`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "12dd8732a0f3bf4cbf0e56e5fa0ba29204f92e7f3ed9b0489d447381f42fb9f5"`
[INFO] running `"docker" "rm" "-f" "12dd8732a0f3bf4cbf0e56e5fa0ba29204f92e7f3ed9b0489d447381f42fb9f5"`
[INFO] [stdout] 12dd8732a0f3bf4cbf0e56e5fa0ba29204f92e7f3ed9b0489d447381f42fb9f5