[INFO] updating cached repository https://github.com/jorpic/rapl
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a33d0d44cc575349ff7b74013735940db4f9ebf4
[INFO] checking jorpic/rapl against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjorpic%2Frapl" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jorpic/rapl on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jorpic/rapl
[INFO] finished tweaking git repo https://github.com/jorpic/rapl
[INFO] tweaked toml for git repo https://github.com/jorpic/rapl written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jorpic/rapl already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 529adbd3aca841cab66c086d12051f152fcd774779d1bf84792fbc7432179ea9
[INFO] running `"docker" "start" "-a" "529adbd3aca841cab66c086d12051f152fcd774779d1bf84792fbc7432179ea9"`
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]    Compiling rustyline-derive v0.2.0
[INFO] [stderr]     Checking rustyline v5.0.3
[INFO] [stderr]     Checking rapl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0658]: use of unstable library feature 'is_sorted': new API
[INFO] [stderr]    --> src/main.rs:103:25
[INFO] [stderr]     |
[INFO] [stderr] 103 |         assert!(SYMBOLS.is_sorted_by_key(|t| t.0));
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #53485 <https://github.com/rust-lang/rust/issues/53485> for more information
[INFO] [stderr]     = help: add `#![feature(is_sorted)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: could not compile `rapl`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "529adbd3aca841cab66c086d12051f152fcd774779d1bf84792fbc7432179ea9"`
[INFO] running `"docker" "rm" "-f" "529adbd3aca841cab66c086d12051f152fcd774779d1bf84792fbc7432179ea9"`
[INFO] [stdout] 529adbd3aca841cab66c086d12051f152fcd774779d1bf84792fbc7432179ea9
