[INFO] updating cached repository https://github.com/keriwarr/cryptopals
[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] 02b47662db7489b7ae65c74af37ca4ea2af46c6e
[INFO] testing keriwarr/cryptopals against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeriwarr%2Fcryptopals" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/keriwarr/cryptopals 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 git repo https://github.com/keriwarr/cryptopals
[INFO] finished tweaking git repo https://github.com/keriwarr/cryptopals
[INFO] tweaked toml for git repo https://github.com/keriwarr/cryptopals written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/keriwarr/cryptopals already has a lockfile, it will not be regenerated
[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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 40f857ba39e2df16747982ad146117f50f83c86307b605115341624fada9a996
[INFO] running `"docker" "start" "-a" "40f857ba39e2df16747982ad146117f50f83c86307b605115341624fada9a996"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(str_escape)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/byte_stream.rs:654:5
[INFO] [stderr]     |
[INFO] [stderr] 654 | /     (if c >= 'A' && c <= 'Z' {
[INFO] [stderr] 655 | |         Some(c as u8 - 65)
[INFO] [stderr] 656 | |     } else if c >= 'a' && c <= 'z' {
[INFO] [stderr] 657 | |         Some(c as u8 - 71)
[INFO] [stderr] ...   |
[INFO] [stderr] 665 | |         None
[INFO] [stderr] 666 | |     })
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 654 |     if c >= 'A' && c <= 'Z' {
[INFO] [stderr] 655 |         Some(c as u8 - 65)
[INFO] [stderr] 656 |     } else if c >= 'a' && c <= 'z' {
[INFO] [stderr] 657 |         Some(c as u8 - 71)
[INFO] [stderr] 658 |     } else if c >= '0' && c <= '9' {
[INFO] [stderr] 659 |         Some(c as u8 + 4)
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `cryptopals`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "40f857ba39e2df16747982ad146117f50f83c86307b605115341624fada9a996"`
[INFO] running `"docker" "rm" "-f" "40f857ba39e2df16747982ad146117f50f83c86307b605115341624fada9a996"`
[INFO] [stdout] 40f857ba39e2df16747982ad146117f50f83c86307b605115341624fada9a996