[INFO] crate geml 1.1.26 is already in cache
[INFO] testing geml-1.1.26 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate geml 1.1.26 into work/builds/worker-5/source
[INFO] validating manifest of crates.io crate geml 1.1.26 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate geml 1.1.26
[INFO] finished tweaking crates.io crate geml 1.1.26
[INFO] tweaked toml for crates.io crate geml 1.1.26 written to work/builds/worker-5/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 309f0e3adae9a02e2ec04e65486c1ba5ae0b609ce0d6ba2c9e1a037e0acb45bf
[INFO] running `"docker" "start" "-a" "309f0e3adae9a02e2ec04e65486c1ba5ae0b609ce0d6ba2c9e1a037e0acb45bf"`
[INFO] [stderr]    Compiling geml v1.1.26 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `cap`
[INFO] [stderr]    --> src/markdown/mod.rs:107:18
[INFO] [stderr]     |
[INFO] [stderr] 107 | fn rule_replacer(cap: &Captures) -> String {
[INFO] [stderr]     |                  ^^^ help: consider prefixing with an underscore: `_cap`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/bin/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(duration_as_u128)]
[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 `geml`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "309f0e3adae9a02e2ec04e65486c1ba5ae0b609ce0d6ba2c9e1a037e0acb45bf"`
[INFO] running `"docker" "rm" "-f" "309f0e3adae9a02e2ec04e65486c1ba5ae0b609ce0d6ba2c9e1a037e0acb45bf"`
[INFO] [stdout] 309f0e3adae9a02e2ec04e65486c1ba5ae0b609ce0d6ba2c9e1a037e0acb45bf