[INFO] crate cuid 0.1.0 is already in cache
[INFO] extracting crate cuid 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/cuid/0.1.0
[INFO] extracting crate cuid 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cuid/0.1.0
[INFO] validating manifest of cuid-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cuid-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cuid-0.1.0
[INFO] finished frobbing cuid-0.1.0
[INFO] frobbed toml for cuid-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/cuid/0.1.0/Cargo.toml
[INFO] started frobbing cuid-0.1.0
[INFO] finished frobbing cuid-0.1.0
[INFO] frobbed toml for cuid-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cuid/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing cuid-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/cuid/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b5133a5396172d852872fbcc44596b72da8f4aebd52ab22a46cb088cf63539b8
[INFO] running `"docker" "start" "-a" "b5133a5396172d852872fbcc44596b72da8f4aebd52ab22a46cb088cf63539b8"`
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling cuid v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(test)]  // used for benchmarking
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(no_more_cas)]  // used by counter
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/lib.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::sync::atomic::{ATOMIC_USIZE_INIT, AtomicUsize};
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lib.rs:24:31
[INFO] [stderr]    |
[INFO] [stderr] 24 | static COUNTER: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `cuid`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b5133a5396172d852872fbcc44596b72da8f4aebd52ab22a46cb088cf63539b8"`
[INFO] running `"docker" "rm" "-f" "b5133a5396172d852872fbcc44596b72da8f4aebd52ab22a46cb088cf63539b8"`
[INFO] [stdout] b5133a5396172d852872fbcc44596b72da8f4aebd52ab22a46cb088cf63539b8