Dec 03 14:16:25.280 INFO testing detour-0.5.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 14:16:25.280 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 14:16:25.649 INFO [stdout] 609d6857336457ec2da598e4192dd26b4cb94d1af27b82076cb879f08bda4881
Dec 03 14:16:25.651 INFO running `"docker" "start" "-a" "609d6857336457ec2da598e4192dd26b4cb94d1af27b82076cb879f08bda4881"`
Dec 03 14:16:26.220 INFO [stderr] usermod: no changes
Dec 03 14:16:26.323 INFO [stderr]    Compiling tap v0.2.1
Dec 03 14:16:26.323 INFO [stderr]    Compiling slice-pool v0.3.4
Dec 03 14:16:26.323 INFO [stderr]    Compiling libudis86-sys v0.2.0
Dec 03 14:16:26.331 INFO [stderr]    Compiling mmap-fixed v0.1.5
Dec 03 14:16:26.331 INFO [stderr]    Compiling generic-array v0.10.0
Dec 03 14:16:26.331 INFO [stderr]    Compiling region v0.3.0
Dec 03 14:16:32.507 INFO [stderr]    Compiling detour v0.5.0 (/source)
Dec 03 14:16:33.883 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 14:16:33.883 INFO [stderr]  --> src/lib.rs:2:34
Dec 03 14:16:33.883 INFO [stderr]   |
Dec 03 14:16:33.883 INFO [stderr] 2 | #![cfg_attr(feature = "nightly", feature(const_fn, unboxed_closures))]
Dec 03 14:16:33.883 INFO [stderr]   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 14:16:33.883 INFO [stderr] 
Dec 03 14:16:33.915 INFO [stderr] error: aborting due to previous error
Dec 03 14:16:33.915 INFO [stderr] 
Dec 03 14:16:33.915 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 14:16:33.925 INFO [stderr] error: Could not compile `detour`.
Dec 03 14:16:33.925 INFO [stderr] 
Dec 03 14:16:33.925 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 14:16:33.931 INFO [stderr] su: No module specific data is present
Dec 03 14:16:34.680 INFO running `"docker" "inspect" "609d6857336457ec2da598e4192dd26b4cb94d1af27b82076cb879f08bda4881"`
Dec 03 14:16:34.756 INFO running `"docker" "rm" "-f" "609d6857336457ec2da598e4192dd26b4cb94d1af27b82076cb879f08bda4881"`
Dec 03 14:16:34.977 INFO [stdout] 609d6857336457ec2da598e4192dd26b4cb94d1af27b82076cb879f08bda4881