[INFO] updating cached repository aleozlx/wednesday-blah
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aleozlx/wednesday-blah
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aleozlx/wednesday-blah" "work/ex/beta-1.38-1/sources/1.37.0/gh/aleozlx/wednesday-blah"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aleozlx/wednesday-blah'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aleozlx/wednesday-blah" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aleozlx/wednesday-blah"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aleozlx/wednesday-blah'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a82fe3dd572d3f37a7dc7762464703396d4c313a
[INFO] sha for GitHub repo aleozlx/wednesday-blah: a82fe3dd572d3f37a7dc7762464703396d4c313a
[INFO] validating manifest of aleozlx/wednesday-blah 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 aleozlx/wednesday-blah 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 aleozlx/wednesday-blah
[INFO] finished frobbing aleozlx/wednesday-blah
[INFO] frobbed toml for aleozlx/wednesday-blah written to work/ex/beta-1.38-1/sources/1.37.0/gh/aleozlx/wednesday-blah/Cargo.toml
[INFO] started frobbing aleozlx/wednesday-blah
[INFO] finished frobbing aleozlx/wednesday-blah
[INFO] frobbed toml for aleozlx/wednesday-blah written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aleozlx/wednesday-blah/Cargo.toml
[INFO] crate aleozlx/wednesday-blah already has a lockfile, it will not be regenerated
[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 aleozlx/wednesday-blah against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aleozlx/wednesday-blah:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 2a3ee98d3a8e93d42aa4ee44d5dce846be4ab7679578a8ba4f6036d5cd584097
[INFO] running `"docker" "start" "-a" "2a3ee98d3a8e93d42aa4ee44d5dce846be4ab7679578a8ba4f6036d5cd584097"`
[INFO] [stderr]    Compiling arrayvec v0.4.9
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling num_cpus v1.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling blah v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(core_intrinsics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:3:2
[INFO] [stderr]   |
[INFO] [stderr] 3 |  #![feature(extern_crate_item_prelude)]
[INFO] [stderr]   |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `blah`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2a3ee98d3a8e93d42aa4ee44d5dce846be4ab7679578a8ba4f6036d5cd584097"`
[INFO] running `"docker" "rm" "-f" "2a3ee98d3a8e93d42aa4ee44d5dce846be4ab7679578a8ba4f6036d5cd584097"`
[INFO] [stdout] 2a3ee98d3a8e93d42aa4ee44d5dce846be4ab7679578a8ba4f6036d5cd584097