[INFO] updating cached repository staktrace/t_est
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/staktrace/t_est
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/staktrace/t_est" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/staktrace/t_est"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/staktrace/t_est'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/staktrace/t_est" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/staktrace/t_est"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/staktrace/t_est'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a2a8a431599fb47f1ba338c26ae60be7f9448470
[INFO] sha for GitHub repo staktrace/t_est: a2a8a431599fb47f1ba338c26ae60be7f9448470
[INFO] validating manifest of staktrace/t_est on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of staktrace/t_est on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing staktrace/t_est
[INFO] finished frobbing staktrace/t_est
[INFO] frobbed toml for staktrace/t_est written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/staktrace/t_est/Cargo.toml
[INFO] started frobbing staktrace/t_est
[INFO] finished frobbing staktrace/t_est
[INFO] frobbed toml for staktrace/t_est written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/staktrace/t_est/Cargo.toml
[INFO] crate staktrace/t_est already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking staktrace/t_est against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-5/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/staktrace/t_est:/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=forbid" "-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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 61d69bbf328bb2ede9a19fe6031154db08b659d8944d1fe20eb158fbddc5f0ef
[INFO] running `"docker" "start" "-a" "61d69bbf328bb2ede9a19fe6031154db08b659d8944d1fe20eb158fbddc5f0ef"`
[INFO] [stderr]     Checking t_est v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: enum variants on type aliases are experimental
[INFO] [stderr]  --> src/main.rs:9:22
[INFO] [stderr]   |
[INFO] [stderr] 9 |     println!("{:?}", MainEnum::One);    // This fails
[INFO] [stderr]   |                      ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(type_alias_enum_variants)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `t_est`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: enum variants on type aliases are experimental
[INFO] [stderr]  --> src/main.rs:9:22
[INFO] [stderr]   |
[INFO] [stderr] 9 |     println!("{:?}", MainEnum::One);    // This fails
[INFO] [stderr]   |                      ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: add `#![feature(type_alias_enum_variants)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `t_est`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "61d69bbf328bb2ede9a19fe6031154db08b659d8944d1fe20eb158fbddc5f0ef"`
[INFO] running `"docker" "rm" "-f" "61d69bbf328bb2ede9a19fe6031154db08b659d8944d1fe20eb158fbddc5f0ef"`
[INFO] [stdout] 61d69bbf328bb2ede9a19fe6031154db08b659d8944d1fe20eb158fbddc5f0ef