[INFO] updating cached repository Ryan1729/stru
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Ryan1729/stru
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Ryan1729/stru" "work/ex/beta-1.38-1/sources/1.37.0/gh/Ryan1729/stru"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Ryan1729/stru'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Ryan1729/stru" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ryan1729/stru"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ryan1729/stru'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 90178bbfabd23bf881b8fcd1ebbd8d85d57ae793
[INFO] sha for GitHub repo Ryan1729/stru: 90178bbfabd23bf881b8fcd1ebbd8d85d57ae793
[INFO] validating manifest of Ryan1729/stru 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 Ryan1729/stru 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 Ryan1729/stru
[INFO] finished frobbing Ryan1729/stru
[INFO] frobbed toml for Ryan1729/stru written to work/ex/beta-1.38-1/sources/1.37.0/gh/Ryan1729/stru/Cargo.toml
[INFO] started frobbing Ryan1729/stru
[INFO] finished frobbing Ryan1729/stru
[INFO] frobbed toml for Ryan1729/stru written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ryan1729/stru/Cargo.toml
[INFO] crate Ryan1729/stru 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 Ryan1729/stru 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/gh/Ryan1729/stru:/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] 109b342204a87d713ddff54f7f48be96b0ea302b51f2329c544022f571666b24
[INFO] running `"docker" "start" "-a" "109b342204a87d713ddff54f7f48be96b0ea302b51f2329c544022f571666b24"`
[INFO] [stderr]    Compiling cmake v0.1.21
[INFO] [stderr]    Compiling stru v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.2
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]    Compiling errno v0.2.3
[INFO] [stderr]    Compiling x11 v2.12.1
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.3
[INFO] [stderr]    Compiling expat-sys v2.1.4
[INFO] [stderr]    Compiling servo-fontconfig v0.2.1
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(link_args)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(drop_types_in_const)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `x11::keysym::*`
[INFO] [stderr]  --> src/config.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use x11::keysym::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> src/main.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![warn(unused_imports)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `xlib::Button2`
[INFO] [stderr]   --> src/main.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | use xlib::Button2;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[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 `stru`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "109b342204a87d713ddff54f7f48be96b0ea302b51f2329c544022f571666b24"`
[INFO] running `"docker" "rm" "-f" "109b342204a87d713ddff54f7f48be96b0ea302b51f2329c544022f571666b24"`
[INFO] [stdout] 109b342204a87d713ddff54f7f48be96b0ea302b51f2329c544022f571666b24