[INFO] updating cached repository nickmass/web-tetris
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nickmass/web-tetris
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nickmass/web-tetris" "work/ex/beta-1.38-1/sources/1.37.0/gh/nickmass/web-tetris"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nickmass/web-tetris'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nickmass/web-tetris" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nickmass/web-tetris"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nickmass/web-tetris'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8ed0c0e0aa62f44ff0202caad342e3cb6d927663
[INFO] sha for GitHub repo nickmass/web-tetris: 8ed0c0e0aa62f44ff0202caad342e3cb6d927663
[INFO] validating manifest of nickmass/web-tetris 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 nickmass/web-tetris 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 nickmass/web-tetris
[INFO] finished frobbing nickmass/web-tetris
[INFO] frobbed toml for nickmass/web-tetris written to work/ex/beta-1.38-1/sources/1.37.0/gh/nickmass/web-tetris/Cargo.toml
[INFO] started frobbing nickmass/web-tetris
[INFO] finished frobbing nickmass/web-tetris
[INFO] frobbed toml for nickmass/web-tetris written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nickmass/web-tetris/Cargo.toml
[INFO] crate nickmass/web-tetris 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing nickmass/web-tetris 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nickmass/web-tetris:/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] 156746479f972fb59ea29bc570f3a49a9d968cc8d99591fd81d50ea307d8232c
[INFO] running `"docker" "start" "-a" "156746479f972fb59ea29bc570f3a49a9d968cc8d99591fd81d50ea307d8232c"`
[INFO] [stderr]    Compiling stdweb v0.4.0
[INFO] [stderr]    Compiling random v0.12.2
[INFO] [stderr]    Compiling syn v0.12.13
[INFO] [stderr]    Compiling stdweb-derive v0.4.0
[INFO] [stderr]    Compiling web-tetris v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0658]: The attribute `js_export` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> src/main.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[js_export]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `js_export` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> src/main.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[js_export]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `js_export` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> src/main.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 | #[js_export]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `js_export` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> src/main.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 | #[js_export]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `js_export` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> src/main.rs:54:3
[INFO] [stderr]    |
[INFO] [stderr] 54 | #[js_export]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `js_export` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> src/main.rs:62:3
[INFO] [stderr]    |
[INFO] [stderr] 62 | #[js_export]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `js_export` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> src/main.rs:70:3
[INFO] [stderr]    |
[INFO] [stderr] 70 | #[js_export]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `js_export` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> src/main.rs:78:3
[INFO] [stderr]    |
[INFO] [stderr] 78 | #[js_export]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `stdweb::js_export`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use stdweb::js_export;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ no `js_export` in the root
[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(proc_macro)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 10 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `web-tetris`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "156746479f972fb59ea29bc570f3a49a9d968cc8d99591fd81d50ea307d8232c"`
[INFO] running `"docker" "rm" "-f" "156746479f972fb59ea29bc570f3a49a9d968cc8d99591fd81d50ea307d8232c"`
[INFO] [stdout] 156746479f972fb59ea29bc570f3a49a9d968cc8d99591fd81d50ea307d8232c