[INFO] updating cached repository alexandermccormick/wasm-conways-game-of-life [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/alexandermccormick/wasm-conways-game-of-life [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/alexandermccormick/wasm-conways-game-of-life" "work/ex/beta-1.38-1/sources/1.37.0/gh/alexandermccormick/wasm-conways-game-of-life"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/alexandermccormick/wasm-conways-game-of-life'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/alexandermccormick/wasm-conways-game-of-life" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexandermccormick/wasm-conways-game-of-life"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexandermccormick/wasm-conways-game-of-life'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 265545a7b4f18624ee90dcca7dceda8f98149c64 [INFO] sha for GitHub repo alexandermccormick/wasm-conways-game-of-life: 265545a7b4f18624ee90dcca7dceda8f98149c64 [INFO] validating manifest of alexandermccormick/wasm-conways-game-of-life 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 alexandermccormick/wasm-conways-game-of-life 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 alexandermccormick/wasm-conways-game-of-life [INFO] finished frobbing alexandermccormick/wasm-conways-game-of-life [INFO] frobbed toml for alexandermccormick/wasm-conways-game-of-life written to work/ex/beta-1.38-1/sources/1.37.0/gh/alexandermccormick/wasm-conways-game-of-life/Cargo.toml [INFO] started frobbing alexandermccormick/wasm-conways-game-of-life [INFO] finished frobbing alexandermccormick/wasm-conways-game-of-life [INFO] frobbed toml for alexandermccormick/wasm-conways-game-of-life written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexandermccormick/wasm-conways-game-of-life/Cargo.toml [INFO] crate alexandermccormick/wasm-conways-game-of-life 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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 alexandermccormick/wasm-conways-game-of-life 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-0/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/alexandermccormick/wasm-conways-game-of-life:/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] b8acb95923f9ecb80ad1817a867555c403a5510707c8bc483b43b180673d3297 [INFO] running `"docker" "start" "-a" "b8acb95923f9ecb80ad1817a867555c403a5510707c8bc483b43b180673d3297"` [INFO] [stderr] Compiling version_check v0.1.4 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.17 [INFO] [stderr] Compiling cfg-if v0.1.4 [INFO] [stderr] Compiling proc-macro2 v0.4.9 [INFO] [stderr] Compiling log v0.4.3 [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.9/src/lib.rs:47:34 [INFO] [stderr] | [INFO] [stderr] 47 | #![cfg_attr(feature = "nightly", feature(proc_macro_raw_ident, proc_macro_span))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.9/src/unstable.rs:347:27 [INFO] [stderr] | [INFO] [stderr] 347 | Span::Nightly(proc_macro::Span::def_site()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: for more information, see https://github.com/rust-lang/rust/issues/54724 [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0554, E0658. [INFO] [stderr] For more information about an error, try `rustc --explain E0554`. [INFO] [stderr] Compiling lazy_static v1.1.0 [INFO] [stderr] error: Could not compile `proc-macro2`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "b8acb95923f9ecb80ad1817a867555c403a5510707c8bc483b43b180673d3297"` [INFO] running `"docker" "rm" "-f" "b8acb95923f9ecb80ad1817a867555c403a5510707c8bc483b43b180673d3297"` [INFO] [stdout] b8acb95923f9ecb80ad1817a867555c403a5510707c8bc483b43b180673d3297