[INFO] crate wurst 0.2.0 is already in cache [INFO] extracting crate wurst 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/wurst/0.2.0 [INFO] extracting crate wurst 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wurst/0.2.0 [INFO] validating manifest of wurst-0.2.0 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 wurst-0.2.0 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 wurst-0.2.0 [INFO] finished frobbing wurst-0.2.0 [INFO] frobbed toml for wurst-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/wurst/0.2.0/Cargo.toml [INFO] started frobbing wurst-0.2.0 [INFO] finished frobbing wurst-0.2.0 [INFO] frobbed toml for wurst-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wurst/0.2.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [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" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [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 wurst-0.2.0 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-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wurst/0.2.0:/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] 1ee056743cd7ae7d24dddaf0f7095fcadbf818e32d7fdbf73c2f5c4aec332564 [INFO] running `"docker" "start" "-a" "1ee056743cd7ae7d24dddaf0f7095fcadbf818e32d7fdbf73c2f5c4aec332564"` [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling sourcefile v0.1.4 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling weedle v0.10.0 [INFO] [stderr] Compiling weedle v0.6.1 [INFO] [stderr] Compiling wasm-bindgen-webidl v0.2.50 [INFO] [stderr] Compiling wurst v0.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `code_interface_name` [INFO] [stderr] --> build/codegen.rs:290:13 [INFO] [stderr] | [INFO] [stderr] 290 | let code_interface_name = Ident::new( [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_code_interface_name` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> build/parser.rs:248:84 [INFO] [stderr] | [INFO] [stderr] 248 | weedle::types::NonAnyType::Boolean(b), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `has_properties_in_interface` [INFO] [stderr] --> build/parser.rs:272:5 [INFO] [stderr] | [INFO] [stderr] 272 | pub fn has_properties_in_interface(&self, interface_name: &str, method_name: &str) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused attribute [INFO] [stderr] --> build/codegen.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![recursion_limit = "128"] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_attributes)]` on by default [INFO] [stderr] [INFO] [stderr] warning: crate-level attribute should be in the root module [INFO] [stderr] --> build/codegen.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![recursion_limit = "128"] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> build/build.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | write!(f, "{}", codegen.get_code()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> build/parser.rs:214:9 [INFO] [stderr] | [INFO] [stderr] 214 | / weedle::parse(&source.contents).map(|r| { [INFO] [stderr] 215 | | for i in r { [INFO] [stderr] 216 | | if let weedle::Definition::Interface(n) = i { [INFO] [stderr] 217 | | let mut setters = vec![]; [INFO] [stderr] ... | [INFO] [stderr] 264 | | } [INFO] [stderr] 265 | | }); [INFO] [stderr] | |___________^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::iter::Filter` that must be used [INFO] [stderr] --> build/parser.rs:274:13 [INFO] [stderr] | [INFO] [stderr] 274 | methods.iter().filter(|a| &method_name == *a); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: iterators are lazy and do nothing unless consumed [INFO] [stderr] [INFO] [stderr] Compiling web-sys v0.3.27 [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(tool_lints)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `wurst`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "1ee056743cd7ae7d24dddaf0f7095fcadbf818e32d7fdbf73c2f5c4aec332564"` [INFO] running `"docker" "rm" "-f" "1ee056743cd7ae7d24dddaf0f7095fcadbf818e32d7fdbf73c2f5c4aec332564"` [INFO] [stdout] 1ee056743cd7ae7d24dddaf0f7095fcadbf818e32d7fdbf73c2f5c4aec332564