[INFO] fetching crate wurst 0.2.0...
[INFO] testing wurst-0.2.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate wurst 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate wurst 0.2.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wurst 0.2.0
[INFO] finished tweaking crates.io crate wurst 0.2.0
[INFO] tweaked toml for crates.io crate wurst 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6e2a15cce8c4f419fb46e7e950a6ad61fea8d3469b677e308f50e0af79515f70
[INFO] running `Command { std: "docker" "start" "-a" "6e2a15cce8c4f419fb46e7e950a6ad61fea8d3469b677e308f50e0af79515f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e2a15cce8c4f419fb46e7e950a6ad61fea8d3469b677e308f50e0af79515f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e2a15cce8c4f419fb46e7e950a6ad61fea8d3469b677e308f50e0af79515f70", kill_on_drop: false }`
[INFO] [stdout] 6e2a15cce8c4f419fb46e7e950a6ad61fea8d3469b677e308f50e0af79515f70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 672ce790abb6eb68ac9934198c5ec7f034aa9d1ad3666b199faa3d6fd9f7f035
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "672ce790abb6eb68ac9934198c5ec7f034aa9d1ad3666b199faa3d6fd9f7f035", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.75
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling weedle v0.6.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.75
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.75
[INFO] [stderr]    Compiling wasm-bindgen v0.2.75
[INFO] [stderr]    Compiling js-sys v0.3.52
[INFO] [stderr]    Compiling wurst v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> build/codegen.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 | /         (quote!{
[INFO] [stdout] 125 | |             #[macro_export]
[INFO] [stdout] 126 | |             macro_rules! create_element {
[INFO] [stdout] 127 | |                 #(#arms)*
[INFO] [stdout] 128 | |             }
[INFO] [stdout] 129 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 124 |         quote!{
[INFO] [stdout] 125 |             #[macro_export]
[INFO] [stdout] 126 |             macro_rules! create_element {
[INFO] [stdout] 127 |                 #(#arms)*
[INFO] [stdout] 128 |             }
[INFO] [stdout] 129 |         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code_interface_name`
[INFO] [stdout]    --> build/codegen.rs:290:13
[INFO] [stdout]     |
[INFO] [stdout] 290 |         let code_interface_name = Ident::new(
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_code_interface_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> build/parser.rs:248:84
[INFO] [stdout]     |
[INFO] [stdout] 248 | ...                   weedle::types::NonAnyType::Boolean(b),
[INFO] [stdout]     |                                                          ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_properties_in_interface`
[INFO] [stdout]    --> build/parser.rs:272:12
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn has_properties_in_interface(&self, interface_name: &str, method_name: &str) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> build/codegen.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![recursion_limit = "128"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> build/codegen.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![recursion_limit = "128"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> build/build.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     write!(f, "{}", codegen.get_code());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> build/parser.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 | /         weedle::parse(&source.contents).map(|r| {
[INFO] [stdout] 215 | |             for i in r {
[INFO] [stdout] 216 | |                 if let weedle::Definition::Interface(n) = i {
[INFO] [stdout] 217 | |                     let mut setters = vec![];
[INFO] [stdout] ...   |
[INFO] [stdout] 264 | |             }
[INFO] [stdout] 265 | |         });
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Filter` that must be used
[INFO] [stdout]    --> build/parser.rs:274:13
[INFO] [stdout]     |
[INFO] [stdout] 274 |             methods.iter().filter(|a| &method_name == *a);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling web-sys v0.3.52
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(tool_lints)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `tool_lints` has been stable since 1.31.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wurst`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "672ce790abb6eb68ac9934198c5ec7f034aa9d1ad3666b199faa3d6fd9f7f035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "672ce790abb6eb68ac9934198c5ec7f034aa9d1ad3666b199faa3d6fd9f7f035", kill_on_drop: false }`
[INFO] [stdout] 672ce790abb6eb68ac9934198c5ec7f034aa9d1ad3666b199faa3d6fd9f7f035
