[INFO] fetching crate genawaiter-proc-macro 0.99.0...
[INFO] checking genawaiter-proc-macro-0.99.0 against master#e2223c94bf433fc38234d1303e88cbaf14755863 for pr-69548
[INFO] extracting crate genawaiter-proc-macro 0.99.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate genawaiter-proc-macro 0.99.0 on toolchain e2223c94bf433fc38234d1303e88cbaf14755863
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e2223c94bf433fc38234d1303e88cbaf14755863" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate genawaiter-proc-macro 0.99.0
[INFO] finished tweaking crates.io crate genawaiter-proc-macro 0.99.0
[INFO] tweaked toml for crates.io crate genawaiter-proc-macro 0.99.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e2223c94bf433fc38234d1303e88cbaf14755863" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e2223c94bf433fc38234d1303e88cbaf14755863" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e2223c94bf433fc38234d1303e88cbaf14755863" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e00fc26df97f00da21b877ae114b8ad9784048558192ba7a0111cbb57a392ba0
[INFO] running `"docker" "start" "-a" "e00fc26df97f00da21b877ae114b8ad9784048558192ba7a0111cbb57a392ba0"`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking proc-macro-error v0.4.11
[INFO] [stderr]     Checking genawaiter-proc-macro v0.99.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved imports `syn::FnArg`, `syn::ItemFn`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     FnArg,
[INFO] [stderr]    |     ^^^^^ no `FnArg` in the root
[INFO] [stderr] 21 |     Ident,
[INFO] [stderr] 22 |     ItemFn,
[INFO] [stderr]    |     ^^^^^^ no `ItemFn` in the root
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `visit_mut::VisitMut`
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     visit_mut::VisitMut,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:1:73
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]    |                                                                         ^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `syn::FnArg`, `syn::ItemFn`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     FnArg,
[INFO] [stderr]    |     ^^^^^ no `FnArg` in the root
[INFO] [stderr] 21 |     Ident,
[INFO] [stderr] 22 |     ItemFn,
[INFO] [stderr]    |     ^^^^^^ no `ItemFn` in the root
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `visit_mut::VisitMut`
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     visit_mut::VisitMut,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:1:73
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]    |                                                                         ^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_item_fn_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]   --> src/lib.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |     YieldReplace.visit_item_fn_mut(&mut function);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/visit.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct YieldReplace;
[INFO] [stderr]    | ------------------------ method `visit_item_fn_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_item_fn_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]   --> src/lib.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |     YieldReplace.visit_item_fn_mut(&mut function);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/visit.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct YieldReplace;
[INFO] [stderr]    | ------------------------ method `visit_item_fn_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `syn::expr::ExprBlock: syn::parse::Parse` is not satisfied
[INFO] [stderr]   --> src/lib.rs:48:49
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut input = parse_macro_input!(input as ExprBlock);
[INFO] [stderr]    |                                                 ^^^^^^^^^ the trait `syn::parse::Parse` is not implemented for `syn::expr::ExprBlock`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.16/src/parse_macro_input.rs:69:17
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn parse<T: ParseMacroInput>(token_stream: TokenStream) -> Result<T> {
[INFO] [stderr]    |                 --------------- required by this bound in `syn::parse_macro_input::parse`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `syn::parse_macro_input::ParseMacroInput` for `syn::expr::ExprBlock`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_expr_block_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]   --> src/lib.rs:50:18
[INFO] [stderr]    |
[INFO] [stderr] 50 |     YieldReplace.visit_expr_block_mut(&mut input);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/visit.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct YieldReplace;
[INFO] [stderr]    | ------------------------ method `visit_expr_block_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `syn::expr::ExprBlock: syn::parse::Parse` is not satisfied
[INFO] [stderr]   --> src/lib.rs:48:49
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut input = parse_macro_input!(input as ExprBlock);
[INFO] [stderr]    |                                                 ^^^^^^^^^ the trait `syn::parse::Parse` is not implemented for `syn::expr::ExprBlock`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.16/src/parse_macro_input.rs:69:17
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn parse<T: ParseMacroInput>(token_stream: TokenStream) -> Result<T> {
[INFO] [stderr]    |                 --------------- required by this bound in `syn::parse_macro_input::parse`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `syn::parse_macro_input::ParseMacroInput` for `syn::expr::ExprBlock`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_item_fn_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]   --> src/lib.rs:73:18
[INFO] [stderr]    |
[INFO] [stderr] 73 |     YieldReplace.visit_item_fn_mut(&mut function);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/visit.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct YieldReplace;
[INFO] [stderr]    | ------------------------ method `visit_item_fn_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_expr_block_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]   --> src/lib.rs:50:18
[INFO] [stderr]    |
[INFO] [stderr] 50 |     YieldReplace.visit_expr_block_mut(&mut input);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/visit.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct YieldReplace;
[INFO] [stderr]    | ------------------------ method `visit_expr_block_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_item_fn_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]   --> src/lib.rs:73:18
[INFO] [stderr]    |
[INFO] [stderr] 73 |     YieldReplace.visit_item_fn_mut(&mut function);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/visit.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct YieldReplace;
[INFO] [stderr]    | ------------------------ method `visit_item_fn_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `syn::expr::ExprBlock: syn::parse::Parse` is not satisfied
[INFO] [stderr]   --> src/lib.rs:82:49
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let mut input = parse_macro_input!(input as ExprBlock);
[INFO] [stderr]    |                                                 ^^^^^^^^^ the trait `syn::parse::Parse` is not implemented for `syn::expr::ExprBlock`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.16/src/parse_macro_input.rs:69:17
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn parse<T: ParseMacroInput>(token_stream: TokenStream) -> Result<T> {
[INFO] [stderr]    |                 --------------- required by this bound in `syn::parse_macro_input::parse`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `syn::parse_macro_input::ParseMacroInput` for `syn::expr::ExprBlock`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_expr_block_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]   --> src/lib.rs:84:18
[INFO] [stderr]    |
[INFO] [stderr] 84 |     YieldReplace.visit_expr_block_mut(&mut input);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/visit.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct YieldReplace;
[INFO] [stderr]    | ------------------------ method `visit_expr_block_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `syn::expr::ExprBlock: syn::parse::Parse` is not satisfied
[INFO] [stderr]   --> src/lib.rs:82:49
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let mut input = parse_macro_input!(input as ExprBlock);
[INFO] [stderr]    |                                                 ^^^^^^^^^ the trait `syn::parse::Parse` is not implemented for `syn::expr::ExprBlock`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.16/src/parse_macro_input.rs:69:17
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn parse<T: ParseMacroInput>(token_stream: TokenStream) -> Result<T> {
[INFO] [stderr]    |                 --------------- required by this bound in `syn::parse_macro_input::parse`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `syn::parse_macro_input::ParseMacroInput` for `syn::expr::ExprBlock`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_expr_block_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]   --> src/lib.rs:84:18
[INFO] [stderr]    |
[INFO] [stderr] 84 |     YieldReplace.visit_expr_block_mut(&mut input);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/visit.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct YieldReplace;
[INFO] [stderr]    | ------------------------ method `visit_expr_block_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_item_fn_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]    --> src/lib.rs:106:18
[INFO] [stderr]     |
[INFO] [stderr] 106 |     YieldReplace.visit_item_fn_mut(&mut function);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/visit.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub struct YieldReplace;
[INFO] [stderr]     | ------------------------ method `visit_item_fn_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_item_fn_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]    --> src/lib.rs:106:18
[INFO] [stderr]     |
[INFO] [stderr] 106 |     YieldReplace.visit_item_fn_mut(&mut function);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/visit.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub struct YieldReplace;
[INFO] [stderr]     | ------------------------ method `visit_item_fn_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `syn::expr::ExprBlock: syn::parse::Parse` is not satisfied
[INFO] [stderr]    --> src/lib.rs:115:49
[INFO] [stderr]     |
[INFO] [stderr] 115 |     let mut input = parse_macro_input!(input as ExprBlock);
[INFO] [stderr]     |                                                 ^^^^^^^^^ the trait `syn::parse::Parse` is not implemented for `syn::expr::ExprBlock`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.16/src/parse_macro_input.rs:69:17
[INFO] [stderr]     |
[INFO] [stderr] 69  | pub fn parse<T: ParseMacroInput>(token_stream: TokenStream) -> Result<T> {
[INFO] [stderr]     |                 --------------- required by this bound in `syn::parse_macro_input::parse`
[INFO] [stderr]     |
[INFO] [stderr]     = note: required because of the requirements on the impl of `syn::parse_macro_input::ParseMacroInput` for `syn::expr::ExprBlock`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `syn::expr::ExprBlock: syn::parse::Parse` is not satisfied
[INFO] [stderr]    --> src/lib.rs:115:49
[INFO] [stderr]     |
[INFO] [stderr] 115 |     let mut input = parse_macro_input!(input as ExprBlock);
[INFO] [stderr]     |                                                 ^^^^^^^^^ the trait `syn::parse::Parse` is not implemented for `syn::expr::ExprBlock`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.16/src/parse_macro_input.rs:69:17
[INFO] [stderr]     |
[INFO] [stderr] 69  | pub fn parse<T: ParseMacroInput>(token_stream: TokenStream) -> Result<T> {
[INFO] [stderr]     |                 --------------- required by this bound in `syn::parse_macro_input::parse`
[INFO] [stderr]     |
[INFO] [stderr]     = note: required because of the requirements on the impl of `syn::parse_macro_input::ParseMacroInput` for `syn::expr::ExprBlock`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_expr_block_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]    --> src/lib.rs:117:18
[INFO] [stderr]     |
[INFO] [stderr] 117 |     YieldReplace.visit_expr_block_mut(&mut input);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/visit.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub struct YieldReplace;
[INFO] [stderr]     | ------------------------ method `visit_expr_block_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `visit_expr_block_mut` found for struct `visit::YieldReplace` in the current scope
[INFO] [stderr]    --> src/lib.rs:117:18
[INFO] [stderr]     |
[INFO] [stderr] 117 |     YieldReplace.visit_expr_block_mut(&mut input);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^ method not found in `visit::YieldReplace`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/visit.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub struct YieldReplace;
[INFO] [stderr]     | ------------------------ method `visit_expr_block_mut` not found for this
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `mac` on type `&mut syn::expr::ExprMacro`
[INFO] [stderr]   --> src/visit.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 |             if m.mac.path.segments.iter().any(|seg| seg.ident == "yield_") {
[INFO] [stderr]    |                  ^^^ unknown field
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `mac` on type `&mut syn::expr::ExprMacro`
[INFO] [stderr]   --> src/visit.rs:15:56
[INFO] [stderr]    |
[INFO] [stderr] 15 |                 let tkns: TokenStream2 = syn::parse2(m.mac.tokens.clone())
[INFO] [stderr]    |                                                        ^^^ unknown field
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `mac` on type `&mut syn::expr::ExprMacro`
[INFO] [stderr]   --> src/visit.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 |             if m.mac.path.segments.iter().any(|seg| seg.ident == "yield_") {
[INFO] [stderr]    |                  ^^^ unknown field
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `mac` on type `&mut syn::expr::ExprMacro`
[INFO] [stderr]   --> src/visit.rs:15:56
[INFO] [stderr]    |
[INFO] [stderr] 15 |                 let tkns: TokenStream2 = syn::parse2(m.mac.tokens.clone())
[INFO] [stderr]    |                                                        ^^^ unknown field
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `spanned::Spanned`
[INFO] [stderr]   --> src/lib.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     spanned::Spanned,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `spanned::Spanned`
[INFO] [stderr]   --> src/lib.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     spanned::Spanned,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused extern crate
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | extern crate proc_macro;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:1:73
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]   |                                                                         ^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_extern_crates)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unused extern crate
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | extern crate proc_macro;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:1:73
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]   |                                                                         ^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_extern_crates)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0432, E0599, E0609.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0432, E0599, E0609.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `genawaiter-proc-macro`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `genawaiter-proc-macro`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e00fc26df97f00da21b877ae114b8ad9784048558192ba7a0111cbb57a392ba0"`
[INFO] running `"docker" "rm" "-f" "e00fc26df97f00da21b877ae114b8ad9784048558192ba7a0111cbb57a392ba0"`
[INFO] [stdout] e00fc26df97f00da21b877ae114b8ad9784048558192ba7a0111cbb57a392ba0