[INFO] fetching crate with_builtin_macros-proc_macros 0.1.0...
[INFO] checking with_builtin_macros-proc_macros-0.1.0 against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] extracting crate with_builtin_macros-proc_macros 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate with_builtin_macros-proc_macros 0.1.0
[INFO] finished tweaking crates.io crate with_builtin_macros-proc_macros 0.1.0
[INFO] tweaked toml for crates.io crate with_builtin_macros-proc_macros 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate with_builtin_macros-proc_macros 0.1.0 on toolchain c60b92c03ca8a3b101eb9d57f51e2232690638c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to highest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v3.0.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0b79d52f7aba83e65638eb42f8b62727ea01491d5f420dbc077ce4a631f21ea9
[INFO] running `Command { std: "docker" "start" "0b79d52f7aba83e65638eb42f8b62727ea01491d5f420dbc077ce4a631f21ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b79d52f7aba83e65638eb42f8b62727ea01491d5f420dbc077ce4a631f21ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0b79d52f7aba83e65638eb42f8b62727ea01491d5f420dbc077ce4a631f21ea9" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b79d52f7aba83e65638eb42f8b62727ea01491d5f420dbc077ce4a631f21ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0b79d52f7aba83e65638eb42f8b62727ea01491d5f420dbc077ce4a631f21ea9" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.27
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking proc-macro2 v1.0.107
[INFO] [stderr]     Checking quote v1.0.47
[INFO] [stderr]     Checking with_builtin_macros-proc_macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]    --> lib.rs:271:9
[INFO] [stdout]     |
[INFO] [stdout] 270 |     const _impl: () = {
[INFO] [stdout]     |     --------------- move the `impl` block outside of this associated constant `_impl`
[INFO] [stdout] 271 |         impl MockToTokens for Vec<u8> {
[INFO] [stdout]     |         ^^^^^------------^^^^^---^^^^
[INFO] [stdout]     |              |                |
[INFO] [stdout]     |              |                `Vec` is not local
[INFO] [stdout]     |              `MockToTokens` is not local
[INFO] [stdout]     |
[INFO] [stdout]     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]     = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]    --> lib.rs:271:9
[INFO] [stdout]     |
[INFO] [stdout] 270 |     const _impl: () = {
[INFO] [stdout]     |     --------------- move the `impl` block outside of this associated constant `_impl`
[INFO] [stdout] 271 |         impl MockToTokens for Vec<u8> {
[INFO] [stdout]     |         ^^^^^------------^^^^^---^^^^
[INFO] [stdout]     |              |                |
[INFO] [stdout]     |              |                `Vec` is not local
[INFO] [stdout]     |              `MockToTokens` is not local
[INFO] [stdout]     |
[INFO] [stdout]     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]     = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream` with_builtin_macros_proc_macros
[INFO] [stdout]    --> lib.rs:366:36
[INFO] [stdout]     |
[INFO] [stdout] 366 | ...                   return err.to_compile_error().into();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 366 -                             return err.to_compile_error().into();
[INFO] [stdout] 366 +                             return err.to_compile_error();
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 366 -                             return err.to_compile_error().into();
[INFO] [stdout] 366 +                             return <proc_macro2::TokenStream as Into<_>>::into(err.to_compile_error());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream` with_builtin_macros_proc_macros
[INFO] [stdout]    --> lib.rs:366:36
[INFO] [stdout]     |
[INFO] [stdout] 366 | ...                   return err.to_compile_error().into();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 366 -                             return err.to_compile_error().into();
[INFO] [stdout] 366 +                             return err.to_compile_error();
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 366 -                             return err.to_compile_error().into();
[INFO] [stdout] 366 +                             return <proc_macro2::TokenStream as Into<_>>::into(err.to_compile_error());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `with_builtin_macros-proc_macros` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `with_builtin_macros-proc_macros` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "0b79d52f7aba83e65638eb42f8b62727ea01491d5f420dbc077ce4a631f21ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b79d52f7aba83e65638eb42f8b62727ea01491d5f420dbc077ce4a631f21ea9", kill_on_drop: false }`
[INFO] [stdout] 0b79d52f7aba83e65638eb42f8b62727ea01491d5f420dbc077ce4a631f21ea9
