[INFO] fetching crate macro_rules_attribute-proc_macro 0.2.2...
[INFO] checking macro_rules_attribute-proc_macro-0.2.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate macro_rules_attribute-proc_macro 0.2.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate macro_rules_attribute-proc_macro 0.2.2
[INFO] finished tweaking crates.io crate macro_rules_attribute-proc_macro 0.2.2
[INFO] tweaked toml for crates.io crate macro_rules_attribute-proc_macro 0.2.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate macro_rules_attribute-proc_macro 0.2.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4b5aab64749d7ca5f160535dfdc73e65d99ef3dc904ea82cbf33fa6031189ff
[INFO] running `Command { std: "docker" "start" "-a" "d4b5aab64749d7ca5f160535dfdc73e65d99ef3dc904ea82cbf33fa6031189ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4b5aab64749d7ca5f160535dfdc73e65d99ef3dc904ea82cbf33fa6031189ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b5aab64749d7ca5f160535dfdc73e65d99ef3dc904ea82cbf33fa6031189ff", kill_on_drop: false }`
[INFO] [stdout] d4b5aab64749d7ca5f160535dfdc73e65d99ef3dc904ea82cbf33fa6031189ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d9823f400571bc4b469f19c4416e4e05a8dc64a26522ce5fac42676e53af8f0
[INFO] running `Command { std: "docker" "start" "-a" "8d9823f400571bc4b469f19c4416e4e05a8dc64a26522ce5fac42676e53af8f0", kill_on_drop: false }`
[INFO] [stderr]     Checking macro_rules_attribute-proc_macro v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]    --> mod.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 297 | /     fn vec (self: Self)
[INFO] [stdout] 298 | |       -> Vec<Self::Item>
[INFO] [stdout]     | |________________________- move the `impl` block outside of this method `vec`
[INFO] [stdout] 299 |       {
[INFO] [stdout] 300 |           impl<T : IntoIterator> CollectVec for T {}
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^----------^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  `CollectVec` 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]    --> mod.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 297 | /     fn vec (self: Self)
[INFO] [stdout] 298 | |       -> Vec<Self::Item>
[INFO] [stdout]     | |________________________- move the `impl` block outside of this method `vec`
[INFO] [stdout] 299 |       {
[INFO] [stdout] 300 |           impl<T : IntoIterator> CollectVec for T {}
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^----------^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  `CollectVec` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "8d9823f400571bc4b469f19c4416e4e05a8dc64a26522ce5fac42676e53af8f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d9823f400571bc4b469f19c4416e4e05a8dc64a26522ce5fac42676e53af8f0", kill_on_drop: false }`
[INFO] [stdout] 8d9823f400571bc4b469f19c4416e4e05a8dc64a26522ce5fac42676e53af8f0