[INFO] fetching crate linear_collections_macros 0.1.0...
[INFO] checking linear_collections_macros-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate linear_collections_macros 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate linear_collections_macros 0.1.0
[INFO] finished tweaking crates.io crate linear_collections_macros 0.1.0
[INFO] tweaked toml for crates.io crate linear_collections_macros 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate linear_collections_macros 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7d88cb0db680fdcc3e6ea1fb1f40590d9fc84800f9134e46418f5ce6ccc6083
[INFO] running `Command { std: "docker" "start" "-a" "c7d88cb0db680fdcc3e6ea1fb1f40590d9fc84800f9134e46418f5ce6ccc6083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7d88cb0db680fdcc3e6ea1fb1f40590d9fc84800f9134e46418f5ce6ccc6083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7d88cb0db680fdcc3e6ea1fb1f40590d9fc84800f9134e46418f5ce6ccc6083", kill_on_drop: false }`
[INFO] [stdout] c7d88cb0db680fdcc3e6ea1fb1f40590d9fc84800f9134e46418f5ce6ccc6083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9b577681ccc1265f99242427d2a818c85be4c4e66a74d9265405a5c1527ad1b
[INFO] running `Command { std: "docker" "start" "-a" "c9b577681ccc1265f99242427d2a818c85be4c4e66a74d9265405a5c1527ad1b", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking proc-macro2 v1.0.95
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.104
[INFO] [stderr]     Checking linear_collections_macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ToTokens`
[INFO] [stdout]  --> src/lib.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use quote::{quote, ToTokens};
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExprTuple`, `Token`, `parse::Parse`, and `punctuated::Punctuated`
[INFO] [stdout]  --> src/lib.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{parse::Parse, parse_macro_input, punctuated::Punctuated, ExprTuple, Token};
[INFO] [stdout]   |           ^^^^^^^^^^^^                     ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToTokens`
[INFO] [stdout]  --> src/lib.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use quote::{quote, ToTokens};
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExprTuple`, `Token`, `parse::Parse`, and `punctuated::Punctuated`
[INFO] [stdout]  --> src/lib.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{parse::Parse, parse_macro_input, punctuated::Punctuated, ExprTuple, Token};
[INFO] [stdout]   |           ^^^^^^^^^^^^                     ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.60s
[INFO] running `Command { std: "docker" "inspect" "c9b577681ccc1265f99242427d2a818c85be4c4e66a74d9265405a5c1527ad1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9b577681ccc1265f99242427d2a818c85be4c4e66a74d9265405a5c1527ad1b", kill_on_drop: false }`
[INFO] [stdout] c9b577681ccc1265f99242427d2a818c85be4c4e66a74d9265405a5c1527ad1b