[INFO] fetching crate global-static-singleton 0.2.0...
[INFO] checking global-static-singleton-0.2.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate global-static-singleton 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate global-static-singleton 0.2.0
[INFO] finished tweaking crates.io crate global-static-singleton 0.2.0
[INFO] tweaked toml for crates.io crate global-static-singleton 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate global-static-singleton 0.2.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8f30db5098f874ec7bf141240637323860d8c84104e555bc7e12ea5687f14219
[INFO] running `Command { std: "docker" "start" "-a" "8f30db5098f874ec7bf141240637323860d8c84104e555bc7e12ea5687f14219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f30db5098f874ec7bf141240637323860d8c84104e555bc7e12ea5687f14219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f30db5098f874ec7bf141240637323860d8c84104e555bc7e12ea5687f14219", kill_on_drop: false }`
[INFO] [stdout] 8f30db5098f874ec7bf141240637323860d8c84104e555bc7e12ea5687f14219
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a340bafbf02136c19612ed32ac5e4fe157ce700d2e7ea139ecbe6d75458a667e
[INFO] running `Command { std: "docker" "start" "-a" "a340bafbf02136c19612ed32ac5e4fe157ce700d2e7ea139ecbe6d75458a667e", kill_on_drop: false }`
[INFO] [stderr]     Checking syn v2.0.104
[INFO] [stderr]     Checking global-static-singleton v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ToTokens`
[INFO] [stdout]  --> src/lib.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | 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 import: `spanned::Spanned`
[INFO] [stdout]  --> src/lib.rs:5:63
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{parse_macro_input, ItemStruct, Expr, Ident, ItemFn, spanned::Spanned};
[INFO] [stdout]   |                                                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToTokens`
[INFO] [stdout]  --> src/lib.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | 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 import: `spanned::Spanned`
[INFO] [stdout]  --> src/lib.rs:5:63
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{parse_macro_input, ItemStruct, Expr, Ident, ItemFn, spanned::Spanned};
[INFO] [stdout]   |                                                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.84s
[INFO] running `Command { std: "docker" "inspect" "a340bafbf02136c19612ed32ac5e4fe157ce700d2e7ea139ecbe6d75458a667e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a340bafbf02136c19612ed32ac5e4fe157ce700d2e7ea139ecbe6d75458a667e", kill_on_drop: false }`
[INFO] [stdout] a340bafbf02136c19612ed32ac5e4fe157ce700d2e7ea139ecbe6d75458a667e