[INFO] fetching crate multiconst_proc_macros 0.2.2...
[INFO] checking multiconst_proc_macros-0.2.2 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate multiconst_proc_macros 0.2.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate multiconst_proc_macros 0.2.2 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate multiconst_proc_macros 0.2.2
[INFO] finished tweaking crates.io crate multiconst_proc_macros 0.2.2
[INFO] tweaked toml for crates.io crate multiconst_proc_macros 0.2.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37ecf0e9ec12edb0188ccfd8ee762b05852fe2debe72867a2541bf156157b898
[INFO] running `Command { std: "docker" "start" "-a" "37ecf0e9ec12edb0188ccfd8ee762b05852fe2debe72867a2541bf156157b898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37ecf0e9ec12edb0188ccfd8ee762b05852fe2debe72867a2541bf156157b898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ecf0e9ec12edb0188ccfd8ee762b05852fe2debe72867a2541bf156157b898", kill_on_drop: false }`
[INFO] [stdout] 37ecf0e9ec12edb0188ccfd8ee762b05852fe2debe72867a2541bf156157b898
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f4a67a074d49363bee03a8eced13d023e0146b91ef1b103e69944e67fac0507
[INFO] running `Command { std: "docker" "start" "-a" "2f4a67a074d49363bee03a8eced13d023e0146b91ef1b103e69944e67fac0507", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking multiconst_proc_macros v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking proc-macro2 v1.0.86
[INFO] [stdout] warning: method `into_token_tree` is never used
[INFO] [stdout]    --> src/utils.rs:134:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub(crate) trait TokenTreeExt: Sized {
[INFO] [stdout]     |                  ------------ method in this trait
[INFO] [stdout] 133 |     fn as_token_tree(&self) -> &TokenTree;
[INFO] [stdout] 134 |     fn into_token_tree(self) -> TokenTree;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_token_tree` is never used
[INFO] [stdout]    --> src/utils.rs:134:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub(crate) trait TokenTreeExt: Sized {
[INFO] [stdout]     |                  ------------ method in this trait
[INFO] [stdout] 133 |     fn as_token_tree(&self) -> &TokenTree;
[INFO] [stdout] 134 |     fn into_token_tree(self) -> TokenTree;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "2f4a67a074d49363bee03a8eced13d023e0146b91ef1b103e69944e67fac0507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f4a67a074d49363bee03a8eced13d023e0146b91ef1b103e69944e67fac0507", kill_on_drop: false }`
[INFO] [stdout] 2f4a67a074d49363bee03a8eced13d023e0146b91ef1b103e69944e67fac0507