[INFO] fetching crate trait-based-collection-macros 0.1.0...
[INFO] building trait-based-collection-macros-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate trait-based-collection-macros 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate trait-based-collection-macros 0.1.0
[INFO] finished tweaking crates.io crate trait-based-collection-macros 0.1.0
[INFO] tweaked toml for crates.io crate trait-based-collection-macros 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate trait-based-collection-macros 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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 convert_case v0.5.0 (available: v0.8.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d546dd24bd4b8939e7525e506ceb0d7ff659aebd31301f6bc6b65dfd9b448fe
[INFO] running `Command { std: "docker" "start" "-a" "1d546dd24bd4b8939e7525e506ceb0d7ff659aebd31301f6bc6b65dfd9b448fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d546dd24bd4b8939e7525e506ceb0d7ff659aebd31301f6bc6b65dfd9b448fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d546dd24bd4b8939e7525e506ceb0d7ff659aebd31301f6bc6b65dfd9b448fe", kill_on_drop: false }`
[INFO] [stdout] 1d546dd24bd4b8939e7525e506ceb0d7ff659aebd31301f6bc6b65dfd9b448fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1471db7bf2c190310bb46b681f5544f77cebb0fe8eaa20bcf57b90ce9c8bdca3
[INFO] running `Command { std: "docker" "start" "-a" "1471db7bf2c190310bb46b681f5544f77cebb0fe8eaa20bcf57b90ce9c8bdca3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling trait-based-collection-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: enum `TokenTree` is private
[INFO] [stdout]   --> src/lib.rs:27:23
[INFO] [stdout]    |
[INFO] [stdout] 27 | use quote::__private::TokenTree;
[INFO] [stdout]    |                       ^^^^^^^^^ private enum
[INFO] [stdout]    |
[INFO] [stdout] note: the enum `TokenTree` is defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quote-1.0.41/src/runtime.rs:6:49
[INFO] [stdout]    |
[INFO] [stdout]  6 | use proc_macro2::{Group, Ident, Punct, Spacing, TokenTree};
[INFO] [stdout]    |                                                 ^^^^^^^^^
[INFO] [stdout] help: import `TokenTree` directly
[INFO] [stdout]    |
[INFO] [stdout] 27 - use quote::__private::TokenTree;
[INFO] [stdout] 27 + use proc_macro2::TokenTree;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/lib.rs:685:50
[INFO] [stdout]     |
[INFO] [stdout] 685 |         syn::TypeParamBound::Trait(ref bound) => (bound.path.segments[0].arguments.clone()),
[INFO] [stdout]     |                                                  ^                                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 685 -         syn::TypeParamBound::Trait(ref bound) => (bound.path.segments[0].arguments.clone()),
[INFO] [stdout] 685 +         syn::TypeParamBound::Trait(ref bound) => bound.path.segments[0].arguments.clone(),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0603`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `trait-based-collection-macros` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1471db7bf2c190310bb46b681f5544f77cebb0fe8eaa20bcf57b90ce9c8bdca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1471db7bf2c190310bb46b681f5544f77cebb0fe8eaa20bcf57b90ce9c8bdca3", kill_on_drop: false }`
[INFO] [stdout] 1471db7bf2c190310bb46b681f5544f77cebb0fe8eaa20bcf57b90ce9c8bdca3