[INFO] fetching crate generic_trait_alias 0.1.2...
[INFO] testing generic_trait_alias-0.1.2 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate generic_trait_alias 0.1.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate generic_trait_alias 0.1.2
[INFO] finished tweaking crates.io crate generic_trait_alias 0.1.2
[INFO] tweaked toml for crates.io crate generic_trait_alias 0.1.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate generic_trait_alias 0.1.2 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c5c1a2a37425bd8283264512dbe2dc3b8c91d3a5684927adfd3343ab2a0fb5a
[INFO] running `Command { std: "docker" "start" "-a" "3c5c1a2a37425bd8283264512dbe2dc3b8c91d3a5684927adfd3343ab2a0fb5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c5c1a2a37425bd8283264512dbe2dc3b8c91d3a5684927adfd3343ab2a0fb5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c5c1a2a37425bd8283264512dbe2dc3b8c91d3a5684927adfd3343ab2a0fb5a", kill_on_drop: false }`
[INFO] [stdout] 3c5c1a2a37425bd8283264512dbe2dc3b8c91d3a5684927adfd3343ab2a0fb5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9f2abe56e42c8bb101ad4b6903d4ae9bbd55f5fb472c2b9a34873cdcbe12bc4
[INFO] running `Command { std: "docker" "start" "-a" "a9f2abe56e42c8bb101ad4b6903d4ae9bbd55f5fb472c2b9a34873cdcbe12bc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic_trait_alias v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/parser.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 while let Token::Colon = self.items[i + 1] && let Token::Ident(ident2) = &self.items[i + 2]{
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/parser.rs:65:63
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 while let Token::Colon = self.items[i + 1] && let Token::Ident(ident2) = &self.items[i + 2]{
[INFO] [stdout]    |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `generic_trait_alias` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a9f2abe56e42c8bb101ad4b6903d4ae9bbd55f5fb472c2b9a34873cdcbe12bc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9f2abe56e42c8bb101ad4b6903d4ae9bbd55f5fb472c2b9a34873cdcbe12bc4", kill_on_drop: false }`
[INFO] [stdout] a9f2abe56e42c8bb101ad4b6903d4ae9bbd55f5fb472c2b9a34873cdcbe12bc4