[INFO] cloning repository https://github.com/flake-lang/flake2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flake-lang/flake2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflake-lang%2Fflake2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflake-lang%2Fflake2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2728b593aede27dd08770f7ee8553b3dd19dc098
[INFO] checking flake-lang/flake2 against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflake-lang%2Fflake2" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/flake-lang/flake2
[INFO] finished tweaking git repo https://github.com/flake-lang/flake2
[INFO] tweaked toml for git repo https://github.com/flake-lang/flake2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/flake-lang/flake2 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/flake-lang/flake2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded llvm-sys v140.1.3
[INFO] [stderr]   Downloaded lalr v0.0.2
[INFO] [stderr]   Downloaded plex v0.3.0
[INFO] [stderr]   Downloaded lexgen_util v0.15.0
[INFO] [stderr]   Downloaded inkwell_internals v0.9.0
[INFO] [stderr]   Downloaded inkwell v0.4.0
[INFO] [stderr]   Downloaded lexgen v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ca2dfea87262b7783c95be32435cc0f56ef19ec446b598adf99b383b6f49432
[INFO] running `Command { std: "docker" "start" "-a" "8ca2dfea87262b7783c95be32435cc0f56ef19ec446b598adf99b383b6f49432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ca2dfea87262b7783c95be32435cc0f56ef19ec446b598adf99b383b6f49432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca2dfea87262b7783c95be32435cc0f56ef19ec446b598adf99b383b6f49432", kill_on_drop: false }`
[INFO] [stdout] 8ca2dfea87262b7783c95be32435cc0f56ef19ec446b598adf99b383b6f49432
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c44df52080142730cb31d402ac08b3883e6f4f4c0c3f0ca6d33424ae717977d1
[INFO] running `Command { std: "docker" "start" "-a" "c44df52080142730cb31d402ac08b3883e6f4f4c0c3f0ca6d33424ae717977d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling lalr v0.0.2
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling inkwell v0.4.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking flakec-codegen v0.0.0 (/opt/rustwide/workdir/compiler/flakec-codegen)
[INFO] [stderr]     Checking lexgen_util v0.15.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking syn v2.0.52
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]     Checking flakec-parser-derive v0.1.0 (/opt/rustwide/workdir/compiler/flakec-parser-derive)
[INFO] [stdout] warning: unused import: `ToTokens as _`
[INFO] [stdout]  --> compiler/flakec-parser-derive/src/lib.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use quote::{quote, ToTokens as _};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToTokens as _`
[INFO] [stdout]  --> compiler/flakec-parser-derive/src/lib.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use quote::{quote, ToTokens as _};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling lexgen v0.15.0
[INFO] [stderr]    Compiling plex v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling inkwell_internals v0.9.0
[INFO] [stderr]    Compiling llvm-sys v140.1.3
[INFO] [stderr]     Checking flakec-lexer v0.0.0 (/opt/rustwide/workdir/compiler/flakec-lexer)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> compiler/flakec-lexer/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(adt_const_params, vec_into_raw_parts)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `str::Chars` and `string::ParseError`
[INFO] [stdout]  --> compiler/flakec-lexer/src/stream.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{convert::Infallible, str::Chars, string::ParseError};
[INFO] [stdout]   |                                ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Lexer`
[INFO] [stdout]   --> compiler/flakec-lexer/src/stream.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Lexer,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> compiler/flakec-lexer/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(adt_const_params, vec_into_raw_parts)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `str::Chars` and `string::ParseError`
[INFO] [stdout]  --> compiler/flakec-lexer/src/stream.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{convert::Infallible, str::Chars, string::ParseError};
[INFO] [stdout]   |                                ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Lexer`
[INFO] [stdout]   --> compiler/flakec-lexer/src/stream.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Lexer,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `vec_into_raw_parts` has been stable since 1.93.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> compiler/flakec-lexer/src/lib.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(adt_const_params, vec_into_raw_parts)]
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `vec_into_raw_parts` has been stable since 1.93.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> compiler/flakec-lexer/src/lib.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(adt_const_params, vec_into_raw_parts)]
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flakec-lexer` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flakec-lexer` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c44df52080142730cb31d402ac08b3883e6f4f4c0c3f0ca6d33424ae717977d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c44df52080142730cb31d402ac08b3883e6f4f4c0c3f0ca6d33424ae717977d1", kill_on_drop: false }`
[INFO] [stdout] c44df52080142730cb31d402ac08b3883e6f4f4c0c3f0ca6d33424ae717977d1
