[INFO] fetching crate carbon-assembler 1.6.7...
[INFO] checking carbon-assembler-1.6.7 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate carbon-assembler 1.6.7 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate carbon-assembler 1.6.7 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate carbon-assembler 1.6.7
[INFO] finished tweaking crates.io crate carbon-assembler 1.6.7
[INFO] tweaked toml for crates.io crate carbon-assembler 1.6.7 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate carbon-assembler 1.6.7 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" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86188a4fb9730bdf38c0fded3005d06d96fc07da44ab68df535e21f17666f5ee
[INFO] running `Command { std: "docker" "start" "-a" "86188a4fb9730bdf38c0fded3005d06d96fc07da44ab68df535e21f17666f5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86188a4fb9730bdf38c0fded3005d06d96fc07da44ab68df535e21f17666f5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86188a4fb9730bdf38c0fded3005d06d96fc07da44ab68df535e21f17666f5ee", kill_on_drop: false }`
[INFO] [stdout] 86188a4fb9730bdf38c0fded3005d06d96fc07da44ab68df535e21f17666f5ee
[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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70bee6317d83fa5ad0b267ffde1045dd406297110da1631087a5a45b0b6379c3
[INFO] running `Command { std: "docker" "start" "-a" "70bee6317d83fa5ad0b267ffde1045dd406297110da1631087a5a45b0b6379c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.15
[INFO] [stderr]    Compiling logos-codegen v0.13.0
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]    Compiling logos-derive v0.13.0
[INFO] [stderr]     Checking logos v0.13.0
[INFO] [stderr]     Checking clap v4.3.15
[INFO] [stderr]     Checking carbon-assembler v1.6.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/backend/assembler.rs:99:33
[INFO] [stdout]    |
[INFO] [stdout] 99 | ...                   _ => unreachable!()
[INFO] [stdout]    |                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/backend/assembler.rs:99:33
[INFO] [stdout]    |
[INFO] [stdout] 99 | ...                   _ => unreachable!()
[INFO] [stdout]    |                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `*lex` as mutable more than once at a time
[INFO] [stdout]   --> src/frontend/lexer.rs:76:28
[INFO] [stdout]    |
[INFO] [stdout] 76 | #[derive(Debug, PartialEq, Logos, Clone)]
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            `*lex` was mutably borrowed here in the previous iteration of the loop
[INFO] [stdout]    |                            first borrow later used by call
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Logos` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `*lex` as mutable more than once at a time
[INFO] [stdout]   --> src/frontend/lexer.rs:76:28
[INFO] [stdout]    |
[INFO] [stdout] 76 | #[derive(Debug, PartialEq, Logos, Clone)]
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            `*lex` was mutably borrowed here in the previous iteration of the loop
[INFO] [stdout]    |                            first borrow later used by call
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Logos` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `carbon-assembler` (bin "carbon-assembler" test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `carbon-assembler` (bin "carbon-assembler") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "70bee6317d83fa5ad0b267ffde1045dd406297110da1631087a5a45b0b6379c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70bee6317d83fa5ad0b267ffde1045dd406297110da1631087a5a45b0b6379c3", kill_on_drop: false }`
[INFO] [stdout] 70bee6317d83fa5ad0b267ffde1045dd406297110da1631087a5a45b0b6379c3