[INFO] cloning repository https://github.com/mrkajetanp/c-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrkajetanp/c-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkajetanp%2Fc-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkajetanp%2Fc-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce525b2f5ae7a3cc02e12ac16b2df5fd5a97e992
[INFO] checking mrkajetanp/c-compiler against dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8 for pr-133502-27
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkajetanp%2Fc-compiler" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mrkajetanp/c-compiler
[INFO] finished tweaking git repo https://github.com/mrkajetanp/c-compiler
[INFO] tweaked toml for git repo https://github.com/mrkajetanp/c-compiler written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mrkajetanp/c-compiler on toolchain dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mrkajetanp/c-compiler 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" "+dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded if_chain v1.0.2
[INFO] [stderr]   Downloaded env_filter v0.1.2
[INFO] [stderr]   Downloaded synoptic v2.0.4
[INFO] [stderr]   Downloaded serial_test_derive v3.1.1
[INFO] [stderr]   Downloaded lliw v0.2.0
[INFO] [stderr]   Downloaded serial_test v3.1.1
[INFO] [stderr]   Downloaded colog v1.3.0
[INFO] [stderr]   Downloaded colored v2.1.0
[INFO] [stderr]   Downloaded sdd v1.7.0
[INFO] [stderr]   Downloaded rustversion v1.0.17
[INFO] [stderr]   Downloaded env_logger v0.11.5
[INFO] [stderr]   Downloaded anyhow v1.0.86
[INFO] [stderr]   Downloaded llvm-sys v180.0.0
[INFO] [stderr]   Downloaded scc v2.1.5
[INFO] [stderr]   Downloaded regex v1.10.5
[INFO] [stderr]   Downloaded regex-syntax v0.8.4
[INFO] [stderr]   Downloaded unicode-width v0.1.13
[INFO] [stderr]   Downloaded regex-automata v0.4.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c36f533e8924a726b63f9d01e781fa8c8c28c96d1d595403829afb31452ee0f5" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 155a75104493c2569acd29ad484289387d3435d65c02fa25cd737225b118e583
[INFO] running `Command { std: "docker" "start" "155a75104493c2569acd29ad484289387d3435d65c02fa25cd737225b118e583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "155a75104493c2569acd29ad484289387d3435d65c02fa25cd737225b118e583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "155a75104493c2569acd29ad484289387d3435d65c02fa25cd737225b118e583" "/opt/rustwide/cargo-home/bin/cargo" "+dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "155a75104493c2569acd29ad484289387d3435d65c02fa25cd737225b118e583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "155a75104493c2569acd29ad484289387d3435d65c02fa25cd737225b118e583" "/opt/rustwide/cargo-home/bin/cargo" "+dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking anstyle-query v1.1.1
[INFO] [stderr]     Checking anstyle v1.0.8
[INFO] [stderr]     Checking colorchoice v1.0.2
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]     Checking clap_lex v0.7.2
[INFO] [stderr]     Checking anstyle-parse v0.2.5
[INFO] [stderr]     Checking sdd v1.7.0
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking if_chain v1.0.2
[INFO] [stderr]     Checking lliw v0.2.0
[INFO] [stderr]     Checking anstream v0.6.15
[INFO] [stderr]     Checking clap_builder v4.5.11
[INFO] [stderr]     Checking scc v2.1.5
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.5
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking env_filter v0.1.2
[INFO] [stderr]     Checking synoptic v2.0.4
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking env_logger v0.11.5
[INFO] [stderr]     Checking colog v1.3.0
[INFO] [stderr]    Compiling clap_derive v4.5.11
[INFO] [stderr]    Compiling serial_test_derive v3.1.1
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]     Checking serial_test v3.1.1
[INFO] [stderr]     Checking clap v4.5.11
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]     Checking rcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/analysis/semantic.rs:166:24
[INFO] [stdout]     |
[INFO] [stdout] 166 |                     if let Some(entry) = existing
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/analysis/semantic.rs:293:12
[INFO] [stdout]     |
[INFO] [stdout] 293 |         if let Some(entry) = existing
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/analysis/typecheck.rs:257:20
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 if let Type::FunctionType(count) = ty
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/analysis/semantic.rs:166:24
[INFO] [stdout]     |
[INFO] [stdout] 166 |                     if let Some(entry) = existing
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/analysis/semantic.rs:293:12
[INFO] [stdout]     |
[INFO] [stdout] 293 |         if let Some(entry) = existing
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/analysis/typecheck.rs:257:20
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 if let Type::FunctionType(count) = ty
[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] [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 `rcc` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rcc` (lib) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "155a75104493c2569acd29ad484289387d3435d65c02fa25cd737225b118e583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "155a75104493c2569acd29ad484289387d3435d65c02fa25cd737225b118e583", kill_on_drop: false }`
[INFO] [stdout] 155a75104493c2569acd29ad484289387d3435d65c02fa25cd737225b118e583
