[INFO] cloning repository https://github.com/jimoh-sodiq/lambda-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jimoh-sodiq/lambda-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimoh-sodiq%2Flambda-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimoh-sodiq%2Flambda-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd809f3082e5222123a5b69679769909bb8b862e
[INFO] testing jimoh-sodiq/lambda-lang against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimoh-sodiq%2Flambda-lang" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jimoh-sodiq/lambda-lang
[INFO] finished tweaking git repo https://github.com/jimoh-sodiq/lambda-lang
[INFO] tweaked toml for git repo https://github.com/jimoh-sodiq/lambda-lang written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jimoh-sodiq/lambda-lang on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jimoh-sodiq/lambda-lang 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e11fec5f23ed09587038a68e3383ed1a6d356fa289f66a27a067eb49176b146e
[INFO] running `Command { std: "docker" "start" "-a" "e11fec5f23ed09587038a68e3383ed1a6d356fa289f66a27a067eb49176b146e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e11fec5f23ed09587038a68e3383ed1a6d356fa289f66a27a067eb49176b146e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e11fec5f23ed09587038a68e3383ed1a6d356fa289f66a27a067eb49176b146e", kill_on_drop: false }`
[INFO] [stdout] e11fec5f23ed09587038a68e3383ed1a6d356fa289f66a27a067eb49176b146e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdb7201a26e9d7c4ac9e7e4381867945ef476dbb6dc5553565305800e8428d4d
[INFO] running `Command { std: "docker" "start" "-a" "bdb7201a26e9d7c4ac9e7e4381867945ef476dbb6dc5553565305800e8428d4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling regex-automata v0.4.8
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling lisperator-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/streamer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[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 variable: `ch`
[INFO] [stdout]   --> src/streamer.rs:57:27
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn is_id_start(&self, ch: &char) -> bool {
[INFO] [stdout]    |                           ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_dot` is never read
[INFO] [stdout]   --> src/streamer.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                     has_dot = true;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `callback`
[INFO] [stdout]    --> src/streamer.rs:106:13
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let callback = |ch: &char| self.is_id(ch);
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_callback`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/streamer.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         self.read_while(|ch| self.is_whitespace(ch));
[INFO] [stdout]     |         ^^^^^----------^----^----^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |    |          |    |
[INFO] [stdout]     |         |    |          |    first borrow occurs due to use of `*self` in closure
[INFO] [stdout]     |         |    |          immutable borrow occurs here
[INFO] [stdout]     |         |    immutable borrow later used by call
[INFO] [stdout]     |         mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/streamer.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 self.read_while(|char| self.is_op_char(*char)),
[INFO] [stdout]     |                 ^^^^^----------^------^----^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |    |          |      |
[INFO] [stdout]     |                 |    |          |      first borrow occurs due to use of `*self` in closure
[INFO] [stdout]     |                 |    |          immutable borrow occurs here
[INFO] [stdout]     |                 |    immutable borrow later used by call
[INFO] [stdout]     |                 mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lisperator-rust` (bin "lisperator-rust") due to 2 previous errors; 5 warnings emitted
[INFO] [stdout] warning: unused variable: `next_value`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let next_value: char = input_stream.next();
[INFO] [stdout]   |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bdb7201a26e9d7c4ac9e7e4381867945ef476dbb6dc5553565305800e8428d4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdb7201a26e9d7c4ac9e7e4381867945ef476dbb6dc5553565305800e8428d4d", kill_on_drop: false }`
[INFO] [stdout] bdb7201a26e9d7c4ac9e7e4381867945ef476dbb6dc5553565305800e8428d4d
