[INFO] cloning repository https://github.com/greenhandzpx/pascal-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/greenhandzpx/pascal-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreenhandzpx%2Fpascal-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreenhandzpx%2Fpascal-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3597f21d219b53e30ee45647f1983c22e66b34c5
[INFO] testing greenhandzpx/pascal-interpreter against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreenhandzpx%2Fpascal-interpreter" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] /workspace/builds/worker-1-tc2/source/.git/branches/: No space left on device
[INFO] testing greenhandzpx/pascal-interpreter against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreenhandzpx%2Fpascal-interpreter" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/greenhandzpx/pascal-interpreter on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/greenhandzpx/pascal-interpreter
[INFO] finished tweaking git repo https://github.com/greenhandzpx/pascal-interpreter
[INFO] tweaked toml for git repo https://github.com/greenhandzpx/pascal-interpreter written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/greenhandzpx/pascal-interpreter 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5369b79b9a0b18a2da3bfc71e762fdf11151ab623bbf05b4d63d3359ab9c836
[INFO] running `Command { std: "docker" "start" "-a" "b5369b79b9a0b18a2da3bfc71e762fdf11151ab623bbf05b4d63d3359ab9c836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5369b79b9a0b18a2da3bfc71e762fdf11151ab623bbf05b4d63d3359ab9c836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5369b79b9a0b18a2da3bfc71e762fdf11151ab623bbf05b4d63d3359ab9c836", kill_on_drop: false }`
[INFO] [stdout] b5369b79b9a0b18a2da3bfc71e762fdf11151ab623bbf05b4d63d3359ab9c836
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc9aa039d3e9fe9ece039d7fd87b1fcb2c3683c98cfdbfe4127c8d353e8bc8a0
[INFO] running `Command { std: "docker" "start" "-a" "bc9aa039d3e9fe9ece039d7fd87b1fcb2c3683c98cfdbfe4127c8d353e8bc8a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling caculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: `let` expressions in this position are unstable
[INFO] [stdout]   --> src/main.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 49 |         while let Some(ch) = self.current_char && ch == ' ' {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information
[INFO] [stdout]    = help: add `#![feature(let_chains)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2024-12-20; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `let` expressions in this position are unstable
[INFO] [stdout]   --> src/main.rs:55:15
[INFO] [stdout]    |
[INFO] [stdout] 55 |         while let Some(ch) = self.current_char && ch.is_digit(10) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information
[INFO] [stdout]    = help: add `#![feature(let_chains)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2024-12-20; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `let` expressions in this position are unstable
[INFO] [stdout]    --> src/ast/ast.rs:106:15
[INFO] [stdout]     |
[INFO] [stdout] 106 |         while let Some(ch) = self.current_char && ch == ' ' {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information
[INFO] [stdout]     = help: add `#![feature(let_chains)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2024-12-20; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `let` expressions in this position are unstable
[INFO] [stdout]    --> src/ast/ast.rs:112:15
[INFO] [stdout]     |
[INFO] [stdout] 112 |         while let Some(ch) = self.current_char && ch.is_digit(10) {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information
[INFO] [stdout]     = help: add `#![feature(let_chains)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2024-12-20; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/ast/ast.rs:246:21
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn visit(&self, node: Rc<dyn AstNode>) -> i32 {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `caculator` (bin "caculator") due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "bc9aa039d3e9fe9ece039d7fd87b1fcb2c3683c98cfdbfe4127c8d353e8bc8a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc9aa039d3e9fe9ece039d7fd87b1fcb2c3683c98cfdbfe4127c8d353e8bc8a0", kill_on_drop: false }`
[INFO] [stdout] bc9aa039d3e9fe9ece039d7fd87b1fcb2c3683c98cfdbfe4127c8d353e8bc8a0