[INFO] fetching crate sbse 0.0.3...
[INFO] building sbse-0.0.3 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate sbse 0.0.3 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate sbse 0.0.3
[INFO] finished tweaking crates.io crate sbse 0.0.3
[INFO] tweaked toml for crates.io crate sbse 0.0.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sbse 0.0.3 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39d88b29db4789098cac2dbe96f5cf77043d5530a8a49fe4158fe4c96f423ca9
[INFO] running `Command { std: "docker" "start" "-a" "39d88b29db4789098cac2dbe96f5cf77043d5530a8a49fe4158fe4c96f423ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39d88b29db4789098cac2dbe96f5cf77043d5530a8a49fe4158fe4c96f423ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d88b29db4789098cac2dbe96f5cf77043d5530a8a49fe4158fe4c96f423ca9", kill_on_drop: false }`
[INFO] [stdout] 39d88b29db4789098cac2dbe96f5cf77043d5530a8a49fe4158fe4c96f423ca9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aef90d52e1abdaae787822a795e6e729c342e3b30f9720e792ac15fc921b4cd7
[INFO] running `Command { std: "docker" "start" "-a" "aef90d52e1abdaae787822a795e6e729c342e3b30f9720e792ac15fc921b4cd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling colored v2.2.0
[INFO] [stderr]    Compiling sbse v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling c_a_l v0.1.4
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/c_a_l-0.1.4/src/p.rs:384:11
[INFO] [stdout]     |
[INFO] [stdout] 384 |     while let Some(c) = t.peek()
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/c_a_l-0.1.4/src/p.rs:400:11
[INFO] [stdout]     |
[INFO] [stdout] 400 |     while let Some(x) = t.peek()
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/c_a_l-0.1.4/src/p.rs:428:11
[INFO] [stdout]     |
[INFO] [stdout] 428 |     while let Some(x) = t.peek()
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/c_a_l-0.1.4/src/p.rs:480:19
[INFO] [stdout]     |
[INFO] [stdout] 480 |             while let Some(x) = t.peek()
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/c_a_l-0.1.4/src/p.rs:647:11
[INFO] [stdout]     |
[INFO] [stdout] 647 |     while let Some(x) = t.peek()
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/c_a_l-0.1.4/src/p.rs:775:12
[INFO] [stdout]     |
[INFO] [stdout] 775 |         if let Some('?') = t.peek_next()
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/c_a_l-0.1.4/src/p.rs:787:16
[INFO] [stdout]     |
[INFO] [stdout] 787 |             if let Some(p) = t.last_n(2)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `c_a_l` (lib) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "aef90d52e1abdaae787822a795e6e729c342e3b30f9720e792ac15fc921b4cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aef90d52e1abdaae787822a795e6e729c342e3b30f9720e792ac15fc921b4cd7", kill_on_drop: false }`
[INFO] [stdout] aef90d52e1abdaae787822a795e6e729c342e3b30f9720e792ac15fc921b4cd7