[INFO] cloning repository https://github.com/js2xxx/cutenet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/js2xxx/cutenet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Fcutenet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Fcutenet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16672025667d83e92091ac898731c0634cedbe50
[INFO] testing js2xxx/cutenet against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Fcutenet" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/js2xxx/cutenet
[INFO] finished tweaking git repo https://github.com/js2xxx/cutenet
[INFO] tweaked toml for git repo https://github.com/js2xxx/cutenet written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/js2xxx/cutenet on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/js2xxx/cutenet 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73a692995f545c332b9e872deb7e29fa433e5fea800c02770858ac9ddd184b32
[INFO] running `Command { std: "docker" "start" "-a" "73a692995f545c332b9e872deb7e29fa433e5fea800c02770858ac9ddd184b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73a692995f545c332b9e872deb7e29fa433e5fea800c02770858ac9ddd184b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73a692995f545c332b9e872deb7e29fa433e5fea800c02770858ac9ddd184b32", kill_on_drop: false }`
[INFO] [stdout] 73a692995f545c332b9e872deb7e29fa433e5fea800c02770858ac9ddd184b32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0ae0ecc6e048df3d5c3ccb6806d7b14ced7ca33372d97a62e08e41122768429
[INFO] running `Command { std: "docker" "start" "-a" "d0ae0ecc6e048df3d5c3ccb6806d7b14ced7ca33372d97a62e08e41122768429", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cutenet-error v0.1.0 (/opt/rustwide/workdir/error)
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling cutenet-config v0.1.0 (/opt/rustwide/workdir/config)
[INFO] [stderr]    Compiling cutenet-time v0.1.0 (/opt/rustwide/workdir/time)
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling cutenet-storage v0.1.0 (/opt/rustwide/workdir/storage)
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> storage/src/rope.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 125 |         if let Some((last_pos, last)) = last_opt
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> storage/src/rope.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |         if let Some(index) = end_index.checked_sub(1)
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> storage/src/rope.rs:159:16
[INFO] [stdout]     |
[INFO] [stdout] 159 |             && let Some((pos, p)) = slice.get(index)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> storage/src/rope/btree.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |         if let Some((&cur_pos, _)) = cursor.peek_next()
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> storage/src/rope/btree.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |         if let Some((&prev_pos, prev)) = cursor.peek_prev()
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> storage/src/rope/btree.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |             if let Some((&next_pos, _)) = cursor.peek_next()
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> storage/src/rope/btree.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |             if let Some((&next_pos, _)) = cursor.peek_next()
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> storage/src/rope/btree.rs:72:16
[INFO] [stdout]    |
[INFO] [stdout] 72 |             && let Some(entry) = self.map.first_entry()
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> storage/src/rope/static.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |         if let Some(&(cur_pos, _)) = self.map.get(index)
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> storage/src/rope/static.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |         if let Some(prev_index) = index.checked_sub(1)
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> storage/src/rope/static.rs:45:16
[INFO] [stdout]    |
[INFO] [stdout] 45 |             && let Some(&mut (prev_pos, ref mut prev)) = self.map.get_mut(prev_index)
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> storage/src/rope/static.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 |             if let Some(&(next_pos, _)) = self.map.get(index)
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> storage/src/rope/static.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 |             if let Some(&(next_pos, _)) = self.map.get(next_index)
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> storage/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `let_chains` has been stable since `1.88.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> storage/src/lib.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(feature = "alloc", feature(btree_cursors))]
[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]  --> storage/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cutenet-storage` (lib) due to 15 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d0ae0ecc6e048df3d5c3ccb6806d7b14ced7ca33372d97a62e08e41122768429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0ae0ecc6e048df3d5c3ccb6806d7b14ced7ca33372d97a62e08e41122768429", kill_on_drop: false }`
[INFO] [stdout] d0ae0ecc6e048df3d5c3ccb6806d7b14ced7ca33372d97a62e08e41122768429