[INFO] fetching crate karics 0.2.2...
[INFO] testing karics-0.2.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate karics 0.2.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate karics 0.2.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate karics 0.2.2
[INFO] tweaked toml for crates.io crate karics 0.2.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate karics 0.2.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate karics 0.2.2 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b7ef17179d3390f9c8b3f6537c87ae2d3f2fdbf0399919373c10ec0d3232e65
[INFO] running `Command { std: "docker" "start" "-a" "9b7ef17179d3390f9c8b3f6537c87ae2d3f2fdbf0399919373c10ec0d3232e65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b7ef17179d3390f9c8b3f6537c87ae2d3f2fdbf0399919373c10ec0d3232e65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b7ef17179d3390f9c8b3f6537c87ae2d3f2fdbf0399919373c10ec0d3232e65", kill_on_drop: false }`
[INFO] [stdout] 9b7ef17179d3390f9c8b3f6537c87ae2d3f2fdbf0399919373c10ec0d3232e65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d9921195439cdae759d9b1e55aa00b909e7f069086f41db918ff7375edb1b39
[INFO] running `Command { std: "docker" "start" "-a" "9d9921195439cdae759d9b1e55aa00b909e7f069086f41db918ff7375edb1b39", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.19
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling bytes v1.10.0
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling serde_json v1.0.139
[INFO] [stderr]    Compiling crossbeam-channel v0.5.14
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling httparse v1.10.0
[INFO] [stderr]    Compiling tokio v1.43.0
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling generator v0.8.4
[INFO] [stderr]    Compiling may_queue v0.1.23
[INFO] [stderr]    Compiling may v0.3.49
[INFO] [stderr]    Compiling http v1.2.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling syn v2.0.95
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling hyper v1.6.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling core_affinity v0.8.1
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling karics v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/http_server.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write};
[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 import: `bytes::Buf`
[INFO] [stdout]   --> src/http_server.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use bytes::Buf;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufMut`
[INFO] [stdout]   --> src/http_server.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | use bytes::{BufMut, BytesMut};
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `nonblock_read` in this scope
[INFO] [stdout]    --> src/http_server.rs:104:28
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let read_blocked = nonblock_read(stream.inner_mut(), &mut req_buf)?;
[INFO] [stdout]     |                            ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `nonblock_write` in this scope
[INFO] [stdout]    --> src/http_server.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         nonblock_write(stream.inner_mut(), &mut rsp_buf)?;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `karics` (lib) due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9d9921195439cdae759d9b1e55aa00b909e7f069086f41db918ff7375edb1b39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d9921195439cdae759d9b1e55aa00b909e7f069086f41db918ff7375edb1b39", kill_on_drop: false }`
[INFO] [stdout] 9d9921195439cdae759d9b1e55aa00b909e7f069086f41db918ff7375edb1b39