[INFO] cloning repository https://github.com/minghu6/netlib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/minghu6/netlib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminghu6%2Fnetlib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminghu6%2Fnetlib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5297ba265349c53d5c6226b040e9662b6032d72
[INFO] testing minghu6/netlib against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminghu6%2Fnetlib" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/minghu6/netlib
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/minghu6/netlib
[INFO] tweaked toml for git repo https://github.com/minghu6/netlib written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/minghu6/netlib 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 git repo https://github.com/minghu6/netlib 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] 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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f33063def1fe07d8d567cbf6fc6bc2fa67cd7dd007b6ba43b59fd1202b2a693d
[INFO] running `Command { std: "docker" "start" "-a" "f33063def1fe07d8d567cbf6fc6bc2fa67cd7dd007b6ba43b59fd1202b2a693d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f33063def1fe07d8d567cbf6fc6bc2fa67cd7dd007b6ba43b59fd1202b2a693d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f33063def1fe07d8d567cbf6fc6bc2fa67cd7dd007b6ba43b59fd1202b2a693d", kill_on_drop: false }`
[INFO] [stdout] f33063def1fe07d8d567cbf6fc6bc2fa67cd7dd007b6ba43b59fd1202b2a693d
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6a8f99e1ede54257c495841c26b137bc681733953ec7379b76fcc23e05b35c5
[INFO] running `Command { std: "docker" "start" "-a" "f6a8f99e1ede54257c495841c26b137bc681733953ec7379b76fcc23e05b35c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling either v1.7.0
[INFO] [stderr]    Compiling cookie v0.16.2
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling bytes v1.7.2
[INFO] [stderr]    Compiling maplit v0.1.6
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling ioctl-sys v0.8.0
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling ifstructs v0.1.1
[INFO] [stderr]    Compiling default-net v0.11.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling dns-lookup v1.0.8
[INFO] [stderr]    Compiling regex-automata v0.4.8
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling getset v0.1.3
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling regex v1.11.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling serde-big-array v0.4.1
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling netlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `netlib` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f6a8f99e1ede54257c495841c26b137bc681733953ec7379b76fcc23e05b35c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a8f99e1ede54257c495841c26b137bc681733953ec7379b76fcc23e05b35c5", kill_on_drop: false }`
[INFO] [stdout] f6a8f99e1ede54257c495841c26b137bc681733953ec7379b76fcc23e05b35c5