[INFO] fetching crate pi_download 0.4.0...
[INFO] testing pi_download-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate pi_download 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate pi_download 0.4.0
[INFO] finished tweaking crates.io crate pi_download 0.4.0
[INFO] tweaked toml for crates.io crate pi_download 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pi_download 0.4.0 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 pi_download 0.4.0 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] 7fbb5cffcaf7a4ff70812892ca036892e1010327731a7b1b1304613b17bab9d6
[INFO] running `Command { std: "docker" "start" "-a" "7fbb5cffcaf7a4ff70812892ca036892e1010327731a7b1b1304613b17bab9d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fbb5cffcaf7a4ff70812892ca036892e1010327731a7b1b1304613b17bab9d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fbb5cffcaf7a4ff70812892ca036892e1010327731a7b1b1304613b17bab9d6", kill_on_drop: false }`
[INFO] [stdout] 7fbb5cffcaf7a4ff70812892ca036892e1010327731a7b1b1304613b17bab9d6
[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] 75b647b1c412224f45e45ae1c8d38acd5380b03f9337d97488d8065fe43f5607
[INFO] running `Command { std: "docker" "start" "-a" "75b647b1c412224f45e45ae1c8d38acd5380b03f9337d97488d8065fe43f5607", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling once_cell v1.21.1
[INFO] [stderr]    Compiling cc v1.2.16
[INFO] [stderr]    Compiling zerocopy v0.8.23
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling litemap v0.7.5
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling openssl v0.10.71
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling indexmap v2.8.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.5
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling deranged v0.4.0
[INFO] [stderr]    Compiling tinyvec v1.9.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling time-macros v0.2.21
[INFO] [stderr]    Compiling alloc-stdlib v0.2.2
[INFO] [stderr]    Compiling cookie v0.17.0
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling pi_ext_heap v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_ext_heap-0.1.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(min_specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_ext_heap-0.1.1/src/lib.rs:145:1
[INFO] [stdout]     |
[INFO] [stdout] 145 | #![feature(inplace_iteration)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_ext_heap-0.1.1/src/lib.rs:146:1
[INFO] [stdout]     |
[INFO] [stdout] 146 | #![feature(trusted_len)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_ext_heap-0.1.1/src/lib.rs:147:1
[INFO] [stdout]     |
[INFO] [stdout] 147 | #![feature(exact_size_is_empty)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_ext_heap-0.1.1/src/lib.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | #![feature(extend_one)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling brotli-decompressor v4.0.2
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr] error: could not compile `pi_ext_heap` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "75b647b1c412224f45e45ae1c8d38acd5380b03f9337d97488d8065fe43f5607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75b647b1c412224f45e45ae1c8d38acd5380b03f9337d97488d8065fe43f5607", kill_on_drop: false }`
[INFO] [stdout] 75b647b1c412224f45e45ae1c8d38acd5380b03f9337d97488d8065fe43f5607