[INFO] fetching crate pi_bon 0.3.6...
[INFO] testing pi_bon-0.3.6 against 1.95.0 for beta-1.96-2
[INFO] extracting crate pi_bon 0.3.6 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate pi_bon 0.3.6
[INFO] finished tweaking crates.io crate pi_bon 0.3.6
[INFO] tweaked toml for crates.io crate pi_bon 0.3.6 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pi_bon 0.3.6 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pi_bon 0.3.6 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-bigint v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 207f7ada23ad84deaaabf103d1173b77de2b7d2b6e72035f535da3278969dee3
[INFO] running `Command { std: "docker" "start" "-a" "207f7ada23ad84deaaabf103d1173b77de2b7d2b6e72035f535da3278969dee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "207f7ada23ad84deaaabf103d1173b77de2b7d2b6e72035f535da3278969dee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "207f7ada23ad84deaaabf103d1173b77de2b7d2b6e72035f535da3278969dee3", kill_on_drop: false }`
[INFO] [stdout] 207f7ada23ad84deaaabf103d1173b77de2b7d2b6e72035f535da3278969dee3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d024667a90a96ebb6649a1a2aa10213c386a55d22304c9241764f5173e1e9b7
[INFO] running `Command { std: "docker" "start" "-a" "2d024667a90a96ebb6649a1a2aa10213c386a55d22304c9241764f5173e1e9b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling pi_bon v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:46:1
[INFO] [stdout]    |
[INFO] [stdout] 46 | #![feature(exclusive_range_pattern)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `exclusive_range_pattern` has been stable since `1.80.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pi_bon` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2d024667a90a96ebb6649a1a2aa10213c386a55d22304c9241764f5173e1e9b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d024667a90a96ebb6649a1a2aa10213c386a55d22304c9241764f5173e1e9b7", kill_on_drop: false }`
[INFO] [stdout] 2d024667a90a96ebb6649a1a2aa10213c386a55d22304c9241764f5173e1e9b7
