[INFO] fetching crate twibint 0.3.2...
[INFO] checking twibint-0.3.2 against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727
[INFO] extracting crate twibint 0.3.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate twibint 0.3.2
[INFO] finished tweaking crates.io crate twibint 0.3.2
[INFO] tweaked toml for crates.io crate twibint 0.3.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twibint 0.3.2 on toolchain 66388cc165a6c4ac98c074dc9f0281ff23528c55
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate twibint 0.3.2 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" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17ebb28f9466965d9a2f5864ee37c6c0c0f86f9ded59ee54f45a152c504106e0
[INFO] running `Command { std: "docker" "start" "-a" "17ebb28f9466965d9a2f5864ee37c6c0c0f86f9ded59ee54f45a152c504106e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17ebb28f9466965d9a2f5864ee37c6c0c0f86f9ded59ee54f45a152c504106e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17ebb28f9466965d9a2f5864ee37c6c0c0f86f9ded59ee54f45a152c504106e0", kill_on_drop: false }`
[INFO] [stdout] 17ebb28f9466965d9a2f5864ee37c6c0c0f86f9ded59ee54f45a152c504106e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fdadd0a5e41d3d146f7e224dd6ff760eeca0ee89d2ad9e1d16cdab8dba95727
[INFO] running `Command { std: "docker" "start" "-a" "1fdadd0a5e41d3d146f7e224dd6ff760eeca0ee89d2ad9e1d16cdab8dba95727", kill_on_drop: false }`
[INFO] [stderr]     Checking twibint v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stdout] warning: associated constants `MAX` and `HALF_MAX` are never used
[INFO] [stdout]    --> src/traits/digit.rs:124:11
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub trait DoubleDigit:
[INFO] [stdout]     |           ----------- associated constants in this trait
[INFO] [stdout] ...
[INFO] [stdout] 124 |     const MAX: Self;
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 125 |     const HALF_MAX: Self;
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]    Compiling typed_test_gen v0.1.2
[INFO] [stdout] error: `#[should_panic]` should only be applied to functions annotated with `#[test]` or `#[bench]`
[INFO] [stdout]    --> src/bigint/test.rs:186:1
[INFO] [stdout]     |
[INFO] [stdout] 186 | #[should_panic]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[should_panic]` should only be applied to functions annotated with `#[test]` or `#[bench]`
[INFO] [stdout]    --> src/bigint/test.rs:210:1
[INFO] [stdout]     |
[INFO] [stdout] 210 | #[should_panic]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[should_panic]` should only be applied to functions annotated with `#[test]` or `#[bench]`
[INFO] [stdout]    --> src/bigint/test.rs:217:1
[INFO] [stdout]     |
[INFO] [stdout] 217 | #[should_panic]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[should_panic]` should only be applied to functions annotated with `#[test]` or `#[bench]`
[INFO] [stdout]    --> src/bigint/test.rs:241:1
[INFO] [stdout]     |
[INFO] [stdout] 241 | #[should_panic]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[should_panic]` should only be applied to functions annotated with `#[test]` or `#[bench]`
[INFO] [stdout]    --> src/bigint/test.rs:248:1
[INFO] [stdout]     |
[INFO] [stdout] 248 | #[should_panic]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[should_panic]` should only be applied to functions annotated with `#[test]` or `#[bench]`
[INFO] [stdout]    --> src/biguint/ops/test.rs:417:1
[INFO] [stdout]     |
[INFO] [stdout] 417 | #[should_panic]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `twibint` (lib test) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "1fdadd0a5e41d3d146f7e224dd6ff760eeca0ee89d2ad9e1d16cdab8dba95727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fdadd0a5e41d3d146f7e224dd6ff760eeca0ee89d2ad9e1d16cdab8dba95727", kill_on_drop: false }`
[INFO] [stdout] 1fdadd0a5e41d3d146f7e224dd6ff760eeca0ee89d2ad9e1d16cdab8dba95727