[INFO] cloning repository https://github.com/East-China-Gold-Medal/co-digits-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/East-China-Gold-Medal/co-digits-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEast-China-Gold-Medal%2Fco-digits-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEast-China-Gold-Medal%2Fco-digits-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5879df2fb4f20c38ecfa1de5d0dddb836a58400d
[INFO] checking East-China-Gold-Medal/co-digits-rs against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEast-China-Gold-Medal%2Fco-digits-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/East-China-Gold-Medal/co-digits-rs
[INFO] finished tweaking git repo https://github.com/East-China-Gold-Medal/co-digits-rs
[INFO] tweaked toml for git repo https://github.com/East-China-Gold-Medal/co-digits-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/East-China-Gold-Medal/co-digits-rs on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/East-China-Gold-Medal/co-digits-rs 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63a0b9cd4ef9bd84df5714e22c0baf3f5fdbff6f643487d8d7b8274aa5b35666
[INFO] running `Command { std: "docker" "start" "-a" "63a0b9cd4ef9bd84df5714e22c0baf3f5fdbff6f643487d8d7b8274aa5b35666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63a0b9cd4ef9bd84df5714e22c0baf3f5fdbff6f643487d8d7b8274aa5b35666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a0b9cd4ef9bd84df5714e22c0baf3f5fdbff6f643487d8d7b8274aa5b35666", kill_on_drop: false }`
[INFO] [stdout] 63a0b9cd4ef9bd84df5714e22c0baf3f5fdbff6f643487d8d7b8274aa5b35666
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ba4a8d5d79c66f057b4bca8cb9ecf450279a5a2b1e788c96374b701199fcfdb
[INFO] running `Command { std: "docker" "start" "-a" "6ba4a8d5d79c66f057b4bca8cb9ecf450279a5a2b1e788c96374b701199fcfdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking co-digits-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Div` and `Mul`
[INFO] [stdout]  --> src/operation.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Add, Sub, Mul, Div, Neg};
[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 imports: `Div` and `Mul`
[INFO] [stdout]  --> src/operation.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Add, Sub, Mul, Div, Neg};
[INFO] [stdout]   |                          ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/float.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             std::mem::transmute(value)
[INFO] [stdout]    |             -------------------^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: replace this with: `f32::to_bits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/float.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             std::mem::transmute(value)
[INFO] [stdout]    |             -------------------^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: replace this with: `f64::to_bits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/float.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             std::mem::transmute(value)
[INFO] [stdout]    |             -------------------^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: replace this with: `f32::to_bits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/float.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             std::mem::transmute(value)
[INFO] [stdout]    |             -------------------^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: replace this with: `f64::to_bits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OverflowException`
[INFO] [stdout]  --> tests/test_uint_op.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use co_digits_rs::{OverflowException, UInt32};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]  --> tests/test_float.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         std::mem::transmute(number)
[INFO] [stdout]   |         -------------------^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: replace this with: `f32::to_bits`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "6ba4a8d5d79c66f057b4bca8cb9ecf450279a5a2b1e788c96374b701199fcfdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ba4a8d5d79c66f057b4bca8cb9ecf450279a5a2b1e788c96374b701199fcfdb", kill_on_drop: false }`
[INFO] [stdout] 6ba4a8d5d79c66f057b4bca8cb9ecf450279a5a2b1e788c96374b701199fcfdb