[INFO] fetching crate twibint 0.3.2...
[INFO] building twibint-0.3.2 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate twibint 0.3.2 into /workspace/builds/worker-4-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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twibint 0.3.2 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 031da99e6083a0cdcbf4cae4cdc60572a489fd87eca83e91e7c823420ba1a174
[INFO] running `Command { std: "docker" "start" "-a" "031da99e6083a0cdcbf4cae4cdc60572a489fd87eca83e91e7c823420ba1a174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "031da99e6083a0cdcbf4cae4cdc60572a489fd87eca83e91e7c823420ba1a174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "031da99e6083a0cdcbf4cae4cdc60572a489fd87eca83e91e7c823420ba1a174", kill_on_drop: false }`
[INFO] [stdout] 031da99e6083a0cdcbf4cae4cdc60572a489fd87eca83e91e7c823420ba1a174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a18f0b9c808eb72f6f5fe611c72c60f62846c709072b3a926e7594fbd7cd64a
[INFO] running `Command { std: "docker" "start" "-a" "6a18f0b9c808eb72f6f5fe611c72c60f62846c709072b3a926e7594fbd7cd64a", kill_on_drop: false }`
[INFO] [stderr]    Compiling twibint v0.3.2 (/opt/rustwide/workdir)
[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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "6a18f0b9c808eb72f6f5fe611c72c60f62846c709072b3a926e7594fbd7cd64a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a18f0b9c808eb72f6f5fe611c72c60f62846c709072b3a926e7594fbd7cd64a", kill_on_drop: false }`
[INFO] [stdout] 6a18f0b9c808eb72f6f5fe611c72c60f62846c709072b3a926e7594fbd7cd64a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bc13f9ad970db8cd8efef66209563d1167cc0750c18e1d41a8ee8583963f67c
[INFO] running `Command { std: "docker" "start" "-a" "4bc13f9ad970db8cd8efef66209563d1167cc0750c18e1d41a8ee8583963f67c", kill_on_drop: false }`
[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]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling typed_test_gen v0.1.2
[INFO] [stderr]    Compiling twibint v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Quotient3By2` is never used
[INFO] [stdout]   --> src/biguint/ops/algorithms/div/burnikel_ziegler.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Quotient3By2<T: Digit> {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Quotient4By2` is never used
[INFO] [stdout]   --> src/biguint/ops/algorithms/div/burnikel_ziegler.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum Quotient4By2<T: Digit> {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `MAX`, `HALF_MAX`, and `pack` are never used
[INFO] [stdout]    --> src/traits/digit.rs:124:11
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub trait DoubleDigit:
[INFO] [stdout]     |           ----------- associated items 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] 135 |     fn pack(d: &[Self::Single]) -> Self;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `div` is never used
[INFO] [stdout]    --> src/biguint/ops/algorithms/div/newton_raphson.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn div<T: Digit>(n: &BigUint<T>, d: &BigUint<T>) -> DivisionResult<BigUint<T>> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dec` and `mul` are never used
[INFO] [stdout]   --> src/biguint/ops/algorithms/div/burnikel_ziegler.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl<T: Digit> Quotient3By2<T> {
[INFO] [stdout]    | ------------------------------ methods in this implementation
[INFO] [stdout] 33 |     fn dec(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn mul(&self, a: &[T; 2], ret: &mut [T; 4]) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `pack` is never used
[INFO] [stdout]   --> src/biguint/ops/algorithms/div/burnikel_ziegler.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl<T: Digit> Quotient4By2<T> {
[INFO] [stdout]    | ------------------------------ associated function in this implementation
[INFO] [stdout] 52 |     fn pack(lsb: Quotient3By2<T>, msb: Quotient3By2<T>) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `div_3s_by_2s` is never used
[INFO] [stdout]    --> src/biguint/ops/algorithms/div/burnikel_ziegler.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn div_3s_by_2s<T: Digit>(a: &[T; 3], b: &[T; 2], r: &mut [T; 4]) -> Quotient3By2<T> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `div_4s_by_2s` is never used
[INFO] [stdout]    --> src/biguint/ops/algorithms/div/burnikel_ziegler.rs:141:4
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn div_4s_by_2s<T: Digit>(
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `div` is never used
[INFO] [stdout]    --> src/biguint/ops/algorithms/div/burnikel_ziegler.rs:316:4
[INFO] [stdout]     |
[INFO] [stdout] 316 | fn div<T: Digit>(n: &BigUint<T>, d: &BigUint<T>) -> DivisionResult<BigUint<T>> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.85s
[INFO] running `Command { std: "docker" "inspect" "4bc13f9ad970db8cd8efef66209563d1167cc0750c18e1d41a8ee8583963f67c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bc13f9ad970db8cd8efef66209563d1167cc0750c18e1d41a8ee8583963f67c", kill_on_drop: false }`
[INFO] [stdout] 4bc13f9ad970db8cd8efef66209563d1167cc0750c18e1d41a8ee8583963f67c