[INFO] fetching crate twibint 0.3.2...
[INFO] building twibint-0.3.2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate twibint 0.3.2 into /workspace/builds/worker-6-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-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twibint 0.3.2 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bedadd455eed9dc3fc0819b9b0722486708acb8b5993c7678817709363a6ef4
[INFO] running `Command { std: "docker" "start" "-a" "3bedadd455eed9dc3fc0819b9b0722486708acb8b5993c7678817709363a6ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bedadd455eed9dc3fc0819b9b0722486708acb8b5993c7678817709363a6ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bedadd455eed9dc3fc0819b9b0722486708acb8b5993c7678817709363a6ef4", kill_on_drop: false }`
[INFO] [stdout] 3bedadd455eed9dc3fc0819b9b0722486708acb8b5993c7678817709363a6ef4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93b14eec3a4f5a2847e9e7dba9da8b284f398f1b2ba6e5d8b5e8190d30388894
[INFO] running `Command { std: "docker" "start" "-a" "93b14eec3a4f5a2847e9e7dba9da8b284f398f1b2ba6e5d8b5e8190d30388894", 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 1.03s
[INFO] running `Command { std: "docker" "inspect" "93b14eec3a4f5a2847e9e7dba9da8b284f398f1b2ba6e5d8b5e8190d30388894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93b14eec3a4f5a2847e9e7dba9da8b284f398f1b2ba6e5d8b5e8190d30388894", kill_on_drop: false }`
[INFO] [stdout] 93b14eec3a4f5a2847e9e7dba9da8b284f398f1b2ba6e5d8b5e8190d30388894
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30530f85bf1d7977180089f7932f4551bd9794388fa8ddd8b050f52296723b7f
[INFO] running `Command { std: "docker" "start" "-a" "30530f85bf1d7977180089f7932f4551bd9794388fa8ddd8b050f52296723b7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[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 quote v1.0.33
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling syn v2.0.31
[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: 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] [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: 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.81s
[INFO] running `Command { std: "docker" "inspect" "30530f85bf1d7977180089f7932f4551bd9794388fa8ddd8b050f52296723b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30530f85bf1d7977180089f7932f4551bd9794388fa8ddd8b050f52296723b7f", kill_on_drop: false }`
[INFO] [stdout] 30530f85bf1d7977180089f7932f4551bd9794388fa8ddd8b050f52296723b7f