[INFO] cloning repository https://github.com/SylvanM/sylvan_number
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SylvanM/sylvan_number" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSylvanM%2Fsylvan_number", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSylvanM%2Fsylvan_number'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1041dd9707b13a023e5bcd59c5a5aa24c4172946
[INFO] checking SylvanM/sylvan_number against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSylvanM%2Fsylvan_number" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SylvanM/sylvan_number on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SylvanM/sylvan_number
[INFO] finished tweaking git repo https://github.com/SylvanM/sylvan_number
[INFO] tweaked toml for git repo https://github.com/SylvanM/sylvan_number written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/SylvanM/sylvan_number 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" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fe3e0484d6c0caf7c9cd5e2b04dda3256c275d274874dbdd7f1572eee311328
[INFO] running `Command { std: "docker" "start" "-a" "6fe3e0484d6c0caf7c9cd5e2b04dda3256c275d274874dbdd7f1572eee311328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fe3e0484d6c0caf7c9cd5e2b04dda3256c275d274874dbdd7f1572eee311328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe3e0484d6c0caf7c9cd5e2b04dda3256c275d274874dbdd7f1572eee311328", kill_on_drop: false }`
[INFO] [stdout] 6fe3e0484d6c0caf7c9cd5e2b04dda3256c275d274874dbdd7f1572eee311328
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d23c46f06e466e7a5be4b07f8add8bde7602bf98720dce01f86e0b7367a4a9d
[INFO] running `Command { std: "docker" "start" "-a" "2d23c46f06e466e7a5be4b07f8add8bde7602bf98720dce01f86e0b7367a4a9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking algebra_kit v0.1.8
[INFO] [stderr]     Checking sylvan_number v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `io::StderrLock`
[INFO] [stdout]  --> src/ubignumber.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::max, fmt::Debug, io::StderrLock, ops::{Add, AddAssign, BitOr, BitOrAssign, Div, DivAssign, Index, IndexMut, Mul, MulAssign...
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]   --> src/lib.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use rand::{thread_rng, Rng};
[INFO] [stdout]    |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::StderrLock`
[INFO] [stdout]  --> src/ubignumber.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::max, fmt::Debug, io::StderrLock, ops::{Add, AddAssign, BitOr, BitOrAssign, Div, DivAssign, Index, IndexMut, Mul, MulAssign...
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ring`
[INFO] [stdout]  --> src/ubignumber.rs:2:45
[INFO] [stdout]   |
[INFO] [stdout] 2 | use algebra_kit::algebra::{EuclideanDomain, Ring};
[INFO] [stdout]   |                                             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EuclideanDomain`
[INFO] [stdout]  --> src/ubignumber.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use algebra_kit::algebra::{EuclideanDomain, Ring};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ring`
[INFO] [stdout]  --> src/ubignumber.rs:2:45
[INFO] [stdout]   |
[INFO] [stdout] 2 | use algebra_kit::algebra::{EuclideanDomain, Ring};
[INFO] [stdout]   |                                             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EuclideanDomain`
[INFO] [stdout]  --> src/ubignumber.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use algebra_kit::algebra::{EuclideanDomain, Ring};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ring`
[INFO] [stdout]   --> src/lib.rs:12:49
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use algebra_kit::algebra::{EuclideanDomain, Ring};
[INFO] [stdout]    |                                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EuclideanDomain`
[INFO] [stdout]   --> src/lib.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use algebra_kit::algebra::{EuclideanDomain, Ring};
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `UBigNumber` to `UBigNumber`
[INFO] [stdout]    --> src/ubignumber.rs:262:48
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let mut partial_product = divisor.clone() * qhat.clone().into();
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sylvan_number` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this conversion is useless `UBigNumber` to `UBigNumber`
[INFO] [stdout]    --> src/ubignumber.rs:262:48
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let mut partial_product = divisor.clone() * qhat.clone().into();
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sylvan_number` (lib test) due to 1 previous error; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2d23c46f06e466e7a5be4b07f8add8bde7602bf98720dce01f86e0b7367a4a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d23c46f06e466e7a5be4b07f8add8bde7602bf98720dce01f86e0b7367a4a9d", kill_on_drop: false }`
[INFO] [stdout] 2d23c46f06e466e7a5be4b07f8add8bde7602bf98720dce01f86e0b7367a4a9d