[INFO] cloning repository https://github.com/vladfdp/math_lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vladfdp/math_lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvladfdp%2Fmath_lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvladfdp%2Fmath_lib'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvladfdp%2Fmath_lib: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/vladfdp/math_lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vladfdp/math_lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvladfdp%2Fmath_lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvladfdp%2Fmath_lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38e6c12e5f1dd499c43923420eae567e460d0c56
[INFO] checking vladfdp/math_lib against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvladfdp%2Fmath_lib" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vladfdp/math_lib
[INFO] finished tweaking git repo https://github.com/vladfdp/math_lib
[INFO] tweaked toml for git repo https://github.com/vladfdp/math_lib written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vladfdp/math_lib on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vladfdp/math_lib 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" "+36b21637e93b038453924d3c66821089e71d8baa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf5cddd17cf8aead7cfe97cd5f580500d80a83924a57fa1c64d27ba18dd4ffae
[INFO] running `Command { std: "docker" "start" "-a" "cf5cddd17cf8aead7cfe97cd5f580500d80a83924a57fa1c64d27ba18dd4ffae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf5cddd17cf8aead7cfe97cd5f580500d80a83924a57fa1c64d27ba18dd4ffae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf5cddd17cf8aead7cfe97cd5f580500d80a83924a57fa1c64d27ba18dd4ffae", kill_on_drop: false }`
[INFO] [stdout] cf5cddd17cf8aead7cfe97cd5f580500d80a83924a57fa1c64d27ba18dd4ffae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07bc29bc6d4f1f48a3a97a5cbb7828cbd534af086e5c8d5083824b1af6e86666
[INFO] running `Command { std: "docker" "start" "-a" "07bc29bc6d4f1f48a3a97a5cbb7828cbd534af086e5c8d5083824b1af6e86666", kill_on_drop: false }`
[INFO] [stderr]     Checking math_lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::Sum`
[INFO] [stdout]  --> src/traits.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Sum;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Sum`
[INFO] [stdout]  --> src/traits.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Sum;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `One` and `Zero`
[INFO] [stdout]    --> src/lib.rs:478:29
[INFO] [stdout]     |
[INFO] [stdout] 478 |         use crate::traits::{Zero, One};
[INFO] [stdout]     |                             ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `poly::poly_ff::Polyff`
[INFO] [stdout]    --> src/lib.rs:721:13
[INFO] [stdout]     |
[INFO] [stdout] 721 |             poly::poly_ff::Polyff};
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EllipticCurvePoint`
[INFO] [stdout]    --> src/lib.rs:813:51
[INFO] [stdout]     |
[INFO] [stdout] 813 |         use crate::elliptic_curve::{EllipticCurve,EllipticCurvePoint,ECPoint};
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::poly::poly_ff::Polyff`
[INFO] [stdout]    --> src/lib.rs:927:9
[INFO] [stdout]     |
[INFO] [stdout] 927 |     use crate::poly::poly_ff::Polyff;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::poly::poly_zx::PolyZx`
[INFO] [stdout]    --> src/lib.rs:928:9
[INFO] [stdout]     |
[INFO] [stdout] 928 |     use crate::poly::poly_zx::PolyZx;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::zn::Zn`
[INFO] [stdout]    --> src/lib.rs:929:9
[INFO] [stdout]     |
[INFO] [stdout] 929 |     use crate::zn::Zn;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Inv` and `Pow`
[INFO] [stdout]    --> src/lib.rs:930:25
[INFO] [stdout]     |
[INFO] [stdout] 930 |     use crate::traits::{Pow,Inv};
[INFO] [stdout]     |                         ^^^ ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix_z::MatrixZ`
[INFO] [stdout]    --> src/lib.rs:934:9
[INFO] [stdout]     |
[INFO] [stdout] 934 |     use crate::matrix_z::MatrixZ;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::poly::poly_ring::Poly`
[INFO] [stdout]    --> src/lib.rs:935:13
[INFO] [stdout]     |
[INFO] [stdout] 935 |         use crate::poly::poly_ring::Poly;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Inv`
[INFO] [stdout]  --> src/poly/poly_ff.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::traits::{One,Zero,Inv};
[INFO] [stdout]   |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_vec`, `into_i32`, `legendre_symbol`, `is_square`, and `sqrt` are never used
[INFO] [stdout]    --> src/zn.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 127 | impl Zn {
[INFO] [stdout]     | ------- associated items in this implementation
[INFO] [stdout] 128 |
[INFO] [stdout] 129 |     pub fn from_vec(vec: Vec<i32>,n:i32)-> Vec<Zn>{ // get a vec of Zn from a vec<i32> and n
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 138 |     pub fn into_i32(vec: Vec<Zn>)-> Vec<i32> {  // get a vec of int from a vec<Zn>
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn legendre_symbol(&self)->i32{
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 |     pub fn is_square(&self) -> bool{
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn sqrt(a:Zn)->(Zn,Zn){  //using cipolla's algorithm
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `math_lib` (lib); 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/36b21637e93b038453924d3c66821089e71d8baa/bin/rustc --crate-name math_lib --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=0fd7863d85974343 -C extra-filename=-19f5b97197c61ed9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Inv`
[INFO] [stdout]  --> src/poly/poly_ff.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::traits::{One,Zero,Inv};
[INFO] [stdout]   |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_char` is never used
[INFO] [stdout]   --> src/traits.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub trait Card {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] 61 |     fn get_card(&self)-> i32;
[INFO] [stdout] 62 |     fn get_char(&self)-> i32;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_deg` is never used
[INFO] [stdout]   --> src/poly/poly_zx.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl PolyZx{
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 14 |     pub fn get_deg(&self)->usize{self.coeff.len()-1}
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_deg` is never used
[INFO] [stdout]   --> src/poly/poly_ring.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<T> Poly<T>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     T:Ring
[INFO] [stdout]    | |__________- method in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       pub fn get_deg(&self)->usize{self.coeff.len()-1}
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `frobenius_map` is never used
[INFO] [stdout]    --> src/field_extension.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 130 | impl<T:Field> FieldExtension<T>  {
[INFO] [stdout]     | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub fn frobenius_map(x:FieldExtension<T>)->FieldExtension<T>{
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> src/vector_z.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl VectorZ{
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn get(&self, index:usize)->i32{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> src/vector_ring.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<T:Ring> Vector<T>{
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn get(&self, index:usize)->T{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `GCD` should have a snake case name
[INFO] [stdout]   --> src/poly/poly_ff.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn GCD(f:Polyff<T>, g: Polyff<T>)->Polyff<T>{
[INFO] [stdout]    |            ^^^ help: convert the identifier to snake case: `gcd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MatrixZ_a` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:492:17
[INFO] [stdout]     |
[INFO] [stdout] 492 |             let MatrixZ_a = MatrixZ::new(vec![3,0,1,1],2);
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `matrix_z_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MatrixZ_b` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:493:17
[INFO] [stdout]     |
[INFO] [stdout] 493 |             let MatrixZ_b = MatrixZ::new(vec![2,4,0,1],2);
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `matrix_z_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MatrixZ` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:497:17
[INFO] [stdout]     |
[INFO] [stdout] 497 |             let MatrixZ = MatrixZ::new(vec![1,0,2,3],2);
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `matrix_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "07bc29bc6d4f1f48a3a97a5cbb7828cbd534af086e5c8d5083824b1af6e86666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07bc29bc6d4f1f48a3a97a5cbb7828cbd534af086e5c8d5083824b1af6e86666", kill_on_drop: false }`
[INFO] [stdout] 07bc29bc6d4f1f48a3a97a5cbb7828cbd534af086e5c8d5083824b1af6e86666
