[INFO] fetching crate galois_field 0.1.11...
[INFO] checking galois_field-0.1.11 against try#47af3d0de9d26c7deba4cfb203b710cc3f764e91 for pr-130443
[INFO] extracting crate galois_field 0.1.11 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate galois_field 0.1.11 on toolchain 47af3d0de9d26c7deba4cfb203b710cc3f764e91
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate galois_field 0.1.11
[INFO] finished tweaking crates.io crate galois_field 0.1.11
[INFO] tweaked toml for crates.io crate galois_field 0.1.11 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate galois_field 0.1.11 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" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3efc46e7a9c81d40ccb9b279a1718e5dde68ae804d7d1e2f67b5276bf1f94a7
[INFO] running `Command { std: "docker" "start" "-a" "e3efc46e7a9c81d40ccb9b279a1718e5dde68ae804d7d1e2f67b5276bf1f94a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3efc46e7a9c81d40ccb9b279a1718e5dde68ae804d7d1e2f67b5276bf1f94a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3efc46e7a9c81d40ccb9b279a1718e5dde68ae804d7d1e2f67b5276bf1f94a7", kill_on_drop: false }`
[INFO] [stdout] e3efc46e7a9c81d40ccb9b279a1718e5dde68ae804d7d1e2f67b5276bf1f94a7
[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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d17735b19d31da31e3d99c06d6b51b5bdbc52ebdb8ba57fce5db3c26742373f
[INFO] running `Command { std: "docker" "start" "-a" "9d17735b19d31da31e3d99c06d6b51b5bdbc52ebdb8ba57fce5db3c26742373f", kill_on_drop: false }`
[INFO] [stderr]     Checking galois_field v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `quotient` is never read
[INFO] [stdout]    --> src/lib.rs:687:13
[INFO] [stdout]     |
[INFO] [stdout] 687 |             quotient = Polynomial {
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `quotient` is never read
[INFO] [stdout]    --> src/lib.rs:687:13
[INFO] [stdout]     |
[INFO] [stdout] 687 |             quotient = Polynomial {
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `answer`
[INFO] [stdout]     --> src/lib.rs:1288:13
[INFO] [stdout]      |
[INFO] [stdout] 1288 |         let answer = element0 + element1;
[INFO] [stdout]      |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_answer`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `it_works` is never used
[INFO] [stdout]     --> src/lib.rs:1278:8
[INFO] [stdout]      |
[INFO] [stdout] 1278 |     fn it_works() {
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected `!`, found `::`
[INFO] [stdout]  --> examples/assign_values.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | is_field::*;
[INFO] [stdout]   |         ^^ expected `!`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `galois_field` (example "assign_values") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/matrix.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut matrix_element:Vec<Vec<FiniteField>> = vec![
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/matrix.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut m = Matrix{
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/matrix.rs:32:6
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut sweep_matrix = m.sweep_method();
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9d17735b19d31da31e3d99c06d6b51b5bdbc52ebdb8ba57fce5db3c26742373f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d17735b19d31da31e3d99c06d6b51b5bdbc52ebdb8ba57fce5db3c26742373f", kill_on_drop: false }`
[INFO] [stdout] 9d17735b19d31da31e3d99c06d6b51b5bdbc52ebdb8ba57fce5db3c26742373f
