[INFO] fetching crate galois_field 0.1.11...
[INFO] testing galois_field-0.1.11 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate galois_field 0.1.11 into /workspace/builds/worker-0-tc2/source
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate galois_field 0.1.11 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d6080fa8f7161e1bfd0569fdee16060ab33f6c36419e214b2f08f583fc5a773
[INFO] running `Command { std: "docker" "start" "-a" "5d6080fa8f7161e1bfd0569fdee16060ab33f6c36419e214b2f08f583fc5a773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d6080fa8f7161e1bfd0569fdee16060ab33f6c36419e214b2f08f583fc5a773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d6080fa8f7161e1bfd0569fdee16060ab33f6c36419e214b2f08f583fc5a773", kill_on_drop: false }`
[INFO] [stdout] 5d6080fa8f7161e1bfd0569fdee16060ab33f6c36419e214b2f08f583fc5a773
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4411f2946ed3b50e38b22123f4b187f69fdfc354633ce2d6be2f9a91010266d4
[INFO] running `Command { std: "docker" "start" "-a" "4411f2946ed3b50e38b22123f4b187f69fdfc354633ce2d6be2f9a91010266d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "4411f2946ed3b50e38b22123f4b187f69fdfc354633ce2d6be2f9a91010266d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4411f2946ed3b50e38b22123f4b187f69fdfc354633ce2d6be2f9a91010266d4", kill_on_drop: false }`
[INFO] [stdout] 4411f2946ed3b50e38b22123f4b187f69fdfc354633ce2d6be2f9a91010266d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7d0da01829195d3cedecfaad069978d3f204297d639e40e6e76ae4638173eed
[INFO] running `Command { std: "docker" "start" "-a" "b7d0da01829195d3cedecfaad069978d3f204297d639e40e6e76ae4638173eed", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] 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] [stderr] error: could not compile `galois_field` (example "assign_values") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: 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] running `Command { std: "docker" "inspect" "b7d0da01829195d3cedecfaad069978d3f204297d639e40e6e76ae4638173eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7d0da01829195d3cedecfaad069978d3f204297d639e40e6e76ae4638173eed", kill_on_drop: false }`
[INFO] [stdout] b7d0da01829195d3cedecfaad069978d3f204297d639e40e6e76ae4638173eed