[INFO] cloning repository https://github.com/KOBA789/ch789-reed-solomon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KOBA789/ch789-reed-solomon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKOBA789%2Fch789-reed-solomon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKOBA789%2Fch789-reed-solomon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f3376bf757d6057f37995f12646c4aab953d65f
[INFO] building KOBA789/ch789-reed-solomon against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKOBA789%2Fch789-reed-solomon" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KOBA789/ch789-reed-solomon on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KOBA789/ch789-reed-solomon
[INFO] finished tweaking git repo https://github.com/KOBA789/ch789-reed-solomon
[INFO] tweaked toml for git repo https://github.com/KOBA789/ch789-reed-solomon written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KOBA789/ch789-reed-solomon 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d957ae468798d874f8a1148d412e4abf088359a5a6c370ed63946d9949b4b3fb
[INFO] running `Command { std: "docker" "start" "-a" "d957ae468798d874f8a1148d412e4abf088359a5a6c370ed63946d9949b4b3fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d957ae468798d874f8a1148d412e4abf088359a5a6c370ed63946d9949b4b3fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d957ae468798d874f8a1148d412e4abf088359a5a6c370ed63946d9949b4b3fb", kill_on_drop: false }`
[INFO] [stdout] d957ae468798d874f8a1148d412e4abf088359a5a6c370ed63946d9949b4b3fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 735aeacbabf0bd36f4aea27697b4602f72c07853ccfa4f7665928cf983d81e07
[INFO] running `Command { std: "docker" "start" "-a" "735aeacbabf0bd36f4aea27697b4602f72c07853ccfa4f7665928cf983d81e07", kill_on_drop: false }`
[INFO] [stderr]    Compiling ch789-reed-solomon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `inv` is never used
[INFO] [stdout]   --> src/main.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl AlphaPoly {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn inv(self) -> AlphaPoly {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `div_mod`, `assign_alpha`, and `gcd` are never used
[INFO] [stdout]    --> src/main.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl Poly {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 147 |     fn div_mod(self, rhs: Self) -> (Poly, Poly) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     fn assign_alpha(self, alpha: AlphaPoly) -> AlphaPoly {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 180 |     fn gcd(self, rhs: Self, t: usize, a_2: Poly, a_1: Poly) -> (Poly, Poly) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "735aeacbabf0bd36f4aea27697b4602f72c07853ccfa4f7665928cf983d81e07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "735aeacbabf0bd36f4aea27697b4602f72c07853ccfa4f7665928cf983d81e07", kill_on_drop: false }`
[INFO] [stdout] 735aeacbabf0bd36f4aea27697b4602f72c07853ccfa4f7665928cf983d81e07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4e565176ce4749fdbb0901b0b067e41978b48c6975761d94e76a960125a9a75
[INFO] running `Command { std: "docker" "start" "-a" "d4e565176ce4749fdbb0901b0b067e41978b48c6975761d94e76a960125a9a75", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling ch789-reed-solomon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:399:13
[INFO] [stdout]     |
[INFO] [stdout] 399 |         let rhs = Poly(vec![ALPHA_TABLE[0]]);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/main.rs:400:13
[INFO] [stdout]     |
[INFO] [stdout] 400 |         let lhs = Poly(vec![ALPHA_TABLE[0]]);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:403:13
[INFO] [stdout]     |
[INFO] [stdout] 403 |         let rhs = Poly(vec![ALPHA_TABLE[100], ALPHA_TABLE[3]])
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/main.rs:405:13
[INFO] [stdout]     |
[INFO] [stdout] 405 |         let lhs = Poly(vec![ALPHA_TABLE[100], ALPHA_TABLE[3]])
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "d4e565176ce4749fdbb0901b0b067e41978b48c6975761d94e76a960125a9a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4e565176ce4749fdbb0901b0b067e41978b48c6975761d94e76a960125a9a75", kill_on_drop: false }`
[INFO] [stdout] d4e565176ce4749fdbb0901b0b067e41978b48c6975761d94e76a960125a9a75