[INFO] fetching crate hmath 0.1.17...
[INFO] checking hmath-0.1.17 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate hmath 0.1.17 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate hmath 0.1.17 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hmath 0.1.17
[INFO] finished tweaking crates.io crate hmath 0.1.17
[INFO] tweaked toml for crates.io crate hmath 0.1.17 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15a0705718df924de9c2cd915b93c1a6b3942260be85f431a0a28cda3f40d510
[INFO] running `Command { std: "docker" "start" "-a" "15a0705718df924de9c2cd915b93c1a6b3942260be85f431a0a28cda3f40d510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15a0705718df924de9c2cd915b93c1a6b3942260be85f431a0a28cda3f40d510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15a0705718df924de9c2cd915b93c1a6b3942260be85f431a0a28cda3f40d510", kill_on_drop: false }`
[INFO] [stdout] 15a0705718df924de9c2cd915b93c1a6b3942260be85f431a0a28cda3f40d510
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8efff07b3f3222208f401668a24a748df42a538b7fb386ddbfb256ff09c9a694
[INFO] running `Command { std: "docker" "start" "-a" "8efff07b3f3222208f401668a24a748df42a538b7fb386ddbfb256ff09c9a694", kill_on_drop: false }`
[INFO] [stderr]     Checking hmath v0.1.17 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/poly/from_points.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         Err(e) => {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/poly.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn add(&self, other: &Polynomial) -> Self {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/poly.rs:60:31
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn add_mut(&mut self, other: &Polynomial) {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/poly.rs:96:23
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn mul(&self, other: &Polynomial) -> Self {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/poly.rs:100:31
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn mul_mut(&mut self, other: &Polynomial) {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/poly/from_points.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         Err(e) => {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/poly.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn add(&self, other: &Polynomial) -> Self {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/poly.rs:60:31
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn add_mut(&mut self, other: &Polynomial) {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/poly.rs:96:23
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn mul(&self, other: &Polynomial) -> Self {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/poly.rs:100:31
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn mul_mut(&mut self, other: &Polynomial) {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "8efff07b3f3222208f401668a24a748df42a538b7fb386ddbfb256ff09c9a694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8efff07b3f3222208f401668a24a748df42a538b7fb386ddbfb256ff09c9a694", kill_on_drop: false }`
[INFO] [stdout] 8efff07b3f3222208f401668a24a748df42a538b7fb386ddbfb256ff09c9a694