[INFO] fetching crate qred 0.1.2...
[INFO] checking qred-0.1.2 against 79c0559184f27f4433a6fbc260b950d06d4a4889 for pr-162233-crater-rollup
[INFO] extracting crate qred 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate qred 0.1.2
[INFO] finished tweaking crates.io crate qred 0.1.2
[INFO] tweaked toml for crates.io crate qred 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate qred 0.1.2 on toolchain 79c0559184f27f4433a6fbc260b950d06d4a4889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qred 0.1.2 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" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | homepage = "https://github.com/aether-flux/qred"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 29 | repository = "https://github.com/aether-flux/qred"
[INFO] [stderr]    |              -------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `qred` (manifest) generated 2 warnings
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e774fbddab2ea538e156bb3fb829f16551e9a4247d6c73c48fb61a94e5945e74
[INFO] running `Command { std: "docker" "start" "e774fbddab2ea538e156bb3fb829f16551e9a4247d6c73c48fb61a94e5945e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e774fbddab2ea538e156bb3fb829f16551e9a4247d6c73c48fb61a94e5945e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e774fbddab2ea538e156bb3fb829f16551e9a4247d6c73c48fb61a94e5945e74" "/opt/rustwide/cargo-home/bin/cargo" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e774fbddab2ea538e156bb3fb829f16551e9a4247d6c73c48fb61a94e5945e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e774fbddab2ea538e156bb3fb829f16551e9a4247d6c73c48fb61a94e5945e74" "/opt/rustwide/cargo-home/bin/cargo" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | homepage = "https://github.com/aether-flux/qred"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 29 | repository = "https://github.com/aether-flux/qred"
[INFO] [stderr]    |              -------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `qred` (manifest) generated 2 warnings
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
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[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]    Compiling zerocopy-derive v0.8.56
[INFO] [stderr]    Compiling arg_enum_proc_macro v0.3.4
[INFO] [stderr]    Compiling profiling-procmacros v1.0.18
[INFO] [stderr]    Compiling num-derive v0.4.2
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[INFO] [stderr]     Checking qred v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ImageBuffer` and `Luma`
[INFO] [stdout]  --> src/matrix.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use image::{ImageBuffer, Luma};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/matrix.rs:464:18
[INFO] [stdout]     |
[INFO] [stdout] 464 |         self.set((4*self.version + 9), 8, ModuleColor::Dark, true);
[INFO] [stdout]     |                  ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 464 -         self.set((4*self.version + 9), 8, ModuleColor::Dark, true);
[INFO] [stdout] 464 +         self.set(4*self.version + 9, 8, ModuleColor::Dark, true);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BlockSpec`
[INFO] [stdout]   --> src/lib.rs:28:31
[INFO] [stdout]    |
[INFO] [stdout] 28 | use reed::{interleave_blocks, BlockSpec, ReedSolomon};
[INFO] [stdout]    |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ImageBuffer` and `Luma`
[INFO] [stdout]  --> src/matrix.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use image::{ImageBuffer, Luma};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/matrix.rs:464:18
[INFO] [stdout]     |
[INFO] [stdout] 464 |         self.set((4*self.version + 9), 8, ModuleColor::Dark, true);
[INFO] [stdout]     |                  ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 464 -         self.set((4*self.version + 9), 8, ModuleColor::Dark, true);
[INFO] [stdout] 464 +         self.set(4*self.version + 9, 8, ModuleColor::Dark, true);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ReedSolomon`, `gf28::GF28`, `interleave_blocks`, and `mode_encoder::prepare_data`
[INFO] [stdout]    --> src/matrix.rs:523:17
[INFO] [stdout]     |
[INFO] [stdout] 523 |     use crate::{gf28::GF28, mode_encoder::prepare_data, reed::{interleave_blocks, ReedSolomon}};
[INFO] [stdout]     |                 ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^         ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BlockSpec`
[INFO] [stdout]   --> src/lib.rs:28:31
[INFO] [stdout]    |
[INFO] [stdout] 28 | use reed::{interleave_blocks, BlockSpec, ReedSolomon};
[INFO] [stdout]    |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut border = 4;
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut border = 4;
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `render_ascii` is never used
[INFO] [stdout]    --> src/matrix.rs:201:12
[INFO] [stdout]     |
[INFO] [stdout]  52 | impl Matrix {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 201 |     pub fn render_ascii(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `format_bits` is never used
[INFO] [stdout]   --> src/qr_spec.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl EcLevel {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 12 |     pub fn format_bits(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ec_level` and `total_codewords` are never read
[INFO] [stdout]   --> src/qr_spec.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct QrSpec {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 25 |     pub version: usize,
[INFO] [stdout] 26 |     pub ec_level: EcLevel,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 27 |     pub total_codewords: usize, // Total bytes
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `QrSpec` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `matrix_dim` is never used
[INFO] [stdout]   --> src/qr_spec.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl QrSpec {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 34 |     pub fn matrix_dim(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `total_data_codewords` is never read
[INFO] [stdout]   --> src/reed.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct BlockSpec {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 57 |     pub total_data_codewords: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add` is never used
[INFO] [stdout]   --> src/gf28.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl GF28 {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn add(&self, a: u8, b: u8) -> u8 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `char_count_bits` is never used
[INFO] [stdout]   --> src/mode_encoder.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Mode {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn char_count_bits(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `render_ascii` is never used
[INFO] [stdout]    --> src/matrix.rs:201:12
[INFO] [stdout]     |
[INFO] [stdout]  52 | impl Matrix {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 201 |     pub fn render_ascii(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `format_bits` is never used
[INFO] [stdout]   --> src/qr_spec.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl EcLevel {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 12 |     pub fn format_bits(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `total_codewords` is never read
[INFO] [stdout]   --> src/qr_spec.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct QrSpec {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub total_codewords: usize, // Total bytes
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `QrSpec` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `matrix_dim` is never used
[INFO] [stdout]   --> src/qr_spec.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl QrSpec {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 34 |     pub fn matrix_dim(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `total_data_codewords` is never read
[INFO] [stdout]   --> src/reed.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct BlockSpec {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 57 |     pub total_data_codewords: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add` is never used
[INFO] [stdout]   --> src/gf28.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl GF28 {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn add(&self, a: u8, b: u8) -> u8 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `char_count_bits` is never used
[INFO] [stdout]   --> src/mode_encoder.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Mode {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn char_count_bits(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.22s
[INFO] running `Command { std: "docker" "inspect" "e774fbddab2ea538e156bb3fb829f16551e9a4247d6c73c48fb61a94e5945e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e774fbddab2ea538e156bb3fb829f16551e9a4247d6c73c48fb61a94e5945e74", kill_on_drop: false }`
[INFO] [stdout] e774fbddab2ea538e156bb3fb829f16551e9a4247d6c73c48fb61a94e5945e74
