[INFO] fetching crate hcompress 0.1.1... [INFO] checking hcompress-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate hcompress 0.1.1 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate hcompress 0.1.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate hcompress 0.1.1 [INFO] finished tweaking crates.io crate hcompress 0.1.1 [INFO] tweaked toml for crates.io crate hcompress 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 8 packages [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7b1723479298fed14efff1ed6498735586db3b0776ff485f71e6da556f073adc [INFO] running `Command { std: "docker" "start" "-a" "7b1723479298fed14efff1ed6498735586db3b0776ff485f71e6da556f073adc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b1723479298fed14efff1ed6498735586db3b0776ff485f71e6da556f073adc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b1723479298fed14efff1ed6498735586db3b0776ff485f71e6da556f073adc", kill_on_drop: false }` [INFO] [stdout] 7b1723479298fed14efff1ed6498735586db3b0776ff485f71e6da556f073adc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d94fbf84e8cc983f0240faf4eabd582967568fbb5264dcd656da5a0d5d82045b [INFO] running `Command { std: "docker" "start" "-a" "d94fbf84e8cc983f0240faf4eabd582967568fbb5264dcd656da5a0d5d82045b", kill_on_drop: false }` [INFO] [stderr] Checking hcompress v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/lib2.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{BufRead, Cursor, Read}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/lib2.rs:2085:14 [INFO] [stdout] | [INFO] [stdout] 2085 | let ii = (n / 2); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2085 - let ii = (n / 2); [INFO] [stdout] 2085 + let ii = n / 2; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/lib.rs:685:19 [INFO] [stdout] | [INFO] [stdout] 685 | b2.buffer2 |= (bits & mask[n as usize]); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 685 - b2.buffer2 |= (bits & mask[n as usize]); [INFO] [stdout] 685 + b2.buffer2 |= bits & mask[n as usize]; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/lib2.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{BufRead, Cursor, Read}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/lib2.rs:2085:14 [INFO] [stdout] | [INFO] [stdout] 2085 | let ii = (n / 2); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2085 - let ii = (n / 2); [INFO] [stdout] 2085 + let ii = n / 2; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/lib.rs:685:19 [INFO] [stdout] | [INFO] [stdout] 685 | b2.buffer2 |= (bits & mask[n as usize]); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 685 - b2.buffer2 |= (bits & mask[n as usize]); [INFO] [stdout] 685 + b2.buffer2 |= bits & mask[n as usize]; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fs::File`, `io::Write` [INFO] [stdout] --> src/lib.rs:1177:15 [INFO] [stdout] | [INFO] [stdout] 1177 | use std::{fs::File, io::Write}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/lib2.rs:1:32 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{BufRead, Cursor, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `bit2` is never read [INFO] [stdout] --> src/lib2.rs:343:9 [INFO] [stdout] | [INFO] [stdout] 343 | bit2 = bit1; [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 `k` is never read [INFO] [stdout] --> src/lib2.rs:1719:13 [INFO] [stdout] | [INFO] [stdout] 1719 | k += 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `s00` is never read [INFO] [stdout] --> src/lib.rs:151:17 [INFO] [stdout] | [INFO] [stdout] 151 | s00 += 1; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `s10` is never read [INFO] [stdout] --> src/lib.rs:152:17 [INFO] [stdout] | [INFO] [stdout] 152 | s10 += 1; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `k` is never read [INFO] [stdout] --> src/lib.rs:1069:13 [INFO] [stdout] | [INFO] [stdout] 1069 | k += 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `k` is never read [INFO] [stdout] --> src/lib.rs:1140:13 [INFO] [stdout] | [INFO] [stdout] 1140 | k += 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `ffpmsg` is never used [INFO] [stdout] --> src/lib.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn ffpmsg(_m: &str) {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/lib2.rs:1:32 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{BufRead, Cursor, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `bit2` is never read [INFO] [stdout] --> src/lib2.rs:343:9 [INFO] [stdout] | [INFO] [stdout] 343 | bit2 = bit1; [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: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `k` is never read [INFO] [stdout] --> src/lib2.rs:1719:13 [INFO] [stdout] | [INFO] [stdout] 1719 | k += 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/lib2.rs:2349:13 [INFO] [stdout] | [INFO] [stdout] 2349 | let res = hinv(&mut a[0..], nx, ny, smooth, scale); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `s00` is never read [INFO] [stdout] --> src/lib.rs:151:17 [INFO] [stdout] | [INFO] [stdout] 151 | s00 += 1; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `s10` is never read [INFO] [stdout] --> src/lib.rs:152:17 [INFO] [stdout] | [INFO] [stdout] 152 | s10 += 1; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `k` is never read [INFO] [stdout] --> src/lib.rs:1069:13 [INFO] [stdout] | [INFO] [stdout] 1069 | k += 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `k` is never read [INFO] [stdout] --> src/lib.rs:1140:13 [INFO] [stdout] | [INFO] [stdout] 1140 | k += 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/lib.rs:1206:13 [INFO] [stdout] | [INFO] [stdout] 1206 | let res = fits_hcompress(&mut input, 4, 4, 0, &mut output); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/lib.rs:1237:13 [INFO] [stdout] | [INFO] [stdout] 1237 | let res = fits_hcompress(&mut input, 1, 10, 0, &mut output); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/lib.rs:1272:13 [INFO] [stdout] | [INFO] [stdout] 1272 | let res = fits_hcompress(&mut input, 1, 12, 0, &mut output); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/lib.rs:1307:13 [INFO] [stdout] | [INFO] [stdout] 1307 | let res = fits_hcompress(&mut input, 1, 16, 0, &mut output); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/lib.rs:1346:13 [INFO] [stdout] | [INFO] [stdout] 1346 | let res = fits_hcompress(&mut input, 1, 82, 0, &mut output); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/lib.rs:1381:13 [INFO] [stdout] | [INFO] [stdout] 1381 | let res = fits_hcompress(&mut input, 10, 1, 0, &mut output); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/lib.rs:1415:13 [INFO] [stdout] | [INFO] [stdout] 1415 | let res = fits_hcompress(&mut input, 10, 1, 0, &mut output); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `output` [INFO] [stdout] --> src/lib.rs:1463:17 [INFO] [stdout] | [INFO] [stdout] 1463 | let mut output: Vec = Vec::with_capacity(16); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:1463:13 [INFO] [stdout] | [INFO] [stdout] 1463 | let mut output: Vec = Vec::with_capacity(16); [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: unused variable: `output` [INFO] [stdout] --> src/lib.rs:1484:17 [INFO] [stdout] | [INFO] [stdout] 1484 | let mut output: Vec = Vec::with_capacity(16); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:1484:13 [INFO] [stdout] | [INFO] [stdout] 1484 | let mut output: Vec = Vec::with_capacity(16); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/lib.rs:1505:13 [INFO] [stdout] | [INFO] [stdout] 1505 | let res = bufcopy(&mut a, nx * ny, &mut buffer, &mut b, bmax, &mut b3); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/lib.rs:1514:13 [INFO] [stdout] | [INFO] [stdout] 1514 | let res = bufcopy(&mut a, nx * ny, &mut buffer, &mut b, bmax, &mut b3); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:1566:13 [INFO] [stdout] | [INFO] [stdout] 1566 | let mut array = [2, 8, 8, 85]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `ffpmsg` is never used [INFO] [stdout] --> src/lib.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn ffpmsg(_m: &str) {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 27 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s [INFO] running `Command { std: "docker" "inspect" "d94fbf84e8cc983f0240faf4eabd582967568fbb5264dcd656da5a0d5d82045b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d94fbf84e8cc983f0240faf4eabd582967568fbb5264dcd656da5a0d5d82045b", kill_on_drop: false }` [INFO] [stdout] d94fbf84e8cc983f0240faf4eabd582967568fbb5264dcd656da5a0d5d82045b