[INFO] fetching crate fax 0.3.0...
[INFO] testing fax-0.3.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate fax 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate fax 0.3.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fax 0.3.0
[INFO] tweaked toml for crates.io crate fax 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fax 0.3.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fax 0.3.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9
[INFO] running `Command { std: "docker" "start" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9", 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" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling fax v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lib.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Map`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Map;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Bytes` and `self`
[INFO] [stdout]  --> src/decoder.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Bytes, Read};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EDFB_HALF` and `EOL`
[INFO] [stdout]  --> src/decoder.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::maps::{black, mode, white, Mode, EDFB_HALF, EOL};
[INFO] [stdout]   |                                             ^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/decoder.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Bytes, Read};
[INFO] [stdout]   |                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/decoder.rs:339:17
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn line(&self) -> Line {
[INFO] [stdout]     |                 ^^^^^     ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn line(&self) -> Line<'_> {
[INFO] [stdout]     |                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling zune-core v0.5.1
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling weezl v0.1.12
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lib.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Map`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Map;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Bytes` and `self`
[INFO] [stdout]  --> src/decoder.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Bytes, Read};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EDFB_HALF` and `EOL`
[INFO] [stdout]  --> src/decoder.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::maps::{black, mode, white, Mode, EDFB_HALF, EOL};
[INFO] [stdout]   |                                             ^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/decoder.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Bytes, Read};
[INFO] [stdout]   |                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/decoder.rs:339:17
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn line(&self) -> Line {
[INFO] [stdout]     |                 ^^^^^     ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn line(&self) -> Line<'_> {
[INFO] [stdout]     |                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling zune-jpeg v0.5.15
[INFO] [stderr]    Compiling flate2 v1.0.34
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling fax_derive v0.2.0
[INFO] [stderr]    Compiling fax v0.2.6
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling tiff v0.11.3
[INFO] [stderr]    Compiling fax v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> examples/check.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::{self, File};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> examples/check.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/check.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut buf = vec![0; w as usize * h as usize];
[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: unused variable: `h`
[INFO] [stdout]   --> examples/check.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let h: u32 = h.parse().unwrap();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> examples/check.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut buf = vec![0; w as usize * h as usize];
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lib.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Map`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Map;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Bytes` and `self`
[INFO] [stdout]  --> src/decoder.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Bytes, Read};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EDFB_HALF` and `EOL`
[INFO] [stdout]  --> src/decoder.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::maps::{black, mode, white, Mode, EDFB_HALF, EOL};
[INFO] [stdout]   |                                             ^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `convert::Infallible`
[INFO] [stdout]  --> examples/validate.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{convert::Infallible, fs};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/validate.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         self.reader.consume(bits.len);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let _ = self.reader.consume(bits.len);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ByteReader`
[INFO] [stdout]  --> examples/pbm2fax.rs:1:47
[INFO] [stdout]   |
[INFO] [stdout] 1 | use fax::{encoder::Encoder, slice_bits, tiff, ByteReader, Color, VecWriter};
[INFO] [stdout]   |                                               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/decoder.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Bytes, Read};
[INFO] [stdout]   |                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/decoder.rs:339:17
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn line(&self) -> Line {
[INFO] [stdout]     |                 ^^^^^     ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn line(&self) -> Line<'_> {
[INFO] [stdout]     |                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains unused formatting placeholders
[INFO] [stdout]    --> src/decoder.rs:481:65
[INFO] [stdout]     |
[INFO] [stdout] 481 |                 "decoder produced non-canonical transition list {decoded_line:?} \
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 482 |                  (contains width={width}); transitions should all be < width"
[INFO] [stdout]     |                                  ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add the missing arguments
[INFO] [stdout]     |
[INFO] [stdout] 482 |                  (contains width={width}); transitions should all be < width", ...
[INFO] [stdout]     |                                                                              +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 481 |                 "{}", "decoder produced non-canonical transition list {decoded_line:?} \
[INFO] [stdout]     |                 +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitWriter`, `Bits`, `Color`, `VecWriter`, and `decoder::pels`
[INFO] [stdout]  --> examples/fax2tiff.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use fax::{decoder, decoder::pels, BitWriter, Bits, Color, VecWriter};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^  ^^^^^^^^^  ^^^^  ^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> examples/fax2tiff.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::{self, File};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> examples/fax2tiff.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transitions`
[INFO] [stdout]   --> examples/fax2tiff.rs:14:60
[INFO] [stdout]    |
[INFO] [stdout] 14 |     decoder::decode_g4(data.iter().cloned(), width, None, |transitions| {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transitions`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 21.80s
[INFO] running `Command { std: "docker" "inspect" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/lib.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{self, Read};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::Map`
[INFO] [stderr]  --> src/lib.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::iter::Map;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Bytes` and `self`
[INFO] [stderr]  --> src/decoder.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Bytes, Read};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `EDFB_HALF` and `EOL`
[INFO] [stderr]  --> src/decoder.rs:4:45
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::maps::{black, mode, white, Mode, EDFB_HALF, EOL};
[INFO] [stderr]   |                                             ^^^^^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/lib.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{self, Read};
[INFO] [stderr]   |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/decoder.rs:2:28
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Bytes, Read};
[INFO] [stderr]   |                            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/decoder.rs:339:17
[INFO] [stderr]     |
[INFO] [stderr] 339 |     pub fn line(&self) -> Line {
[INFO] [stderr]     |                 ^^^^^     ^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 339 |     pub fn line(&self) -> Line<'_> {
[INFO] [stderr]     |                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fax` (lib) generated 7 warnings (run `cargo fix --lib -p fax` to apply 5 suggestions)
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> examples/check.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::{self, File};
[INFO] [stderr]   |                     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> examples/check.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/check.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut buf = vec![0; w as usize * h as usize];
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]   --> examples/check.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let h: u32 = h.parse().unwrap();
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> examples/check.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut buf = vec![0; w as usize * h as usize];
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ByteReader`
[INFO] [stderr]  --> examples/pbm2fax.rs:1:47
[INFO] [stderr]   |
[INFO] [stderr] 1 | use fax::{encoder::Encoder, slice_bits, tiff, ByteReader, Color, VecWriter};
[INFO] [stderr]   |                                               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BitWriter`, `Bits`, `Color`, `VecWriter`, and `decoder::pels`
[INFO] [stderr]  --> examples/fax2tiff.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use fax::{decoder, decoder::pels, BitWriter, Bits, Color, VecWriter};
[INFO] [stderr]   |                    ^^^^^^^^^^^^^  ^^^^^^^^^  ^^^^  ^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> examples/fax2tiff.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::{self, File};
[INFO] [stderr]   |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> examples/fax2tiff.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transitions`
[INFO] [stderr]   --> examples/fax2tiff.rs:14:60
[INFO] [stderr]    |
[INFO] [stderr] 14 |     decoder::decode_g4(data.iter().cloned(), width, None, |transitions| {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transitions`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `convert::Infallible`
[INFO] [stderr]  --> examples/validate.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::{convert::Infallible, fs};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/validate.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         self.reader.consume(bits.len);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let _ = self.reader.consume(bits.len);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains unused formatting placeholders
[INFO] [stderr]    --> src/decoder.rs:481:65
[INFO] [stderr]     |
[INFO] [stderr] 481 |                 "decoder produced non-canonical transition list {decoded_line:?} \
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^^^^^^
[INFO] [stderr] 482 |                  (contains width={width}); transitions should all be < width"
[INFO] [stderr]     |                                  ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: add the missing arguments
[INFO] [stderr]     |
[INFO] [stderr] 482 |                  (contains width={width}); transitions should all be < width", ...
[INFO] [stderr]     |                                                                              +++++
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]     |
[INFO] [stderr] 481 |                 "{}", "decoder produced non-canonical transition list {decoded_line:?} \
[INFO] [stderr]     |                 +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fax` (example "check") generated 5 warnings (run `cargo fix --example "check" -p fax` to apply 4 suggestions)
[INFO] [stderr] warning: `fax` (example "pbm2fax") generated 1 warning (run `cargo fix --example "pbm2fax" -p fax` to apply 1 suggestion)
[INFO] [stderr] warning: `fax` (example "fax2tiff") generated 4 warnings (run `cargo fix --example "fax2tiff" -p fax` to apply 4 suggestions)
[INFO] [stderr] warning: `fax` (example "validate") generated 2 warnings (run `cargo fix --example "validate" -p fax` to apply 1 suggestion)
[INFO] [stderr] warning: `fax` (lib test) generated 8 warnings (7 duplicates) (run `cargo fix --lib -p fax --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/fax-495b71ab4d6e35ef)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test decoder::tests::g3_random_bytes_no_panic ... ok
[INFO] [stdout] test test_peek_over_16_returns_none ... ok
[INFO] [stdout] test test_bits ... ok
[INFO] [stdout] test test_consume_more_than_valid_saturates ... ok
[INFO] [stdout] test decoder::tests::g4_large_width_no_overflow ... ok
[INFO] [stdout] test tests::test_group3_with_fill_bits ... ok
[INFO] [stdout] test decoder::tests::g4_roundtrip_width_boundary_transition ... ok
[INFO] [stdout] test tests::test_group3_all_white_line ... ok
[INFO] [stdout] test tests::test_group3_mixed_line ... ok
[INFO] [stdout] test decoder::tests::g4_roundtrip_canonical_form ... ok
[INFO] [stdout] test decoder::tests::g4_fuzz_crash_horizontal_overflow ... ok
[INFO] [stdout] test tests::test_group3_multiple_lines ... ok
[INFO] [stdout] test decoder::tests::g4_zero_width_no_panic ... ok
[INFO] [stdout] test decoder::tests::g3_fuzz_crash_run_length_overflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/check.rs (/opt/rustwide/target/release/deps/check-64bbd1e2fe7de9dc)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test roundtrip_encode_test_images ... FAILED
[INFO] [stdout] test decode_test_images ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- roundtrip_encode_test_images stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'roundtrip_encode_test_images' (708) panicked at tests/check.rs:84:35:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x63f630964101 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x63f63097874a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x63f63096893c - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x63f63093fbf6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x63f63095c339 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x63f6308f4640 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x63f63095c4f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x63f63093fca2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x63f6309387c9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x63f63094089d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x63f630978e7c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x63f630978c52 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x63f6308dcf0b - <check[b5ab7b3618d64f1a]::roundtrip_encode_test_images::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x63f6308e792b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   14:     0x63f6308f4f95 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   15:     0x63f6308ee854 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x63f6308f80f2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x63f6309636b9 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x767830345dfa - <unknown>
[INFO] [stdout]   19:     0x7678303d93d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- decode_test_images stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'decode_test_images' (707) panicked at tests/check.rs:31:35:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x63f630964101 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x63f63097874a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x63f63096893c - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x63f63093fbf6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x63f63095c339 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x63f6308f4640 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x63f63095c4f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x63f63093fca2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x63f6309387c9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x63f63094089d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x63f630978e7c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x63f630978c52 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x63f6308dbaa5 - <check[b5ab7b3618d64f1a]::decode_test_images::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x63f6308e792b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   14:     0x63f6308f4f95 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   15:     0x63f6308ee854 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stderr] error: test failed, to rerun pass `--test check`
[INFO] [stdout]   16:     0x63f6308f80f2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x63f6309636b9 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x767830345dfa - <unknown>
[INFO] [stdout]   19:     0x7678303d93d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     decode_test_images
[INFO] [stdout]     roundtrip_encode_test_images
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9", kill_on_drop: false }`
[INFO] [stdout] c3d6b5b78cc0239f9a139c322e68ab49206082be260e1400fe0be245063eedb9
