[INFO] updating cached repository https://github.com/nsmryan/parcel
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b30c58887cdd8b983a0d7ba3510e2d86d155d094
[INFO] checking nsmryan/parcel against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2Fparcel" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nsmryan/parcel on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nsmryan/parcel
[INFO] finished tweaking git repo https://github.com/nsmryan/parcel
[INFO] tweaked toml for git repo https://github.com/nsmryan/parcel written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/nsmryan/parcel already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4f15faaf317f7dc75c215866d8814a4aef469d884d75e6ba78677ec0745cd3f1
[INFO] running `"docker" "start" "-a" "4f15faaf317f7dc75c215866d8814a4aef469d884d75e6ba78677ec0745cd3f1"`
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]     Checking hew v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:174:52
[INFO] [stderr]     |
[INFO] [stderr] 174 | fn buffered<R, W>(mut input: R, mut output: W, f: &Fn(&mut [u8], &mut Vec<u8>)) 
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut [u8], &mut Vec<u8>)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `write_index`
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |     let mut write_index: usize = 0;
[INFO] [stderr]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_write_index`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `write_index`
[INFO] [stderr]    --> src/main.rs:314:13
[INFO] [stderr]     |
[INFO] [stderr] 314 |     let mut write_index: usize = 0;
[INFO] [stderr]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_write_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sep`
[INFO] [stderr]    --> src/main.rs:312:18
[INFO] [stderr]     |
[INFO] [stderr] 312 |                  sep: &str) {
[INFO] [stderr]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_sep`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |     let mut write_index: usize = 0;
[INFO] [stderr]     |         ----^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:314:9
[INFO] [stderr]     |
[INFO] [stderr] 314 |     let mut write_index: usize = 0;
[INFO] [stderr]     |         ----^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:473:9
[INFO] [stderr]     |
[INFO] [stderr] 473 |     let mut input_file = OpenOptions::new()
[INFO] [stderr]     |         ----^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:479:9
[INFO] [stderr]     |
[INFO] [stderr] 479 |     let mut output_file = OpenOptions::new()
[INFO] [stderr]     |         ----^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WRITE_BUFFER_SIZE_BYTES`
[INFO] [stderr]   --> src/main.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const WRITE_BUFFER_SIZE_BYTES: usize =  1024*16;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `push_to_write_buffer`
[INFO] [stderr]    --> src/main.rs:280:4
[INFO] [stderr]     |
[INFO] [stderr] 280 | fn push_to_write_buffer<W: Write>(output: &mut W,
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:174:52
[INFO] [stderr]     |
[INFO] [stderr] 174 | fn buffered<R, W>(mut input: R, mut output: W, f: &Fn(&mut [u8], &mut Vec<u8>)) 
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut [u8], &mut Vec<u8>)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:229:12
[INFO] [stderr]     |
[INFO] [stderr] 229 |     encode(input.as_bytes(), &mut output);
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                        found reference `&[u8]`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:239:12
[INFO] [stderr]     |
[INFO] [stderr] 239 |     encode(input.as_bytes(), &mut output);
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                        found reference `&[u8]`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:248:12
[INFO] [stderr]     |
[INFO] [stderr] 248 |     encode(input.as_bytes(), &mut output);
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                        found reference `&[u8]`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:257:12
[INFO] [stderr]     |
[INFO] [stderr] 257 |     encode(input.as_bytes(), &mut output);
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                        found reference `&[u8]`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:267:12
[INFO] [stderr]     |
[INFO] [stderr] 267 |     encode(input.as_bytes(), &mut output);
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                        found reference `&[u8]`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:276:12
[INFO] [stderr]     |
[INFO] [stderr] 276 |     encode(input.as_bytes(), &mut output);
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                        found reference `&[u8]`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:361:10
[INFO] [stderr]     |
[INFO] [stderr] 361 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          expected `&mut _`, found struct `std::io::Cursor`
[INFO] [stderr]     |          help: consider mutably borrowing here: `&mut Cursor::new(input)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                           found struct `std::io::Cursor<std::vec::Vec<{integer}>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:378:10
[INFO] [stderr]     |
[INFO] [stderr] 378 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          expected `&mut _`, found struct `std::io::Cursor`
[INFO] [stderr]     |          help: consider mutably borrowing here: `&mut Cursor::new(input)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                           found struct `std::io::Cursor<std::vec::Vec<{integer}>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:385:10
[INFO] [stderr]     |
[INFO] [stderr] 385 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          expected `&mut _`, found struct `std::io::Cursor`
[INFO] [stderr]     |          help: consider mutably borrowing here: `&mut Cursor::new(input)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                           found struct `std::io::Cursor<std::vec::Vec<{integer}>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:401:10
[INFO] [stderr]     |
[INFO] [stderr] 401 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          expected `&mut _`, found struct `std::io::Cursor`
[INFO] [stderr]     |          help: consider mutably borrowing here: `&mut Cursor::new(input)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                           found struct `std::io::Cursor<std::vec::Vec<{integer}>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:408:10
[INFO] [stderr]     |
[INFO] [stderr] 408 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          expected `&mut _`, found struct `std::io::Cursor`
[INFO] [stderr]     |          help: consider mutably borrowing here: `&mut Cursor::new(input)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                           found struct `std::io::Cursor<std::vec::Vec<{integer}>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:415:10
[INFO] [stderr]     |
[INFO] [stderr] 415 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          expected `&mut _`, found struct `std::io::Cursor`
[INFO] [stderr]     |          help: consider mutably borrowing here: `&mut Cursor::new(input)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                           found struct `std::io::Cursor<std::vec::Vec<{integer}>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:422:10
[INFO] [stderr]     |
[INFO] [stderr] 422 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          expected `&mut _`, found struct `std::io::Cursor`
[INFO] [stderr]     |          help: consider mutably borrowing here: `&mut Cursor::new(input)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected mutable reference `&mut _`
[INFO] [stderr]                           found struct `std::io::Cursor<std::vec::Vec<{integer}>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 13 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `hew`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4f15faaf317f7dc75c215866d8814a4aef469d884d75e6ba78677ec0745cd3f1"`
[INFO] running `"docker" "rm" "-f" "4f15faaf317f7dc75c215866d8814a4aef469d884d75e6ba78677ec0745cd3f1"`
[INFO] [stdout] 4f15faaf317f7dc75c215866d8814a4aef469d884d75e6ba78677ec0745cd3f1
