[INFO] cloning repository https://github.com/nsmryan/parcel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nsmryan/parcel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2Fparcel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2Fparcel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b30c58887cdd8b983a0d7ba3510e2d86d155d094
[INFO] testing nsmryan/parcel against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2Fparcel" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nsmryan/parcel on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nsmryan/parcel 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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eaa857c3b2ea9c4371e7da9ee482b076198c1c9d92ebdd277d2e8845dc8862ff
[INFO] running `Command { std: "docker" "start" "-a" "eaa857c3b2ea9c4371e7da9ee482b076198c1c9d92ebdd277d2e8845dc8862ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaa857c3b2ea9c4371e7da9ee482b076198c1c9d92ebdd277d2e8845dc8862ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaa857c3b2ea9c4371e7da9ee482b076198c1c9d92ebdd277d2e8845dc8862ff", kill_on_drop: false }`
[INFO] [stdout] eaa857c3b2ea9c4371e7da9ee482b076198c1c9d92ebdd277d2e8845dc8862ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4257b20f9a9fb09dbe4f390d5f7c31e5c780d556e83c1cec81085a3a5d5d53e
[INFO] running `Command { std: "docker" "start" "-a" "d4257b20f9a9fb09dbe4f390d5f7c31e5c780d556e83c1cec81085a3a5d5d53e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling hew v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:174:52
[INFO] [stdout]     |
[INFO] [stdout] 174 | fn buffered<R, W>(mut input: R, mut output: W, f: &Fn(&mut [u8], &mut Vec<u8>)) 
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 174 | fn buffered<R, W>(mut input: R, mut output: W, f: &dyn Fn(&mut [u8], &mut Vec<u8>)) 
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut write_index: usize = 0;
[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: `write_index`
[INFO] [stdout]    --> src/main.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut write_index: usize = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_write_index`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:314:9
[INFO] [stdout]     |
[INFO] [stdout] 314 |     let mut write_index: usize = 0;
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sep`
[INFO] [stdout]    --> src/main.rs:312:18
[INFO] [stdout]     |
[INFO] [stdout] 312 |                  sep: &str) {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_sep`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `write_index`
[INFO] [stdout]    --> src/main.rs:314:9
[INFO] [stdout]     |
[INFO] [stdout] 314 |     let mut write_index: usize = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_write_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:473:9
[INFO] [stdout]     |
[INFO] [stdout] 473 |     let mut input_file = OpenOptions::new()
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let mut output_file = OpenOptions::new()
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WRITE_BUFFER_SIZE_BYTES` is never used
[INFO] [stdout]   --> src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const WRITE_BUFFER_SIZE_BYTES: usize =  1024*16;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_to_write_buffer` is never used
[INFO] [stdout]    --> src/main.rs:280:4
[INFO] [stdout]     |
[INFO] [stdout] 280 | fn push_to_write_buffer<W: Write>(output: &mut W,
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.93s
[INFO] running `Command { std: "docker" "inspect" "d4257b20f9a9fb09dbe4f390d5f7c31e5c780d556e83c1cec81085a3a5d5d53e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4257b20f9a9fb09dbe4f390d5f7c31e5c780d556e83c1cec81085a3a5d5d53e", kill_on_drop: false }`
[INFO] [stdout] d4257b20f9a9fb09dbe4f390d5f7c31e5c780d556e83c1cec81085a3a5d5d53e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2835210bf88a1caa79092a072329f023e37281f371187068133c6162fecc7220
[INFO] running `Command { std: "docker" "start" "-a" "2835210bf88a1caa79092a072329f023e37281f371187068133c6162fecc7220", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.6
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling quickcheck v0.6.2
[INFO] [stderr]    Compiling hew v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:174:52
[INFO] [stdout]     |
[INFO] [stdout] 174 | fn buffered<R, W>(mut input: R, mut output: W, f: &Fn(&mut [u8], &mut Vec<u8>)) 
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 174 | fn buffered<R, W>(mut input: R, mut output: W, f: &dyn Fn(&mut [u8], &mut Vec<u8>)) 
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:229:12
[INFO] [stdout]     |
[INFO] [stdout] 229 |     encode(input.as_bytes(), &mut output);
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]     |     |
[INFO] [stdout]     |     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                        found reference `&[u8]`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn encode<R: Read, W: Write>(input: &mut R, output: &mut W) {
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:239:12
[INFO] [stdout]     |
[INFO] [stdout] 239 |     encode(input.as_bytes(), &mut output);
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]     |     |
[INFO] [stdout]     |     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                        found reference `&[u8]`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn encode<R: Read, W: Write>(input: &mut R, output: &mut W) {
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:248:12
[INFO] [stdout]     |
[INFO] [stdout] 248 |     encode(input.as_bytes(), &mut output);
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]     |     |
[INFO] [stdout]     |     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                        found reference `&[u8]`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn encode<R: Read, W: Write>(input: &mut R, output: &mut W) {
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:257:12
[INFO] [stdout]     |
[INFO] [stdout] 257 |     encode(input.as_bytes(), &mut output);
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]     |     |
[INFO] [stdout]     |     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                        found reference `&[u8]`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn encode<R: Read, W: Write>(input: &mut R, output: &mut W) {
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:267:12
[INFO] [stdout]     |
[INFO] [stdout] 267 |     encode(input.as_bytes(), &mut output);
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]     |     |
[INFO] [stdout]     |     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                        found reference `&[u8]`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn encode<R: Read, W: Write>(input: &mut R, output: &mut W) {
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:276:12
[INFO] [stdout]     |
[INFO] [stdout] 276 |     encode(input.as_bytes(), &mut output);
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]     |     |
[INFO] [stdout]     |     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                        found reference `&[u8]`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn encode<R: Read, W: Write>(input: &mut R, output: &mut W) {
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:361:10
[INFO] [stdout]     |
[INFO] [stdout] 361 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |   ------ ^^^^^^^^^^^^^^^^^^ expected `&mut _`, found `Cursor<Vec<{integer}>>`
[INFO] [stdout]     |   |
[INFO] [stdout]     |   arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                           found struct `std::io::Cursor<Vec<{integer}>>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn decode<R: Read, W: Write>(input: &mut R,
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] help: consider mutably borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 361 |   decode(&mut Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:378:10
[INFO] [stdout]     |
[INFO] [stdout] 378 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |   ------ ^^^^^^^^^^^^^^^^^^ expected `&mut _`, found `Cursor<Vec<{integer}>>`
[INFO] [stdout]     |   |
[INFO] [stdout]     |   arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                           found struct `std::io::Cursor<Vec<{integer}>>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn decode<R: Read, W: Write>(input: &mut R,
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] help: consider mutably borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 378 |   decode(&mut Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:385:10
[INFO] [stdout]     |
[INFO] [stdout] 385 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |   ------ ^^^^^^^^^^^^^^^^^^ expected `&mut _`, found `Cursor<Vec<{integer}>>`
[INFO] [stdout]     |   |
[INFO] [stdout]     |   arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                           found struct `std::io::Cursor<Vec<{integer}>>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn decode<R: Read, W: Write>(input: &mut R,
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] help: consider mutably borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 385 |   decode(&mut Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:401:10
[INFO] [stdout]     |
[INFO] [stdout] 401 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |   ------ ^^^^^^^^^^^^^^^^^^ expected `&mut _`, found `Cursor<Vec<{integer}>>`
[INFO] [stdout]     |   |
[INFO] [stdout]     |   arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                           found struct `std::io::Cursor<Vec<{integer}>>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn decode<R: Read, W: Write>(input: &mut R,
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] help: consider mutably borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 401 |   decode(&mut Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:408:10
[INFO] [stdout]     |
[INFO] [stdout] 408 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |   ------ ^^^^^^^^^^^^^^^^^^ expected `&mut _`, found `Cursor<Vec<{integer}>>`
[INFO] [stdout]     |   |
[INFO] [stdout]     |   arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                           found struct `std::io::Cursor<Vec<{integer}>>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn decode<R: Read, W: Write>(input: &mut R,
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] help: consider mutably borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 408 |   decode(&mut Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:415:10
[INFO] [stdout]     |
[INFO] [stdout] 415 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |   ------ ^^^^^^^^^^^^^^^^^^ expected `&mut _`, found `Cursor<Vec<{integer}>>`
[INFO] [stdout]     |   |
[INFO] [stdout]     |   arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                           found struct `std::io::Cursor<Vec<{integer}>>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn decode<R: Read, W: Write>(input: &mut R,
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] help: consider mutably borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 415 |   decode(&mut Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:422:10
[INFO] [stdout]     |
[INFO] [stdout] 422 |   decode(Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |   ------ ^^^^^^^^^^^^^^^^^^ expected `&mut _`, found `Cursor<Vec<{integer}>>`
[INFO] [stdout]     |   |
[INFO] [stdout]     |   arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                           found struct `std::io::Cursor<Vec<{integer}>>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn decode<R: Read, W: Write>(input: &mut R,
[INFO] [stdout]     |    ^^^^^^                    -------------
[INFO] [stdout] help: consider mutably borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 422 |   decode(&mut Cursor::new(input), &mut output, line_width, word_width, case, prefix, &sep);
[INFO] [stdout]     |          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut write_index: usize = 0;
[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: `write_index`
[INFO] [stdout]    --> src/main.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut write_index: usize = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_write_index`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:314:9
[INFO] [stdout]     |
[INFO] [stdout] 314 |     let mut write_index: usize = 0;
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sep`
[INFO] [stdout]    --> src/main.rs:312:18
[INFO] [stdout]     |
[INFO] [stdout] 312 |                  sep: &str) {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_sep`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `write_index`
[INFO] [stdout]    --> src/main.rs:314:9
[INFO] [stdout]     |
[INFO] [stdout] 314 |     let mut write_index: usize = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_write_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:473:9
[INFO] [stdout]     |
[INFO] [stdout] 473 |     let mut input_file = OpenOptions::new()
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let mut output_file = OpenOptions::new()
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hew` (bin "hew" test) due to 13 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2835210bf88a1caa79092a072329f023e37281f371187068133c6162fecc7220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2835210bf88a1caa79092a072329f023e37281f371187068133c6162fecc7220", kill_on_drop: false }`
[INFO] [stdout] 2835210bf88a1caa79092a072329f023e37281f371187068133c6162fecc7220
