[INFO] updating cached repository https://github.com/panzi/rust-bfc
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4667209ca7afecbd4a79d78bac9261c1ddb8c238
[INFO] testing panzi/rust-bfc against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpanzi%2Frust-bfc" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/panzi/rust-bfc on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/panzi/rust-bfc
[INFO] finished tweaking git repo https://github.com/panzi/rust-bfc
[INFO] tweaked toml for git repo https://github.com/panzi/rust-bfc written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/panzi/rust-bfc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62ceea636dca2a91543fb6f18b96f986937251c32f5fc04507684a8444e611d3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "62ceea636dca2a91543fb6f18b96f986937251c32f5fc04507684a8444e611d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62ceea636dca2a91543fb6f18b96f986937251c32f5fc04507684a8444e611d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62ceea636dca2a91543fb6f18b96f986937251c32f5fc04507684a8444e611d3", kill_on_drop: false }`
[INFO] [stdout] 62ceea636dca2a91543fb6f18b96f986937251c32f5fc04507684a8444e611d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 633112c884b84716aef29339c42e8ea99600bc1b87902bc51171bcea99abfd5c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "633112c884b84716aef29339c42e8ea99600bc1b87902bc51171bcea99abfd5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling bfc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/brainfuck/codegen/generate_asm_str.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn generate_asm_str(out: &mut Write, name: &str, data: &[u8]) -> std::io::Result<()> {
[INFO] [stdout]   |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/brainfuck/codegen/generate_c_write_str.rs:4:39
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn generate_c_write_str(out: &mut Write, data: &[u8], nesting: usize) -> std::io::Result<()> {
[INFO] [stdout]   |                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/brainfuck/codegen/generate_c_runtime.rs:3:41
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn generate_c_runtime(runtime: &mut Write, cell_type: &str, pagesize: usize) -> std::io::Result<()> {
[INFO] [stdout]   |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/brainfuck/codegen/linux_x86_64.rs:387:28
[INFO] [stdout]     |
[INFO] [stdout] 387 | fn generate_move(asm: &mut Write, off: isize) -> std::io::Result<()> {
[INFO] [stdout]     |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/brainfuck/error.rs:17:35
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn print(&self, out: &mut std::io::Write, input: &str) -> std::io::Result<()> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/brainfuck/indent.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn indent(out: &mut std::io::Write, nesting: usize) -> std::io::Result<()> {
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/brainfuck/mod.rs:400:41
[INFO] [stdout]     |
[INFO] [stdout] 400 |     pub fn write_debug(&self, out: &mut Write) -> std::io::Result<()> {
[INFO] [stdout]     |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/brainfuck/mod.rs:461:38
[INFO] [stdout]     |
[INFO] [stdout] 461 |     pub fn write_bf(&self, out: &mut Write) -> std::io::Result<()> {
[INFO] [stdout]     |                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/brainfuck/mod.rs:582:27
[INFO] [stdout]     |
[INFO] [stdout] 582 | fn print_repeat(out: &mut Write, bytes: &[u8], count: usize) -> std::io::Result<()> {
[INFO] [stdout]     |                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/brainfuck/mod.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         std::mem::replace(&mut self.code[ptr], Instruct::LoopStart(end_ptr));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.12s
[INFO] running `Command { std: "docker" "inspect" "633112c884b84716aef29339c42e8ea99600bc1b87902bc51171bcea99abfd5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "633112c884b84716aef29339c42e8ea99600bc1b87902bc51171bcea99abfd5c", kill_on_drop: false }`
[INFO] [stdout] 633112c884b84716aef29339c42e8ea99600bc1b87902bc51171bcea99abfd5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2faba23127a6cc57d25fdf2b9aefe68e8ee0644a04ece6ce59e8386aab50a591
[INFO] running `Command { std: "docker" "start" "-a" "2faba23127a6cc57d25fdf2b9aefe68e8ee0644a04ece6ce59e8386aab50a591", kill_on_drop: false }`
[INFO] [stderr]    Compiling bfc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/brainfuck/codegen/generate_asm_str.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn generate_asm_str(out: &mut Write, name: &str, data: &[u8]) -> std::io::Result<()> {
[INFO] [stdout]   |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/brainfuck/codegen/generate_c_write_str.rs:4:39
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn generate_c_write_str(out: &mut Write, data: &[u8], nesting: usize) -> std::io::Result<()> {
[INFO] [stdout]   |                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/brainfuck/codegen/generate_c_runtime.rs:3:41
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn generate_c_runtime(runtime: &mut Write, cell_type: &str, pagesize: usize) -> std::io::Result<()> {
[INFO] [stdout]   |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/brainfuck/codegen/linux_x86_64.rs:387:28
[INFO] [stdout]     |
[INFO] [stdout] 387 | fn generate_move(asm: &mut Write, off: isize) -> std::io::Result<()> {
[INFO] [stdout]     |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/brainfuck/error.rs:17:35
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn print(&self, out: &mut std::io::Write, input: &str) -> std::io::Result<()> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/brainfuck/indent.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn indent(out: &mut std::io::Write, nesting: usize) -> std::io::Result<()> {
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/brainfuck/mod.rs:400:41
[INFO] [stdout]     |
[INFO] [stdout] 400 |     pub fn write_debug(&self, out: &mut Write) -> std::io::Result<()> {
[INFO] [stdout]     |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/brainfuck/mod.rs:461:38
[INFO] [stdout]     |
[INFO] [stdout] 461 |     pub fn write_bf(&self, out: &mut Write) -> std::io::Result<()> {
[INFO] [stdout]     |                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/brainfuck/mod.rs:582:27
[INFO] [stdout]     |
[INFO] [stdout] 582 | fn print_repeat(out: &mut Write, bytes: &[u8], count: usize) -> std::io::Result<()> {
[INFO] [stdout]     |                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/brainfuck/mod.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         std::mem::replace(&mut self.code[ptr], Instruct::LoopStart(end_ptr));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "2faba23127a6cc57d25fdf2b9aefe68e8ee0644a04ece6ce59e8386aab50a591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2faba23127a6cc57d25fdf2b9aefe68e8ee0644a04ece6ce59e8386aab50a591", kill_on_drop: false }`
[INFO] [stdout] 2faba23127a6cc57d25fdf2b9aefe68e8ee0644a04ece6ce59e8386aab50a591
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 17f38626dd938d5c9f9574b23199ddb2183e9e7a9be065f863167d2cfba09c73
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "17f38626dd938d5c9f9574b23199ddb2183e9e7a9be065f863167d2cfba09c73", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/brainfuck/codegen/generate_asm_str.rs:3:35
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn generate_asm_str(out: &mut Write, name: &str, data: &[u8]) -> std::io::Result<()> {
[INFO] [stderr]   |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/brainfuck/codegen/generate_c_write_str.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn generate_c_write_str(out: &mut Write, data: &[u8], nesting: usize) -> std::io::Result<()> {
[INFO] [stderr]   |                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/brainfuck/codegen/generate_c_runtime.rs:3:41
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn generate_c_runtime(runtime: &mut Write, cell_type: &str, pagesize: usize) -> std::io::Result<()> {
[INFO] [stderr]   |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/brainfuck/codegen/linux_x86_64.rs:387:28
[INFO] [stderr]     |
[INFO] [stderr] 387 | fn generate_move(asm: &mut Write, off: isize) -> std::io::Result<()> {
[INFO] [stderr]     |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/brainfuck/error.rs:17:35
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn print(&self, out: &mut std::io::Write, input: &str) -> std::io::Result<()> {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/brainfuck/indent.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn indent(out: &mut std::io::Write, nesting: usize) -> std::io::Result<()> {
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/brainfuck/mod.rs:400:41
[INFO] [stderr]     |
[INFO] [stderr] 400 |     pub fn write_debug(&self, out: &mut Write) -> std::io::Result<()> {
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/brainfuck/mod.rs:461:38
[INFO] [stderr]     |
[INFO] [stderr] 461 |     pub fn write_bf(&self, out: &mut Write) -> std::io::Result<()> {
[INFO] [stderr]     |                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/brainfuck/mod.rs:582:27
[INFO] [stderr]     |
[INFO] [stderr] 582 | fn print_repeat(out: &mut Write, bytes: &[u8], count: usize) -> std::io::Result<()> {
[INFO] [stderr]     |                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/brainfuck/mod.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         std::mem::replace(&mut self.code[ptr], Instruct::LoopStart(end_ptr));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bfc-6d6e6bbb4a471e97
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "17f38626dd938d5c9f9574b23199ddb2183e9e7a9be065f863167d2cfba09c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f38626dd938d5c9f9574b23199ddb2183e9e7a9be065f863167d2cfba09c73", kill_on_drop: false }`
[INFO] [stdout] 17f38626dd938d5c9f9574b23199ddb2183e9e7a9be065f863167d2cfba09c73