[INFO] fetching crate byte_stream_splitter 0.1.4...
[INFO] testing byte_stream_splitter-0.1.4 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate byte_stream_splitter 0.1.4 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate byte_stream_splitter 0.1.4 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate byte_stream_splitter 0.1.4
[INFO] finished tweaking crates.io crate byte_stream_splitter 0.1.4
[INFO] tweaked toml for crates.io crate byte_stream_splitter 0.1.4 written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f33ac20f0d64a731e8161d90d04c34639b4146fd9a6e05ff8efa2ef7432b8d7
[INFO] running `Command { std: "docker" "start" "-a" "1f33ac20f0d64a731e8161d90d04c34639b4146fd9a6e05ff8efa2ef7432b8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f33ac20f0d64a731e8161d90d04c34639b4146fd9a6e05ff8efa2ef7432b8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f33ac20f0d64a731e8161d90d04c34639b4146fd9a6e05ff8efa2ef7432b8d7", kill_on_drop: false }`
[INFO] [stdout] 1f33ac20f0d64a731e8161d90d04c34639b4146fd9a6e05ff8efa2ef7432b8d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a0797bf323bb7f0c8e8878ee02f22fd80218a6a622d46fb1d2eb44840769226
[INFO] running `Command { std: "docker" "start" "-a" "6a0797bf323bb7f0c8e8878ee02f22fd80218a6a622d46fb1d2eb44840769226", kill_on_drop: false }`
[INFO] [stderr]    Compiling num_threads v0.1.3
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling byte_stream_splitter v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:84:25
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let num_bytes = try!(self.input.read_until(self.separator[0],buffer));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             try!(output.write_all(&buffer[0..num_bytes-1]));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:101:54
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let last_byte = if let Some(last_byte) = try!(self.read_until_first_separator_byte_or_eof(output)){
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 try!(output.write(&[last_byte]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:123:33
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let num_bytes = try!(self.input.read(buffer));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:130:25
[INFO] [stdout]     |
[INFO] [stdout] 130 |                         try!(output.write(&[b]));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:137:29
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   try!(output.write(&[b]));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout] 50 +     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:80:71
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut Write)->SplitResult<Option<u8>>{
[INFO] [stdout]    |                                                                       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 -     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut Write)->SplitResult<Option<u8>>{
[INFO] [stdout] 80 +     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut dyn Write)->SplitResult<Option<u8>>{
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:94:48
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn next_to_buf(&mut self, output: &mut Write) -> SplitResult<SplitType>{
[INFO] [stdout]    |                                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 -     pub fn next_to_buf(&mut self, output: &mut Write) -> SplitResult<SplitType>{
[INFO] [stdout] 94 +     pub fn next_to_buf(&mut self, output: &mut dyn Write) -> SplitResult<SplitType>{
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:45:40
[INFO] [stdout]    |
[INFO] [stdout] 45 |             SplitError::Io(ref e) => e.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "6a0797bf323bb7f0c8e8878ee02f22fd80218a6a622d46fb1d2eb44840769226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0797bf323bb7f0c8e8878ee02f22fd80218a6a622d46fb1d2eb44840769226", kill_on_drop: false }`
[INFO] [stdout] 6a0797bf323bb7f0c8e8878ee02f22fd80218a6a622d46fb1d2eb44840769226
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 919b7f68cf90bb6634e5af85f82532603b05698501aa999ec673b3b8ddaee5de
[INFO] running `Command { std: "docker" "start" "-a" "919b7f68cf90bb6634e5af85f82532603b05698501aa999ec673b3b8ddaee5de", kill_on_drop: false }`
[INFO] [stderr]    Compiling byte_stream_splitter v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:84:25
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let num_bytes = try!(self.input.read_until(self.separator[0],buffer));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             try!(output.write_all(&buffer[0..num_bytes-1]));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:101:54
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let last_byte = if let Some(last_byte) = try!(self.read_until_first_separator_byte_or_eof(output)){
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 try!(output.write(&[last_byte]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:123:33
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let num_bytes = try!(self.input.read(buffer));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:130:25
[INFO] [stdout]     |
[INFO] [stdout] 130 |                         try!(output.write(&[b]));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:137:29
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   try!(output.write(&[b]));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout] 50 +     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:80:71
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut Write)->SplitResult<Option<u8>>{
[INFO] [stdout]    |                                                                       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 -     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut Write)->SplitResult<Option<u8>>{
[INFO] [stdout] 80 +     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut dyn Write)->SplitResult<Option<u8>>{
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:94:48
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn next_to_buf(&mut self, output: &mut Write) -> SplitResult<SplitType>{
[INFO] [stdout]    |                                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 -     pub fn next_to_buf(&mut self, output: &mut Write) -> SplitResult<SplitType>{
[INFO] [stdout] 94 +     pub fn next_to_buf(&mut self, output: &mut dyn Write) -> SplitResult<SplitType>{
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:45:40
[INFO] [stdout]    |
[INFO] [stdout] 45 |             SplitError::Io(ref e) => e.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:84:25
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let num_bytes = try!(self.input.read_until(self.separator[0],buffer));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             try!(output.write_all(&buffer[0..num_bytes-1]));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:101:54
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let last_byte = if let Some(last_byte) = try!(self.read_until_first_separator_byte_or_eof(output)){
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 try!(output.write(&[last_byte]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:123:33
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let num_bytes = try!(self.input.read(buffer));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:130:25
[INFO] [stdout]     |
[INFO] [stdout] 130 |                         try!(output.write(&[b]));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:137:29
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   try!(output.write(&[b]));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout] 50 +     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:80:71
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut Write)->SplitResult<Option<u8>>{
[INFO] [stdout]    |                                                                       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 -     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut Write)->SplitResult<Option<u8>>{
[INFO] [stdout] 80 +     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut dyn Write)->SplitResult<Option<u8>>{
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:94:48
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn next_to_buf(&mut self, output: &mut Write) -> SplitResult<SplitType>{
[INFO] [stdout]    |                                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 -     pub fn next_to_buf(&mut self, output: &mut Write) -> SplitResult<SplitType>{
[INFO] [stdout] 94 +     pub fn next_to_buf(&mut self, output: &mut dyn Write) -> SplitResult<SplitType>{
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:45:40
[INFO] [stdout]    |
[INFO] [stdout] 45 |             SplitError::Io(ref e) => e.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "919b7f68cf90bb6634e5af85f82532603b05698501aa999ec673b3b8ddaee5de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "919b7f68cf90bb6634e5af85f82532603b05698501aa999ec673b3b8ddaee5de", kill_on_drop: false }`
[INFO] [stdout] 919b7f68cf90bb6634e5af85f82532603b05698501aa999ec673b3b8ddaee5de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb56a369ce7f79898bb088805b5fe477f7f7c9fa8d258ee8eb8c0b6b0f489a38
[INFO] running `Command { std: "docker" "start" "-a" "eb56a369ce7f79898bb088805b5fe477f7f7c9fa8d258ee8eb8c0b6b0f489a38", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:84:25
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let num_bytes = try!(self.input.read_until(self.separator[0],buffer));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |             try!(output.write_all(&buffer[0..num_bytes-1]));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:101:54
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let last_byte = if let Some(last_byte) = try!(self.read_until_first_separator_byte_or_eof(output)){
[INFO] [stderr]     |                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:109:17
[INFO] [stderr]     |
[INFO] [stderr] 109 |                 try!(output.write(&[last_byte]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:123:33
[INFO] [stderr]     |
[INFO] [stderr] 123 |                 let num_bytes = try!(self.input.read(buffer));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:130:25
[INFO] [stderr]     |
[INFO] [stderr] 130 |                         try!(output.write(&[b]));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:137:29
[INFO] [stderr]     |
[INFO] [stderr] 137 | ...                   try!(output.write(&[b]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:50:32
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 50 -     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr] 50 +     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:80:71
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut Write)->SplitResult<Option<u8>>{
[INFO] [stderr]    |                                                                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 80 -     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut Write)->SplitResult<Option<u8>>{
[INFO] [stderr] 80 +     fn read_until_first_separator_byte_or_eof(&mut self, output: &mut dyn Write)->SplitResult<Option<u8>>{
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:94:48
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn next_to_buf(&mut self, output: &mut Write) -> SplitResult<SplitType>{
[INFO] [stderr]    |                                                ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 94 -     pub fn next_to_buf(&mut self, output: &mut Write) -> SplitResult<SplitType>{
[INFO] [stderr] 94 +     pub fn next_to_buf(&mut self, output: &mut dyn Write) -> SplitResult<SplitType>{
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:45:40
[INFO] [stderr]    |
[INFO] [stderr] 45 |             SplitError::Io(ref e) => e.description(),
[INFO] [stderr]    |                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `byte_stream_splitter` (lib) generated 11 warnings
[INFO] [stderr] warning: `byte_stream_splitter` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/byte_stream_splitter-6a4d4ffeca5af530)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests byte_stream_splitter
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_skip_bug ... ok
[INFO] [stdout] test test_skip_bug2 ... ok
[INFO] [stdout] test test_with_prefix ... ok
[INFO] [stdout] test test_without_prefix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eb56a369ce7f79898bb088805b5fe477f7f7c9fa8d258ee8eb8c0b6b0f489a38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb56a369ce7f79898bb088805b5fe477f7f7c9fa8d258ee8eb8c0b6b0f489a38", kill_on_drop: false }`
[INFO] [stdout] eb56a369ce7f79898bb088805b5fe477f7f7c9fa8d258ee8eb8c0b6b0f489a38