[INFO] fetching crate rwutil 2.0.0...
[INFO] testing rwutil-2.0.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rwutil 2.0.0 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate rwutil 2.0.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rwutil 2.0.0
[INFO] finished tweaking crates.io crate rwutil 2.0.0
[INFO] tweaked toml for crates.io crate rwutil 2.0.0 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8f640141c9189ccf7fb74d53e341e12fdb6693f6c5057d2d35f990ad3bc8da2
[INFO] running `Command { std: "docker" "start" "-a" "d8f640141c9189ccf7fb74d53e341e12fdb6693f6c5057d2d35f990ad3bc8da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8f640141c9189ccf7fb74d53e341e12fdb6693f6c5057d2d35f990ad3bc8da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8f640141c9189ccf7fb74d53e341e12fdb6693f6c5057d2d35f990ad3bc8da2", kill_on_drop: false }`
[INFO] [stdout] d8f640141c9189ccf7fb74d53e341e12fdb6693f6c5057d2d35f990ad3bc8da2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a31fdd4403c7b11f7da531c46fef1a6869a87bf3d501c0fc239ae636e6ca567
[INFO] running `Command { std: "docker" "start" "-a" "9a31fdd4403c7b11f7da531c46fef1a6869a87bf3d501c0fc239ae636e6ca567", kill_on_drop: false }`
[INFO] [stderr]    Compiling rwutil v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bytes0.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |         Ok(try!(result))
[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/bytes0.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         try!(self.write_all(data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bytes0.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         try!(self.write_all(&[0; 1]));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         try!(self.write_u8(data.len() as u8));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         try!(self.write_u16::<T>(data.len() as u16));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         try!(self.write_u32::<T>(data.len() as u32));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         try!(self.write_u64::<T>(data.len() as u64));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let len = try!(self.read_u8());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let len = try!(self.read_u16::<T>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:94:19
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let len = try!(self.read_u32::<T>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/length_prefixed.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/length_prefixed.rs:104:19
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let len = try!(self.read_u64::<T>());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "9a31fdd4403c7b11f7da531c46fef1a6869a87bf3d501c0fc239ae636e6ca567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a31fdd4403c7b11f7da531c46fef1a6869a87bf3d501c0fc239ae636e6ca567", kill_on_drop: false }`
[INFO] [stdout] 9a31fdd4403c7b11f7da531c46fef1a6869a87bf3d501c0fc239ae636e6ca567
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fe94e1781d689ae6081b7a2158b326eeb12893a5196fb39563cbcfdc5a527f8
[INFO] running `Command { std: "docker" "start" "-a" "2fe94e1781d689ae6081b7a2158b326eeb12893a5196fb39563cbcfdc5a527f8", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bytes0.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |         Ok(try!(result))
[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/bytes0.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         try!(self.write_all(data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bytes0.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         try!(self.write_all(&[0; 1]));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         try!(self.write_u8(data.len() as u8));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         try!(self.write_u16::<T>(data.len() as u16));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         try!(self.write_u32::<T>(data.len() as u32));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         try!(self.write_u64::<T>(data.len() as u64));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let len = try!(self.read_u8());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let len = try!(self.read_u16::<T>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:94:19
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let len = try!(self.read_u32::<T>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/length_prefixed.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/length_prefixed.rs:104:19
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let len = try!(self.read_u64::<T>());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rwutil v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bytes0.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |         Ok(try!(result))
[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/bytes0.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         try!(self.write_all(data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bytes0.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         try!(self.write_all(&[0; 1]));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         try!(self.write_u8(data.len() as u8));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         try!(self.write_u16::<T>(data.len() as u16));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         try!(self.write_u32::<T>(data.len() as u32));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         try!(self.write_u64::<T>(data.len() as u64));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         try!(self.write_all(&data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let len = try!(self.read_u8());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let len = try!(self.read_u16::<T>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/length_prefixed.rs:94:19
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let len = try!(self.read_u32::<T>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/length_prefixed.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         try!(self.read_exact(&mut buf));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/length_prefixed.rs:104:19
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let len = try!(self.read_u64::<T>());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "2fe94e1781d689ae6081b7a2158b326eeb12893a5196fb39563cbcfdc5a527f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fe94e1781d689ae6081b7a2158b326eeb12893a5196fb39563cbcfdc5a527f8", kill_on_drop: false }`
[INFO] [stdout] 2fe94e1781d689ae6081b7a2158b326eeb12893a5196fb39563cbcfdc5a527f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2536a3322110ba002db26891d9c622f383831b27f445ce012d71c6b5e64419b4
[INFO] running `Command { std: "docker" "start" "-a" "2536a3322110ba002db26891d9c622f383831b27f445ce012d71c6b5e64419b4", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/bytes0.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |         Ok(try!(result))
[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/bytes0.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         try!(self.write_all(data));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/bytes0.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         try!(self.write_all(&[0; 1]));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         try!(self.write_u8(data.len() as u8));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |         try!(self.write_all(&data));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         try!(self.write_u16::<T>(data.len() as u16));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         try!(self.write_all(&data));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |         try!(self.write_u32::<T>(data.len() as u32));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         try!(self.write_all(&data));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         try!(self.write_u64::<T>(data.len() as u64));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         try!(self.write_all(&data));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         try!(self.read_exact(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:68:19
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let len = try!(self.read_u8());
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         try!(self.read_exact(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:80:19
[INFO] [stderr]    |
[INFO] [stderr] 80 |         let len = try!(self.read_u16::<T>());
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |         try!(self.read_exact(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/length_prefixed.rs:94:19
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let len = try!(self.read_u32::<T>());
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/length_prefixed.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         try!(self.read_exact(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/length_prefixed.rs:104:19
[INFO] [stderr]     |
[INFO] [stderr] 104 |         let len = try!(self.read_u64::<T>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rwutil` (lib) generated 19 warnings
[INFO] [stderr] warning: `rwutil` (lib test) generated 19 warnings (19 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rwutil-501202cec9412c67)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test length_prefixed::test::test_u16_prefixed_write_be ... ok
[INFO] [stdout] test bytes0::test::test_bytes0 ... ok
[INFO] [stdout] test length_prefixed::test::test_u16_prefixed_write_le ... ok
[INFO] [stdout] test length_prefixed::test::test_u32_prefixed_write_be ... ok
[INFO] [stdout] test length_prefixed::test::test_u32_prefixed_write_le ... ok
[INFO] [stdout] test length_prefixed::test::test_u64_prefixed_write_be ... ok
[INFO] [stdout] test length_prefixed::test::test_u8_prefixed_write ... ok
[INFO] [stdout] test length_prefixed::test::test_u64_prefixed_write_le ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rwutil
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/bytes0.rs - bytes0 (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2536a3322110ba002db26891d9c622f383831b27f445ce012d71c6b5e64419b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2536a3322110ba002db26891d9c622f383831b27f445ce012d71c6b5e64419b4", kill_on_drop: false }`
[INFO] [stdout] 2536a3322110ba002db26891d9c622f383831b27f445ce012d71c6b5e64419b4