[INFO] fetching crate expectation-shared 0.1.0...
[INFO] checking expectation-shared-0.1.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate expectation-shared 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate expectation-shared 0.1.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate expectation-shared 0.1.0
[INFO] finished tweaking crates.io crate expectation-shared 0.1.0
[INFO] tweaked toml for crates.io crate expectation-shared 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4628b40e62553d255f9899be1d7fce197b9ee39a8a01e2117418c75d5c76cb28
[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" "4628b40e62553d255f9899be1d7fce197b9ee39a8a01e2117418c75d5c76cb28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4628b40e62553d255f9899be1d7fce197b9ee39a8a01e2117418c75d5c76cb28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4628b40e62553d255f9899be1d7fce197b9ee39a8a01e2117418c75d5c76cb28", kill_on_drop: false }`
[INFO] [stdout] 4628b40e62553d255f9899be1d7fce197b9ee39a8a01e2117418c75d5c76cb28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a163534d2c090e65868f273121b928643dec11d64fa12a6dbcb9e6e168978fd
[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" "5a163534d2c090e65868f273121b928643dec11d64fa12a6dbcb9e6e168978fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking expectation-shared v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:24:32
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn duplicate(&self) -> Box<FileSystem>;
[INFO] [stdout]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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/filesystem.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn subsystem(&self, path: &Path) -> Box<FileSystem>;
[INFO] [stdout]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:27:52
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stdout]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:28:42
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:28:53
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[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/filesystem.rs:54:45
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stdout]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:66:32
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stdout]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:75:41
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:75:52
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:86:42
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:86:53
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[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/filesystem.rs:115:45
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stdout]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/filesystem.rs:121:32
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stdout]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/filesystem.rs:136:41
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/filesystem.rs:136:52
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/filesystem.rs:152:42
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/filesystem.rs:152:53
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[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/filesystem.rs:24:32
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn duplicate(&self) -> Box<FileSystem>;
[INFO] [stdout]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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/filesystem.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn subsystem(&self, path: &Path) -> Box<FileSystem>;
[INFO] [stdout]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:27:52
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stdout]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:28:42
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:28:53
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[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/filesystem.rs:54:45
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stdout]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:66:32
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stdout]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:75:41
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:75:52
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:86:42
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filesystem.rs:86:53
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[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/filesystem.rs:115:45
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stdout]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/filesystem.rs:121:32
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stdout]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/filesystem.rs:136:41
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/filesystem.rs:136:52
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/filesystem.rs:152:42
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/filesystem.rs:152:53
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stdout]     |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.64s
[INFO] running `Command { std: "docker" "inspect" "5a163534d2c090e65868f273121b928643dec11d64fa12a6dbcb9e6e168978fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a163534d2c090e65868f273121b928643dec11d64fa12a6dbcb9e6e168978fd", kill_on_drop: false }`
[INFO] [stdout] 5a163534d2c090e65868f273121b928643dec11d64fa12a6dbcb9e6e168978fd