[INFO] crate expectation-shared 0.1.0 is already in cache
[INFO] testing expectation-shared-0.1.0 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate expectation-shared 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate expectation-shared 0.1.0 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 516b47fddd019c60dee51c613735f6e756d4a2d63a46391d0eff57588ad34024
[INFO] running `"docker" "start" "-a" "516b47fddd019c60dee51c613735f6e756d4a2d63a46391d0eff57588ad34024"`
[INFO] [stderr]    Compiling expectation-shared v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:24:32
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn duplicate(&self) -> Box<FileSystem>;
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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/filesystem.rs:25:45
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn subsystem(&self, path: &Path) -> Box<FileSystem>;
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:27:52
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:28:42
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:28:53
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:54:45
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:66:32
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:75:41
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:75:52
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:86:42
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:86:53
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:115:45
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:121:32
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stderr]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:136:41
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:136:52
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:152:42
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:152:53
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `"docker" "inspect" "516b47fddd019c60dee51c613735f6e756d4a2d63a46391d0eff57588ad34024"`
[INFO] running `"docker" "rm" "-f" "516b47fddd019c60dee51c613735f6e756d4a2d63a46391d0eff57588ad34024"`
[INFO] [stdout] 516b47fddd019c60dee51c613735f6e756d4a2d63a46391d0eff57588ad34024
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 45fe2e14204577ddbcde77635bde9fcabdd5fb46744266e9ddfb1f113621f2bf
[INFO] running `"docker" "start" "-a" "45fe2e14204577ddbcde77635bde9fcabdd5fb46744266e9ddfb1f113621f2bf"`
[INFO] [stderr]    Compiling expectation-shared v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:24:32
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn duplicate(&self) -> Box<FileSystem>;
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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/filesystem.rs:25:45
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn subsystem(&self, path: &Path) -> Box<FileSystem>;
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:27:52
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:28:42
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:28:53
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:54:45
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:66:32
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:75:41
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:75:52
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:86:42
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:86:53
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:115:45
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:121:32
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stderr]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:136:41
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:136:52
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:152:42
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:152:53
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:24:32
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn duplicate(&self) -> Box<FileSystem>;
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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/filesystem.rs:25:45
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn subsystem(&self, path: &Path) -> Box<FileSystem>;
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:27:52
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:28:42
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:28:53
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:54:45
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:66:32
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:75:41
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:75:52
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:86:42
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:86:53
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:115:45
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:121:32
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stderr]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:136:41
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:136:52
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:152:42
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:152:53
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "45fe2e14204577ddbcde77635bde9fcabdd5fb46744266e9ddfb1f113621f2bf"`
[INFO] running `"docker" "rm" "-f" "45fe2e14204577ddbcde77635bde9fcabdd5fb46744266e9ddfb1f113621f2bf"`
[INFO] [stdout] 45fe2e14204577ddbcde77635bde9fcabdd5fb46744266e9ddfb1f113621f2bf
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b07a3b03e9a67107ed9c2468234e15362c3a7617d45af95575c78f2b5d6a2b66
[INFO] running `"docker" "start" "-a" "b07a3b03e9a67107ed9c2468234e15362c3a7617d45af95575c78f2b5d6a2b66"`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:24:32
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn duplicate(&self) -> Box<FileSystem>;
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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/filesystem.rs:25:45
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn subsystem(&self, path: &Path) -> Box<FileSystem>;
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:27:52
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:28:42
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:28:53
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:54:45
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:66:32
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:75:41
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:75:52
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:86:42
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:86:53
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:115:45
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:121:32
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stderr]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:136:41
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:136:52
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:152:42
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:152:53
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:24:32
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn duplicate(&self) -> Box<FileSystem>;
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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/filesystem.rs:25:45
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn subsystem(&self, path: &Path) -> Box<FileSystem>;
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:27:52
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:28:42
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:28:53
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()>;
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:54:45
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:66:32
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:75:41
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:75:52
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:86:42
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filesystem.rs:86:53
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:115:45
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn subsystem(&self, path: &Path) -> Box<FileSystem> {
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:121:32
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn duplicate(&self) -> Box<FileSystem> {
[INFO] [stderr]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:136:41
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut ReadSeek) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:136:52
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn read(&self, path: &Path, f: &mut FnMut(&mut ReadSeek) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn ReadSeek`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:152:42
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Write) -> IoResult<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/filesystem.rs:152:53
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn write(&self, path: &Path, f: &mut FnMut(&mut Write) -> IoResult<()>) -> IoResult<()> {
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/expectation_shared-14a687b74eeecaf0
[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] [stderr]    Doc-tests expectation-shared
[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 `"docker" "inspect" "b07a3b03e9a67107ed9c2468234e15362c3a7617d45af95575c78f2b5d6a2b66"`
[INFO] running `"docker" "rm" "-f" "b07a3b03e9a67107ed9c2468234e15362c3a7617d45af95575c78f2b5d6a2b66"`
[INFO] [stdout] b07a3b03e9a67107ed9c2468234e15362c3a7617d45af95575c78f2b5d6a2b66