[INFO] fetching crate yarf 0.0.2...
[INFO] testing yarf-0.0.2 against 1.59.0 for beta-1.60-1
[INFO] extracting crate yarf 0.0.2 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate yarf 0.0.2 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yarf 0.0.2
[INFO] finished tweaking crates.io crate yarf 0.0.2
[INFO] tweaked toml for crates.io crate yarf 0.0.2 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-104/source/examples/hello.rs
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72af4e0e7a460d9e79d5fe6295f096903942ad69916334591ea229f468beb395
[INFO] running `Command { std: "docker" "start" "-a" "72af4e0e7a460d9e79d5fe6295f096903942ad69916334591ea229f468beb395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72af4e0e7a460d9e79d5fe6295f096903942ad69916334591ea229f468beb395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72af4e0e7a460d9e79d5fe6295f096903942ad69916334591ea229f468beb395", kill_on_drop: false }`
[INFO] [stdout] 72af4e0e7a460d9e79d5fe6295f096903942ad69916334591ea229f468beb395
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 323c79da02ea8a9943b6893e247a17aadf3f345f7d7fab15be8f126e95118a74
[INFO] running `Command { std: "docker" "start" "-a" "323c79da02ea8a9943b6893e247a17aadf3f345f7d7fab15be8f126e95118a74", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/hello.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling yarf-sys v0.0.2
[INFO] [stderr]    Compiling yarf v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:298:26
[INFO] [stdout]     |
[INFO] [stdout] 298 | pub fn yarf_main(fs: Box<FileSystem>) -> i64 {
[INFO] [stdout]     |                          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 298 - pub fn yarf_main(fs: Box<FileSystem>) -> i64 {
[INFO] [stdout] 298 + pub fn yarf_main(fs: Box<dyn FileSystem>) -> i64 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:820:35
[INFO] [stdout]     |
[INFO] [stdout] 820 | fn get_filesystem() -> Option<Box<FileSystem>> {
[INFO] [stdout]     |                                   ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 820 - fn get_filesystem() -> Option<Box<FileSystem>> {
[INFO] [stdout] 820 + fn get_filesystem() -> Option<Box<dyn FileSystem>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:370:50
[INFO] [stdout]     |
[INFO] [stdout] 370 |     let fsptr = Box::into_raw(fstmp) as *mut Box<FileSystem> as *mut c_void;
[INFO] [stdout]     |                                                  ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 370 -     let fsptr = Box::into_raw(fstmp) as *mut Box<FileSystem> as *mut c_void;
[INFO] [stdout] 370 +     let fsptr = Box::into_raw(fstmp) as *mut Box<dyn FileSystem> as *mut c_void;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:826:58
[INFO] [stdout]     |
[INFO] [stdout] 826 |     let fsbox = unsafe { (*ctx).private_data as *mut Box<FileSystem> };
[INFO] [stdout]     |                                                          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 826 -     let fsbox = unsafe { (*ctx).private_data as *mut Box<FileSystem> };
[INFO] [stdout] 826 +     let fsbox = unsafe { (*ctx).private_data as *mut Box<dyn FileSystem> };
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.39s
[INFO] running `Command { std: "docker" "inspect" "323c79da02ea8a9943b6893e247a17aadf3f345f7d7fab15be8f126e95118a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "323c79da02ea8a9943b6893e247a17aadf3f345f7d7fab15be8f126e95118a74", kill_on_drop: false }`
[INFO] [stdout] 323c79da02ea8a9943b6893e247a17aadf3f345f7d7fab15be8f126e95118a74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6596680af5c2ee2655c032f5480716ab991f4c810fb5b84aac330126101d7ef2
[INFO] running `Command { std: "docker" "start" "-a" "6596680af5c2ee2655c032f5480716ab991f4c810fb5b84aac330126101d7ef2", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/hello.rs
[INFO] [stderr]    Compiling yarf v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:298:26
[INFO] [stdout]     |
[INFO] [stdout] 298 | pub fn yarf_main(fs: Box<FileSystem>) -> i64 {
[INFO] [stdout]     |                          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 298 - pub fn yarf_main(fs: Box<FileSystem>) -> i64 {
[INFO] [stdout] 298 + pub fn yarf_main(fs: Box<dyn FileSystem>) -> i64 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:820:35
[INFO] [stdout]     |
[INFO] [stdout] 820 | fn get_filesystem() -> Option<Box<FileSystem>> {
[INFO] [stdout]     |                                   ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 820 - fn get_filesystem() -> Option<Box<FileSystem>> {
[INFO] [stdout] 820 + fn get_filesystem() -> Option<Box<dyn FileSystem>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:370:50
[INFO] [stdout]     |
[INFO] [stdout] 370 |     let fsptr = Box::into_raw(fstmp) as *mut Box<FileSystem> as *mut c_void;
[INFO] [stdout]     |                                                  ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 370 -     let fsptr = Box::into_raw(fstmp) as *mut Box<FileSystem> as *mut c_void;
[INFO] [stdout] 370 +     let fsptr = Box::into_raw(fstmp) as *mut Box<dyn FileSystem> as *mut c_void;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:826:58
[INFO] [stdout]     |
[INFO] [stdout] 826 |     let fsbox = unsafe { (*ctx).private_data as *mut Box<FileSystem> };
[INFO] [stdout]     |                                                          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 826 -     let fsbox = unsafe { (*ctx).private_data as *mut Box<FileSystem> };
[INFO] [stdout] 826 +     let fsbox = unsafe { (*ctx).private_data as *mut Box<dyn FileSystem> };
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:298:26
[INFO] [stdout]     |
[INFO] [stdout] 298 | pub fn yarf_main(fs: Box<FileSystem>) -> i64 {
[INFO] [stdout]     |                          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 298 - pub fn yarf_main(fs: Box<FileSystem>) -> i64 {
[INFO] [stdout] 298 + pub fn yarf_main(fs: Box<dyn FileSystem>) -> i64 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:820:35
[INFO] [stdout]     |
[INFO] [stdout] 820 | fn get_filesystem() -> Option<Box<FileSystem>> {
[INFO] [stdout]     |                                   ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 820 - fn get_filesystem() -> Option<Box<FileSystem>> {
[INFO] [stdout] 820 + fn get_filesystem() -> Option<Box<dyn FileSystem>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:370:50
[INFO] [stdout]     |
[INFO] [stdout] 370 |     let fsptr = Box::into_raw(fstmp) as *mut Box<FileSystem> as *mut c_void;
[INFO] [stdout]     |                                                  ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 370 -     let fsptr = Box::into_raw(fstmp) as *mut Box<FileSystem> as *mut c_void;
[INFO] [stdout] 370 +     let fsptr = Box::into_raw(fstmp) as *mut Box<dyn FileSystem> as *mut c_void;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:826:58
[INFO] [stdout]     |
[INFO] [stdout] 826 |     let fsbox = unsafe { (*ctx).private_data as *mut Box<FileSystem> };
[INFO] [stdout]     |                                                          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 826 -     let fsbox = unsafe { (*ctx).private_data as *mut Box<FileSystem> };
[INFO] [stdout] 826 +     let fsbox = unsafe { (*ctx).private_data as *mut Box<dyn FileSystem> };
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "6596680af5c2ee2655c032f5480716ab991f4c810fb5b84aac330126101d7ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6596680af5c2ee2655c032f5480716ab991f4c810fb5b84aac330126101d7ef2", kill_on_drop: false }`
[INFO] [stdout] 6596680af5c2ee2655c032f5480716ab991f4c810fb5b84aac330126101d7ef2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68341ee66171895979c23132b2b933db183eadc69bc52a718d0cdda377f93b4c
[INFO] running `Command { std: "docker" "start" "-a" "68341ee66171895979c23132b2b933db183eadc69bc52a718d0cdda377f93b4c", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/hello.rs
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:298:26
[INFO] [stderr]     |
[INFO] [stderr] 298 | pub fn yarf_main(fs: Box<FileSystem>) -> i64 {
[INFO] [stderr]     |                          ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 298 - pub fn yarf_main(fs: Box<FileSystem>) -> i64 {
[INFO] [stderr] 298 + pub fn yarf_main(fs: Box<dyn FileSystem>) -> i64 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:820:35
[INFO] [stderr]     |
[INFO] [stderr] 820 | fn get_filesystem() -> Option<Box<FileSystem>> {
[INFO] [stderr]     |                                   ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 820 - fn get_filesystem() -> Option<Box<FileSystem>> {
[INFO] [stderr] 820 + fn get_filesystem() -> Option<Box<dyn FileSystem>> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:370:50
[INFO] [stderr]     |
[INFO] [stderr] 370 |     let fsptr = Box::into_raw(fstmp) as *mut Box<FileSystem> as *mut c_void;
[INFO] [stderr]     |                                                  ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 370 -     let fsptr = Box::into_raw(fstmp) as *mut Box<FileSystem> as *mut c_void;
[INFO] [stderr] 370 +     let fsptr = Box::into_raw(fstmp) as *mut Box<dyn FileSystem> as *mut c_void;
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:826:58
[INFO] [stderr]     |
[INFO] [stderr] 826 |     let fsbox = unsafe { (*ctx).private_data as *mut Box<FileSystem> };
[INFO] [stderr]     |                                                          ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 826 -     let fsbox = unsafe { (*ctx).private_data as *mut Box<FileSystem> };
[INFO] [stderr] 826 +     let fsbox = unsafe { (*ctx).private_data as *mut Box<dyn FileSystem> };
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `yarf` (lib) generated 4 warnings
[INFO] [stderr] warning: `yarf` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/yarf-dbbd72945a57b9c2)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello-0d207837f12c6f5e)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests yarf
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "68341ee66171895979c23132b2b933db183eadc69bc52a718d0cdda377f93b4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68341ee66171895979c23132b2b933db183eadc69bc52a718d0cdda377f93b4c", kill_on_drop: false }`
[INFO] [stdout] 68341ee66171895979c23132b2b933db183eadc69bc52a718d0cdda377f93b4c