[INFO] cloning repository https://github.com/mkolosick/timer.rs-temp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mkolosick/timer.rs-temp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkolosick%2Ftimer.rs-temp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkolosick%2Ftimer.rs-temp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5faea7d971245aac4e67504fc41236a94c9c69ef
[INFO] testing mkolosick/timer.rs-temp against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkolosick%2Ftimer.rs-temp" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mkolosick/timer.rs-temp on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mkolosick/timer.rs-temp
[INFO] finished tweaking git repo https://github.com/mkolosick/timer.rs-temp
[INFO] tweaked toml for git repo https://github.com/mkolosick/timer.rs-temp written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mkolosick/timer.rs-temp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2fb0a7502e763afc4440db83f5c4065feac15187489d688afccfb9e51e4de89b
[INFO] running `Command { std: "docker" "start" "-a" "2fb0a7502e763afc4440db83f5c4065feac15187489d688afccfb9e51e4de89b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fb0a7502e763afc4440db83f5c4065feac15187489d688afccfb9e51e4de89b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fb0a7502e763afc4440db83f5c4065feac15187489d688afccfb9e51e4de89b", kill_on_drop: false }`
[INFO] [stdout] 2fb0a7502e763afc4440db83f5c4065feac15187489d688afccfb9e51e4de89b
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 618b82f69f7b2601cd43aabdf61fdf853783141ccee3ee5a5f2103012c63b847
[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" "618b82f69f7b2601cd43aabdf61fdf853783141ccee3ee5a5f2103012c63b847", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.1.35
[INFO] [stderr]    Compiling libc v0.2.16
[INFO] [stderr]    Compiling time v0.1.34
[INFO] [stderr]    Compiling num-integer v0.1.32
[INFO] [stderr]    Compiling num-iter v0.1.32
[INFO] [stderr]    Compiling num v0.1.35
[INFO] [stderr]    Compiling chrono v0.2.25 (https://github.com/mkolosick/rust-chrono-temp.git#37eccf1a)
[INFO] [stderr]    Compiling timer v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:336:25
[INFO] [stdout]     |
[INFO] [stdout] 336 |     base: TimerBase<Box<FnMut() + Send>>
[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] 336 -     base: TimerBase<Box<FnMut() + Send>>
[INFO] [stdout] 336 +     base: TimerBase<Box<dyn FnMut() + Send>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:104:19
[INFO] [stdout]     |
[INFO] [stdout] 104 | impl Executor<Box<FnMut() + Send>> for CallbackExecutor {
[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] 104 - impl Executor<Box<FnMut() + Send>> for CallbackExecutor {
[INFO] [stdout] 104 + impl Executor<Box<dyn FnMut() + Send>> for CallbackExecutor {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:105:42
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn execute(&mut self, mut data : Box<FnMut() + Send>) {
[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] 105 -     fn execute(&mut self, mut data : Box<FnMut() + Send>) {
[INFO] [stdout] 105 +     fn execute(&mut self, mut data : Box<dyn FnMut() + Send>) {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:109:72
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[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] 109 -     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stdout] 109 +     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<dyn FnMut() + Send> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:109:48
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[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] 109 -     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stdout] 109 +     fn execute_clone(&mut self, mut data : Box<dyn FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.33s
[INFO] running `Command { std: "docker" "inspect" "618b82f69f7b2601cd43aabdf61fdf853783141ccee3ee5a5f2103012c63b847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "618b82f69f7b2601cd43aabdf61fdf853783141ccee3ee5a5f2103012c63b847", kill_on_drop: false }`
[INFO] [stdout] 618b82f69f7b2601cd43aabdf61fdf853783141ccee3ee5a5f2103012c63b847
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fcf2e1c2b9813d73703b4a199edd61a8a1c98fa9fe174db1044c0066644ab081
[INFO] running `Command { std: "docker" "start" "-a" "fcf2e1c2b9813d73703b4a199edd61a8a1c98fa9fe174db1044c0066644ab081", kill_on_drop: false }`
[INFO] [stderr]    Compiling timer v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:336:25
[INFO] [stdout]     |
[INFO] [stdout] 336 |     base: TimerBase<Box<FnMut() + Send>>
[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] 336 -     base: TimerBase<Box<FnMut() + Send>>
[INFO] [stdout] 336 +     base: TimerBase<Box<dyn FnMut() + Send>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:104:19
[INFO] [stdout]     |
[INFO] [stdout] 104 | impl Executor<Box<FnMut() + Send>> for CallbackExecutor {
[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] 104 - impl Executor<Box<FnMut() + Send>> for CallbackExecutor {
[INFO] [stdout] 104 + impl Executor<Box<dyn FnMut() + Send>> for CallbackExecutor {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:105:42
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn execute(&mut self, mut data : Box<FnMut() + Send>) {
[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] 105 -     fn execute(&mut self, mut data : Box<FnMut() + Send>) {
[INFO] [stdout] 105 +     fn execute(&mut self, mut data : Box<dyn FnMut() + Send>) {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:109:72
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[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] 109 -     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stdout] 109 +     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<dyn FnMut() + Send> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:109:48
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[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] 109 -     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stdout] 109 +     fn execute_clone(&mut self, mut data : Box<dyn FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:336:25
[INFO] [stdout]     |
[INFO] [stdout] 336 |     base: TimerBase<Box<FnMut() + Send>>
[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] 336 -     base: TimerBase<Box<FnMut() + Send>>
[INFO] [stdout] 336 +     base: TimerBase<Box<dyn FnMut() + Send>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:104:19
[INFO] [stdout]     |
[INFO] [stdout] 104 | impl Executor<Box<FnMut() + Send>> for CallbackExecutor {
[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] 104 - impl Executor<Box<FnMut() + Send>> for CallbackExecutor {
[INFO] [stdout] 104 + impl Executor<Box<dyn FnMut() + Send>> for CallbackExecutor {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:105:42
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn execute(&mut self, mut data : Box<FnMut() + Send>) {
[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] 105 -     fn execute(&mut self, mut data : Box<FnMut() + Send>) {
[INFO] [stdout] 105 +     fn execute(&mut self, mut data : Box<dyn FnMut() + Send>) {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:109:72
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[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] 109 -     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stdout] 109 +     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<dyn FnMut() + Send> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:109:48
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[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] 109 -     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stdout] 109 +     fn execute_clone(&mut self, mut data : Box<dyn FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.31s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/timer-db85c3fc0e2777bd)
[INFO] running `Command { std: "docker" "inspect" "fcf2e1c2b9813d73703b4a199edd61a8a1c98fa9fe174db1044c0066644ab081", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcf2e1c2b9813d73703b4a199edd61a8a1c98fa9fe174db1044c0066644ab081", kill_on_drop: false }`
[INFO] [stdout] fcf2e1c2b9813d73703b4a199edd61a8a1c98fa9fe174db1044c0066644ab081
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ec013c13f8d7f9f844fd3afb658fc71c01fb8626bc8ec9075ae4f53765937785
[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" "ec013c13f8d7f9f844fd3afb658fc71c01fb8626bc8ec9075ae4f53765937785", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:336:25
[INFO] [stderr]     |
[INFO] [stderr] 336 |     base: TimerBase<Box<FnMut() + Send>>
[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] 336 -     base: TimerBase<Box<FnMut() + Send>>
[INFO] [stderr] 336 +     base: TimerBase<Box<dyn FnMut() + Send>>
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:104:19
[INFO] [stderr]     |
[INFO] [stderr] 104 | impl Executor<Box<FnMut() + Send>> for CallbackExecutor {
[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] 104 - impl Executor<Box<FnMut() + Send>> for CallbackExecutor {
[INFO] [stderr] 104 + impl Executor<Box<dyn FnMut() + Send>> for CallbackExecutor {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:105:42
[INFO] [stderr]     |
[INFO] [stderr] 105 |     fn execute(&mut self, mut data : Box<FnMut() + Send>) {
[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] 105 -     fn execute(&mut self, mut data : Box<FnMut() + Send>) {
[INFO] [stderr] 105 +     fn execute(&mut self, mut data : Box<dyn FnMut() + Send>) {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:109:72
[INFO] [stderr]     |
[INFO] [stderr] 109 |     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[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] 109 -     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stderr] 109 +     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<dyn FnMut() + Send> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:109:48
[INFO] [stderr]     |
[INFO] [stderr] 109 |     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[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] 109 -     fn execute_clone(&mut self, mut data : Box<FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stderr] 109 +     fn execute_clone(&mut self, mut data : Box<dyn FnMut() + Send>) -> Box<FnMut() + Send> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `timer` (lib) generated 5 warnings
[INFO] [stderr] warning: `timer` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/timer-db85c3fc0e2777bd)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_no_clone ... ok
[INFO] [stdout] test tests::test_message_timer ... ok
[INFO] [stdout] test tests::test_guards ... ok
[INFO] [stdout] test tests::test_guard_ignore ... ok
[INFO] [stdout] test tests::test_schedule_with_delay ... ok
[INFO] [stderr]    Doc-tests timer
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - MessageTimer<T>::schedule_repeating (line 640) ... ok
[INFO] [stdout] test src/lib.rs - Timer::schedule_repeating (line 457) ... ok
[INFO] [stdout] test src/lib.rs - MessageTimer<T>::schedule_with_delay (line 582) ... ok
[INFO] [stdout] test src/lib.rs - Timer::schedule_with_delay (line 380) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.63s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ec013c13f8d7f9f844fd3afb658fc71c01fb8626bc8ec9075ae4f53765937785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec013c13f8d7f9f844fd3afb658fc71c01fb8626bc8ec9075ae4f53765937785", kill_on_drop: false }`
[INFO] [stdout] ec013c13f8d7f9f844fd3afb658fc71c01fb8626bc8ec9075ae4f53765937785