[INFO] cloning repository https://github.com/ElliotLockerman/rust_args
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ElliotLockerman/rust_args" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElliotLockerman%2Frust_args", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElliotLockerman%2Frust_args'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4cd46a147620a0db895309b6a7ebfec5c51e5fa
[INFO] testing ElliotLockerman/rust_args against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElliotLockerman%2Frust_args" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ElliotLockerman/rust_args on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ElliotLockerman/rust_args
[INFO] finished tweaking git repo https://github.com/ElliotLockerman/rust_args
[INFO] tweaked toml for git repo https://github.com/ElliotLockerman/rust_args written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ElliotLockerman/rust_args already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73301387c6bf69876c73ae20e06607e661d07083e360b07b8e14b5b60f4a0eb3
[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" "73301387c6bf69876c73ae20e06607e661d07083e360b07b8e14b5b60f4a0eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73301387c6bf69876c73ae20e06607e661d07083e360b07b8e14b5b60f4a0eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73301387c6bf69876c73ae20e06607e661d07083e360b07b8e14b5b60f4a0eb3", kill_on_drop: false }`
[INFO] [stdout] 73301387c6bf69876c73ae20e06607e661d07083e360b07b8e14b5b60f4a0eb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92ab739604a1da06256a7da439475383a68c548bbb5077e453fbea2147d72e39
[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" "92ab739604a1da06256a7da439475383a68c548bbb5077e453fbea2147d72e39", kill_on_drop: false }`
[INFO] [stderr]    Compiling args v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:133:27
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pos_args: Vec<&'a mut PosArgBase>,
[INFO] [stdout]     |                           ^^^^^^^^^^ help: use `dyn`: `dyn PosArgBase`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:136:43
[INFO] [stdout]     |
[INFO] [stdout] 136 |     kv_keys: BTreeMap<String, &'a RefCell<KVArgBase>>,
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn KVArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:138:45
[INFO] [stdout]     |
[INFO] [stdout] 138 |     flag_keys: BTreeMap<String, &'a RefCell<FlagArgBase>>,
[INFO] [stdout]     |                                             ^^^^^^^^^^^ help: use `dyn`: `dyn FlagArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:152:52
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn add_pos_arg(&mut self, pos_arg: &'a mut PosArgBase) {
[INFO] [stdout]     |                                                    ^^^^^^^^^^ help: use `dyn`: `dyn PosArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:158:54
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn add_kv_arg(&mut self, kv_arg: &'a RefCell<KVArgBase>) {
[INFO] [stdout]     |                                                      ^^^^^^^^^ help: use `dyn`: `dyn KVArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:175:58
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn add_flag_arg(&mut self, flag_arg: &'a RefCell<FlagArgBase>) {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn FlagArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "92ab739604a1da06256a7da439475383a68c548bbb5077e453fbea2147d72e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ab739604a1da06256a7da439475383a68c548bbb5077e453fbea2147d72e39", kill_on_drop: false }`
[INFO] [stdout] 92ab739604a1da06256a7da439475383a68c548bbb5077e453fbea2147d72e39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e40d38e6592bdbba8c648d86cd5bfd3d04cddd0bf57b28af128cf6b18a04aa5
[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" "3e40d38e6592bdbba8c648d86cd5bfd3d04cddd0bf57b28af128cf6b18a04aa5", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:133:27
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pos_args: Vec<&'a mut PosArgBase>,
[INFO] [stdout]     |                           ^^^^^^^^^^ help: use `dyn`: `dyn PosArgBase`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling args v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:136:43
[INFO] [stdout]     |
[INFO] [stdout] 136 |     kv_keys: BTreeMap<String, &'a RefCell<KVArgBase>>,
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn KVArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:138:45
[INFO] [stdout]     |
[INFO] [stdout] 138 |     flag_keys: BTreeMap<String, &'a RefCell<FlagArgBase>>,
[INFO] [stdout]     |                                             ^^^^^^^^^^^ help: use `dyn`: `dyn FlagArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:152:52
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn add_pos_arg(&mut self, pos_arg: &'a mut PosArgBase) {
[INFO] [stdout]     |                                                    ^^^^^^^^^^ help: use `dyn`: `dyn PosArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:158:54
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn add_kv_arg(&mut self, kv_arg: &'a RefCell<KVArgBase>) {
[INFO] [stdout]     |                                                      ^^^^^^^^^ help: use `dyn`: `dyn KVArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:175:58
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn add_flag_arg(&mut self, flag_arg: &'a RefCell<FlagArgBase>) {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn FlagArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:133:27
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pos_args: Vec<&'a mut PosArgBase>,
[INFO] [stdout]     |                           ^^^^^^^^^^ help: use `dyn`: `dyn PosArgBase`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:136:43
[INFO] [stdout]     |
[INFO] [stdout] 136 |     kv_keys: BTreeMap<String, &'a RefCell<KVArgBase>>,
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn KVArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:138:45
[INFO] [stdout]     |
[INFO] [stdout] 138 |     flag_keys: BTreeMap<String, &'a RefCell<FlagArgBase>>,
[INFO] [stdout]     |                                             ^^^^^^^^^^^ help: use `dyn`: `dyn FlagArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:152:52
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn add_pos_arg(&mut self, pos_arg: &'a mut PosArgBase) {
[INFO] [stdout]     |                                                    ^^^^^^^^^^ help: use `dyn`: `dyn PosArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:158:54
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn add_kv_arg(&mut self, kv_arg: &'a RefCell<KVArgBase>) {
[INFO] [stdout]     |                                                      ^^^^^^^^^ help: use `dyn`: `dyn KVArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:175:58
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn add_flag_arg(&mut self, flag_arg: &'a RefCell<FlagArgBase>) {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn FlagArgBase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "3e40d38e6592bdbba8c648d86cd5bfd3d04cddd0bf57b28af128cf6b18a04aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e40d38e6592bdbba8c648d86cd5bfd3d04cddd0bf57b28af128cf6b18a04aa5", kill_on_drop: false }`
[INFO] [stdout] 3e40d38e6592bdbba8c648d86cd5bfd3d04cddd0bf57b28af128cf6b18a04aa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 652e0f83afcfcdebbec55a1dc14510ccaaedd87ee0eb9055e79b8036316415fc
[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" "652e0f83afcfcdebbec55a1dc14510ccaaedd87ee0eb9055e79b8036316415fc", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:133:27
[INFO] [stderr]     |
[INFO] [stderr] 133 |     pos_args: Vec<&'a mut PosArgBase>,
[INFO] [stderr]     |                           ^^^^^^^^^^ help: use `dyn`: `dyn PosArgBase`
[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/lib.rs:136:43
[INFO] [stderr]     |
[INFO] [stderr] 136 |     kv_keys: BTreeMap<String, &'a RefCell<KVArgBase>>,
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn KVArgBase`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:138:45
[INFO] [stderr]     |
[INFO] [stderr] 138 |     flag_keys: BTreeMap<String, &'a RefCell<FlagArgBase>>,
[INFO] [stderr]     |                                             ^^^^^^^^^^^ help: use `dyn`: `dyn FlagArgBase`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:152:52
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn add_pos_arg(&mut self, pos_arg: &'a mut PosArgBase) {
[INFO] [stderr]     |                                                    ^^^^^^^^^^ help: use `dyn`: `dyn PosArgBase`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:158:54
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn add_kv_arg(&mut self, kv_arg: &'a RefCell<KVArgBase>) {
[INFO] [stderr]     |                                                      ^^^^^^^^^ help: use `dyn`: `dyn KVArgBase`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:175:58
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn add_flag_arg(&mut self, flag_arg: &'a RefCell<FlagArgBase>) {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn FlagArgBase`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:133:27
[INFO] [stderr]     |
[INFO] [stderr] 133 |     pos_args: Vec<&'a mut PosArgBase>,
[INFO] [stderr]     |                           ^^^^^^^^^^ help: use `dyn`: `dyn PosArgBase`
[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/lib.rs:136:43
[INFO] [stderr]     |
[INFO] [stderr] 136 |     kv_keys: BTreeMap<String, &'a RefCell<KVArgBase>>,
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn KVArgBase`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:138:45
[INFO] [stderr]     |
[INFO] [stderr] 138 |     flag_keys: BTreeMap<String, &'a RefCell<FlagArgBase>>,
[INFO] [stderr]     |                                             ^^^^^^^^^^^ help: use `dyn`: `dyn FlagArgBase`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:152:52
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn add_pos_arg(&mut self, pos_arg: &'a mut PosArgBase) {
[INFO] [stderr]     |                                                    ^^^^^^^^^^ help: use `dyn`: `dyn PosArgBase`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:158:54
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn add_kv_arg(&mut self, kv_arg: &'a RefCell<KVArgBase>) {
[INFO] [stderr]     |                                                      ^^^^^^^^^ help: use `dyn`: `dyn KVArgBase`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:175:58
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn add_flag_arg(&mut self, flag_arg: &'a RefCell<FlagArgBase>) {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn FlagArgBase`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/args-4ba1388a2b1bf025
[INFO] [stderr]    Doc-tests args
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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] running `Command { std: "docker" "inspect" "652e0f83afcfcdebbec55a1dc14510ccaaedd87ee0eb9055e79b8036316415fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "652e0f83afcfcdebbec55a1dc14510ccaaedd87ee0eb9055e79b8036316415fc", kill_on_drop: false }`
[INFO] [stdout] 652e0f83afcfcdebbec55a1dc14510ccaaedd87ee0eb9055e79b8036316415fc