[INFO] updating cached repository ElliotLockerman/rust_args
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ElliotLockerman/rust_args
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ElliotLockerman/rust_args" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/ElliotLockerman/rust_args"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/ElliotLockerman/rust_args'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ElliotLockerman/rust_args" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ElliotLockerman/rust_args"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ElliotLockerman/rust_args'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a4cd46a147620a0db895309b6a7ebfec5c51e5fa
[INFO] sha for GitHub repo ElliotLockerman/rust_args: a4cd46a147620a0db895309b6a7ebfec5c51e5fa
[INFO] validating manifest of ElliotLockerman/rust_args on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ElliotLockerman/rust_args on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ElliotLockerman/rust_args
[INFO] finished frobbing ElliotLockerman/rust_args
[INFO] frobbed toml for ElliotLockerman/rust_args written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/ElliotLockerman/rust_args/Cargo.toml
[INFO] started frobbing ElliotLockerman/rust_args
[INFO] finished frobbing ElliotLockerman/rust_args
[INFO] frobbed toml for ElliotLockerman/rust_args written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ElliotLockerman/rust_args/Cargo.toml
[INFO] crate ElliotLockerman/rust_args already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ElliotLockerman/rust_args against try#8ec8125bea94852768b56958f05da47666c21ab0 for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-7/try#8ec8125bea94852768b56958f05da47666c21ab0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ElliotLockerman/rust_args:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2247eb585436ed82bcb027c53515e7076c7d4132eab93bf554df4a1e1f292a1a
[INFO] running `"docker" "start" "-a" "2247eb585436ed82bcb027c53515e7076c7d4132eab93bf554df4a1e1f292a1a"`
[INFO] [stderr]     Checking args v0.1.0 (/opt/crater/workdir)
[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: 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]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "2247eb585436ed82bcb027c53515e7076c7d4132eab93bf554df4a1e1f292a1a"`
[INFO] running `"docker" "rm" "-f" "2247eb585436ed82bcb027c53515e7076c7d4132eab93bf554df4a1e1f292a1a"`
[INFO] [stdout] 2247eb585436ed82bcb027c53515e7076c7d4132eab93bf554df4a1e1f292a1a