[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-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/ElliotLockerman/rust_args"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/ElliotLockerman/rust_args'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ElliotLockerman/rust_args" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/ElliotLockerman/rust_args"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ElliotLockerman/rust_args on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-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-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/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-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ElliotLockerman/rust_args against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ec719eba389da0e4cf0e12e838405b2f5e630b2e6413d07b0e9745961e1ec45e
[INFO] running `"docker" "start" "-a" "ec719eba389da0e4cf0e12e838405b2f5e630b2e6413d07b0e9745961e1ec45e"`
[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 0.97s
[INFO] running `"docker" "inspect" "ec719eba389da0e4cf0e12e838405b2f5e630b2e6413d07b0e9745961e1ec45e"`
[INFO] running `"docker" "rm" "-f" "ec719eba389da0e4cf0e12e838405b2f5e630b2e6413d07b0e9745961e1ec45e"`
[INFO] [stdout] ec719eba389da0e4cf0e12e838405b2f5e630b2e6413d07b0e9745961e1ec45e