[INFO] updating cached repository Michael0x2a/impo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Michael0x2a/impo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Michael0x2a/impo" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Michael0x2a/impo"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Michael0x2a/impo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Michael0x2a/impo" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Michael0x2a/impo"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Michael0x2a/impo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8a49d12d09be2b0e4f97419d7165a8a79dd845cd
[INFO] sha for GitHub repo Michael0x2a/impo: 8a49d12d09be2b0e4f97419d7165a8a79dd845cd
[INFO] validating manifest of Michael0x2a/impo on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Michael0x2a/impo on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Michael0x2a/impo
[INFO] finished frobbing Michael0x2a/impo
[INFO] frobbed toml for Michael0x2a/impo written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Michael0x2a/impo/Cargo.toml
[INFO] started frobbing Michael0x2a/impo
[INFO] finished frobbing Michael0x2a/impo
[INFO] frobbed toml for Michael0x2a/impo written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Michael0x2a/impo/Cargo.toml
[INFO] crate Michael0x2a/impo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Michael0x2a/impo against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-3/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Michael0x2a/impo:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 23a85db3bef681b4da36324912b858d4ea3e709d1c08b95fc4a9c61c17ec8523
[INFO] running `"docker" "start" "-a" "23a85db3bef681b4da36324912b858d4ea3e709d1c08b95fc4a9c61c17ec8523"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.21
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking impo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck/infer.rs:131:45
[INFO] [stderr]     |
[INFO] [stderr] 131 | fn is_one_of(typ: ImpoType, matchers: &Vec<&Fn(ImpoType) -> bool>) -> bool
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(ImpoType) -> bool`
[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/interpreter/interpreter.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 |              int_op: &Fn(i64, i64) -> i64,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, i64) -> i64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interpreter/interpreter.rs:22:25
[INFO] [stderr]    |
[INFO] [stderr] 22 |              float_op: &Fn(f64, f64) -> f64) -> Result<Value, ImpoError> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/typed.rs:29:15
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pool: &'a ReadOnlyStringPool,
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadOnlyStringPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/typed.rs:33:26
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new(pool: &'a ReadOnlyStringPool) -> TypedNodeToStrVisitor<'a> {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadOnlyStringPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck/infer.rs:131:45
[INFO] [stderr]     |
[INFO] [stderr] 131 | fn is_one_of(typ: ImpoType, matchers: &Vec<&Fn(ImpoType) -> bool>) -> bool
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(ImpoType) -> bool`
[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/interpreter/interpreter.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 |              int_op: &Fn(i64, i64) -> i64,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, i64) -> i64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interpreter/interpreter.rs:22:25
[INFO] [stderr]    |
[INFO] [stderr] 22 |              float_op: &Fn(f64, f64) -> f64) -> Result<Value, ImpoError> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/typed.rs:29:15
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pool: &'a ReadOnlyStringPool,
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadOnlyStringPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/typed.rs:33:26
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new(pool: &'a ReadOnlyStringPool) -> TypedNodeToStrVisitor<'a> {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadOnlyStringPool`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.76s
[INFO] running `"docker" "inspect" "23a85db3bef681b4da36324912b858d4ea3e709d1c08b95fc4a9c61c17ec8523"`
[INFO] running `"docker" "rm" "-f" "23a85db3bef681b4da36324912b858d4ea3e709d1c08b95fc4a9c61c17ec8523"`
[INFO] [stdout] 23a85db3bef681b4da36324912b858d4ea3e709d1c08b95fc4a9c61c17ec8523