[INFO] cloning repository https://github.com/Michael0x2a/impo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Michael0x2a/impo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael0x2a%2Fimpo"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael0x2a%2Fimpo'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8a49d12d09be2b0e4f97419d7165a8a79dd845cd
[INFO] checking Michael0x2a/impo against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael0x2a%2Fimpo" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Michael0x2a/impo on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Michael0x2a/impo
[INFO] finished tweaking git repo https://github.com/Michael0x2a/impo
[INFO] tweaked toml for git repo https://github.com/Michael0x2a/impo written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/Michael0x2a/impo already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f9cb5eb0a9ec266e58f237f187bc8bbf26df3a8b7ef83041eb10f0d017b65ecd
[INFO] running `"docker" "start" "-a" "f9cb5eb0a9ec266e58f237f187bc8bbf26df3a8b7ef83041eb10f0d017b65ecd"`
[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/rustwide/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 9.34s
[INFO] running `"docker" "inspect" "f9cb5eb0a9ec266e58f237f187bc8bbf26df3a8b7ef83041eb10f0d017b65ecd"`
[INFO] running `"docker" "rm" "-f" "f9cb5eb0a9ec266e58f237f187bc8bbf26df3a8b7ef83041eb10f0d017b65ecd"`
[INFO] [stdout] f9cb5eb0a9ec266e58f237f187bc8bbf26df3a8b7ef83041eb10f0d017b65ecd