[INFO] updating cached repository https://github.com/wolfgang/logg
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cb546eae0a5bc28741c6c31391c7af6a9e21a1fe
[INFO] checking wolfgang/logg against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwolfgang%2Flogg" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wolfgang/logg on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/wolfgang/logg
[INFO] finished tweaking git repo https://github.com/wolfgang/logg
[INFO] tweaked toml for git repo https://github.com/wolfgang/logg written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/wolfgang/logg already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 55ce2372ffee644ebc9f1eb5fa2bef6540afcc1cc5d538a01eda216d8f45eaf0
[INFO] running `"docker" "start" "-a" "55ce2372ffee644ebc9f1eb5fa2bef6540afcc1cc5d538a01eda216d8f45eaf0"`
[INFO] [stderr]     Checking colored v1.7.0
[INFO] [stderr]     Checking pretty_assertions v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.36
[INFO] [stderr]     Checking logg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cmd/mod.rs:10:21
[INFO] [stderr]    |
[INFO] [stderr] 10 | type CmdFn=&'static Fn(&[String]) -> EmptyBoxedResult;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[String]) -> EmptyBoxedResult`
[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/core/json_db.rs:7:27
[INFO] [stderr]   |
[INFO] [stderr] 7 |     get_timestamp_fn: &'a Fn() -> i64
[INFO] [stderr]   |                           ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> i64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core/json_db.rs:16:60
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn _new(json: serde_json::Value, get_timestamp_fn: &'a Fn() -> i64) -> JsonDB<'a> {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> i64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/core/error.rs:4:41
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type BoxedResult<T> = Result<T, Box<Error>>;
[INFO] [stderr]   |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cmd/mod.rs:10:21
[INFO] [stderr]    |
[INFO] [stderr] 10 | type CmdFn=&'static Fn(&[String]) -> EmptyBoxedResult;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[String]) -> EmptyBoxedResult`
[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/core/json_db.rs:7:27
[INFO] [stderr]   |
[INFO] [stderr] 7 |     get_timestamp_fn: &'a Fn() -> i64
[INFO] [stderr]   |                           ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> i64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core/json_db.rs:16:60
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn _new(json: serde_json::Value, get_timestamp_fn: &'a Fn() -> i64) -> JsonDB<'a> {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> i64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/core/error.rs:4:41
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type BoxedResult<T> = Result<T, Box<Error>>;
[INFO] [stderr]   |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `log_file`
[INFO] [stderr]   --> src/main.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let log_file = logg::core::LOG_FILE;
[INFO] [stderr]    |         ^^^^^^^^ help: consider prefixing with an underscore: `_log_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/rust_functions_test.rs:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn fun_fun(value: i32, f: &Fn(i32) -> i32) -> i32 {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i32) -> i32`
[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]   --> tests/rust_error_handling_test.rs:16:66
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn return_error_as_string(return_error: bool) -> Result<i32, Box<Error>> {
[INFO] [stderr]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `log_file`
[INFO] [stderr]   --> src/main.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let log_file = logg::core::LOG_FILE;
[INFO] [stderr]    |         ^^^^^^^^ help: consider prefixing with an underscore: `_log_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.01s
[INFO] running `"docker" "inspect" "55ce2372ffee644ebc9f1eb5fa2bef6540afcc1cc5d538a01eda216d8f45eaf0"`
[INFO] running `"docker" "rm" "-f" "55ce2372ffee644ebc9f1eb5fa2bef6540afcc1cc5d538a01eda216d8f45eaf0"`
[INFO] [stdout] 55ce2372ffee644ebc9f1eb5fa2bef6540afcc1cc5d538a01eda216d8f45eaf0