[INFO] fetching crate extfsm 0.11.0...
[INFO] checking extfsm-0.11.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate extfsm 0.11.0 into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate extfsm 0.11.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extfsm 0.11.0
[INFO] finished tweaking crates.io crate extfsm 0.11.0
[INFO] tweaked toml for crates.io crate extfsm 0.11.0 written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dot v0.1.4
[INFO] [stderr]   Downloaded slog-atomic v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d474dbcc65b66295d348a84e20fb112524042be55fc9a8af4b49632ba6d0b51
[INFO] running `Command { std: "docker" "start" "-a" "5d474dbcc65b66295d348a84e20fb112524042be55fc9a8af4b49632ba6d0b51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d474dbcc65b66295d348a84e20fb112524042be55fc9a8af4b49632ba6d0b51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d474dbcc65b66295d348a84e20fb112524042be55fc9a8af4b49632ba6d0b51", kill_on_drop: false }`
[INFO] [stdout] 5d474dbcc65b66295d348a84e20fb112524042be55fc9a8af4b49632ba6d0b51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21b614cf10107cb99def68349c6fd66fb0fb18112260da9f682776a9c42a3f12
[INFO] running `Command { std: "docker" "start" "-a" "21b614cf10107cb99def68349c6fd66fb0fb18112260da9f682776a9c42a3f12", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling slog-async v2.7.0
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking enum_derive v0.1.7
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking dot v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking slog-atomic v2.0.0
[INFO] [stderr]     Checking extfsm v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | /     Fn(RefMut<Box<ExtendedState>>, EventType, OptionalFnArg<TransitionFnArguments>)
[INFO] [stdout] 107 | |         -> TransitionResult<EventType, StateType, TransitionFnArguments, ErrorType>;
[INFO] [stdout]     | |___________________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 106 ~     dyn Fn(RefMut<Box<ExtendedState>>, EventType, OptionalFnArg<TransitionFnArguments>)
[INFO] [stdout] 107 ~         -> TransitionResult<EventType, StateType, TransitionFnArguments, ErrorType>;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |   > = Fn(RefMut<Box<ExtendedState>>, Option<StateType>, Option<EventType>)
[INFO] [stdout]     |  _____^
[INFO] [stdout] 122 | |     -> TransitionResult<EventType, StateType, TransitionFnArguments, ErrorType>;
[INFO] [stdout]     | |_______________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 121 ~ > = dyn Fn(RefMut<Box<ExtendedState>>, Option<StateType>, Option<EventType>)
[INFO] [stdout] 122 ~     -> TransitionResult<EventType, StateType, TransitionFnArguments, ErrorType>;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |     i1: Box<Iterator<Item = ET>>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ET>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:234:13
[INFO] [stdout]     |
[INFO] [stdout] 234 |     i2: Box<Iterator<Item = &'static str>>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'static str>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/lib.rs:1220:40
[INFO] [stdout]      |
[INFO] [stdout] 1220 | ...                   Ok(mut v) => {
[INFO] [stdout]      |                          ----^
[INFO] [stdout]      |                          |
[INFO] [stdout]      |                          help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/lib.rs:1173:36
[INFO] [stdout]      |
[INFO] [stdout] 1173 | ...                   Ok(mut v) => match v {
[INFO] [stdout]      |                          ----^
[INFO] [stdout]      |                          |
[INFO] [stdout]      |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking slog-term v2.8.0
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | /     Fn(RefMut<Box<ExtendedState>>, EventType, OptionalFnArg<TransitionFnArguments>)
[INFO] [stdout] 107 | |         -> TransitionResult<EventType, StateType, TransitionFnArguments, ErrorType>;
[INFO] [stdout]     | |___________________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 106 ~     dyn Fn(RefMut<Box<ExtendedState>>, EventType, OptionalFnArg<TransitionFnArguments>)
[INFO] [stdout] 107 ~         -> TransitionResult<EventType, StateType, TransitionFnArguments, ErrorType>;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |   > = Fn(RefMut<Box<ExtendedState>>, Option<StateType>, Option<EventType>)
[INFO] [stdout]     |  _____^
[INFO] [stdout] 122 | |     -> TransitionResult<EventType, StateType, TransitionFnArguments, ErrorType>;
[INFO] [stdout]     | |_______________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 121 ~ > = dyn Fn(RefMut<Box<ExtendedState>>, Option<StateType>, Option<EventType>)
[INFO] [stdout] 122 ~     -> TransitionResult<EventType, StateType, TransitionFnArguments, ErrorType>;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |     i1: Box<Iterator<Item = ET>>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ET>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:234:13
[INFO] [stdout]     |
[INFO] [stdout] 234 |     i2: Box<Iterator<Item = &'static str>>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'static str>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/lib.rs:1220:40
[INFO] [stdout]      |
[INFO] [stdout] 1220 | ...                   Ok(mut v) => {
[INFO] [stdout]      |                          ----^
[INFO] [stdout]      |                          |
[INFO] [stdout]      |                          help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/lib.rs:1173:36
[INFO] [stdout]      |
[INFO] [stdout] 1173 | ...                   Ok(mut v) => match v {
[INFO] [stdout]      |                          ----^
[INFO] [stdout]      |                          |
[INFO] [stdout]      |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1530:29
[INFO] [stdout]      |
[INFO] [stdout] 1530 |             Ok(v) => panic!(format!("failed with {:?} # processed tokens as Ok(_)", v)),
[INFO] [stdout]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]      = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]      = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]      |
[INFO] [stdout] 1530 -             Ok(v) => panic!(format!("failed with {:?} # processed tokens as Ok(_)", v)),
[INFO] [stdout] 1530 +             Ok(v) => panic!("failed with {:?} # processed tokens as Ok(_)", v),
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.19s
[INFO] running `Command { std: "docker" "inspect" "21b614cf10107cb99def68349c6fd66fb0fb18112260da9f682776a9c42a3f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b614cf10107cb99def68349c6fd66fb0fb18112260da9f682776a9c42a3f12", kill_on_drop: false }`
[INFO] [stdout] 21b614cf10107cb99def68349c6fd66fb0fb18112260da9f682776a9c42a3f12
