[INFO] fetching crate extfsm 0.11.0...
[INFO] building extfsm-0.11.0 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate extfsm 0.11.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate extfsm 0.11.0 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e39f76117aaa2210e251bf73f97ce6185877293172a92d97307905088aa43248
[INFO] running `Command { std: "docker" "start" "-a" "e39f76117aaa2210e251bf73f97ce6185877293172a92d97307905088aa43248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e39f76117aaa2210e251bf73f97ce6185877293172a92d97307905088aa43248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39f76117aaa2210e251bf73f97ce6185877293172a92d97307905088aa43248", kill_on_drop: false }`
[INFO] [stdout] e39f76117aaa2210e251bf73f97ce6185877293172a92d97307905088aa43248
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9414dbcbf7785e42571e5e723b1fc69ae4b3b9e6f3f44e1db41eeef005c1882f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9414dbcbf7785e42571e5e723b1fc69ae4b3b9e6f3f44e1db41eeef005c1882f", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling enum_derive v0.1.7
[INFO] [stderr]    Compiling dot v0.1.4
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling 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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     Finished dev [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "9414dbcbf7785e42571e5e723b1fc69ae4b3b9e6f3f44e1db41eeef005c1882f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9414dbcbf7785e42571e5e723b1fc69ae4b3b9e6f3f44e1db41eeef005c1882f", kill_on_drop: false }`
[INFO] [stdout] 9414dbcbf7785e42571e5e723b1fc69ae4b3b9e6f3f44e1db41eeef005c1882f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99d2e3cfbc2bf9f9b6ef83d0292b5f288424c9668bc246cd75863a5c0f8a84ae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "99d2e3cfbc2bf9f9b6ef83d0292b5f288424c9668bc246cd75863a5c0f8a84ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling chrono v0.4.19
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling slog-atomic v2.0.0
[INFO] [stderr]    Compiling slog-term v2.8.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling slog-async v2.6.0
[INFO] [stderr]    Compiling 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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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_panic)]` on by default
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[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!("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 test [unoptimized + debuginfo] target(s) in 5.79s
[INFO] running `Command { std: "docker" "inspect" "99d2e3cfbc2bf9f9b6ef83d0292b5f288424c9668bc246cd75863a5c0f8a84ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99d2e3cfbc2bf9f9b6ef83d0292b5f288424c9668bc246cd75863a5c0f8a84ae", kill_on_drop: false }`
[INFO] [stdout] 99d2e3cfbc2bf9f9b6ef83d0292b5f288424c9668bc246cd75863a5c0f8a84ae
