[INFO] fetching crate kingslayer 0.5.2...
[INFO] building kingslayer-0.5.2 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate kingslayer 0.5.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate kingslayer 0.5.2 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 kingslayer 0.5.2
[INFO] finished tweaking crates.io crate kingslayer 0.5.2
[INFO] tweaked toml for crates.io crate kingslayer 0.5.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate kingslayer 0.5.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] 25097227aac2d98ec8c07dc05d1f8bee752c9321d3caba3a51df11eb988264c0
[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" "25097227aac2d98ec8c07dc05d1f8bee752c9321d3caba3a51df11eb988264c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25097227aac2d98ec8c07dc05d1f8bee752c9321d3caba3a51df11eb988264c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25097227aac2d98ec8c07dc05d1f8bee752c9321d3caba3a51df11eb988264c0", kill_on_drop: false }`
[INFO] [stdout] 25097227aac2d98ec8c07dc05d1f8bee752c9321d3caba3a51df11eb988264c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 2aa319d61a39a38334946ecdae9e5de65748d993a27b3d074d6b44e00fdac616
[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" "2aa319d61a39a38334946ecdae9e5de65748d993a27b3d074d6b44e00fdac616", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling ron v0.5.1
[INFO] [stderr]    Compiling kingslayer v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/world/mod.rs:21:20
[INFO] [stdout]    |
[INFO] [stdout] 21 |               panic!(format!(
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 22 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 23 | |                 self.curr_room
[INFO] [stdout] 24 | |             ))
[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] 21 |             panic!(
[INFO] [stdout] 22 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 23 |                 self.curr_room
[INFO] [stdout] 24 |             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/world/mod.rs:32:20
[INFO] [stdout]    |
[INFO] [stdout] 32 |               panic!(format!(
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 33 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 34 | |                 self.curr_room
[INFO] [stdout] 35 | |             ))
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[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] 32 |             panic!(
[INFO] [stdout] 33 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 34 |                 self.curr_room
[INFO] [stdout] 35 |             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/world/mod.rs:136:20
[INFO] [stdout]     |
[INFO] [stdout] 136 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 137 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 138 | |                 self.curr_room
[INFO] [stdout] 139 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[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] 136 |             panic!(
[INFO] [stdout] 137 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 138 |                 self.curr_room
[INFO] [stdout] 139 |             )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/world/mod.rs:147:20
[INFO] [stdout]     |
[INFO] [stdout] 147 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 148 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 149 | |                 self.curr_room
[INFO] [stdout] 150 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[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] 147 |             panic!(
[INFO] [stdout] 148 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 149 |                 self.curr_room
[INFO] [stdout] 150 |             )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/world/mod.rs:158:20
[INFO] [stdout]     |
[INFO] [stdout] 158 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 159 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 160 | |                 self.curr_room
[INFO] [stdout] 161 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[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] 158 |             panic!(
[INFO] [stdout] 159 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 160 |                 self.curr_room
[INFO] [stdout] 161 |             )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.05s
[INFO] running `Command { std: "docker" "inspect" "2aa319d61a39a38334946ecdae9e5de65748d993a27b3d074d6b44e00fdac616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aa319d61a39a38334946ecdae9e5de65748d993a27b3d074d6b44e00fdac616", kill_on_drop: false }`
[INFO] [stdout] 2aa319d61a39a38334946ecdae9e5de65748d993a27b3d074d6b44e00fdac616
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] cf92708398c10e5dc457abc09c5ece2873e8acfdd7e4c517780adb8cf5f12124
[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" "cf92708398c10e5dc457abc09c5ece2873e8acfdd7e4c517780adb8cf5f12124", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/world/mod.rs:21:20
[INFO] [stdout]    |
[INFO] [stdout] 21 |               panic!(format!(
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 22 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 23 | |                 self.curr_room
[INFO] [stdout] 24 | |             ))
[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] 21 |             panic!(
[INFO] [stdout] 22 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 23 |                 self.curr_room
[INFO] [stdout] 24 |             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/world/mod.rs:32:20
[INFO] [stdout]    |
[INFO] [stdout] 32 |               panic!(format!(
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 33 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 34 | |                 self.curr_room
[INFO] [stdout] 35 | |             ))
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[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] 32 |             panic!(
[INFO] [stdout] 33 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 34 |                 self.curr_room
[INFO] [stdout] 35 |             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/world/mod.rs:136:20
[INFO] [stdout]     |
[INFO] [stdout] 136 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 137 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 138 | |                 self.curr_room
[INFO] [stdout] 139 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[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] 136 |             panic!(
[INFO] [stdout] 137 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 138 |                 self.curr_room
[INFO] [stdout] 139 |             )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/world/mod.rs:147:20
[INFO] [stdout]     |
[INFO] [stdout] 147 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 148 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 149 | |                 self.curr_room
[INFO] [stdout] 150 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[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] 147 |             panic!(
[INFO] [stdout] 148 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 149 |                 self.curr_room
[INFO] [stdout] 150 |             )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/world/mod.rs:158:20
[INFO] [stdout]     |
[INFO] [stdout] 158 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 159 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 160 | |                 self.curr_room
[INFO] [stdout] 161 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[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] 158 |             panic!(
[INFO] [stdout] 159 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 160 |                 self.curr_room
[INFO] [stdout] 161 |             )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kingslayer v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/world/mod.rs:21:20
[INFO] [stdout]    |
[INFO] [stdout] 21 |               panic!(format!(
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 22 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 23 | |                 self.curr_room
[INFO] [stdout] 24 | |             ))
[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] 21 |             panic!(
[INFO] [stdout] 22 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 23 |                 self.curr_room
[INFO] [stdout] 24 |             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/world/mod.rs:32:20
[INFO] [stdout]    |
[INFO] [stdout] 32 |               panic!(format!(
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 33 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 34 | |                 self.curr_room
[INFO] [stdout] 35 | |             ))
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[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] 32 |             panic!(
[INFO] [stdout] 33 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 34 |                 self.curr_room
[INFO] [stdout] 35 |             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/world/mod.rs:136:20
[INFO] [stdout]     |
[INFO] [stdout] 136 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 137 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 138 | |                 self.curr_room
[INFO] [stdout] 139 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[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] 136 |             panic!(
[INFO] [stdout] 137 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 138 |                 self.curr_room
[INFO] [stdout] 139 |             )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/world/mod.rs:147:20
[INFO] [stdout]     |
[INFO] [stdout] 147 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 148 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 149 | |                 self.curr_room
[INFO] [stdout] 150 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[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] 147 |             panic!(
[INFO] [stdout] 148 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 149 |                 self.curr_room
[INFO] [stdout] 150 |             )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/world/mod.rs:158:20
[INFO] [stdout]     |
[INFO] [stdout] 158 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 159 | |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 160 | |                 self.curr_room
[INFO] [stdout] 161 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[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] 158 |             panic!(
[INFO] [stdout] 159 |                 "ERROR: {} is not a valid room (The world should be fixed).",
[INFO] [stdout] 160 |                 self.curr_room
[INFO] [stdout] 161 |             )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "cf92708398c10e5dc457abc09c5ece2873e8acfdd7e4c517780adb8cf5f12124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf92708398c10e5dc457abc09c5ece2873e8acfdd7e4c517780adb8cf5f12124", kill_on_drop: false }`
[INFO] [stdout] cf92708398c10e5dc457abc09c5ece2873e8acfdd7e4c517780adb8cf5f12124
