[INFO] cloning repository https://github.com/kingsang/mockun
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kingsang/mockun" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkingsang%2Fmockun", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkingsang%2Fmockun'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64e742feb530732d55a872bd471aa4ecc8cd4c01
[INFO] testing kingsang/mockun against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkingsang%2Fmockun" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kingsang/mockun on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kingsang/mockun
[INFO] finished tweaking git repo https://github.com/kingsang/mockun
[INFO] tweaked toml for git repo https://github.com/kingsang/mockun written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/kingsang/mockun already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce90b25e4591ee0c5c6d929c0625edcc003b11a2ab47a4edd297b7809728d46c
[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" "ce90b25e4591ee0c5c6d929c0625edcc003b11a2ab47a4edd297b7809728d46c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce90b25e4591ee0c5c6d929c0625edcc003b11a2ab47a4edd297b7809728d46c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce90b25e4591ee0c5c6d929c0625edcc003b11a2ab47a4edd297b7809728d46c", kill_on_drop: false }`
[INFO] [stdout] ce90b25e4591ee0c5c6d929c0625edcc003b11a2ab47a4edd297b7809728d46c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 626908d8a19eff68bff62d31b44ffc69c83dcd5bd5ad65d9098fc3725f20ebc5
[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" "626908d8a19eff68bff62d31b44ffc69c83dcd5bd5ad65d9098fc3725f20ebc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling mockun v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:99:70
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let mut file = File::open(file_name).unwrap_or_else(|err| panic!(err.to_string() + USAGE));
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let mut file = File::open(file_name).unwrap_or_else(|err| panic!("{}", err.to_string() + USAGE));
[INFO] [stdout]    |                                                                      +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:100:68
[INFO] [stdout]     |
[INFO] [stdout] 100 |     file.read_to_string(&mut contents).unwrap_or_else(|err| panic!(err.to_string() + USAGE));
[INFO] [stdout]     |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 100 |     file.read_to_string(&mut contents).unwrap_or_else(|err| panic!("{}", err.to_string() + USAGE));
[INFO] [stdout]     |                                                                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:126:37
[INFO] [stdout]     |
[INFO] [stdout] 126 |     if pair_vec.len() != 2 { panic!(USAGE); }
[INFO] [stdout]     |                                     ^^^^^
[INFO] [stdout]     |
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 126 |     if pair_vec.len() != 2 { panic!("{}", USAGE); }
[INFO] [stdout]     |                                     +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     panic!(USAGE);
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 135 |     panic!("{}", USAGE);
[INFO] [stdout]     |            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:188:79
[INFO] [stdout]     |
[INFO] [stdout] 188 |   flg_index_opt.iter().for_each(|idx| { if args_vec.len() == idx + 1 { panic!(USAGE); } });
[INFO] [stdout]     |                                                                               ^^^^^
[INFO] [stdout]     |
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 188 |   flg_index_opt.iter().for_each(|idx| { if args_vec.len() == idx + 1 { panic!("{}", USAGE); } });
[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 2.20s
[INFO] running `Command { std: "docker" "inspect" "626908d8a19eff68bff62d31b44ffc69c83dcd5bd5ad65d9098fc3725f20ebc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "626908d8a19eff68bff62d31b44ffc69c83dcd5bd5ad65d9098fc3725f20ebc5", kill_on_drop: false }`
[INFO] [stdout] 626908d8a19eff68bff62d31b44ffc69c83dcd5bd5ad65d9098fc3725f20ebc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e0a40d15ff8c2438cd4aab0da380c5651e7bca4bf43fee6bf4abb0b96470021
[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" "8e0a40d15ff8c2438cd4aab0da380c5651e7bca4bf43fee6bf4abb0b96470021", kill_on_drop: false }`
[INFO] [stderr]    Compiling mockun v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:99:70
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let mut file = File::open(file_name).unwrap_or_else(|err| panic!(err.to_string() + USAGE));
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let mut file = File::open(file_name).unwrap_or_else(|err| panic!("{}", err.to_string() + USAGE));
[INFO] [stdout]    |                                                                      +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:100:68
[INFO] [stdout]     |
[INFO] [stdout] 100 |     file.read_to_string(&mut contents).unwrap_or_else(|err| panic!(err.to_string() + USAGE));
[INFO] [stdout]     |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 100 |     file.read_to_string(&mut contents).unwrap_or_else(|err| panic!("{}", err.to_string() + USAGE));
[INFO] [stdout]     |                                                                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:126:37
[INFO] [stdout]     |
[INFO] [stdout] 126 |     if pair_vec.len() != 2 { panic!(USAGE); }
[INFO] [stdout]     |                                     ^^^^^
[INFO] [stdout]     |
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 126 |     if pair_vec.len() != 2 { panic!("{}", USAGE); }
[INFO] [stdout]     |                                     +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     panic!(USAGE);
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 135 |     panic!("{}", USAGE);
[INFO] [stdout]     |            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:188:79
[INFO] [stdout]     |
[INFO] [stdout] 188 |   flg_index_opt.iter().for_each(|idx| { if args_vec.len() == idx + 1 { panic!(USAGE); } });
[INFO] [stdout]     |                                                                               ^^^^^
[INFO] [stdout]     |
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 188 |   flg_index_opt.iter().for_each(|idx| { if args_vec.len() == idx + 1 { panic!("{}", USAGE); } });
[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 0.99s
[INFO] running `Command { std: "docker" "inspect" "8e0a40d15ff8c2438cd4aab0da380c5651e7bca4bf43fee6bf4abb0b96470021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e0a40d15ff8c2438cd4aab0da380c5651e7bca4bf43fee6bf4abb0b96470021", kill_on_drop: false }`
[INFO] [stdout] 8e0a40d15ff8c2438cd4aab0da380c5651e7bca4bf43fee6bf4abb0b96470021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 38160d286aee8ada39c4f50eb0bb314380a41f5fe1d82ff054bc6d992d0854c1
[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" "38160d286aee8ada39c4f50eb0bb314380a41f5fe1d82ff054bc6d992d0854c1", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:99:70
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 99 |     let mut file = File::open(file_name).unwrap_or_else(|err| panic!(err.to_string() + USAGE));
[INFO] [stdout] 
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut file = File::open(file_name).unwrap_or_else(|err| panic!("{}", err.to_string() + USAGE));
[INFO] [stderr]    |                                                                      +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/main.rs:100:68
[INFO] [stderr]     |
[INFO] [stderr] 100 |     file.read_to_string(&mut contents).unwrap_or_else(|err| panic!(err.to_string() + USAGE));
[INFO] [stderr]     |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 100 |     file.read_to_string(&mut contents).unwrap_or_else(|err| panic!("{}", err.to_string() + USAGE));
[INFO] [stderr]     |                                                                    +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/main.rs:126:37
[INFO] [stderr]     |
[INFO] [stderr] 126 |     if pair_vec.len() != 2 { panic!(USAGE); }
[INFO] [stderr]     |                                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 126 |     if pair_vec.len() != 2 { panic!("{}", USAGE); }
[INFO] [stderr]     |                                     +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/main.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |     panic!(USAGE);
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 135 |     panic!("{}", USAGE);
[INFO] [stderr]     |            +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/main.rs:188:79
[INFO] [stderr]     |
[INFO] [stderr] 188 |   flg_index_opt.iter().for_each(|idx| { if args_vec.len() == idx + 1 { panic!(USAGE); } });
[INFO] [stderr]     |                                                                               ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 188 |   flg_index_opt.iter().for_each(|idx| { if args_vec.len() == idx + 1 { panic!("{}", USAGE); } });
[INFO] [stderr]     |                                                                               +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mockun` (bin "mockun" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mockun-704b0e5fd348554f)
[INFO] running `Command { std: "docker" "inspect" "38160d286aee8ada39c4f50eb0bb314380a41f5fe1d82ff054bc6d992d0854c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38160d286aee8ada39c4f50eb0bb314380a41f5fe1d82ff054bc6d992d0854c1", kill_on_drop: false }`
[INFO] [stdout] 38160d286aee8ada39c4f50eb0bb314380a41f5fe1d82ff054bc6d992d0854c1