[INFO] cloning repository https://github.com/birkin/log_rotate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/birkin/log_rotate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirkin%2Flog_rotate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirkin%2Flog_rotate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78dbe0434d3c172242bbd5b2e23cca8177712a72
[INFO] testing birkin/log_rotate against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirkin%2Flog_rotate" "/workspace/builds/worker-118/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-118/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/birkin/log_rotate on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/birkin/log_rotate
[INFO] finished tweaking git repo https://github.com/birkin/log_rotate
[INFO] tweaked toml for git repo https://github.com/birkin/log_rotate written to /workspace/builds/worker-118/source/Cargo.toml
[INFO] crate git repo https://github.com/birkin/log_rotate already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded envy v0.4.1
[INFO] [stderr]   Downloaded syn v1.0.27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e895c21b7e0a50e9fe5f8024f4b2aea246d907c4646d7327e926d890be71966
[INFO] running `Command { std: "docker" "start" "-a" "8e895c21b7e0a50e9fe5f8024f4b2aea246d907c4646d7327e926d890be71966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e895c21b7e0a50e9fe5f8024f4b2aea246d907c4646d7327e926d890be71966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e895c21b7e0a50e9fe5f8024f4b2aea246d907c4646d7327e926d890be71966", kill_on_drop: false }`
[INFO] [stdout] 8e895c21b7e0a50e9fe5f8024f4b2aea246d907c4646d7327e926d890be71966
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10887dd996487ea27a27e0fed5b9c9d4e53b7248b6c0037d68a0ef68eefb3231
[INFO] running `Command { std: "docker" "start" "-a" "10887dd996487ea27a27e0fed5b9c9d4e53b7248b6c0037d68a0ef68eefb3231", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling syn v1.0.27
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling envy v0.4.1
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling log_rotate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/main.rs:123:112
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let path_rfrnc = item["path"].as_str().unwrap_or_else( || {panic!("problem reading path from json-obj -- ``{:?}``");} );
[INFO] [stdout]     |                                                                                                                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let path_rfrnc = item["path"].as_str().unwrap_or_else( || {panic!("problem reading path from json-obj -- ``{:?}``", ...);} );
[INFO] [stdout]     |                                                                                                                       ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let path_rfrnc = item["path"].as_str().unwrap_or_else( || {panic!("{}", "problem reading path from json-obj -- ``{:?}``");} );
[INFO] [stdout]     |                                                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:213:21
[INFO] [stdout]     |
[INFO] [stdout] 213 |             panic!( err_message );
[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] 213 |             panic!( "{}", err_message );
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 213 |             std::panic::panic_any( err_message );
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:227:17
[INFO] [stdout]     |
[INFO] [stdout] 227 |         panic!( err_message );
[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] 227 |         panic!( "{}", err_message );
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 227 |         std::panic::panic_any( err_message );
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:237:21
[INFO] [stdout]     |
[INFO] [stdout] 237 |             panic!( err_message );
[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] 237 |             panic!( "{}", err_message );
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 237 |             std::panic::panic_any( err_message );
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.01s
[INFO] running `Command { std: "docker" "inspect" "10887dd996487ea27a27e0fed5b9c9d4e53b7248b6c0037d68a0ef68eefb3231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10887dd996487ea27a27e0fed5b9c9d4e53b7248b6c0037d68a0ef68eefb3231", kill_on_drop: false }`
[INFO] [stdout] 10887dd996487ea27a27e0fed5b9c9d4e53b7248b6c0037d68a0ef68eefb3231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 718238b00d6eacf644bf2aa8b7743718222995a741f0a9d29ed20b58c1a01a6f
[INFO] running `Command { std: "docker" "start" "-a" "718238b00d6eacf644bf2aa8b7743718222995a741f0a9d29ed20b58c1a01a6f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log_rotate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/main.rs:123:112
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let path_rfrnc = item["path"].as_str().unwrap_or_else( || {panic!("problem reading path from json-obj -- ``{:?}``");} );
[INFO] [stdout]     |                                                                                                                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let path_rfrnc = item["path"].as_str().unwrap_or_else( || {panic!("problem reading path from json-obj -- ``{:?}``", ...);} );
[INFO] [stdout]     |                                                                                                                       ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let path_rfrnc = item["path"].as_str().unwrap_or_else( || {panic!("{}", "problem reading path from json-obj -- ``{:?}``");} );
[INFO] [stdout]     |                                                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:213:21
[INFO] [stdout]     |
[INFO] [stdout] 213 |             panic!( err_message );
[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] 213 |             panic!( "{}", err_message );
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 213 |             std::panic::panic_any( err_message );
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:227:17
[INFO] [stdout]     |
[INFO] [stdout] 227 |         panic!( err_message );
[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] 227 |         panic!( "{}", err_message );
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 227 |         std::panic::panic_any( err_message );
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:237:21
[INFO] [stdout]     |
[INFO] [stdout] 237 |             panic!( err_message );
[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] 237 |             panic!( "{}", err_message );
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 237 |             std::panic::panic_any( err_message );
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `Command { std: "docker" "inspect" "718238b00d6eacf644bf2aa8b7743718222995a741f0a9d29ed20b58c1a01a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "718238b00d6eacf644bf2aa8b7743718222995a741f0a9d29ed20b58c1a01a6f", kill_on_drop: false }`
[INFO] [stdout] 718238b00d6eacf644bf2aa8b7743718222995a741f0a9d29ed20b58c1a01a6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 833a0dc12ac1cf83e40e54ef870a11901c2d5b51566d4600d19f6b6973381210
[INFO] running `Command { std: "docker" "start" "-a" "833a0dc12ac1cf83e40e54ef870a11901c2d5b51566d4600d19f6b6973381210", kill_on_drop: false }`
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stderr]    --> src/main.rs:123:112
[INFO] [stderr]     |
[INFO] [stderr] 123 |     let path_rfrnc = item["path"].as_str().unwrap_or_else( || {panic!("problem reading path from json-obj -- ``{:?}``");} );
[INFO] [stderr]     |                                                                                                                ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]     |
[INFO] [stderr] 123 |     let path_rfrnc = item["path"].as_str().unwrap_or_else( || {panic!("problem reading path from json-obj -- ``{:?}``", ...);} );
[INFO] [stderr]     |                                                                                                                       ^^^^^
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]     |
[INFO] [stderr] 123 |     let path_rfrnc = item["path"].as_str().unwrap_or_else( || {panic!("{}", "problem reading path from json-obj -- ``{:?}``");} );
[INFO] [stderr]     |                                                                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/main.rs:213:21
[INFO] [stderr]     |
[INFO] [stderr] 213 |             panic!( err_message );
[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] 213 |             panic!( "{}", err_message );
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 213 |             std::panic::panic_any( err_message );
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/main.rs:227:17
[INFO] [stderr]     |
[INFO] [stderr] 227 |         panic!( err_message );
[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] 227 |         panic!( "{}", err_message );
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 227 |         std::panic::panic_any( err_message );
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/main.rs:237:21
[INFO] [stderr]     |
[INFO] [stderr] 237 |             panic!( err_message );
[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] 237 |             panic!( "{}", err_message );
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 237 |             std::panic::panic_any( err_message );
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `log_rotate` (bin "log_rotate" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/log_rotate-d91f07df110fc948)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "833a0dc12ac1cf83e40e54ef870a11901c2d5b51566d4600d19f6b6973381210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "833a0dc12ac1cf83e40e54ef870a11901c2d5b51566d4600d19f6b6973381210", kill_on_drop: false }`
[INFO] [stdout] 833a0dc12ac1cf83e40e54ef870a11901c2d5b51566d4600d19f6b6973381210