[INFO] fetching crate nfd 0.0.4...
[INFO] testing nfd-0.0.4 against 1.47.0 for beta-1.48-1
[INFO] extracting crate nfd 0.0.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate nfd 0.0.4 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nfd 0.0.4
[INFO] finished tweaking crates.io crate nfd 0.0.4
[INFO] tweaked toml for crates.io crate nfd 0.0.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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" "+1.47.0" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e2fa62a244d3dcb897225fd6331681668b811c97e63d44d2e05934026829d9d
[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" "8e2fa62a244d3dcb897225fd6331681668b811c97e63d44d2e05934026829d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e2fa62a244d3dcb897225fd6331681668b811c97e63d44d2e05934026829d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e2fa62a244d3dcb897225fd6331681668b811c97e63d44d2e05934026829d9d", kill_on_drop: false }`
[INFO] [stdout] 8e2fa62a244d3dcb897225fd6331681668b811c97e63d44d2e05934026829d9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bccb5c00d55c80cf1361a8e2db0f7611b5c885fb65a0b2c778de6888364a2237
[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" "bccb5c00d55c80cf1361a8e2db0f7611b5c885fb65a0b2c778de6888364a2237", kill_on_drop: false }`
[INFO] [stderr]    Compiling nfd v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `gcc::Config`: gcc::Config has been renamed to gcc::Build
[INFO] [stdout]   --> build.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut cfg = gcc::Config::new();
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gcc::Build::new`: crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stdout]   --> build.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut cfg = gcc::Config::new();
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: nativefiledialog/src/nfd_gtk.c: In function 'AddFiltersToDialog':
[INFO] [stderr] warning: nativefiledialog/src/nfd_gtk.c:54:59: warning: '%s' directive output may be truncated writing up to 255 bytes into a region of size 254 [-Wformat-truncation=]
[INFO] [stderr] warning:    54 |             snprintf( typebufWildcard, NFD_MAX_STRLEN, "*.%s", typebuf );
[INFO] [stderr] warning:       |                                                           ^~   ~~~~~~~
[INFO] [stderr] warning: nativefiledialog/src/nfd_gtk.c:54:13: note: 'snprintf' output between 3 and 258 bytes into a destination of size 256
[INFO] [stderr] warning:    54 |             snprintf( typebufWildcard, NFD_MAX_STRLEN, "*.%s", typebuf );
[INFO] [stderr] warning:       |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:121:35
[INFO] [stdout]     |
[INFO] [stdout] 121 |             filter_list_cstring = try!(CString::new(fl_str));
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:129:36
[INFO] [stdout]     |
[INFO] [stdout] 129 |             default_path_cstring = try!(CString::new(dp_str));
[INFO] [stdout]     |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:26:48
[INFO] [stdout]    |
[INFO] [stdout] 26 |             NFDError::NulError(ref err) => err.description(),
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |             NFDError::Utf8Error(ref err) => err.description(),
[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 1.72s
[INFO] running `Command { std: "docker" "inspect" "bccb5c00d55c80cf1361a8e2db0f7611b5c885fb65a0b2c778de6888364a2237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bccb5c00d55c80cf1361a8e2db0f7611b5c885fb65a0b2c778de6888364a2237", kill_on_drop: false }`
[INFO] [stdout] bccb5c00d55c80cf1361a8e2db0f7611b5c885fb65a0b2c778de6888364a2237
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1a7b97abf5a9f29f970ebb995853553b687ff8a302240260d1e8ab9f50570f4
[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" "c1a7b97abf5a9f29f970ebb995853553b687ff8a302240260d1e8ab9f50570f4", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated type alias `gcc::Config`: gcc::Config has been renamed to gcc::Build
[INFO] [stdout]   --> build.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut cfg = gcc::Config::new();
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gcc::Build::new`: crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stdout]   --> build.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut cfg = gcc::Config::new();
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: nativefiledialog/src/nfd_gtk.c: In function 'AddFiltersToDialog':
[INFO] [stderr] warning: nativefiledialog/src/nfd_gtk.c:54:59: warning: '%s' directive output may be truncated writing up to 255 bytes into a region of size 254 [-Wformat-truncation=]
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:121:35
[INFO] [stdout]     |
[INFO] [stdout] 121 |             filter_list_cstring = try!(CString::new(fl_str));
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning:    54 |             snprintf( typebufWildcard, NFD_MAX_STRLEN, "*.%s", typebuf );
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:129:36
[INFO] [stdout]     |
[INFO] [stdout] 129 |             default_path_cstring = try!(CString::new(dp_str));
[INFO] [stdout]     |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning:       |                                                           ^~   ~~~~~~~
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:26:48
[INFO] [stdout]    |
[INFO] [stdout] 26 |             NFDError::NulError(ref err) => err.description(),
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: nativefiledialog/src/nfd_gtk.c:54:13: note: 'snprintf' output between 3 and 258 bytes into a destination of size 256
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |             NFDError::Utf8Error(ref err) => err.description(),
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning:    54 |             snprintf( typebufWildcard, NFD_MAX_STRLEN, "*.%s", typebuf );
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning:       |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]    Compiling nfd v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:121:35
[INFO] [stdout]     |
[INFO] [stdout] 121 |             filter_list_cstring = try!(CString::new(fl_str));
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:129:36
[INFO] [stdout]     |
[INFO] [stdout] 129 |             default_path_cstring = try!(CString::new(dp_str));
[INFO] [stdout]     |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:26:48
[INFO] [stdout]    |
[INFO] [stdout] 26 |             NFDError::NulError(ref err) => err.description(),
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |             NFDError::Utf8Error(ref err) => err.description(),
[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 1.15s
[INFO] running `Command { std: "docker" "inspect" "c1a7b97abf5a9f29f970ebb995853553b687ff8a302240260d1e8ab9f50570f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1a7b97abf5a9f29f970ebb995853553b687ff8a302240260d1e8ab9f50570f4", kill_on_drop: false }`
[INFO] [stdout] c1a7b97abf5a9f29f970ebb995853553b687ff8a302240260d1e8ab9f50570f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d5fd456f80956bb3c78d02756723b67eaee3f098064e6e5c3797027624bda0af
[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" "d5fd456f80956bb3c78d02756723b67eaee3f098064e6e5c3797027624bda0af", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated type alias `gcc::Config`: gcc::Config has been renamed to gcc::Build
[INFO] [stderr]   --> build.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut cfg = gcc::Config::new();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `gcc::Build::new`: crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stderr]   --> build.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut cfg = gcc::Config::new();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: nativefiledialog/src/nfd_gtk.c: In function 'AddFiltersToDialog':
[INFO] [stderr] warning: nativefiledialog/src/nfd_gtk.c:54:59: warning: '%s' directive output may be truncated writing up to 255 bytes into a region of size 254 [-Wformat-truncation=]
[INFO] [stderr] warning:    54 |             snprintf( typebufWildcard, NFD_MAX_STRLEN, "*.%s", typebuf );
[INFO] [stderr] warning:       |                                                           ^~   ~~~~~~~
[INFO] [stderr] warning: nativefiledialog/src/nfd_gtk.c:54:13: note: 'snprintf' output between 3 and 258 bytes into a destination of size 256
[INFO] [stderr] warning:    54 |             snprintf( typebufWildcard, NFD_MAX_STRLEN, "*.%s", typebuf );
[INFO] [stderr] warning:       |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:121:35
[INFO] [stderr]     |
[INFO] [stderr] 121 |             filter_list_cstring = try!(CString::new(fl_str));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:129:36
[INFO] [stderr]     |
[INFO] [stderr] 129 |             default_path_cstring = try!(CString::new(dp_str));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:26:48
[INFO] [stderr]    |
[INFO] [stderr] 26 |             NFDError::NulError(ref err) => err.description(),
[INFO] [stderr]    |                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 |             NFDError::Utf8Error(ref err) => err.description(),
[INFO] [stderr]    |                                                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:121:35
[INFO] [stderr]     |
[INFO] [stderr] 121 |             filter_list_cstring = try!(CString::new(fl_str));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:129:36
[INFO] [stderr]     |
[INFO] [stderr] 129 |             default_path_cstring = try!(CString::new(dp_str));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:26:48
[INFO] [stderr]    |
[INFO] [stderr] 26 |             NFDError::NulError(ref err) => err.description(),
[INFO] [stderr]    |                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 |             NFDError::Utf8Error(ref err) => err.description(),
[INFO] [stderr]    |                                                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nfd-ff94a8bc3dcb2447
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nfd
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d5fd456f80956bb3c78d02756723b67eaee3f098064e6e5c3797027624bda0af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5fd456f80956bb3c78d02756723b67eaee3f098064e6e5c3797027624bda0af", kill_on_drop: false }`
[INFO] [stdout] d5fd456f80956bb3c78d02756723b67eaee3f098064e6e5c3797027624bda0af
