[INFO] updating cached repository rust-leipzig/wiki
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rust-leipzig/wiki
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rust-leipzig/wiki" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/rust-leipzig/wiki"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/rust-leipzig/wiki'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rust-leipzig/wiki" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/rust-leipzig/wiki"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/rust-leipzig/wiki'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b67e14b0544394bf2fedcedbbd2354a7de1a424e
[INFO] sha for GitHub repo rust-leipzig/wiki: b67e14b0544394bf2fedcedbbd2354a7de1a424e
[INFO] validating manifest of rust-leipzig/wiki on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rust-leipzig/wiki on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rust-leipzig/wiki
[INFO] finished frobbing rust-leipzig/wiki
[INFO] frobbed toml for rust-leipzig/wiki written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/rust-leipzig/wiki/Cargo.toml
[INFO] started frobbing rust-leipzig/wiki
[INFO] finished frobbing rust-leipzig/wiki
[INFO] frobbed toml for rust-leipzig/wiki written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/rust-leipzig/wiki/Cargo.toml
[INFO] crate rust-leipzig/wiki has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building rust-leipzig/wiki against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/rust-leipzig/wiki:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 56e5d129eecf68e41bce4a1e8adcf2e1f395c729ea18536c935e13e78c79a54a
[INFO] running `"docker" "start" "-a" "56e5d129eecf68e41bce4a1e8adcf2e1f395c729ea18536c935e13e78c79a54a"`
[INFO] [stderr]    Compiling gcc v0.3.50
[INFO] [stderr]    Compiling version_check v0.1.2
[INFO] [stderr]    Compiling term v0.4.5
[INFO] [stderr]    Compiling pipeline v0.5.0
[INFO] [stderr]    Compiling uuid v0.5.0
[INFO] [stderr]    Compiling markdown v0.2.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling hyper v0.10.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]    Compiling iron v0.5.1
[INFO] [stderr]    Compiling backtrace v0.3.2
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling mowl v1.0.3
[INFO] [stderr]    Compiling wiki v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `IronError`
[INFO] [stderr]  --> src/error.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | use iron::error::{HttpError, IronError};
[INFO] [stderr]   |                              ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/lib.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 162 |         /// Remove all input_paths
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/lib.rs:165:9
[INFO] [stderr]     |
[INFO] [stderr] 165 |         /// Gather new content
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/lib.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         /// Use the current working directory as a fallback
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     foreign_links {
[INFO] [stderr] 9  | |         Io(io::Error) #[doc="An I/O error"];
[INFO] [stderr] 10 | |         Glob(glob::GlobError) #[doc="A glob error"];
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     }
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     foreign_links {
[INFO] [stderr] 9  | |         Io(io::Error) #[doc="An I/O error"];
[INFO] [stderr] 10 | |         Glob(glob::GlobError) #[doc="A glob error"];
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     }
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:254:20
[INFO] [stderr]     |
[INFO] [stderr] 254 |                    fs::create_dir(&file_directory);
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:267:17
[INFO] [stderr]     |
[INFO] [stderr] 267 |                 fs::create_dir_all(page_files_path.as_str());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:294:17
[INFO] [stderr]     |
[INFO] [stderr] 294 |                 html_file.read_to_string(&mut buffer);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:298:17
[INFO] [stderr]     |
[INFO] [stderr] 298 |                 html_file.write((&buffer).as_bytes());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `IronError`
[INFO] [stderr]  --> src/error.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | use iron::error::{HttpError, IronError};
[INFO] [stderr]   |                              ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     foreign_links {
[INFO] [stderr] 9  | |         Io(io::Error) #[doc="An I/O error"];
[INFO] [stderr] 10 | |         Glob(glob::GlobError) #[doc="A glob error"];
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     }
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     foreign_links {
[INFO] [stderr] 9  | |         Io(io::Error) #[doc="An I/O error"];
[INFO] [stderr] 10 | |         Glob(glob::GlobError) #[doc="A glob error"];
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     }
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     wiki.read_files(file_directory, output_directory);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.06s
[INFO] running `"docker" "inspect" "56e5d129eecf68e41bce4a1e8adcf2e1f395c729ea18536c935e13e78c79a54a"`
[INFO] running `"docker" "rm" "-f" "56e5d129eecf68e41bce4a1e8adcf2e1f395c729ea18536c935e13e78c79a54a"`
[INFO] [stdout] 56e5d129eecf68e41bce4a1e8adcf2e1f395c729ea18536c935e13e78c79a54a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/rust-leipzig/wiki:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9acd6a30a2bb0dc85323f89e1b8708944508df69b0ecb9841f2add2377004ce9
[INFO] running `"docker" "start" "-a" "9acd6a30a2bb0dc85323f89e1b8708944508df69b0ecb9841f2add2377004ce9"`
[INFO] [stderr]    Compiling wiki v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `IronError`
[INFO] [stderr] warning: unused import: `IronError`
[INFO] [stderr]  --> src/error.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | use iron::error::{HttpError, IronError};
[INFO] [stderr]   |                              ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]  --> src/error.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | use iron::error::{HttpError, IronError};
[INFO] [stderr]   |                              ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/lib.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 162 |         /// Remove all input_paths
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/lib.rs:165:9
[INFO] [stderr]     |
[INFO] [stderr] 165 |         /// Gather new content
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/lib.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         /// Use the current working directory as a fallback
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     foreign_links {
[INFO] [stderr] 9  | |         Io(io::Error) #[doc="An I/O error"];
[INFO] [stderr] 10 | |         Glob(glob::GlobError) #[doc="A glob error"];
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     }
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     foreign_links {
[INFO] [stderr] 9  | |         Io(io::Error) #[doc="An I/O error"];
[INFO] [stderr] 10 | |         Glob(glob::GlobError) #[doc="A glob error"];
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     }
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     wiki.read_files(file_directory, output_directory);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     foreign_links {
[INFO] [stderr] 9  | |         Io(io::Error) #[doc="An I/O error"];
[INFO] [stderr] 10 | |         Glob(glob::GlobError) #[doc="A glob error"];
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     }
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     foreign_links {
[INFO] [stderr] 9  | |         Io(io::Error) #[doc="An I/O error"];
[INFO] [stderr] 10 | |         Glob(glob::GlobError) #[doc="A glob error"];
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     }
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:254:20
[INFO] [stderr]     |
[INFO] [stderr] 254 |                    fs::create_dir(&file_directory);
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:267:17
[INFO] [stderr]     |
[INFO] [stderr] 267 |                 fs::create_dir_all(page_files_path.as_str());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:294:17
[INFO] [stderr]     |
[INFO] [stderr] 294 |                 html_file.read_to_string(&mut buffer);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:298:17
[INFO] [stderr]     |
[INFO] [stderr] 298 |                 html_file.write((&buffer).as_bytes());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.19s
[INFO] running `"docker" "inspect" "9acd6a30a2bb0dc85323f89e1b8708944508df69b0ecb9841f2add2377004ce9"`
[INFO] running `"docker" "rm" "-f" "9acd6a30a2bb0dc85323f89e1b8708944508df69b0ecb9841f2add2377004ce9"`
[INFO] [stdout] 9acd6a30a2bb0dc85323f89e1b8708944508df69b0ecb9841f2add2377004ce9