[INFO] crate rust_release_artefact 0.1.3 is already in cache
[INFO] extracting crate rust_release_artefact 0.1.3 into work/ex/clippy-test-run/sources/stable/reg/rust_release_artefact/0.1.3
[INFO] extracting crate rust_release_artefact 0.1.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rust_release_artefact/0.1.3
[INFO] validating manifest of rust_release_artefact-0.1.3 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rust_release_artefact-0.1.3 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rust_release_artefact-0.1.3
[INFO] finished frobbing rust_release_artefact-0.1.3
[INFO] frobbed toml for rust_release_artefact-0.1.3 written to work/ex/clippy-test-run/sources/stable/reg/rust_release_artefact/0.1.3/Cargo.toml
[INFO] started frobbing rust_release_artefact-0.1.3
[INFO] finished frobbing rust_release_artefact-0.1.3
[INFO] frobbed toml for rust_release_artefact-0.1.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rust_release_artefact/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting rust_release_artefact-0.1.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/rust_release_artefact/0.1.3:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 817875b6e934c7b23ee0eaff94521b59695a84ded9635d38947a5294c0903ed4
[INFO] running `"docker" "start" "-a" "817875b6e934c7b23ee0eaff94521b59695a84ded9635d38947a5294c0903ed4"`
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking tar v0.4.20
[INFO] [stderr]     Checking rust_release_artefact v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/lib.rs:251:56
[INFO] [stderr]     |
[INFO] [stderr] 251 |             return Err(Error::UnrecognisedManifestRule(line.into()));
[INFO] [stderr]     |                                                        ^^^^^^^^^^^ help: consider removing `.into()`: `line`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:448:16
[INFO] [stderr]     |
[INFO] [stderr] 448 |             if files.len() == 0 {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `files.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:455:12
[INFO] [stderr]     |
[INFO] [stderr] 455 |         if components.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `components.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/lib.rs:774:36
[INFO] [stderr]     |
[INFO] [stderr] 774 |                 dest_path.parent().unwrap_or(dest_root.as_ref()),
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| dest_root.as_ref())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/lib.rs:920:9
[INFO] [stderr]     |
[INFO] [stderr] 920 | /         match self {
[INFO] [stderr] 921 | |             &Error::IoError(ref inner) => write!(f, "{}", inner),
[INFO] [stderr] 922 | |             &Error::WalkDirError(ref inner) => write!(f, "{}", inner),
[INFO] [stderr] 923 | |             &Error::NoArtefacts(ref path) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 943 | |             ),
[INFO] [stderr] 944 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 920 |         match *self {
[INFO] [stderr] 921 |             Error::IoError(ref inner) => write!(f, "{}", inner),
[INFO] [stderr] 922 |             Error::WalkDirError(ref inner) => write!(f, "{}", inner),
[INFO] [stderr] 923 |             Error::NoArtefacts(ref path) => {
[INFO] [stderr] 924 |                 write!(f, "Staging area {:?} contains no artefacts", path)
[INFO] [stderr] 925 |             }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/lib.rs:950:9
[INFO] [stderr]     |
[INFO] [stderr] 950 | /         match self {
[INFO] [stderr] 951 | |             &Error::IoError(ref inner) => {
[INFO] [stderr] 952 | |                 <_ as error::Error>::description(inner)
[INFO] [stderr] 953 | |             }
[INFO] [stderr] ...   |
[INFO] [stderr] 969 | |             }
[INFO] [stderr] 970 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 950 |         match *self {
[INFO] [stderr] 951 |             Error::IoError(ref inner) => {
[INFO] [stderr] 952 |                 <_ as error::Error>::description(inner)
[INFO] [stderr] 953 |             }
[INFO] [stderr] 954 |             Error::WalkDirError(ref inner) => {
[INFO] [stderr] 955 |                 <_ as error::Error>::description(inner)
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/lib.rs:251:56
[INFO] [stderr]     |
[INFO] [stderr] 251 |             return Err(Error::UnrecognisedManifestRule(line.into()));
[INFO] [stderr]     |                                                        ^^^^^^^^^^^ help: consider removing `.into()`: `line`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:448:16
[INFO] [stderr]     |
[INFO] [stderr] 448 |             if files.len() == 0 {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `files.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:455:12
[INFO] [stderr]     |
[INFO] [stderr] 455 |         if components.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `components.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/lib.rs:774:36
[INFO] [stderr]     |
[INFO] [stderr] 774 |                 dest_path.parent().unwrap_or(dest_root.as_ref()),
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| dest_root.as_ref())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/lib.rs:920:9
[INFO] [stderr]     |
[INFO] [stderr] 920 | /         match self {
[INFO] [stderr] 921 | |             &Error::IoError(ref inner) => write!(f, "{}", inner),
[INFO] [stderr] 922 | |             &Error::WalkDirError(ref inner) => write!(f, "{}", inner),
[INFO] [stderr] 923 | |             &Error::NoArtefacts(ref path) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 943 | |             ),
[INFO] [stderr] 944 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 920 |         match *self {
[INFO] [stderr] 921 |             Error::IoError(ref inner) => write!(f, "{}", inner),
[INFO] [stderr] 922 |             Error::WalkDirError(ref inner) => write!(f, "{}", inner),
[INFO] [stderr] 923 |             Error::NoArtefacts(ref path) => {
[INFO] [stderr] 924 |                 write!(f, "Staging area {:?} contains no artefacts", path)
[INFO] [stderr] 925 |             }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/lib.rs:950:9
[INFO] [stderr]     |
[INFO] [stderr] 950 | /         match self {
[INFO] [stderr] 951 | |             &Error::IoError(ref inner) => {
[INFO] [stderr] 952 | |                 <_ as error::Error>::description(inner)
[INFO] [stderr] 953 | |             }
[INFO] [stderr] ...   |
[INFO] [stderr] 969 | |             }
[INFO] [stderr] 970 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 950 |         match *self {
[INFO] [stderr] 951 |             Error::IoError(ref inner) => {
[INFO] [stderr] 952 |                 <_ as error::Error>::description(inner)
[INFO] [stderr] 953 |             }
[INFO] [stderr] 954 |             Error::WalkDirError(ref inner) => {
[INFO] [stderr] 955 |                 <_ as error::Error>::description(inner)
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:993:9
[INFO] [stderr]     |
[INFO] [stderr] 993 | /         fs::File::create(artefact_path.join("rust-installer-version"))?
[INFO] [stderr] 994 | |             .write(b"3\n")?;
[INFO] [stderr]     | |___________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:996:9
[INFO] [stderr]     |
[INFO] [stderr] 996 | /         fs::File::create(artefact_path.join("version"))?
[INFO] [stderr] 997 | |             .write(b"1.2.3 (4d90ac38c 2018-04-03)")?;
[INFO] [stderr]     | |____________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:999:9
[INFO] [stderr]      |
[INFO] [stderr] 999  | /         fs::File::create(artefact_path.join("git-commit-hash"))?
[INFO] [stderr] 1000 | |             .write(b"4d90ac38c0b61bb69470b61ea2cccea0df48d9e5")?;
[INFO] [stderr]      | |________________________________________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1002:9
[INFO] [stderr]      |
[INFO] [stderr] 1002 | /         fs::File::create(artefact_path.join("components"))?
[INFO] [stderr] 1003 | |             .write(b"component-a\ncomponent-b\n")?;
[INFO] [stderr]      | |__________________________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1008:9
[INFO] [stderr]      |
[INFO] [stderr] 1008 | /         fs::File::create(component_a_path.join("a-file-1"))?
[INFO] [stderr] 1009 | |             .write(b"a-data-1")?;
[INFO] [stderr]      | |________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1010:9
[INFO] [stderr]      |
[INFO] [stderr] 1010 | /         fs::File::create(component_a_path.join("a-file-2"))?
[INFO] [stderr] 1011 | |             .write(b"a-data-2")?;
[INFO] [stderr]      | |________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1012:9
[INFO] [stderr]      |
[INFO] [stderr] 1012 | /         fs::File::create(component_a_path.join("manifest.in"))?
[INFO] [stderr] 1013 | |             .write(b"file:a-file-1\nfile:a-file-2\n")?;
[INFO] [stderr]      | |______________________________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1018:9
[INFO] [stderr]      |
[INFO] [stderr] 1018 | /         fs::File::create(component_b_path.join("b-file-1"))?
[INFO] [stderr] 1019 | |             .write(b"b-data-1")?;
[INFO] [stderr]      | |________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1024:9
[INFO] [stderr]      |
[INFO] [stderr] 1024 | /         fs::File::create(component_b_subdir_path.join("sub-file-1"))?
[INFO] [stderr] 1025 | |             .write(b"sub-data-1")?;
[INFO] [stderr]      | |__________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1026:9
[INFO] [stderr]      |
[INFO] [stderr] 1026 | /         fs::File::create(component_b_subdir_path.join("sub-file-2"))?
[INFO] [stderr] 1027 | |             .write(b"sub-data-2")?;
[INFO] [stderr]      | |__________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1028:9
[INFO] [stderr]      |
[INFO] [stderr] 1028 | /         fs::File::create(component_b_subdir_path.join("sub-file-3"))?
[INFO] [stderr] 1029 | |             .write(b"sub-data-3")?;
[INFO] [stderr]      | |__________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1031:9
[INFO] [stderr]      |
[INFO] [stderr] 1031 | /         fs::File::create(component_b_path.join("manifest.in"))?
[INFO] [stderr] 1032 | |             .write(b"file:b-file-1\ndir:subdir\n")?;
[INFO] [stderr]      | |___________________________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a BTreeMap. Using `[]` is more clear and more concise
[INFO] [stderr]     --> src/lib.rs:1057:13
[INFO] [stderr]      |
[INFO] [stderr] 1057 |             artefact.components.get("component-a").unwrap(),
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&artefact.components["component-a"]`
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a BTreeMap. Using `[]` is more clear and more concise
[INFO] [stderr]     --> src/lib.rs:1071:13
[INFO] [stderr]      |
[INFO] [stderr] 1071 |             artefact.components.get("component-b").unwrap(),
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&artefact.components["component-b"]`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1119:9
[INFO] [stderr]      |
[INFO] [stderr] 1119 | /         fs::File::create(other_artefact_path.join("rust-installer-version"))
[INFO] [stderr] 1120 | |             .unwrap()
[INFO] [stderr] 1121 | |             .write(b"3\n")
[INFO] [stderr] 1122 | |             .unwrap();
[INFO] [stderr]      | |_____________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1144:9
[INFO] [stderr]      |
[INFO] [stderr] 1144 | /         fs::OpenOptions::new()
[INFO] [stderr] 1145 | |             .write(true)
[INFO] [stderr] 1146 | |             .truncate(true)
[INFO] [stderr] 1147 | |             .open(stage.path().join("some-artefact/rust-installer-version"))
[INFO] [stderr] 1148 | |             .unwrap()
[INFO] [stderr] 1149 | |             .write(b"37")
[INFO] [stderr] 1150 | |             .unwrap();
[INFO] [stderr]      | |_____________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1234:9
[INFO] [stderr]      |
[INFO] [stderr] 1234 | /         fs::OpenOptions::new()
[INFO] [stderr] 1235 | |             .write(true)
[INFO] [stderr] 1236 | |             .append(true)
[INFO] [stderr] 1237 | |             .open(stage.path().join("some-artefact/components"))
[INFO] [stderr] 1238 | |             .unwrap()
[INFO] [stderr] 1239 | |             .write(b"\x88\x88\n")
[INFO] [stderr] 1240 | |             .unwrap();
[INFO] [stderr]      | |_____________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1254:9
[INFO] [stderr]      |
[INFO] [stderr] 1254 | /         fs::OpenOptions::new()
[INFO] [stderr] 1255 | |             .write(true)
[INFO] [stderr] 1256 | |             .append(true)
[INFO] [stderr] 1257 | |             .open(stage.path().join("some-artefact/components"))
[INFO] [stderr] 1258 | |             .unwrap()
[INFO] [stderr] 1259 | |             .write(b"invalid\0component\n")
[INFO] [stderr] 1260 | |             .unwrap();
[INFO] [stderr]      | |_____________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1274:9
[INFO] [stderr]      |
[INFO] [stderr] 1274 | /         fs::OpenOptions::new()
[INFO] [stderr] 1275 | |             .write(true)
[INFO] [stderr] 1276 | |             .append(true)
[INFO] [stderr] 1277 | |             .open(stage.path().join("some-artefact/components"))
[INFO] [stderr] 1278 | |             .unwrap()
[INFO] [stderr] 1279 | |             .write(b"missing-component\n")
[INFO] [stderr] 1280 | |             .unwrap();
[INFO] [stderr]      | |_____________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]     --> src/lib.rs:1297:9
[INFO] [stderr]      |
[INFO] [stderr] 1297 | /         fs::OpenOptions::new()
[INFO] [stderr] 1298 | |             .write(true)
[INFO] [stderr] 1299 | |             .append(true)
[INFO] [stderr] 1300 | |             .open(stage.path().join("some-artefact/component-a/manifest.in"))
[INFO] [stderr] 1301 | |             .unwrap()
[INFO] [stderr] 1302 | |             .write(b"bogus\n")
[INFO] [stderr] 1303 | |             .unwrap();
[INFO] [stderr]      | |_____________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a BTreeMap. Using `[]` is more clear and more concise
[INFO] [stderr]     --> src/lib.rs:1335:9
[INFO] [stderr]      |
[INFO] [stderr] 1335 | /         artefact
[INFO] [stderr] 1336 | |             .components
[INFO] [stderr] 1337 | |             .get("component-a")
[INFO] [stderr] 1338 | |             .unwrap()
[INFO] [stderr]      | |_____________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] help: try this
[INFO] [stderr]      |
[INFO] [stderr] 1335 |         &artefact
[INFO] [stderr] 1336 |             .components["component-a"]
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a BTreeMap. Using `[]` is more clear and more concise
[INFO] [stderr]     --> src/lib.rs:1353:9
[INFO] [stderr]      |
[INFO] [stderr] 1353 | /         artefact
[INFO] [stderr] 1354 | |             .components
[INFO] [stderr] 1355 | |             .get("component-b")
[INFO] [stderr] 1356 | |             .unwrap()
[INFO] [stderr]      | |_____________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] help: try this
[INFO] [stderr]      |
[INFO] [stderr] 1353 |         &artefact
[INFO] [stderr] 1354 |             .components["component-b"]
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a BTreeMap. Using `[]` is more clear and more concise
[INFO] [stderr]     --> src/lib.rs:1378:27
[INFO] [stderr]      |
[INFO] [stderr] 1378 |         let component_b = artefact.components.get("component-b").unwrap();
[INFO] [stderr]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&artefact.components["component-b"]`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 18 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rust_release_artefact`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "817875b6e934c7b23ee0eaff94521b59695a84ded9635d38947a5294c0903ed4"`
[INFO] running `"docker" "rm" "-f" "817875b6e934c7b23ee0eaff94521b59695a84ded9635d38947a5294c0903ed4"`
[INFO] [stdout] 817875b6e934c7b23ee0eaff94521b59695a84ded9635d38947a5294c0903ed4