[INFO] updating cached repository vroland/mwlint
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vroland/mwlint
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vroland/mwlint" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/vroland/mwlint"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/vroland/mwlint'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vroland/mwlint" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/vroland/mwlint"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/vroland/mwlint'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c3796f138eb5e019d83f2693283043c60321c366
[INFO] sha for GitHub repo vroland/mwlint: c3796f138eb5e019d83f2693283043c60321c366
[INFO] validating manifest of vroland/mwlint on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vroland/mwlint on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vroland/mwlint
[INFO] finished frobbing vroland/mwlint
[INFO] frobbed toml for vroland/mwlint written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/vroland/mwlint/Cargo.toml
[INFO] started frobbing vroland/mwlint
[INFO] finished frobbing vroland/mwlint
[INFO] frobbed toml for vroland/mwlint written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/vroland/mwlint/Cargo.toml
[INFO] crate vroland/mwlint already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking vroland/mwlint against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-4/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/vroland/mwlint:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7a6eae2563a89ea5842949086cdefbfcbd99a05523d1e0a681b0f594ff7f7ba7
[INFO] running `"docker" "start" "-a" "7a6eae2563a89ea5842949086cdefbfcbd99a05523d1e0a681b0f594ff7f7ba7"`
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling dtoa v0.4.3
[INFO] [stderr]    Compiling peg v0.5.7
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking serde_yaml v0.8.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling structopt-derive v0.2.13
[INFO] [stderr]    Compiling yaml-rust v0.4.2
[INFO] [stderr]     Checking structopt v0.2.13
[INFO] [stderr]    Compiling mediawiki_parser v0.4.1
[INFO] [stderr]    Compiling mwparser_utils_derive v0.1.0 (https://github.com/vroland/mediawiki-parser-utils.git#d6705314)
[INFO] [stderr]     Checking mwparser_utils v0.1.0 (https://github.com/vroland/mediawiki-parser-utils.git#d6705314)
[INFO] [stderr]     Checking mfnf_template_spec v0.1.0 (https://github.com/vroland/mfnf-template-spec.git#9af5c1d9)
[INFO] [stderr]     Checking mwlint v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rule.rs:127:20
[INFO] [stderr]     |
[INFO] [stderr] 127 |         rule: &mut Rule<'e, 's>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rule.rs:135:20
[INFO] [stderr]     |
[INFO] [stderr] 135 |         rule: &mut Rule<'e, 's>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/check_formulas.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |         _: &mut io::Write,
[INFO] [stderr]    |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/check_headings.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |         _: &mut io::Write,
[INFO] [stderr]    |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/check_html.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |         _: &mut io::Write,
[INFO] [stderr]    |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rules/check_lists.rs:199:65
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn work(&mut self, root: &'e Element, _: &Settings, _: &mut io::Write) -> io::Result<bool> {
[INFO] [stderr]     |                                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rules/check_templates.rs:233:65
[INFO] [stderr]     |
[INFO] [stderr] 233 |     fn work(&mut self, root: &'e Element, _: &Settings, _: &mut io::Write) -> io::Result<bool> {
[INFO] [stderr]     |                                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rules/check_templates.rs:280:32
[INFO] [stderr]     |
[INFO] [stderr] 280 |                     rule: &mut Rule<'e, 's>,
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/mod.rs:23:43
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn get_rules<'e, 's: 'e>() -> Vec<Box<Rule<'e, 's>>> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rule.rs:127:20
[INFO] [stderr]     |
[INFO] [stderr] 127 |         rule: &mut Rule<'e, 's>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rule.rs:135:20
[INFO] [stderr]     |
[INFO] [stderr] 135 |         rule: &mut Rule<'e, 's>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/check_formulas.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |         _: &mut io::Write,
[INFO] [stderr]    |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/check_headings.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |         _: &mut io::Write,
[INFO] [stderr]    |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/check_html.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |         _: &mut io::Write,
[INFO] [stderr]    |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rules/check_lists.rs:199:65
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn work(&mut self, root: &'e Element, _: &Settings, _: &mut io::Write) -> io::Result<bool> {
[INFO] [stderr]     |                                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rules/check_templates.rs:233:65
[INFO] [stderr]     |
[INFO] [stderr] 233 |     fn work(&mut self, root: &'e Element, _: &Settings, _: &mut io::Write) -> io::Result<bool> {
[INFO] [stderr]     |                                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rules/check_templates.rs:280:32
[INFO] [stderr]     |
[INFO] [stderr] 280 |                     rule: &mut Rule<'e, 's>,
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/mod.rs:23:43
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn get_rules<'e, 's: 'e>() -> Vec<Box<Rule<'e, 's>>> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/mod.rs:24:28
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut rules: Vec<Box<Rule<'e, 's>>> = vec![];
[INFO] [stderr]    |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/mod.rs:35:21
[INFO] [stderr]    |
[INFO] [stderr] 35 |     rules: &'r [Box<Rule<'e, 's>>],
[INFO] [stderr]    |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/mod.rs:24:28
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut rules: Vec<Box<Rule<'e, 's>>> = vec![];
[INFO] [stderr]    |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rules/mod.rs:35:21
[INFO] [stderr]    |
[INFO] [stderr] 35 |     rules: &'r [Box<Rule<'e, 's>>],
[INFO] [stderr]    |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn Rule<'e, 's>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/rules/check_templates.rs:252:50
[INFO] [stderr]     |
[INFO] [stderr] 252 |                 let article_name = template_name.trim_left_matches("#lst:").trim();
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/rules/check_templates.rs:252:50
[INFO] [stderr]     |
[INFO] [stderr] 252 |                 let article_name = template_name.trim_left_matches("#lst:").trim();
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/rules/check_lists.rs:216:29
[INFO] [stderr]     |
[INFO] [stderr] 216 |                         let mut position = if is_last {
[INFO] [stderr]     |                             ----^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/rules/check_lists.rs:216:29
[INFO] [stderr]     |
[INFO] [stderr] 216 |                         let mut position = if is_last {
[INFO] [stderr]     |                             ----^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/mwlint.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/mwlint.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/mwlint.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     for mut rule in &mut rules {
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/mwlint.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     for mut rule in &mut rules {
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `"docker" "inspect" "7a6eae2563a89ea5842949086cdefbfcbd99a05523d1e0a681b0f594ff7f7ba7"`
[INFO] running `"docker" "rm" "-f" "7a6eae2563a89ea5842949086cdefbfcbd99a05523d1e0a681b0f594ff7f7ba7"`
[INFO] [stdout] 7a6eae2563a89ea5842949086cdefbfcbd99a05523d1e0a681b0f594ff7f7ba7