[INFO] updating cached repository https://github.com/alan-andrade/tracker
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 65572e142b119cf57bc6e41242b483ae934fef8d
[INFO] testing alan-andrade/tracker against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Falan-andrade%2Ftracker" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alan-andrade/tracker on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alan-andrade/tracker
[INFO] finished tweaking git repo https://github.com/alan-andrade/tracker
[INFO] tweaked toml for git repo https://github.com/alan-andrade/tracker written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/alan-andrade/tracker already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 22afbb3562fbf33690ba1a500ab3500e3f047da84c5ba67dda0219b83b3a6b6d
[INFO] running `"docker" "start" "-a" "22afbb3562fbf33690ba1a500ab3500e3f047da84c5ba67dda0219b83b3a6b6d"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling hoedown v3.0.5
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling tracker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Markdown`
[INFO] [stderr]  --> src/term_renderer.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use hoedown::{Markdown, Render, Buffer};
[INFO] [stderr]   |               ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/term_renderer.rs:21:30
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn code_block(&mut self, output: &mut Buffer, text: &Buffer, lang: &Buffer) {
[INFO] [stderr]    |                              ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:26:52
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn quote_block(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                                    ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/term_renderer.rs:30:26
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn header(&mut self, output: &mut Buffer, content: &Buffer, level: i32) {
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `level`
[INFO] [stderr]   --> src/term_renderer.rs:30:65
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn header(&mut self, output: &mut Buffer, content: &Buffer, level: i32) {
[INFO] [stderr]    |                                                                 ^^^^^ help: consider prefixing with an underscore: `_level`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/term_renderer.rs:44:24
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn list(&mut self, output: &mut Buffer, content: &Buffer, flags: List) {
[INFO] [stderr]    |                        ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]   --> src/term_renderer.rs:44:63
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn list(&mut self, output: &mut Buffer, content: &Buffer, flags: List) {
[INFO] [stderr]    |                                                               ^^^^^ help: consider prefixing with an underscore: `_flags`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/term_renderer.rs:48:29
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn list_item(&mut self, output: &mut Buffer, content: &Buffer, flags: List) {
[INFO] [stderr]    |                             ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]   --> src/term_renderer.rs:48:68
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn list_item(&mut self, output: &mut Buffer, content: &Buffer, flags: List) {
[INFO] [stderr]    |                                                                    ^^^^^ help: consider prefixing with an underscore: `_flags`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/term_renderer.rs:54:29
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn paragraph(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                             ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:63:46
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn table(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                              ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:67:53
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn table_header(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                                     ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:71:51
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn table_body(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                                   ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:75:50
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn table_row(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                                  ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:79:51
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn table_cell(&mut self, output: &mut Buffer, content: &Buffer, flags: Table) {
[INFO] [stderr]    |                                                   ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]   --> src/term_renderer.rs:79:69
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn table_cell(&mut self, output: &mut Buffer, content: &Buffer, flags: Table) {
[INFO] [stderr]    |                                                                     ^^^^^ help: consider prefixing with an underscore: `_flags`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:83:50
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn footnotes(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                                  ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:87:60
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn footnote_definition(&mut self, output: &mut Buffer, content: &Buffer, num: u32) {
[INFO] [stderr]    |                                                            ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]   --> src/term_renderer.rs:87:78
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn footnote_definition(&mut self, output: &mut Buffer, content: &Buffer, num: u32) {
[INFO] [stderr]    |                                                                              ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> src/term_renderer.rs:91:51
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn html_block(&mut self, output: &mut Buffer, text: &Buffer) {
[INFO] [stderr]    |                                                   ^^^^ help: consider prefixing with an underscore: `_text`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/term_renderer.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 | /         writeln!(self.term, "CODE::: \n{:?} ::: {:?}", text.to_str().unwrap(),
[INFO] [stderr] 23 | |         lang.to_str().unwrap());
[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]    = note: this warning 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/term_renderer.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         writeln!(self.term, "{}", content.to_str().unwrap());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         writeln!(self.term, "");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |         self.term.reset();
[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/term_renderer.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         writeln!(self.term, "{}", content.to_str().unwrap());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         write!(self.term, "- {}", content.to_str().unwrap());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         self.term.reset();
[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/term_renderer.rs:58:29
[INFO] [stderr]    |
[INFO] [stderr] 58 |         for line in lines { writeln!(self.term, "{}", line); }
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         writeln!(self.term, "\n");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         self.term.reset();
[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 2.54s
[INFO] running `"docker" "inspect" "22afbb3562fbf33690ba1a500ab3500e3f047da84c5ba67dda0219b83b3a6b6d"`
[INFO] running `"docker" "rm" "-f" "22afbb3562fbf33690ba1a500ab3500e3f047da84c5ba67dda0219b83b3a6b6d"`
[INFO] [stdout] 22afbb3562fbf33690ba1a500ab3500e3f047da84c5ba67dda0219b83b3a6b6d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6cdd55c7e71e82f94e29456ebd0f6ae6c30a529e4c6fca6c16cec5408c300c58
[INFO] running `"docker" "start" "-a" "6cdd55c7e71e82f94e29456ebd0f6ae6c30a529e4c6fca6c16cec5408c300c58"`
[INFO] [stderr]    Compiling tracker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Markdown`
[INFO] [stderr]  --> src/term_renderer.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use hoedown::{Markdown, Render, Buffer};
[INFO] [stderr]   |               ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/term_renderer.rs:21:30
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn code_block(&mut self, output: &mut Buffer, text: &Buffer, lang: &Buffer) {
[INFO] [stderr]    |                              ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:26:52
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn quote_block(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                                    ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/term_renderer.rs:30:26
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn header(&mut self, output: &mut Buffer, content: &Buffer, level: i32) {
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `level`
[INFO] [stderr]   --> src/term_renderer.rs:30:65
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn header(&mut self, output: &mut Buffer, content: &Buffer, level: i32) {
[INFO] [stderr]    |                                                                 ^^^^^ help: consider prefixing with an underscore: `_level`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/term_renderer.rs:44:24
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn list(&mut self, output: &mut Buffer, content: &Buffer, flags: List) {
[INFO] [stderr]    |                        ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]   --> src/term_renderer.rs:44:63
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn list(&mut self, output: &mut Buffer, content: &Buffer, flags: List) {
[INFO] [stderr]    |                                                               ^^^^^ help: consider prefixing with an underscore: `_flags`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/term_renderer.rs:48:29
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn list_item(&mut self, output: &mut Buffer, content: &Buffer, flags: List) {
[INFO] [stderr]    |                             ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]   --> src/term_renderer.rs:48:68
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn list_item(&mut self, output: &mut Buffer, content: &Buffer, flags: List) {
[INFO] [stderr]    |                                                                    ^^^^^ help: consider prefixing with an underscore: `_flags`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/term_renderer.rs:54:29
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn paragraph(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                             ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:63:46
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn table(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                              ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:67:53
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn table_header(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                                     ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:71:51
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn table_body(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                                   ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:75:50
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn table_row(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                                  ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:79:51
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn table_cell(&mut self, output: &mut Buffer, content: &Buffer, flags: Table) {
[INFO] [stderr]    |                                                   ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]   --> src/term_renderer.rs:79:69
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn table_cell(&mut self, output: &mut Buffer, content: &Buffer, flags: Table) {
[INFO] [stderr]    |                                                                     ^^^^^ help: consider prefixing with an underscore: `_flags`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:83:50
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn footnotes(&mut self, output: &mut Buffer, content: &Buffer) {
[INFO] [stderr]    |                                                  ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `content`
[INFO] [stderr]   --> src/term_renderer.rs:87:60
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn footnote_definition(&mut self, output: &mut Buffer, content: &Buffer, num: u32) {
[INFO] [stderr]    |                                                            ^^^^^^^ help: consider prefixing with an underscore: `_content`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]   --> src/term_renderer.rs:87:78
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn footnote_definition(&mut self, output: &mut Buffer, content: &Buffer, num: u32) {
[INFO] [stderr]    |                                                                              ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> src/term_renderer.rs:91:51
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn html_block(&mut self, output: &mut Buffer, text: &Buffer) {
[INFO] [stderr]    |                                                   ^^^^ help: consider prefixing with an underscore: `_text`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/term_renderer.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 | /         writeln!(self.term, "CODE::: \n{:?} ::: {:?}", text.to_str().unwrap(),
[INFO] [stderr] 23 | |         lang.to_str().unwrap());
[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]    = note: this warning 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/term_renderer.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         writeln!(self.term, "{}", content.to_str().unwrap());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         writeln!(self.term, "");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |         self.term.reset();
[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/term_renderer.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         writeln!(self.term, "{}", content.to_str().unwrap());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         write!(self.term, "- {}", content.to_str().unwrap());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         self.term.reset();
[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/term_renderer.rs:58:29
[INFO] [stderr]    |
[INFO] [stderr] 58 |         for line in lines { writeln!(self.term, "{}", line); }
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         writeln!(self.term, "\n");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning 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/term_renderer.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         self.term.reset();
[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 0.26s
[INFO] running `"docker" "inspect" "6cdd55c7e71e82f94e29456ebd0f6ae6c30a529e4c6fca6c16cec5408c300c58"`
[INFO] running `"docker" "rm" "-f" "6cdd55c7e71e82f94e29456ebd0f6ae6c30a529e4c6fca6c16cec5408c300c58"`
[INFO] [stdout] 6cdd55c7e71e82f94e29456ebd0f6ae6c30a529e4c6fca6c16cec5408c300c58
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 57baef2ac03292f03e98da169da8621c70259e9eda10893b155d10d406e2faa1
[INFO] running `"docker" "start" "-a" "57baef2ac03292f03e98da169da8621c70259e9eda10893b155d10d406e2faa1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tracker-9f6e9b1e69cef9ef
[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 `"docker" "inspect" "57baef2ac03292f03e98da169da8621c70259e9eda10893b155d10d406e2faa1"`
[INFO] running `"docker" "rm" "-f" "57baef2ac03292f03e98da169da8621c70259e9eda10893b155d10d406e2faa1"`
[INFO] [stdout] 57baef2ac03292f03e98da169da8621c70259e9eda10893b155d10d406e2faa1