[INFO] updating cached repository https://github.com/ademonov/bingo-bot
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/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] 8c39e5b0cbb318b98097cdadafc211460c699bcf
[INFO] checking ademonov/bingo-bot against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fademonov%2Fbingo-bot" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ademonov/bingo-bot on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ademonov/bingo-bot
[INFO] finished tweaking git repo https://github.com/ademonov/bingo-bot
[INFO] tweaked toml for git repo https://github.com/ademonov/bingo-bot written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ademonov/bingo-bot already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/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=forbid" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 12146508d6d9744577312bc993f5be2c09e07c276f574e8d4dc8583413f158b7
[INFO] running `"docker" "start" "-a" "12146508d6d9744577312bc993f5be2c09e07c276f574e8d4dc8583413f158b7"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking serde_test v0.8.21
[INFO] [stderr]     Checking serde-value v0.3.1
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking serde_yaml v0.5.0
[INFO] [stderr]     Checking log4rs v0.5.2
[INFO] [stderr]     Checking bingo-bot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/formatting.rs:7:27
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn format(&self, fp: &FormatProvider) -> String;
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FormatProvider`
[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/bingo/cards.rs:63:27
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn format(&self, fp: &FormatProvider) -> String {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FormatProvider`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bingo/cards.rs:75:27
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn format(&self, fp: &FormatProvider) -> String {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FormatProvider`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/formatting.rs:7:27
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn format(&self, fp: &FormatProvider) -> String;
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FormatProvider`
[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/bingo/cards.rs:63:27
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn format(&self, fp: &FormatProvider) -> String {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FormatProvider`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bingo/cards.rs:75:27
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn format(&self, fp: &FormatProvider) -> String {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FormatProvider`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/bingo/words.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn split<'a, I>(s: &'a str) -> I where I: Iterator<Item = &'a &'a str> {
[INFO] [stderr]   |                     ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/http.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut s_buf:String;
[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: function is never used: `listening`
[INFO] [stderr]  --> src/http.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn listening(url: &str) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `handle_proc`
[INFO] [stderr]   --> src/http.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn handle_proc(req: Request, mut res: Response) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/formatting.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new() -> GitterMdFormatProvider{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/bingo/words.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn split<'a, I>(s: &'a str) -> I where I: Iterator<Item = &'a &'a str> {
[INFO] [stderr]   |                     ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/bingo/cards.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new(word: &'a str) -> CardCell<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `check`
[INFO] [stderr]   --> src/bingo/cards.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn check(&mut self) {
[INFO] [stderr]   |
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/bingo/cards.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new<I>(word_iter: I) -> Card<'a> where I: Iterator<Item = &'a &'a str> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `check_cell`
[INFO] [stderr]   --> src/bingo/cards.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn check_cell(&mut self, row: usize, col: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fill_cells`
[INFO] [stderr]   --> src/bingo/cards.rs:47:1
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn fill_cells<'a, I>(word_iter: I) -> [[CardCell<'a>; COL_COUNT]; ROW_COUNT] where I: Iterator<Item = &'a &'a str> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `split`
[INFO] [stderr]  --> src/bingo/words.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn split<'a, I>(s: &'a str) -> I where I: Iterator<Item = &'a &'a str> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Word`
[INFO] [stderr]  --> src/bingo/words.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Word {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/bingo/words.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 |      pub fn new(title: &str, synonyms: Vec<&str>) -> Word {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/http.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut s_buf:String;
[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: function is never used: `listening`
[INFO] [stderr]  --> src/http.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn listening(url: &str) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `handle_proc`
[INFO] [stderr]   --> src/http.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn handle_proc(req: Request, mut res: Response) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/formatting.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new() -> GitterMdFormatProvider{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `split`
[INFO] [stderr]  --> src/bingo/words.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn split<'a, I>(s: &'a str) -> I where I: Iterator<Item = &'a &'a str> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Word`
[INFO] [stderr]  --> src/bingo/words.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Word {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/bingo/words.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 |      pub fn new(title: &str, synonyms: Vec<&str>) -> Word {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.33s
[INFO] running `"docker" "inspect" "12146508d6d9744577312bc993f5be2c09e07c276f574e8d4dc8583413f158b7"`
[INFO] running `"docker" "rm" "-f" "12146508d6d9744577312bc993f5be2c09e07c276f574e8d4dc8583413f158b7"`
[INFO] [stdout] 12146508d6d9744577312bc993f5be2c09e07c276f574e8d4dc8583413f158b7