[INFO] updating cached repository https://github.com/wmww/bft
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 87e3b8dded2e49dd4faf75a9094bd3dba0ee3992
[INFO] checking wmww/bft against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwmww%2Fbft" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wmww/bft on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/wmww/bft
[INFO] finished tweaking git repo https://github.com/wmww/bft
[INFO] tweaked toml for git repo https://github.com/wmww/bft written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/wmww/bft already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b192d7a1139a6b279fadb6aeb58a5757d7cbc89250367bf9c3f3678c0837697a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b192d7a1139a6b279fadb6aeb58a5757d7cbc89250367bf9c3f3678c0837697a"`
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]     Checking bft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `self::colored::*`
[INFO] [stderr]  --> src/io/issue.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use self::colored::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/source/lexer.rs:59:20
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/source/lexer.rs:59:32
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stderr]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/source/lexer.rs:59:44
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stderr]    |                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::colored::*`
[INFO] [stderr]  --> src/io/issue.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use self::colored::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/source/lexer.rs:59:20
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/source/lexer.rs:59:32
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stderr]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/source/lexer.rs:59:44
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stderr]    |                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 11 |             Err(i) => {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `options`
[INFO] [stderr]   --> src/source/file.rs:14:29
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn open(path: &str, options: &io::Options) -> Result<File, String> {
[INFO] [stderr]    |                             ^^^^^^^ help: consider prefixing with an underscore: `_options`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `show_issue`
[INFO] [stderr]   --> src/io/options.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn show_issue(&self, issue: &Issue) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Debug`
[INFO] [stderr]  --> src/io/severity.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Debug,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InternalError`
[INFO] [stderr]  --> src/io/severity.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     InternalError,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Warning`
[INFO] [stderr]  --> src/io/severity.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Warning,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]  --> src/io/severity.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Error,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_ptr`
[INFO] [stderr]   --> src/runtime/debug.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn get_ptr(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_ptr`
[INFO] [stderr]   --> src/runtime/debug.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn set_ptr(&mut self, ptr: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `queue_input_str`
[INFO] [stderr]   --> src/runtime/debug.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn queue_input_str(&mut self, input: &str) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_string`
[INFO] [stderr]   --> src/source/file.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn from_string(contents: String) -> File {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `between`
[INFO] [stderr]    --> src/source/span.rs:114:5
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn between(a: &Span, b: &Span) -> Span {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `issue`
[INFO] [stderr]    --> src/source/span.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn issue(&self, severity: io::Severity, message: &str) -> io::Issue {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Generator`
[INFO] [stderr]    --> src/source/span.rs:155:1
[INFO] [stderr]     |
[INFO] [stderr] 155 | pub struct Generator {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 11 |             Err(i) => {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/source/span.rs:161:5
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn new(src: Rc<File>) -> Generator {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `skip`
[INFO] [stderr]    --> src/source/span.rs:165:5
[INFO] [stderr]     |
[INFO] [stderr] 165 |     pub fn skip(&mut self, bytes: i32) -> &mut Generator {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `jump_to`
[INFO] [stderr]    --> src/source/span.rs:170:5
[INFO] [stderr]     |
[INFO] [stderr] 170 |     pub fn jump_to(&mut self, byte: usize) -> &mut Generator {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]    --> src/source/span.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn reset(&mut self) -> &mut Generator {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `span`
[INFO] [stderr]    --> src/source/span.rs:179:5
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn span(&mut self, bytes: usize) -> Span {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]   --> src/source/token.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     String(String, source::Span),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token`
[INFO] [stderr]   --> src/source/token.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn token<'s>(self, span: source::Span) -> source::Token {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/runtime/tests.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let mut s = ::source::span::Generator::new(source.clone());
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `options`
[INFO] [stderr]   --> src/source/file.rs:14:29
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn open(path: &str, options: &io::Options) -> Result<File, String> {
[INFO] [stderr]    |                             ^^^^^^^ help: consider prefixing with an underscore: `_options`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime/tests.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let mut s = ::source::span::Generator::new(source.clone());
[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/runtime/tests.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut tokens = ::source::lex(source);
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `show_issue`
[INFO] [stderr]   --> src/io/options.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn show_issue(&self, issue: &Issue) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Debug`
[INFO] [stderr]  --> src/io/severity.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Debug,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InternalError`
[INFO] [stderr]  --> src/io/severity.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     InternalError,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Warning`
[INFO] [stderr]  --> src/io/severity.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Warning,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]  --> src/io/severity.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Error,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `between`
[INFO] [stderr]    --> src/source/span.rs:114:5
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn between(a: &Span, b: &Span) -> Span {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `issue`
[INFO] [stderr]    --> src/source/span.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn issue(&self, severity: io::Severity, message: &str) -> io::Issue {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `jump_to`
[INFO] [stderr]    --> src/source/span.rs:170:5
[INFO] [stderr]     |
[INFO] [stderr] 170 |     pub fn jump_to(&mut self, byte: usize) -> &mut Generator {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]    --> src/source/span.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn reset(&mut self) -> &mut Generator {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]   --> src/source/token.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     String(String, source::Span),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.26s
[INFO] running `"docker" "inspect" "b192d7a1139a6b279fadb6aeb58a5757d7cbc89250367bf9c3f3678c0837697a"`
[INFO] running `"docker" "rm" "-f" "b192d7a1139a6b279fadb6aeb58a5757d7cbc89250367bf9c3f3678c0837697a"`
[INFO] [stdout] b192d7a1139a6b279fadb6aeb58a5757d7cbc89250367bf9c3f3678c0837697a