[INFO] cloning repository https://github.com/wmww/bft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wmww/bft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwmww%2Fbft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwmww%2Fbft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87e3b8dded2e49dd4faf75a9094bd3dba0ee3992
[INFO] checking wmww/bft against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwmww%2Fbft" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wmww/bft on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-9/source/Cargo.toml
[INFO] crate git repo https://github.com/wmww/bft already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cddcb0601e2513ab079c7a9586075545fcbc0e6941658ecc7ff65bd61735bd97
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cddcb0601e2513ab079c7a9586075545fcbc0e6941658ecc7ff65bd61735bd97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cddcb0601e2513ab079c7a9586075545fcbc0e6941658ecc7ff65bd61735bd97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cddcb0601e2513ab079c7a9586075545fcbc0e6941658ecc7ff65bd61735bd97", kill_on_drop: false }`
[INFO] [stdout] cddcb0601e2513ab079c7a9586075545fcbc0e6941658ecc7ff65bd61735bd97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 161b974fa3fa036d82f33b8c151dbbd0f19111a971a534c5a1c3ef7041309bc7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "161b974fa3fa036d82f33b8c151dbbd0f19111a971a534c5a1c3ef7041309bc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]     Checking bft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::colored::*`
[INFO] [stdout]  --> src/io/issue.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use self::colored::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/source/lexer.rs:59:20
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/source/lexer.rs:59:32
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/source/lexer.rs:59:44
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stdout]    |                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::colored::*`
[INFO] [stdout]  --> src/io/issue.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use self::colored::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/source/lexer.rs:59:20
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/source/lexer.rs:59:32
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/source/lexer.rs:59:44
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 '0'...'9' | 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stdout]    |                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |             Err(i) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]   --> src/source/file.rs:14:29
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn open(path: &str, options: &io::Options) -> Result<File, String> {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |             Err(i) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/runtime/tests.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut s = ::source::span::Generator::new(source.clone());
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]   --> src/source/file.rs:14:29
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn open(path: &str, options: &io::Options) -> Result<File, String> {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `show_issue`
[INFO] [stdout]   --> src/io/options.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn show_issue(&self, issue: &Issue) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Debug`
[INFO] [stdout]  --> src/io/severity.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Debug,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InternalError`
[INFO] [stdout]  --> src/io/severity.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     InternalError,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Warning`
[INFO] [stdout]  --> src/io/severity.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Warning,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]  --> src/io/severity.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_ptr`
[INFO] [stdout]   --> src/runtime/debug.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn get_ptr(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_ptr`
[INFO] [stdout]   --> src/runtime/debug.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn set_ptr(&mut self, ptr: usize) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `queue_input_str`
[INFO] [stdout]   --> src/runtime/debug.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn queue_input_str(&mut self, input: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_string`
[INFO] [stdout]   --> src/source/file.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn from_string(contents: String) -> File {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `between`
[INFO] [stdout]    --> src/source/span.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn between(a: &Span, b: &Span) -> Span {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `issue`
[INFO] [stdout]    --> src/source/span.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn issue(&self, severity: io::Severity, message: &str) -> io::Issue {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Generator`
[INFO] [stdout]    --> src/source/span.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 | pub struct Generator {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/source/span.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn new(src: Rc<File>) -> Generator {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip`
[INFO] [stdout]    --> src/source/span.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 165 |     pub fn skip(&mut self, bytes: i32) -> &mut Generator {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump_to`
[INFO] [stdout]    --> src/source/span.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn jump_to(&mut self, byte: usize) -> &mut Generator {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]    --> src/source/span.rs:175:12
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn reset(&mut self) -> &mut Generator {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span`
[INFO] [stdout]    --> src/source/span.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn span(&mut self, bytes: usize) -> Span {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]   --> src/source/token.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     String(String, source::Span),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `token`
[INFO] [stdout]   --> src/source/token.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn token<'s>(self, span: source::Span) -> source::Token {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/runtime/tests.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut s = ::source::span::Generator::new(source.clone());
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/runtime/tests.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut tokens = ::source::lex(source);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `show_issue`
[INFO] [stdout]   --> src/io/options.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn show_issue(&self, issue: &Issue) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Debug`
[INFO] [stdout]  --> src/io/severity.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Debug,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InternalError`
[INFO] [stdout]  --> src/io/severity.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     InternalError,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Warning`
[INFO] [stdout]  --> src/io/severity.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Warning,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]  --> src/io/severity.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `between`
[INFO] [stdout]    --> src/source/span.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn between(a: &Span, b: &Span) -> Span {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `issue`
[INFO] [stdout]    --> src/source/span.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn issue(&self, severity: io::Severity, message: &str) -> io::Issue {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump_to`
[INFO] [stdout]    --> src/source/span.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn jump_to(&mut self, byte: usize) -> &mut Generator {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]    --> src/source/span.rs:175:12
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn reset(&mut self) -> &mut Generator {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]   --> src/source/token.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     String(String, source::Span),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.30s
[INFO] running `Command { std: "docker" "inspect" "161b974fa3fa036d82f33b8c151dbbd0f19111a971a534c5a1c3ef7041309bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161b974fa3fa036d82f33b8c151dbbd0f19111a971a534c5a1c3ef7041309bc7", kill_on_drop: false }`
[INFO] [stdout] 161b974fa3fa036d82f33b8c151dbbd0f19111a971a534c5a1c3ef7041309bc7