[INFO] cloning repository https://github.com/scratchyone/elk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scratchyone/elk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscratchyone%2Felk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscratchyone%2Felk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e760b98d7a20d179177d3e0478f998c4a76a534
[INFO] checking scratchyone/elk against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscratchyone%2Felk" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scratchyone/elk on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/scratchyone/elk
[INFO] finished tweaking git repo https://github.com/scratchyone/elk
[INFO] tweaked toml for git repo https://github.com/scratchyone/elk written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/scratchyone/elk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 521b8b2d491570e0bcc2fed24ac0ee04be25f2d72980fa679aa0ed35c2ef9b69
[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" "521b8b2d491570e0bcc2fed24ac0ee04be25f2d72980fa679aa0ed35c2ef9b69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "521b8b2d491570e0bcc2fed24ac0ee04be25f2d72980fa679aa0ed35c2ef9b69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "521b8b2d491570e0bcc2fed24ac0ee04be25f2d72980fa679aa0ed35c2ef9b69", kill_on_drop: false }`
[INFO] [stdout] 521b8b2d491570e0bcc2fed24ac0ee04be25f2d72980fa679aa0ed35c2ef9b69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 89077203fa351178dcadfedb57ac1b78f8254166d4447cb6f1681c34031e004b
[INFO] running `Command { std: "docker" "start" "-a" "89077203fa351178dcadfedb57ac1b78f8254166d4447cb6f1681c34031e004b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.62
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling beef v0.5.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking crossterm v0.16.0
[INFO] [stderr]     Checking colour v0.5.0
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking elk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/interpreter.rs:196:25
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         show_error(format!("idk how to push to that"), &span);
[INFO] [stdout]     |                         ----------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 196 |                         Ok(Value::Null)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:360:17
[INFO] [stdout]     |
[INFO] [stdout] 359 |                 (a, b) => Ok(Value::String(a.to_string() + &b.to_string())),
[INFO] [stdout]     |                 ------ matches any value
[INFO] [stdout] 360 |                 _ => show_error(format!("Cannot add conflicting types"), &span),
[INFO] [stdout]     |                 ^ unreachable pattern
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/parser.rs:279:28
[INFO] [stdout]     |
[INFO] [stdout] 279 |         (Token::ObjectName(n), _) => match tokens.peek(1) {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/parser.rs:566:28
[INFO] [stdout]     |
[INFO] [stdout] 566 |         (Token::ObjectName(name), _) => match tokens.peek(1) {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func_var_map`
[INFO] [stdout]    --> src/interpreter.rs:267:53
[INFO] [stdout]     |
[INFO] [stdout] 267 |                 if let Value::Func(arg_names, code, func_var_map) = v.value.clone() {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_func_var_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `statements`
[INFO] [stdout]   --> src/interpreter.rs:22:30
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Self::Func(args, statements, var_map) => {
[INFO] [stdout]    |                              ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statements`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/interpreter.rs:196:25
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         show_error(format!("idk how to push to that"), &span);
[INFO] [stdout]     |                         ----------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 196 |                         Ok(Value::Null)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:360:17
[INFO] [stdout]     |
[INFO] [stdout] 359 |                 (a, b) => Ok(Value::String(a.to_string() + &b.to_string())),
[INFO] [stdout]     |                 ------ matches any value
[INFO] [stdout] 360 |                 _ => show_error(format!("Cannot add conflicting types"), &span),
[INFO] [stdout]     |                 ^ unreachable pattern
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/parser.rs:279:28
[INFO] [stdout]     |
[INFO] [stdout] 279 |         (Token::ObjectName(n), _) => match tokens.peek(1) {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/parser.rs:566:28
[INFO] [stdout]     |
[INFO] [stdout] 566 |         (Token::ObjectName(name), _) => match tokens.peek(1) {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func_var_map`
[INFO] [stdout]    --> src/interpreter.rs:267:53
[INFO] [stdout]     |
[INFO] [stdout] 267 |                 if let Value::Func(arg_names, code, func_var_map) = v.value.clone() {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_func_var_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `statements`
[INFO] [stdout]   --> src/interpreter.rs:22:30
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Self::Func(args, statements, var_map) => {
[INFO] [stdout]    |                              ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statements`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:271:9
[INFO] [stdout]     |
[INFO] [stdout] 271 |     let mut tokens = tokens;
[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/parser.rs:271:9
[INFO] [stdout]     |
[INFO] [stdout] 271 |     let mut tokens = tokens;
[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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stream`
[INFO] [stdout]    --> src/parser.rs:958:8
[INFO] [stdout]     |
[INFO] [stdout] 958 |     fn stream(contents: String) -> ParserStream<(Token, (std::ops::Range<usize>, String))> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.59s
[INFO] running `Command { std: "docker" "inspect" "89077203fa351178dcadfedb57ac1b78f8254166d4447cb6f1681c34031e004b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89077203fa351178dcadfedb57ac1b78f8254166d4447cb6f1681c34031e004b", kill_on_drop: false }`
[INFO] [stdout] 89077203fa351178dcadfedb57ac1b78f8254166d4447cb6f1681c34031e004b