[INFO] cloning repository https://github.com/qferbs/brain-lambda
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qferbs/brain-lambda" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqferbs%2Fbrain-lambda", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqferbs%2Fbrain-lambda'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf0cd07268e323299096a5b77a15653348836342
[INFO] checking qferbs/brain-lambda against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqferbs%2Fbrain-lambda" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qferbs/brain-lambda on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qferbs/brain-lambda
[INFO] finished tweaking git repo https://github.com/qferbs/brain-lambda
[INFO] tweaked toml for git repo https://github.com/qferbs/brain-lambda written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/qferbs/brain-lambda already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92c11bb21a2b55f6a97386b7a8d30dd917428a53bc99a32ae42133caa25a819e
[INFO] running `Command { std: "docker" "start" "-a" "92c11bb21a2b55f6a97386b7a8d30dd917428a53bc99a32ae42133caa25a819e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92c11bb21a2b55f6a97386b7a8d30dd917428a53bc99a32ae42133caa25a819e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92c11bb21a2b55f6a97386b7a8d30dd917428a53bc99a32ae42133caa25a819e", kill_on_drop: false }`
[INFO] [stdout] 92c11bb21a2b55f6a97386b7a8d30dd917428a53bc99a32ae42133caa25a819e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e8c5416487e7a621ec62acc967fb2356c9b7721d8b002b95e431ee8da1acb57
[INFO] running `Command { std: "docker" "start" "-a" "9e8c5416487e7a621ec62acc967fb2356c9b7721d8b002b95e431ee8da1acb57", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking brainfuck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]  --> src/compile.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn compile(expr: Expression<u32>) -> Result<(), CompilationError> {
[INFO] [stdout]   |            ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_bf`
[INFO] [stdout]  --> src/brainfuck_ops.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn to_bf(&self, cur_reg: &mut Register) -> String {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `zero`
[INFO] [stdout]   --> src/brainfuck_ops.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn zero(&self, cur_reg: &mut Register) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bf_equals`
[INFO] [stdout]   --> src/brainfuck_ops.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn bf_equals(
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bf_not_equals`
[INFO] [stdout]   --> src/brainfuck_ops.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn bf_not_equals(
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bf_equality`
[INFO] [stdout]   --> src/brainfuck_ops.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn bf_equality(
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bf_equals_const`
[INFO] [stdout]    --> src/brainfuck_ops.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn bf_equals_const(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bf_not_equals_const`
[INFO] [stdout]    --> src/brainfuck_ops.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn bf_not_equals_const(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bf_equality_const`
[INFO] [stdout]    --> src/brainfuck_ops.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn bf_equality_const(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bf_expand_const`
[INFO] [stdout]    --> src/brainfuck_ops.rs:189:8
[INFO] [stdout]     |
[INFO] [stdout] 189 | pub fn bf_expand_const(c: i32) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile`
[INFO] [stdout]  --> src/compile.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn compile(expr: Expression<u32>) -> Result<(), CompilationError> {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]  --> src/compile.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn compile(expr: Expression<u32>) -> Result<(), CompilationError> {
[INFO] [stdout]   |            ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FILE_PATH`
[INFO] [stdout]  --> src/utils/compile_debug.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const FILE_PATH: &str = "./brainfuck-compiler/bf-gen-exp.b";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BRAINFUCK_CHARS`
[INFO] [stdout]   --> src/utils/compile_debug.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const BRAINFUCK_CHARS: [char; 9] = ['>', '<', '+', '-', '[', ']', '.', ',', '!'];
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SPECIAL_CHARS`
[INFO] [stdout]   --> src/utils/compile_debug.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const SPECIAL_CHARS: [char; 10] = ['>', '<', '+', '-', '[', ']', '.', ',', '!', 'r'];
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile_and_run_augmented_brainfuck`
[INFO] [stdout]   --> src/utils/compile_debug.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn compile_and_run_augmented_brainfuck(program: String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `push_str_track`
[INFO] [stdout]   --> src/utils/compile_debug.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn push_str_track(string: &mut String, cur_reg: &mut i32, new_str: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_debug_annotation`
[INFO] [stdout]   --> src/utils/compile_debug.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn parse_debug_annotation(lit: &str, cur_reg: &mut i32) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile`
[INFO] [stdout]  --> src/compile.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn compile(expr: Expression<u32>) -> Result<(), CompilationError> {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FILE_PATH`
[INFO] [stdout]  --> src/utils/compile_debug.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const FILE_PATH: &str = "./brainfuck-compiler/bf-gen-exp.b";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BRAINFUCK_CHARS`
[INFO] [stdout]   --> src/utils/compile_debug.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const BRAINFUCK_CHARS: [char; 9] = ['>', '<', '+', '-', '[', ']', '.', ',', '!'];
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SPECIAL_CHARS`
[INFO] [stdout]   --> src/utils/compile_debug.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const SPECIAL_CHARS: [char; 10] = ['>', '<', '+', '-', '[', ']', '.', ',', '!', 'r'];
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile_and_run_augmented_brainfuck`
[INFO] [stdout]   --> src/utils/compile_debug.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn compile_and_run_augmented_brainfuck(program: String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `push_str_track`
[INFO] [stdout]   --> src/utils/compile_debug.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn push_str_track(string: &mut String, cur_reg: &mut i32, new_str: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_debug_annotation`
[INFO] [stdout]   --> src/utils/compile_debug.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn parse_debug_annotation(lit: &str, cur_reg: &mut i32) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.49s
[INFO] running `Command { std: "docker" "inspect" "9e8c5416487e7a621ec62acc967fb2356c9b7721d8b002b95e431ee8da1acb57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e8c5416487e7a621ec62acc967fb2356c9b7721d8b002b95e431ee8da1acb57", kill_on_drop: false }`
[INFO] [stdout] 9e8c5416487e7a621ec62acc967fb2356c9b7721d8b002b95e431ee8da1acb57