[INFO] cloning repository https://github.com/tech6hutch/lang-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tech6hutch/lang-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftech6hutch%2Flang-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftech6hutch%2Flang-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b876793959149a653e4614da96686ca7ea121203
[INFO] checking tech6hutch/lang-compiler against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftech6hutch%2Flang-compiler" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tech6hutch/lang-compiler on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tech6hutch/lang-compiler
[INFO] finished tweaking git repo https://github.com/tech6hutch/lang-compiler
[INFO] tweaked toml for git repo https://github.com/tech6hutch/lang-compiler written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/tech6hutch/lang-compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bigdecimal v0.1.0
[INFO] [stderr]   Downloaded unicode_names2 v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11d1fca9082078a51cb65ea2485fdbdb4fd5ea4e76a64fdaa44828cf1b919db5
[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" "11d1fca9082078a51cb65ea2485fdbdb4fd5ea4e76a64fdaa44828cf1b919db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11d1fca9082078a51cb65ea2485fdbdb4fd5ea4e76a64fdaa44828cf1b919db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11d1fca9082078a51cb65ea2485fdbdb4fd5ea4e76a64fdaa44828cf1b919db5", kill_on_drop: false }`
[INFO] [stdout] 11d1fca9082078a51cb65ea2485fdbdb4fd5ea4e76a64fdaa44828cf1b919db5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 257b728c3ea7638622f78261f71fb53e0c301cbff59779d6ee3f2608761075ec
[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" "257b728c3ea7638622f78261f71fb53e0c301cbff59779d6ee3f2608761075ec", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking unicode_names2 v0.4.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking if_chain v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking bigdecimal v0.1.0
[INFO] [stderr]     Checking lang-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`, `self`
[INFO] [stdout]  --> src/parser.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fmt::{self, Display, Debug, Formatter},
[INFO] [stdout]   |           ^^^^  ^^^^^^^         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`, `self`
[INFO] [stdout]  --> src/parser.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fmt::{self, Display, Debug, Formatter},
[INFO] [stdout]   |           ^^^^  ^^^^^^^         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |                         _ => return Err(RuntimeError::OperandTypeError {
[INFO] [stdout]     |                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> src/errors.rs:95:40
[INFO] [stdout]    |
[INFO] [stdout] 95 |             &OperandTypeError { arity, ref operator, type_str } => {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^ help: try ignoring the field: `operator: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |                         _ => return Err(RuntimeError::OperandTypeError {
[INFO] [stdout]     |                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> src/errors.rs:95:40
[INFO] [stdout]    |
[INFO] [stdout] 95 |             &OperandTypeError { arity, ref operator, type_str } => {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^ help: try ignoring the field: `operator: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `if_some`
[INFO] [stdout]  --> src/util.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn if_some<T>(b: bool, t: T) -> Option<T> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `if_then`
[INFO] [stdout]  --> src/util.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn if_then<T, F: FnOnce() -> T>(b: bool, f: F) -> Option<T> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_col`
[INFO] [stdout]   --> src/text.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn next_col(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TempStr`
[INFO] [stdout]    --> src/lexer.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 215 |     TempStr(TemplateStringToken),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `synchronize`
[INFO] [stdout]    --> src/parser.rs:179:4
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn synchronize(iter: MyIterType!()) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `if_some`
[INFO] [stdout]  --> src/util.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn if_some<T>(b: bool, t: T) -> Option<T> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `if_then`
[INFO] [stdout]  --> src/util.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn if_then<T, F: FnOnce() -> T>(b: bool, f: F) -> Option<T> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_col`
[INFO] [stdout]   --> src/text.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn next_col(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TempStr`
[INFO] [stdout]    --> src/lexer.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 215 |     TempStr(TemplateStringToken),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `synchronize`
[INFO] [stdout]    --> src/parser.rs:179:4
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn synchronize(iter: MyIterType!()) {
[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 12.34s
[INFO] running `Command { std: "docker" "inspect" "257b728c3ea7638622f78261f71fb53e0c301cbff59779d6ee3f2608761075ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "257b728c3ea7638622f78261f71fb53e0c301cbff59779d6ee3f2608761075ec", kill_on_drop: false }`
[INFO] [stdout] 257b728c3ea7638622f78261f71fb53e0c301cbff59779d6ee3f2608761075ec