[INFO] cloning repository https://github.com/it1shka/language
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/it1shka/language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fit1shka%2Flanguage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fit1shka%2Flanguage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34bade7d9c3f51c543b14494c5e09237863a8db6
[INFO] checking it1shka/language against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fit1shka%2Flanguage" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/it1shka/language on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/it1shka/language
[INFO] finished tweaking git repo https://github.com/it1shka/language
[INFO] tweaked toml for git repo https://github.com/it1shka/language written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/it1shka/language already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a33c960d4c26091e703526778ab377fafa8c59133bfffac26c09416ab7473e9
[INFO] running `Command { std: "docker" "start" "-a" "5a33c960d4c26091e703526778ab377fafa8c59133bfffac26c09416ab7473e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a33c960d4c26091e703526778ab377fafa8c59133bfffac26c09416ab7473e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a33c960d4c26091e703526778ab377fafa8c59133bfffac26c09416ab7473e9", kill_on_drop: false }`
[INFO] [stdout] 5a33c960d4c26091e703526778ab377fafa8c59133bfffac26c09416ab7473e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 705f19c7408cac78990ef4305bd0173d66d72a447dd9afde60cc78de9c4eaa1a
[INFO] running `Command { std: "docker" "start" "-a" "705f19c7408cac78990ef4305bd0173d66d72a447dd9afde60cc78de9c4eaa1a", kill_on_drop: false }`
[INFO] [stderr]     Checking language v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/launcher/from_file.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/launcher/from_file.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Mem` in public interface (error E0446)
[INFO] [stdout]   --> src/runner/storage.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn scope(&mut self) -> &mut Mem {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ident`
[INFO] [stdout]   --> src/lexer/token.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn is_ident(&self) -> bool {
[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: `is_int`
[INFO] [stdout]   --> src/lexer/token.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn is_int(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_float`
[INFO] [stdout]   --> src/lexer/token.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn is_float(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_str`
[INFO] [stdout]   --> src/lexer/token.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn is_str(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Mem` in public interface (error E0446)
[INFO] [stdout]   --> src/runner/storage.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn scope(&mut self) -> &mut Mem {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ident`
[INFO] [stdout]   --> src/lexer/token.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn is_ident(&self) -> bool {
[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: `is_int`
[INFO] [stdout]   --> src/lexer/token.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn is_int(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_float`
[INFO] [stdout]   --> src/lexer/token.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn is_float(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_str`
[INFO] [stdout]   --> src/lexer/token.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn is_str(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "705f19c7408cac78990ef4305bd0173d66d72a447dd9afde60cc78de9c4eaa1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "705f19c7408cac78990ef4305bd0173d66d72a447dd9afde60cc78de9c4eaa1a", kill_on_drop: false }`
[INFO] [stdout] 705f19c7408cac78990ef4305bd0173d66d72a447dd9afde60cc78de9c4eaa1a