[INFO] cloning repository https://github.com/flippedAben/lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flippedAben/lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FflippedAben%2Flang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FflippedAben%2Flang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c1e2eeeaacbce91b8001d8f5de9dfbb36eeb5a4
[INFO] checking flippedAben/lang against master#40daf23eeb711dadf140b2536e67e3ff4c999196 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FflippedAben%2Flang" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flippedAben/lang on toolchain 40daf23eeb711dadf140b2536e67e3ff4c999196
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/flippedAben/lang
[INFO] finished tweaking git repo https://github.com/flippedAben/lang
[INFO] tweaked toml for git repo https://github.com/flippedAben/lang written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/flippedAben/lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 848d9bf89400ac6ccd78e601313fdbaa0e7769c5a33b92c2d4edca6c232b9187
[INFO] running `Command { std: "docker" "start" "-a" "848d9bf89400ac6ccd78e601313fdbaa0e7769c5a33b92c2d4edca6c232b9187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "848d9bf89400ac6ccd78e601313fdbaa0e7769c5a33b92c2d4edca6c232b9187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "848d9bf89400ac6ccd78e601313fdbaa0e7769c5a33b92c2d4edca6c232b9187", kill_on_drop: false }`
[INFO] [stdout] 848d9bf89400ac6ccd78e601313fdbaa0e7769c5a33b92c2d4edca6c232b9187
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37afabac0e2fb25387594917020b1223dff3a414d7fc6f741035c78a045fbd1e
[INFO] running `Command { std: "docker" "start" "-a" "37afabac0e2fb25387594917020b1223dff3a414d7fc6f741035c78a045fbd1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]     Checking bytes v1.7.1
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]     Checking lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `class`
[INFO] [stdout]    --> src/interpreter.rs:475:33
[INFO] [stdout]     |
[INFO] [stdout] 475 |                 Value::Instance(class, methods, fields) => match fields.borrow().get(name) {
[INFO] [stdout]     |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_class`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `class_name`
[INFO] [stdout]    --> src/interpreter.rs:510:33
[INFO] [stdout]     |
[INFO] [stdout] 510 |                 Value::Instance(class_name, methods, fields) => {
[INFO] [stdout]     |                                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_class_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `methods`
[INFO] [stdout]    --> src/interpreter.rs:510:45
[INFO] [stdout]     |
[INFO] [stdout] 510 |                 Value::Instance(class_name, methods, fields) => {
[INFO] [stdout]     |                                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_methods`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `class`
[INFO] [stdout]    --> src/interpreter.rs:475:33
[INFO] [stdout]     |
[INFO] [stdout] 475 |                 Value::Instance(class, methods, fields) => match fields.borrow().get(name) {
[INFO] [stdout]     |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_class`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `class_name`
[INFO] [stdout]    --> src/interpreter.rs:510:33
[INFO] [stdout]     |
[INFO] [stdout] 510 |                 Value::Instance(class_name, methods, fields) => {
[INFO] [stdout]     |                                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_class_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `methods`
[INFO] [stdout]    --> src/interpreter.rs:510:45
[INFO] [stdout]     |
[INFO] [stdout] 510 |                 Value::Instance(class_name, methods, fields) => {
[INFO] [stdout]     |                                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_methods`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.94s
[INFO] running `Command { std: "docker" "inspect" "37afabac0e2fb25387594917020b1223dff3a414d7fc6f741035c78a045fbd1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37afabac0e2fb25387594917020b1223dff3a414d7fc6f741035c78a045fbd1e", kill_on_drop: false }`
[INFO] [stdout] 37afabac0e2fb25387594917020b1223dff3a414d7fc6f741035c78a045fbd1e