[INFO] cloning repository https://github.com/nipzu/bf-compiler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nipzu/bf-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnipzu%2Fbf-compiler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnipzu%2Fbf-compiler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f441b291ddb44b350b03ff4577f221ca714e6e37 [INFO] checking nipzu/bf-compiler against master#9f48dedc9763334a587c66558974635807a113ed for pr-137394 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnipzu%2Fbf-compiler" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nipzu/bf-compiler on toolchain 9f48dedc9763334a587c66558974635807a113ed [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nipzu/bf-compiler [INFO] finished tweaking git repo https://github.com/nipzu/bf-compiler [INFO] tweaked toml for git repo https://github.com/nipzu/bf-compiler written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/nipzu/bf-compiler 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" "+9f48dedc9763334a587c66558974635807a113ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded argh_shared v0.1.6 [INFO] [stderr] Downloaded argh v0.1.6 [INFO] [stderr] Downloaded argh_derive v0.1.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5b1f5da228d81bcb4101faae8756a12d6edcbc6f9b504fd25c2059c790c06502 [INFO] running `Command { std: "docker" "start" "-a" "5b1f5da228d81bcb4101faae8756a12d6edcbc6f9b504fd25c2059c790c06502", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5b1f5da228d81bcb4101faae8756a12d6edcbc6f9b504fd25c2059c790c06502", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b1f5da228d81bcb4101faae8756a12d6edcbc6f9b504fd25c2059c790c06502", kill_on_drop: false }` [INFO] [stdout] 5b1f5da228d81bcb4101faae8756a12d6edcbc6f9b504fd25c2059c790c06502 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 600104b7ca36bba45b41b364923a2128da299fd75d29e5d851b01260b3a909b0 [INFO] running `Command { std: "docker" "start" "-a" "600104b7ca36bba45b41b364923a2128da299fd75d29e5d851b01260b3a909b0", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling argh_shared v0.1.6 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling argh_derive v0.1.6 [INFO] [stderr] Checking argh v0.1.6 [INFO] [stderr] Checking bf-compiler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `output` is never read [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Args { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | output: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:34:11 [INFO] [stdout] | [INFO] [stdout] 34 | Basic(Vec), [INFO] [stdout] | ----- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `BFBlock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 34 - Basic(Vec), [INFO] [stdout] 34 + Basic(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:35:10 [INFO] [stdout] | [INFO] [stdout] 35 | Loop(Vec), [INFO] [stdout] | ---- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `BFBlock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 35 - Loop(Vec), [INFO] [stdout] 35 + Loop(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `BasicBlock` is never constructed [INFO] [stdout] --> src/block.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct BasicBlock { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Instruction` is never used [INFO] [stdout] --> src/block.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | enum Instruction { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `CellState` is never used [INFO] [stdout] --> src/block.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | enum CellState { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `inc` and `dec` are never used [INFO] [stdout] --> src/block.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 26 | impl CellState { [INFO] [stdout] | -------------- methods in this implementation [INFO] [stdout] 27 | fn inc(&mut self) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | fn dec(&mut self) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/block.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl BasicBlock { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 42 | fn new(v: &[BFToken]) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `output` is never read [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Args { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | output: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:34:11 [INFO] [stdout] | [INFO] [stdout] 34 | Basic(Vec), [INFO] [stdout] | ----- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `BFBlock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 34 - Basic(Vec), [INFO] [stdout] 34 + Basic(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:35:10 [INFO] [stdout] | [INFO] [stdout] 35 | Loop(Vec), [INFO] [stdout] | ---- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `BFBlock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 35 - Loop(Vec), [INFO] [stdout] 35 + Loop(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `BasicBlock` is never constructed [INFO] [stdout] --> src/block.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct BasicBlock { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Instruction` is never used [INFO] [stdout] --> src/block.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | enum Instruction { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `CellState` is never used [INFO] [stdout] --> src/block.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | enum CellState { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `inc` and `dec` are never used [INFO] [stdout] --> src/block.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 26 | impl CellState { [INFO] [stdout] | -------------- methods in this implementation [INFO] [stdout] 27 | fn inc(&mut self) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | fn dec(&mut self) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/block.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl BasicBlock { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 42 | fn new(v: &[BFToken]) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.89s [INFO] running `Command { std: "docker" "inspect" "600104b7ca36bba45b41b364923a2128da299fd75d29e5d851b01260b3a909b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "600104b7ca36bba45b41b364923a2128da299fd75d29e5d851b01260b3a909b0", kill_on_drop: false }` [INFO] [stdout] 600104b7ca36bba45b41b364923a2128da299fd75d29e5d851b01260b3a909b0