[INFO] cloning repository https://github.com/tuttlem/tiny_forth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tuttlem/tiny_forth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuttlem%2Ftiny_forth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuttlem%2Ftiny_forth'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuttlem%2Ftiny_forth/objects/info: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/tuttlem/tiny_forth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tuttlem/tiny_forth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuttlem%2Ftiny_forth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuttlem%2Ftiny_forth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 020ff3a35826f10a420aac2df4c09e098057f9ec
[INFO] checking tuttlem/tiny_forth against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuttlem%2Ftiny_forth" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tuttlem/tiny_forth
[INFO] finished tweaking git repo https://github.com/tuttlem/tiny_forth
[INFO] tweaked toml for git repo https://github.com/tuttlem/tiny_forth written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tuttlem/tiny_forth on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tuttlem/tiny_forth 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" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db727d120deef301abcf75fa0509cdfe733528fcd4920c752616c2f1a1fb6d0d
[INFO] running `Command { std: "docker" "start" "-a" "db727d120deef301abcf75fa0509cdfe733528fcd4920c752616c2f1a1fb6d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db727d120deef301abcf75fa0509cdfe733528fcd4920c752616c2f1a1fb6d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db727d120deef301abcf75fa0509cdfe733528fcd4920c752616c2f1a1fb6d0d", kill_on_drop: false }`
[INFO] [stdout] db727d120deef301abcf75fa0509cdfe733528fcd4920c752616c2f1a1fb6d0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee5f3ddc4ecaae0cac7bcdb4622ce1e74f55066b6359bbb20120d300979124cb
[INFO] running `Command { std: "docker" "start" "-a" "ee5f3ddc4ecaae0cac7bcdb4622ce1e74f55066b6359bbb20120d300979124cb", kill_on_drop: false }`
[INFO] [stderr]     Checking tiny_forth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `second`
[INFO] [stdout]    --> src/main.rs:111:25
[INFO] [stdout]     |
[INFO] [stdout] 111 |                     let second = self.stack[self.stack.len() - 2];
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | enum Instruction {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Rot,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     Nip,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 14 |     Tuck,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     TwoDup,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 16 |     TwoDrop,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 17 |     TwoSwap,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 18 |     Depth,
[INFO] [stdout] 19 |     Jump(isize),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 20 |     IfZero(isize),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 21 |     Call(usize),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` 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: method `add_word` is never used
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl VM {
[INFO] [stdout]    | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn add_word(&mut self, name: &str, address: usize) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second`
[INFO] [stdout]    --> src/main.rs:111:25
[INFO] [stdout]     |
[INFO] [stdout] 111 |                     let second = self.stack[self.stack.len() - 2];
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | enum Instruction {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Rot,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     Nip,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 14 |     Tuck,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     TwoDup,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 16 |     TwoDrop,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 17 |     TwoSwap,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 18 |     Depth,
[INFO] [stdout] 19 |     Jump(isize),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 20 |     IfZero(isize),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 21 |     Call(usize),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` 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: method `add_word` is never used
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl VM {
[INFO] [stdout]    | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn add_word(&mut self, name: &str, address: usize) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "ee5f3ddc4ecaae0cac7bcdb4622ce1e74f55066b6359bbb20120d300979124cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee5f3ddc4ecaae0cac7bcdb4622ce1e74f55066b6359bbb20120d300979124cb", kill_on_drop: false }`
[INFO] [stdout] ee5f3ddc4ecaae0cac7bcdb4622ce1e74f55066b6359bbb20120d300979124cb