[INFO] cloning repository https://github.com/beoboo/monkey-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/beoboo/monkey-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeoboo%2Fmonkey-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeoboo%2Fmonkey-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ebdde1792827dcfb582f307ff0ec61e9ae0eb7dd
[INFO] checking beoboo/monkey-rust against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeoboo%2Fmonkey-rust" "/workspace/builds/worker-88/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-88/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/beoboo/monkey-rust on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/beoboo/monkey-rust
[INFO] finished tweaking git repo https://github.com/beoboo/monkey-rust
[INFO] tweaked toml for git repo https://github.com/beoboo/monkey-rust written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] crate git repo https://github.com/beoboo/monkey-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linkme v0.2.7
[INFO] [stderr]   Downloaded linkme-impl v0.2.7
[INFO] [stderr]   Downloaded intertrait v0.2.2
[INFO] [stderr]   Downloaded intertrait-macros v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4a12afabdc7eb868d06f59b17575af1526352cc9f025411c32b2dcf5d0c3b3d
[INFO] running `Command { std: "docker" "start" "-a" "a4a12afabdc7eb868d06f59b17575af1526352cc9f025411c32b2dcf5d0c3b3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4a12afabdc7eb868d06f59b17575af1526352cc9f025411c32b2dcf5d0c3b3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4a12afabdc7eb868d06f59b17575af1526352cc9f025411c32b2dcf5d0c3b3d", kill_on_drop: false }`
[INFO] [stdout] a4a12afabdc7eb868d06f59b17575af1526352cc9f025411c32b2dcf5d0c3b3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c5f64bf2b0473da2b231fb3c58e3ffde8bf2e9a2d5d11158abf1e1792202870
[INFO] running `Command { std: "docker" "start" "-a" "7c5f64bf2b0473da2b231fb3c58e3ffde8bf2e9a2d5d11158abf1e1792202870", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling linkme-impl v0.2.7
[INFO] [stderr]    Compiling intertrait-macros v0.2.2
[INFO] [stderr]     Checking linkme v0.2.7
[INFO] [stderr]     Checking intertrait v0.2.2
[INFO] [stderr]     Checking monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Disassembler`
[INFO] [stdout]  --> src/disassembler.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Disassembler {
[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: `new`
[INFO] [stdout]  --> src/disassembler.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(op_codes: OpCodes) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `disassemble`
[INFO] [stdout]   --> src/disassembler.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn disassemble(&self, instructions: Instructions) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `format_instruction`
[INFO] [stdout]   --> src/disassembler.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn format_instruction(&self, definition: &Definition, operands: Vec<u32>) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lookup`
[INFO] [stdout]   --> src/disassembler.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn lookup(&self, op_code: &Byte) -> Option<&Definition> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_operands`
[INFO] [stdout]   --> src/disassembler.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn read_operands(&self, definition: &Definition, instructions: &[Byte]) -> (Vec<u32>, usize) {
[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 12.05s
[INFO] running `Command { std: "docker" "inspect" "7c5f64bf2b0473da2b231fb3c58e3ffde8bf2e9a2d5d11158abf1e1792202870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5f64bf2b0473da2b231fb3c58e3ffde8bf2e9a2d5d11158abf1e1792202870", kill_on_drop: false }`
[INFO] [stdout] 7c5f64bf2b0473da2b231fb3c58e3ffde8bf2e9a2d5d11158abf1e1792202870