[INFO] cloning repository https://github.com/rileylyman/riscv-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rileylyman/riscv-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frileylyman%2Friscv-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frileylyman%2Friscv-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0c600e2b65322873903154e653d99ebae7f0e91
[INFO] checking rileylyman/riscv-in-rust against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frileylyman%2Friscv-in-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rileylyman/riscv-in-rust on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rileylyman/riscv-in-rust
[INFO] finished tweaking git repo https://github.com/rileylyman/riscv-in-rust
[INFO] tweaked toml for git repo https://github.com/rileylyman/riscv-in-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/rileylyman/riscv-in-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argparse v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3f7654b776c69c8eb5e5a361b5b3a82b850af3d441ff9baeec342f16e6f40889
[INFO] running `Command { std: "docker" "start" "-a" "3f7654b776c69c8eb5e5a361b5b3a82b850af3d441ff9baeec342f16e6f40889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f7654b776c69c8eb5e5a361b5b3a82b850af3d441ff9baeec342f16e6f40889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f7654b776c69c8eb5e5a361b5b3a82b850af3d441ff9baeec342f16e6f40889", kill_on_drop: false }`
[INFO] [stdout] 3f7654b776c69c8eb5e5a361b5b3a82b850af3d441ff9baeec342f16e6f40889
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1baec4bb39f1d85ef1e547470db595307582caa433ca9ce4331fe70e0ff6c29c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1baec4bb39f1d85ef1e547470db595307582caa433ca9ce4331fe70e0ff6c29c", kill_on_drop: false }`
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking riscv-emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/implementer/rtype.rs:142:63
[INFO] [stdout]     |
[INFO] [stdout] 142 |             return Err(ExecutionError::Extension("M".into()));;
[INFO] [stdout]     |                                                               ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/implementer/rtype.rs:142:63
[INFO] [stdout]     |
[INFO] [stdout] 142 |             return Err(ExecutionError::Extension("M".into()));;
[INFO] [stdout]     |                                                               ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `machine_code`
[INFO] [stdout]   --> src/assembler/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let machine_code = assemble(&base_instructions);
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_machine_code`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mem`
[INFO] [stdout]  --> src/assembler/mod.rs:7:42
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () {
[INFO] [stdout]   |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `imem`
[INFO] [stdout]  --> src/assembler/mod.rs:7:58
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () {
[INFO] [stdout]   |                                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_imem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instructions`
[INFO] [stdout]   --> src/assembler/mod.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn assemble(instructions: &Vec<String>) {
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instructions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `machine_code`
[INFO] [stdout]   --> src/assembler/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let machine_code = assemble(&base_instructions);
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_machine_code`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mem`
[INFO] [stdout]  --> src/assembler/mod.rs:7:42
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () {
[INFO] [stdout]   |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `imem`
[INFO] [stdout]  --> src/assembler/mod.rs:7:58
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () {
[INFO] [stdout]   |                                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_imem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instructions`
[INFO] [stdout]   --> src/assembler/mod.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn assemble(instructions: &Vec<String>) {
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instructions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INST_WIDTH`
[INFO] [stdout]  --> src/assembler/mod.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const INST_WIDTH: usize = 32;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INST_WIDTH`
[INFO] [stdout]  --> src/assembler/mod.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const INST_WIDTH: usize = 32;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "1baec4bb39f1d85ef1e547470db595307582caa433ca9ce4331fe70e0ff6c29c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1baec4bb39f1d85ef1e547470db595307582caa433ca9ce4331fe70e0ff6c29c", kill_on_drop: false }`
[INFO] [stdout] 1baec4bb39f1d85ef1e547470db595307582caa433ca9ce4331fe70e0ff6c29c