[INFO] cloning repository https://github.com/jochasinga/tinyvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jochasinga/tinyvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjochasinga%2Ftinyvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjochasinga%2Ftinyvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7161aa1e6e4342a4ad927a71ef639dde3bdf31c8
[INFO] testing jochasinga/tinyvm against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjochasinga%2Ftinyvm" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jochasinga/tinyvm
[INFO] finished tweaking git repo https://github.com/jochasinga/tinyvm
[INFO] tweaked toml for git repo https://github.com/jochasinga/tinyvm written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jochasinga/tinyvm on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jochasinga/tinyvm 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fbd9493381c5fc36e5c442151b9e55b7c5e0625e81f99f5869bd9019cb71f38
[INFO] running `Command { std: "docker" "start" "-a" "0fbd9493381c5fc36e5c442151b9e55b7c5e0625e81f99f5869bd9019cb71f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fbd9493381c5fc36e5c442151b9e55b7c5e0625e81f99f5869bd9019cb71f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fbd9493381c5fc36e5c442151b9e55b7c5e0625e81f99f5869bd9019cb71f38", kill_on_drop: false }`
[INFO] [stdout] 0fbd9493381c5fc36e5c442151b9e55b7c5e0625e81f99f5869bd9019cb71f38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c638a8dc6ae543da09279c70329e7795f19d5b68ab10745ad9bcc262817bc2ac
[INFO] running `Command { std: "docker" "start" "-a" "c638a8dc6ae543da09279c70329e7795f19d5b68ab10745ad9bcc262817bc2ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinyvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `instr_num` is never read
[INFO] [stdout]   --> src/main.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut instr_num = 0;
[INFO] [stdout]    |                         ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 28 |     instr_num = ((instr & 0xF000) >> 12).try_into().unwrap();
[INFO] [stdout]    |     -------------------------------------------------------- `instr_num` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reg1` is never read
[INFO] [stdout]   --> src/main.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut reg1 = 0;
[INFO] [stdout]    |                    ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 29 |     reg1 = ((instr & 0xF00) >> 8).try_into().unwrap();
[INFO] [stdout]    |     ------------------------------------------------- `reg1` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reg2` is never read
[INFO] [stdout]   --> src/main.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut reg2 = 0;
[INFO] [stdout]    |                    ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 30 |     reg2 = ((instr & 0xF0) >> 4).try_into().unwrap();
[INFO] [stdout]    |     ------------------------------------------------ `reg2` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reg3` is never read
[INFO] [stdout]   --> src/main.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut reg3 = 0;
[INFO] [stdout]    |                    ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 31 |     reg3 = (instr & 0xF).try_into().unwrap();
[INFO] [stdout]    |     ---------------------------------------- `reg3` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `imm` is never read
[INFO] [stdout]   --> src/main.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut imm = 0;
[INFO] [stdout]    |                   ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 32 |     imm = (instr & 0xFF).try_into().unwrap();
[INFO] [stdout]    |     ---------------------------------------- `imm` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "c638a8dc6ae543da09279c70329e7795f19d5b68ab10745ad9bcc262817bc2ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c638a8dc6ae543da09279c70329e7795f19d5b68ab10745ad9bcc262817bc2ac", kill_on_drop: false }`
[INFO] [stdout] c638a8dc6ae543da09279c70329e7795f19d5b68ab10745ad9bcc262817bc2ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b651d5b4bacc32ef4703fa70b733d5212303baac49b36763f9970cc7ced67e5
[INFO] running `Command { std: "docker" "start" "-a" "2b651d5b4bacc32ef4703fa70b733d5212303baac49b36763f9970cc7ced67e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinyvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `instr_num` is never read
[INFO] [stdout]   --> src/main.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut instr_num = 0;
[INFO] [stdout]    |                         ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 28 |     instr_num = ((instr & 0xF000) >> 12).try_into().unwrap();
[INFO] [stdout]    |     -------------------------------------------------------- `instr_num` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reg1` is never read
[INFO] [stdout]   --> src/main.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut reg1 = 0;
[INFO] [stdout]    |                    ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 29 |     reg1 = ((instr & 0xF00) >> 8).try_into().unwrap();
[INFO] [stdout]    |     ------------------------------------------------- `reg1` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reg2` is never read
[INFO] [stdout]   --> src/main.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut reg2 = 0;
[INFO] [stdout]    |                    ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 30 |     reg2 = ((instr & 0xF0) >> 4).try_into().unwrap();
[INFO] [stdout]    |     ------------------------------------------------ `reg2` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reg3` is never read
[INFO] [stdout]   --> src/main.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut reg3 = 0;
[INFO] [stdout]    |                    ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 31 |     reg3 = (instr & 0xF).try_into().unwrap();
[INFO] [stdout]    |     ---------------------------------------- `reg3` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `imm` is never read
[INFO] [stdout]   --> src/main.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut imm = 0;
[INFO] [stdout]    |                   ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 32 |     imm = (instr & 0xFF).try_into().unwrap();
[INFO] [stdout]    |     ---------------------------------------- `imm` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "2b651d5b4bacc32ef4703fa70b733d5212303baac49b36763f9970cc7ced67e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b651d5b4bacc32ef4703fa70b733d5212303baac49b36763f9970cc7ced67e5", kill_on_drop: false }`
[INFO] [stdout] 2b651d5b4bacc32ef4703fa70b733d5212303baac49b36763f9970cc7ced67e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 451c1b521965a06641443e8e06f04d1559a328e6578a7771f4a61a90b6afde51
[INFO] running `Command { std: "docker" "start" "-a" "451c1b521965a06641443e8e06f04d1559a328e6578a7771f4a61a90b6afde51", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `instr_num` is never read
[INFO] [stderr]   --> src/main.rs:10:25
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut instr_num = 0;
[INFO] [stderr]    |                         ^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 28 |     instr_num = ((instr & 0xF000) >> 12).try_into().unwrap();
[INFO] [stderr]    |     -------------------------------------------------------- `instr_num` is overwritten here before the previous value is read
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg1` is never read
[INFO] [stderr]   --> src/main.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut reg1 = 0;
[INFO] [stderr]    |                    ^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 29 |     reg1 = ((instr & 0xF00) >> 8).try_into().unwrap();
[INFO] [stderr]    |     ------------------------------------------------- `reg1` is overwritten here before the previous value is read
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg2` is never read
[INFO] [stderr]   --> src/main.rs:13:20
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut reg2 = 0;
[INFO] [stderr]    |                    ^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 30 |     reg2 = ((instr & 0xF0) >> 4).try_into().unwrap();
[INFO] [stderr]    |     ------------------------------------------------ `reg2` is overwritten here before the previous value is read
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg3` is never read
[INFO] [stderr]   --> src/main.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut reg3 = 0;
[INFO] [stderr]    |                    ^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 31 |     reg3 = (instr & 0xF).try_into().unwrap();
[INFO] [stderr]    |     ---------------------------------------- `reg3` is overwritten here before the previous value is read
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `imm` is never read
[INFO] [stderr]   --> src/main.rs:15:19
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut imm = 0;
[INFO] [stderr]    |                   ^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 32 |     imm = (instr & 0xFF).try_into().unwrap();
[INFO] [stderr]    |     ---------------------------------------- `imm` is overwritten here before the previous value is read
[INFO] [stderr] 
[INFO] [stderr] warning: `tinyvm` (bin "tinyvm" test) generated 5 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tinyvm-68b58e98254c06e5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "451c1b521965a06641443e8e06f04d1559a328e6578a7771f4a61a90b6afde51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "451c1b521965a06641443e8e06f04d1559a328e6578a7771f4a61a90b6afde51", kill_on_drop: false }`
[INFO] [stdout] 451c1b521965a06641443e8e06f04d1559a328e6578a7771f4a61a90b6afde51
