[INFO] updating cached repository https://github.com/TheApeMachine/RustVM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea148c11e07d8ad7fbca7adb742c82f846df8264
[INFO] testing TheApeMachine/RustVM against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheApeMachine%2FRustVM" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TheApeMachine/RustVM on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TheApeMachine/RustVM
[INFO] finished tweaking git repo https://github.com/TheApeMachine/RustVM
[INFO] tweaked toml for git repo https://github.com/TheApeMachine/RustVM written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/TheApeMachine/RustVM already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c9dddc7904fded23e4319d17be59b448af2eeed43d4f6b52025e11dac5b739f
[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" "8c9dddc7904fded23e4319d17be59b448af2eeed43d4f6b52025e11dac5b739f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c9dddc7904fded23e4319d17be59b448af2eeed43d4f6b52025e11dac5b739f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c9dddc7904fded23e4319d17be59b448af2eeed43d4f6b52025e11dac5b739f", kill_on_drop: false }`
[INFO] [stdout] 8c9dddc7904fded23e4319d17be59b448af2eeed43d4f6b52025e11dac5b739f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2be742d07a4a8021d2d86437063aa4311359a103c679419f41ad5099e56dd83
[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" "c2be742d07a4a8021d2d86437063aa4311359a103c679419f41ad5099e56dd83", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found keyword `return`
[INFO] [stdout]   --> src/vm.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     self.pc += 2
[INFO] [stdout]    |                 - expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 59 |     return result;
[INFO] [stdout]    |     ^^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `instruction`
[INFO] [stdout]  --> src/vm.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use instruction::{Opcode};
[INFO] [stdout]   |     ^^^^^^^^^^^ help: a similar path exists: `crate::instruction`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustvm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c2be742d07a4a8021d2d86437063aa4311359a103c679419f41ad5099e56dd83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2be742d07a4a8021d2d86437063aa4311359a103c679419f41ad5099e56dd83", kill_on_drop: false }`
[INFO] [stdout] c2be742d07a4a8021d2d86437063aa4311359a103c679419f41ad5099e56dd83