[INFO] updating cached repository https://github.com/mattjquinn/rustedjvm
[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] 68b31b40d3c8666bc595b3e378d5f9f2a28603de
[INFO] checking mattjquinn/rustedjvm against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattjquinn%2Frustedjvm" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattjquinn/rustedjvm on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattjquinn/rustedjvm
[INFO] finished tweaking git repo https://github.com/mattjquinn/rustedjvm
[INFO] tweaked toml for git repo https://github.com/mattjquinn/rustedjvm written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/mattjquinn/rustedjvm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1bf022b31da90758a24a1dab780bbebb08c58141bff0bf4076724355dc54e47a
[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" "1bf022b31da90758a24a1dab780bbebb08c58141bff0bf4076724355dc54e47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bf022b31da90758a24a1dab780bbebb08c58141bff0bf4076724355dc54e47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bf022b31da90758a24a1dab780bbebb08c58141bff0bf4076724355dc54e47a", kill_on_drop: false }`
[INFO] [stdout] 1bf022b31da90758a24a1dab780bbebb08c58141bff0bf4076724355dc54e47a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a387b9cca829dd220d0a7c43ae8fb1088225128328247b915814281a401b1f1
[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" "6a387b9cca829dd220d0a7c43ae8fb1088225128328247b915814281a401b1f1", kill_on_drop: false }`
[INFO] [stderr]     Checking rusted_jvm v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/rustedjvm/classes.rs:29:30
[INFO] [stdout]    |
[INFO] [stdout] 29 |                     display, Error::description(&why)),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/rustedjvm/classes.rs:36:30
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     display, Error::description(&why)),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/rustedjvm/classes.rs:29:30
[INFO] [stdout]    |
[INFO] [stdout] 29 |                     display, Error::description(&why)),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/rustedjvm/classes.rs:36:30
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     display, Error::description(&why)),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operand`
[INFO] [stdout]    --> src/rustedjvm/interpreter.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let operand: Operand = match operand_stack.pop() {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operand`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_var_arr`
[INFO] [stdout]    --> src/rustedjvm/interpreter.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn istore_1(local_var_arr: &Vec<Operand>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_var_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operand_stack`
[INFO] [stdout]    --> src/rustedjvm/interpreter.rs:194:35
[INFO] [stdout]     |
[INFO] [stdout] 194 | fn getstatic(object_ref: &Object, operand_stack: &mut Vec<Operand>,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operand_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operand`
[INFO] [stdout]    --> src/rustedjvm/interpreter.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let operand: Operand = match operand_stack.pop() {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operand`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_var_arr`
[INFO] [stdout]    --> src/rustedjvm/interpreter.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn istore_1(local_var_arr: &Vec<Operand>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_var_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operand_stack`
[INFO] [stdout]    --> src/rustedjvm/interpreter.rs:194:35
[INFO] [stdout]     |
[INFO] [stdout] 194 | fn getstatic(object_ref: &Object, operand_stack: &mut Vec<Operand>,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operand_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/rustedjvm/exceptions.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         *byte_idx + *byte_idx + 2;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/rustedjvm/exceptions.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         *byte_idx + *byte_idx + 2;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "6a387b9cca829dd220d0a7c43ae8fb1088225128328247b915814281a401b1f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a387b9cca829dd220d0a7c43ae8fb1088225128328247b915814281a401b1f1", kill_on_drop: false }`
[INFO] [stdout] 6a387b9cca829dd220d0a7c43ae8fb1088225128328247b915814281a401b1f1