[INFO] cloning repository https://github.com/mattjquinn/rustedjvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattjquinn/rustedjvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattjquinn%2Frustedjvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattjquinn%2Frustedjvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68b31b40d3c8666bc595b3e378d5f9f2a28603de
[INFO] checking mattjquinn/rustedjvm against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattjquinn%2Frustedjvm" "/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/mattjquinn/rustedjvm 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/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-9/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--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" "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] [stdout] 5cf27fcab6c7e3be8906bd97cf6ed7a6c42e4ae80e8eb62f411d6af449af56c7
[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" "5cf27fcab6c7e3be8906bd97cf6ed7a6c42e4ae80e8eb62f411d6af449af56c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cf27fcab6c7e3be8906bd97cf6ed7a6c42e4ae80e8eb62f411d6af449af56c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cf27fcab6c7e3be8906bd97cf6ed7a6c42e4ae80e8eb62f411d6af449af56c7", kill_on_drop: false }`
[INFO] [stdout] 5cf27fcab6c7e3be8906bd97cf6ed7a6c42e4ae80e8eb62f411d6af449af56c7
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 07b1575befa46b0cfead64b15376b9e658230597fe968af67469de4d33d1d700
[INFO] running `Command { std: "docker" "start" "-a" "07b1575befa46b0cfead64b15376b9e658230597fe968af67469de4d33d1d700", kill_on_drop: false }`
[INFO] [stderr]     Checking rusted_jvm v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/rustedjvm/classes.rs:29:37
[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 associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/rustedjvm/classes.rs:36:37
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     display, Error::description(&why)),
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/rustedjvm/classes.rs:29:37
[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 associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/rustedjvm/classes.rs:36:37
[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: 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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "07b1575befa46b0cfead64b15376b9e658230597fe968af67469de4d33d1d700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b1575befa46b0cfead64b15376b9e658230597fe968af67469de4d33d1d700", kill_on_drop: false }`
[INFO] [stdout] 07b1575befa46b0cfead64b15376b9e658230597fe968af67469de4d33d1d700