[INFO] cloning repository https://github.com/mkhan45/VrooM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mkhan45/VrooM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkhan45%2FVrooM", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkhan45%2FVrooM'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a804604d278042b92d2b9d13880b92096732fd80
[INFO] testing mkhan45/VrooM against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkhan45%2FVrooM" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mkhan45/VrooM on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mkhan45/VrooM
[INFO] finished tweaking git repo https://github.com/mkhan45/VrooM
[INFO] tweaked toml for git repo https://github.com/mkhan45/VrooM written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/mkhan45/VrooM already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 53ece519283def20e19ef986341a97ea54d6146e6d9f936ae574c1ca5af68a63
[INFO] running `Command { std: "docker" "start" "-a" "53ece519283def20e19ef986341a97ea54d6146e6d9f936ae574c1ca5af68a63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53ece519283def20e19ef986341a97ea54d6146e6d9f936ae574c1ca5af68a63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53ece519283def20e19ef986341a97ea54d6146e6d9f936ae574c1ca5af68a63", kill_on_drop: false }`
[INFO] [stdout] 53ece519283def20e19ef986341a97ea54d6146e6d9f936ae574c1ca5af68a63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] a8583b7b1207f931cda70b5a1e44a57162dbeb5384bdec5a62d9d729f7c29c4a
[INFO] running `Command { std: "docker" "start" "-a" "a8583b7b1207f931cda70b5a1e44a57162dbeb5384bdec5a62d9d729f7c29c4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling vroom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `INT_TYPE_ID`
[INFO] [stdout]  --> src/value.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | const INT_TYPE_ID: usize = 0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FLOAT_TYPE_ID`
[INFO] [stdout]  --> src/value.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | const FLOAT_TYPE_ID: usize = 1;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `STR_TYPE_ID`
[INFO] [stdout]  --> src/value.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const STR_TYPE_ID: usize = 2;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BOOL_TYPE_ID`
[INFO] [stdout]  --> src/value.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const BOOL_TYPE_ID: usize = 3;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BASE_TYPE_IDS`
[INFO] [stdout]   --> src/value.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / const BASE_TYPE_IDS: [&str; 4] = [
[INFO] [stdout] 6  | |     "int",
[INFO] [stdout] 7  | |     "float",
[INFO] [stdout] 8  | |     "str",
[INFO] [stdout] 9  | |     "bool",
[INFO] [stdout] 10 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `List`
[INFO] [stdout]   --> src/value.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     List(Vec<Val>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `HeapVal` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/value.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Value`
[INFO] [stdout]   --> src/value.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Value(Val),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `HeapVal` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/value.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `peek_is_int`
[INFO] [stdout]   --> src/value.rs:36:15
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub unsafe fn peek_is_int(stack: &[Val]) -> bool {
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pop_bool`
[INFO] [stdout]   --> src/value.rs:48:15
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub unsafe fn pop_bool(stack: &mut Vec<Val>) -> bool {
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PushFloat`
[INFO] [stdout]   --> src/vm.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     PushFloat,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/vm.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Pop`
[INFO] [stdout]   --> src/vm.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Pop,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/vm.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `JumpNeq`
[INFO] [stdout]   --> src/vm.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     JumpNeq,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/vm.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Add`
[INFO] [stdout]   --> src/vm.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Add,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/vm.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vroom` due to 2 previous errors; 13 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a8583b7b1207f931cda70b5a1e44a57162dbeb5384bdec5a62d9d729f7c29c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8583b7b1207f931cda70b5a1e44a57162dbeb5384bdec5a62d9d729f7c29c4a", kill_on_drop: false }`
[INFO] [stdout] a8583b7b1207f931cda70b5a1e44a57162dbeb5384bdec5a62d9d729f7c29c4a