[INFO] cloning repository https://github.com/playXE/lightvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/playXE/lightvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Flightvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Flightvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20ea0c8cfc9b151d34265a9265ad33e41e04a7f9
[INFO] checking playXE/lightvm against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Flightvm" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playXE/lightvm on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/playXE/lightvm
[INFO] finished tweaking git repo https://github.com/playXE/lightvm
[INFO] tweaked toml for git repo https://github.com/playXE/lightvm written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/playXE/lightvm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0726a93ea27cfaf1694793a78fc0fa9060a04d57de90c968a17da3d8d7a6b1c4
[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" "0726a93ea27cfaf1694793a78fc0fa9060a04d57de90c968a17da3d8d7a6b1c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0726a93ea27cfaf1694793a78fc0fa9060a04d57de90c968a17da3d8d7a6b1c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0726a93ea27cfaf1694793a78fc0fa9060a04d57de90c968a17da3d8d7a6b1c4", kill_on_drop: false }`
[INFO] [stdout] 0726a93ea27cfaf1694793a78fc0fa9060a04d57de90c968a17da3d8d7a6b1c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d516ccf1f7dae963c1a14e055ec6e25ca6da0b3d9455690b646635aaabed2cf8
[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" "d516ccf1f7dae963c1a14e055ec6e25ca6da0b3d9455690b646635aaabed2cf8", kill_on_drop: false }`
[INFO] [stderr]     Checking wafflelink v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 | /         macro_rules! prepare_func_calln {
[INFO] [stdout] 263 | |             ($c: expr,$i: expr,$w: expr,$n: expr) => {};
[INFO] [stdout] 264 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:279:9
[INFO] [stdout]     |
[INFO] [stdout] 279 | /         macro_rules! push_frame {
[INFO] [stdout] 280 | |             ($c: expr,$s: expr,$r: expr,$n: expr,$args: expr) => {{
[INFO] [stdout] 281 | |                 let mut cframe = CallFrame::new(self, $s);
[INFO] [stdout] 282 | |                 cframe.closure = $c;
[INFO] [stdout] ...   |
[INFO] [stdout] 298 | |             }};
[INFO] [stdout] 299 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 | /         macro_rules! prepare_func_calln {
[INFO] [stdout] 263 | |             ($c: expr,$i: expr,$w: expr,$n: expr) => {};
[INFO] [stdout] 264 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:279:9
[INFO] [stdout]     |
[INFO] [stdout] 279 | /         macro_rules! push_frame {
[INFO] [stdout] 280 | |             ($c: expr,$s: expr,$r: expr,$n: expr,$args: expr) => {{
[INFO] [stdout] 281 | |                 let mut cframe = CallFrame::new(self, $s);
[INFO] [stdout] 282 | |                 cframe.closure = $c;
[INFO] [stdout] ...   |
[INFO] [stdout] 298 | |             }};
[INFO] [stdout] 299 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:244:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |       pub fn class_lookup(&mut self, mut c: Ref<Object>, key: Value) -> Value {
[INFO] [stdout]     |                                                                         ----- expected `value::Value` because of return type
[INFO] [stdout] 244 | /         while c.is_non_null() {
[INFO] [stdout] 245 | |             let v = c.as_class().htable.lookup(key);
[INFO] [stdout] 246 | |             if let Some(v) = v {
[INFO] [stdout] 247 | |                 return v;
[INFO] [stdout] 248 | |             }
[INFO] [stdout] 249 | |             c = c.as_class().super_class;
[INFO] [stdout] 250 | |         }
[INFO] [stdout]     | |_________^ expected struct `value::Value`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/lib.rs:268:17
[INFO] [stdout]     |
[INFO] [stdout] 268 | /                 frame = fiber
[INFO] [stdout] 269 | |                     .frames
[INFO] [stdout] 270 | |                     .last()
[INFO] [stdout] 271 | |                     .map(|x| Ref::new(&**x))
[INFO] [stdout] 272 | |                     .unwrap_or(Ref::null());
[INFO] [stdout]     | |____________________________________________^ unreachable statement
[INFO] [stdout] ...
[INFO] [stdout] 301 | /         loop {
[INFO] [stdout] 302 | |             inst = *ip;
[INFO] [stdout] 303 | |             ip = ip.offset(1);
[INFO] [stdout] 304 | |             op = get_opcode(inst);
[INFO] [stdout] ...   |
[INFO] [stdout] 323 | |             }
[INFO] [stdout] 324 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 325 | 
[INFO] [stdout] 326 |           load_frame!();
[INFO] [stdout]     |           -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:244:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |       pub fn class_lookup(&mut self, mut c: Ref<Object>, key: Value) -> Value {
[INFO] [stdout]     |                                                                         ----- expected `value::Value` because of return type
[INFO] [stdout] 244 | /         while c.is_non_null() {
[INFO] [stdout] 245 | |             let v = c.as_class().htable.lookup(key);
[INFO] [stdout] 246 | |             if let Some(v) = v {
[INFO] [stdout] 247 | |                 return v;
[INFO] [stdout] 248 | |             }
[INFO] [stdout] 249 | |             c = c.as_class().super_class;
[INFO] [stdout] 250 | |         }
[INFO] [stdout]     | |_________^ expected struct `value::Value`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/lib.rs:268:17
[INFO] [stdout]     |
[INFO] [stdout] 268 | /                 frame = fiber
[INFO] [stdout] 269 | |                     .frames
[INFO] [stdout] 270 | |                     .last()
[INFO] [stdout] 271 | |                     .map(|x| Ref::new(&**x))
[INFO] [stdout] 272 | |                     .unwrap_or(Ref::null());
[INFO] [stdout]     | |____________________________________________^ unreachable statement
[INFO] [stdout] ...
[INFO] [stdout] 301 | /         loop {
[INFO] [stdout] 302 | |             inst = *ip;
[INFO] [stdout] 303 | |             ip = ip.offset(1);
[INFO] [stdout] 304 | |             op = get_opcode(inst);
[INFO] [stdout] ...   |
[INFO] [stdout] 323 | |             }
[INFO] [stdout] 324 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 325 | 
[INFO] [stdout] 326 |           load_frame!();
[INFO] [stdout]     |           -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wafflelink`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d516ccf1f7dae963c1a14e055ec6e25ca6da0b3d9455690b646635aaabed2cf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d516ccf1f7dae963c1a14e055ec6e25ca6da0b3d9455690b646635aaabed2cf8", kill_on_drop: false }`
[INFO] [stdout] d516ccf1f7dae963c1a14e055ec6e25ca6da0b3d9455690b646635aaabed2cf8