[INFO] crate router-rs 0.2.1 is already in cache
[INFO] testing router-rs-0.2.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate router-rs 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate router-rs 0.2.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate router-rs 0.2.1
[INFO] finished tweaking crates.io crate router-rs 0.2.1
[INFO] tweaked toml for crates.io crate router-rs 0.2.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 82b56725737ae7aab2325b33faa95dd6319a331ba6b4d0c34358f286d68d0468
[INFO] running `"docker" "start" "-a" "82b56725737ae7aab2325b33faa95dd6319a331ba6b4d0c34358f286d68d0468"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling html-validation v0.1.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling js-sys v0.3.40
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling web-sys v0.3.40
[INFO] [stderr]    Compiling html-macro v0.1.9
[INFO] [stderr]    Compiling router-rs-macro v0.1.1
[INFO] [stderr]    Compiling virtual-node v0.2.7
[INFO] [stderr]    Compiling virtual-dom-rs v0.6.14
[INFO] [stderr]    Compiling router-rs v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(proc_macro_hygiene)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `virtual_dom_rs::VText`
[INFO] [stderr]  --> src/route.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use virtual_dom_rs::VText;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `virtual_dom_rs::VirtualNode`
[INFO] [stderr]  --> src/route.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use virtual_dom_rs::VirtualNode;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/route.rs:67:32
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub type ParseRouteParam = Box<Fn(&str, &str) -> Option<Box<dyn RouteParam>>>;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str, &str) -> Option<Box<dyn RouteParam>>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `router-rs`.
[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 `"docker" "inspect" "82b56725737ae7aab2325b33faa95dd6319a331ba6b4d0c34358f286d68d0468"`
[INFO] running `"docker" "rm" "-f" "82b56725737ae7aab2325b33faa95dd6319a331ba6b4d0c34358f286d68d0468"`
[INFO] [stdout] 82b56725737ae7aab2325b33faa95dd6319a331ba6b4d0c34358f286d68d0468