[INFO] fetching crate mun_language_server 0.1.0...
[INFO] testing mun_language_server-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mun_language_server 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate mun_language_server 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mun_language_server 0.1.0
[INFO] finished tweaking crates.io crate mun_language_server 0.1.0
[INFO] tweaked toml for crates.io crate mun_language_server 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lsp-server v0.5.2
[INFO] [stderr]   Downloaded lsp-types v0.86.0
[INFO] [stderr]   Downloaded mun_vfs v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d0aec61c45d48b95f0809d645d5ae2650b46e9e644aa4dbecb5a165b86b5e2d
[INFO] running `Command { std: "docker" "start" "-a" "7d0aec61c45d48b95f0809d645d5ae2650b46e9e644aa4dbecb5a165b86b5e2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d0aec61c45d48b95f0809d645d5ae2650b46e9e644aa4dbecb5a165b86b5e2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d0aec61c45d48b95f0809d645d5ae2650b46e9e644aa4dbecb5a165b86b5e2d", kill_on_drop: false }`
[INFO] [stdout] 7d0aec61c45d48b95f0809d645d5ae2650b46e9e644aa4dbecb5a165b86b5e2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81c11b4d841f24e905108e21fab4cc763199d330ab488b297a3b5699e9b3d835
[INFO] running `Command { std: "docker" "start" "-a" "81c11b4d841f24e905108e21fab4cc763199d330ab488b297a3b5699e9b3d835", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling mun_target v0.3.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.6
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling drop_bomb v0.1.5
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling superslice v1.0.0
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling inotify v0.9.3
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling tinyvec v1.3.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling notify v5.0.0-pre.13
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling mun_vfs v0.1.0
[INFO] [stdout] error[E0599]: no function or associated item named `new_immediate` found for trait object `dyn Watcher` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mun_vfs-0.1.0/src/monitor/notify_monitor.rs:142:53
[INFO] [stdout]     |
[INFO] [stdout] 142 |             let watcher = log_notify_error(Watcher::new_immediate(move |event| {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^ function or associated item not found in `dyn Watcher`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mun_vfs` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "81c11b4d841f24e905108e21fab4cc763199d330ab488b297a3b5699e9b3d835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81c11b4d841f24e905108e21fab4cc763199d330ab488b297a3b5699e9b3d835", kill_on_drop: false }`
[INFO] [stdout] 81c11b4d841f24e905108e21fab4cc763199d330ab488b297a3b5699e9b3d835