[INFO] cloning repository https://github.com/ctrlcctrlv/Qglif
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ctrlcctrlv/Qglif" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctrlcctrlv%2FQglif", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctrlcctrlv%2FQglif'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e34cbdf4db05f73ca3bf4ce01d0a95dbb9de011c
[INFO] checking ctrlcctrlv/Qglif against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctrlcctrlv%2FQglif" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ctrlcctrlv/Qglif on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ctrlcctrlv/Qglif
[INFO] finished tweaking git repo https://github.com/ctrlcctrlv/Qglif
[INFO] tweaked toml for git repo https://github.com/ctrlcctrlv/Qglif written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ctrlcctrlv/Qglif already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e161b8573d5b67b177a51a67e20914ca928f32850342c86a86b36a7c17b4fa77
[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" "e161b8573d5b67b177a51a67e20914ca928f32850342c86a86b36a7c17b4fa77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e161b8573d5b67b177a51a67e20914ca928f32850342c86a86b36a7c17b4fa77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e161b8573d5b67b177a51a67e20914ca928f32850342c86a86b36a7c17b4fa77", kill_on_drop: false }`
[INFO] [stdout] e161b8573d5b67b177a51a67e20914ca928f32850342c86a86b36a7c17b4fa77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 8458a49e20f899b48a20f6facee422ae83bb11287b8cf06e948fe0e712d00610
[INFO] running `Command { std: "docker" "start" "-a" "8458a49e20f899b48a20f6facee422ae83bb11287b8cf06e948fe0e712d00610", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling regex-syntax v0.6.19
[INFO] [stderr]    Compiling curl v0.4.33
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling curl-sys v0.4.36+curl-7.71.1
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling imgui-sys v0.4.0
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling clang-sys v1.0.0
[INFO] [stderr]    Compiling nfd v0.0.4 (https://github.com/raphlinus/nfd-rs?rev=5e09b79bf511e3a91ae8cefdb96e9734fa4a79c2#5e09b79b)
[INFO] [stderr]     Checking xmltree v0.10.1
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling filetime v0.2.12
[INFO] [stderr]    Compiling socket2 v0.3.15
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]     Checking glifparser v0.0.0 (https://github.com/mfeq/glifparser#5f5f1d76)
[INFO] [stderr]     Checking mfeq-ipc v0.0.0 (https://github.com/mfeq/ipc#f07ea86d)
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/glifparser-a0b09305bd94eda1/5f5f1d7/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(assoc_char_funcs, let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]    Compiling pathfinder_simd v0.5.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `glifparser`
[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" "8458a49e20f899b48a20f6facee422ae83bb11287b8cf06e948fe0e712d00610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8458a49e20f899b48a20f6facee422ae83bb11287b8cf06e948fe0e712d00610", kill_on_drop: false }`
[INFO] [stdout] 8458a49e20f899b48a20f6facee422ae83bb11287b8cf06e948fe0e712d00610