[INFO] fetching crate assets 0.3.0...
[INFO] checking assets-0.3.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate assets 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate assets 0.3.0 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 assets 0.3.0
[INFO] finished tweaking crates.io crate assets 0.3.0
[INFO] tweaked toml for crates.io crate assets 0.3.0 written to /workspace/builds/worker-9/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] d0c1744b4b1f02f76c6426e7e837da840f4e8a96aeb98cc0a8cab43ba4ef7a01
[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" "d0c1744b4b1f02f76c6426e7e837da840f4e8a96aeb98cc0a8cab43ba4ef7a01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0c1744b4b1f02f76c6426e7e837da840f4e8a96aeb98cc0a8cab43ba4ef7a01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0c1744b4b1f02f76c6426e7e837da840f4e8a96aeb98cc0a8cab43ba4ef7a01", kill_on_drop: false }`
[INFO] [stdout] d0c1744b4b1f02f76c6426e7e837da840f4e8a96aeb98cc0a8cab43ba4ef7a01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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] 60b5f6cb6304f4e6146203918f64e2c7b8156b6ac3dd24cb46682a065664c386
[INFO] running `Command { std: "docker" "start" "-a" "60b5f6cb6304f4e6146203918f64e2c7b8156b6ac3dd24cb46682a065664c386", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.20
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling nonzero_signed v1.0.3
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking minimal-lexical v0.1.4
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.4
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]     Checking cast_trait v0.1.2
[INFO] [stderr]     Checking type-name v0.1.0
[INFO] [stderr]    Compiling winit v0.25.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/type-name-0.1.0/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking itoa v0.4.8
[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 `type-name` 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" "60b5f6cb6304f4e6146203918f64e2c7b8156b6ac3dd24cb46682a065664c386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b5f6cb6304f4e6146203918f64e2c7b8156b6ac3dd24cb46682a065664c386", kill_on_drop: false }`
[INFO] [stdout] 60b5f6cb6304f4e6146203918f64e2c7b8156b6ac3dd24cb46682a065664c386
