[INFO] fetching crate dep-obj 0.8.0...
[INFO] checking dep-obj-0.8.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate dep-obj 0.8.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate dep-obj 0.8.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dep-obj 0.8.0
[INFO] finished tweaking crates.io crate dep-obj 0.8.0
[INFO] tweaked toml for crates.io crate dep-obj 0.8.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate dep-obj 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21ad553b9219296e138f2e3db1ef320635e430127421aa44f9765a1d74316722
[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" "21ad553b9219296e138f2e3db1ef320635e430127421aa44f9765a1d74316722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21ad553b9219296e138f2e3db1ef320635e430127421aa44f9765a1d74316722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21ad553b9219296e138f2e3db1ef320635e430127421aa44f9765a1d74316722", kill_on_drop: false }`
[INFO] [stdout] 21ad553b9219296e138f2e3db1ef320635e430127421aa44f9765a1d74316722
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80020cd736b2b4d9e540157860dbcbb30aa41b55c78e006d962fc90188df5495
[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" "80020cd736b2b4d9e540157860dbcbb30aa41b55c78e006d962fc90188df5495", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling paste v1.0.1
[INFO] [stderr]     Checking generics v0.1.3
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking generics v0.2.5
[INFO] [stderr]     Checking dyn-clone v1.0.2
[INFO] [stderr]     Checking macro-attr-2018 v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking dyn-context v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling enum-ordinalize v3.1.8
[INFO] [stderr]    Compiling educe v0.4.13
[INFO] [stderr]     Checking phantom-type v0.3.0
[INFO] [stderr]     Checking components-arena v1.1.1
[INFO] [stdout] error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/components-arena-1.1.1/src/lib.rs:482:6
[INFO] [stdout]     |
[INFO] [stdout] 482 | impl<C: ComponentClass> ComponentClassMutex<C> {
[INFO] [stdout]     |      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
[INFO] [stdout]     = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable
[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 E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `components-arena`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "80020cd736b2b4d9e540157860dbcbb30aa41b55c78e006d962fc90188df5495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80020cd736b2b4d9e540157860dbcbb30aa41b55c78e006d962fc90188df5495", kill_on_drop: false }`
[INFO] [stdout] 80020cd736b2b4d9e540157860dbcbb30aa41b55c78e006d962fc90188df5495