[INFO] fetching crate cosmo 0.1.0...
[INFO] checking cosmo-0.1.0 against beta for pr-78714
[INFO] extracting crate cosmo 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate cosmo 0.1.0 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 crates.io crate cosmo 0.1.0
[INFO] finished tweaking crates.io crate cosmo 0.1.0
[INFO] tweaked toml for crates.io crate cosmo 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (time) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: unused manifest key: dependencies.time.time
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 44b855d3f3f748cec967994feee90f8c221841ea9a6b73d4669dd977c4ec613f
[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" "44b855d3f3f748cec967994feee90f8c221841ea9a6b73d4669dd977c4ec613f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44b855d3f3f748cec967994feee90f8c221841ea9a6b73d4669dd977c4ec613f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44b855d3f3f748cec967994feee90f8c221841ea9a6b73d4669dd977c4ec613f", kill_on_drop: false }`
[INFO] [stdout] 44b855d3f3f748cec967994feee90f8c221841ea9a6b73d4669dd977c4ec613f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] 63c936db79cbcdc73ce88de69cee3f91d6c409679165966f6cf647f93f8e04a2
[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" "63c936db79cbcdc73ce88de69cee3f91d6c409679165966f6cf647f93f8e04a2", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (time) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: unused manifest key: dependencies.time.time
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking time v0.2.22
[INFO] [stderr]     Checking cosmo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unknown crate type: `dynlib`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `cosmo`
[INFO] [stdout]  --> benches/collection_benches/spsc_concurrent_queue_bench.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate cosmo;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cosmo`
[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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::alloc::heap`
[INFO] [stdout]  --> src/collection/buffer.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use self::alloc::heap::{allocate, deallocate};
[INFO] [stdout]   |                  ^^^^ could not find `heap` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `oom` in crate `self::alloc`
[INFO] [stdout]   --> src/collection/buffer.rs:78:37
[INFO] [stdout]    |
[INFO] [stdout] 78 |     if ptr.is_null() { self::alloc::oom() }
[INFO] [stdout]    |                                     ^^^ not found in `self::alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(alloc, core, heap_api, oom)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "63c936db79cbcdc73ce88de69cee3f91d6c409679165966f6cf647f93f8e04a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63c936db79cbcdc73ce88de69cee3f91d6c409679165966f6cf647f93f8e04a2", kill_on_drop: false }`
[INFO] [stdout] 63c936db79cbcdc73ce88de69cee3f91d6c409679165966f6cf647f93f8e04a2