[INFO] fetching crate cosmo 0.1.0...
[INFO] checking cosmo-0.1.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate cosmo 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cosmo 0.1.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded standback v0.3.3
[INFO] [stderr]   Downloaded time v0.3.0-alpha-2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e370616ebcf50468d0eb7a3b47ed6a7c9e290164d800d5f0a65e58d16dd7cdd9
[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" "e370616ebcf50468d0eb7a3b47ed6a7c9e290164d800d5f0a65e58d16dd7cdd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e370616ebcf50468d0eb7a3b47ed6a7c9e290164d800d5f0a65e58d16dd7cdd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e370616ebcf50468d0eb7a3b47ed6a7c9e290164d800d5f0a65e58d16dd7cdd9", kill_on_drop: false }`
[INFO] [stdout] e370616ebcf50468d0eb7a3b47ed6a7c9e290164d800d5f0a65e58d16dd7cdd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] 66381770492d1b11024550a237b9799484fa6c3637c2824f357a15287158d77f
[INFO] running `Command { std: "docker" "start" "-a" "66381770492d1b11024550a237b9799484fa6c3637c2824f357a15287158d77f", 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 version_check v0.9.3
[INFO] [stderr]    Compiling standback v0.3.3
[INFO] [stderr]     Checking time v0.3.0-alpha-2
[INFO] [stderr]     Checking cosmo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unknown crate type: `dynlib`
[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[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[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] [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[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: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[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" "66381770492d1b11024550a237b9799484fa6c3637c2824f357a15287158d77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66381770492d1b11024550a237b9799484fa6c3637c2824f357a15287158d77f", kill_on_drop: false }`
[INFO] [stdout] 66381770492d1b11024550a237b9799484fa6c3637c2824f357a15287158d77f