[INFO] updating cached repository https://github.com/mt-inside/mtos
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd0d8ab9a6fb1a4bd2199921d64126135e63a8b7
[INFO] checking mt-inside/mtos against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmt-inside%2Fmtos" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mt-inside/mtos on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mt-inside/mtos
[INFO] finished tweaking git repo https://github.com/mt-inside/mtos
[INFO] tweaked toml for git repo https://github.com/mt-inside/mtos written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mt-inside/mtos already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] efef4adec32e12994cbfe52bc7e99f9b2db7b7560c6ed3f3676dff1375c1529b
[INFO] running `"docker" "start" "-a" "efef4adec32e12994cbfe52bc7e99f9b2db7b7560c6ed3f3676dff1375c1529b"`
[INFO] [stderr]    Compiling llvm-tools v0.1.1
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking cpuio v0.2.0
[INFO] [stderr]     Checking fixedvec v0.2.4
[INFO] [stderr]     Checking font8x8 v0.2.5
[INFO] [stderr]     Checking pc-keyboard v0.3.1
[INFO] [stderr]     Checking volatile v0.2.6
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking linked_list_allocator v0.6.4
[INFO] [stderr]     Checking x86_64 v0.2.14
[INFO] [stderr]    Compiling raw-cpuid v6.1.0
[INFO] [stderr] error[E0432]: unresolved import `alloc::alloc::Alloc`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.4/src/lib.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 | use alloc::alloc::{Alloc, AllocErr, Layout};
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    no `Alloc` in `alloc`
[INFO] [stderr]    |                    help: a similar name exists in the module: `alloc`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `linked_list_allocator`.
[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 `"docker" "inspect" "efef4adec32e12994cbfe52bc7e99f9b2db7b7560c6ed3f3676dff1375c1529b"`
[INFO] running `"docker" "rm" "-f" "efef4adec32e12994cbfe52bc7e99f9b2db7b7560c6ed3f3676dff1375c1529b"`
[INFO] [stdout] efef4adec32e12994cbfe52bc7e99f9b2db7b7560c6ed3f3676dff1375c1529b
