[INFO] crate alloc-singleton 0.1.0 is already in cache
[INFO] checking alloc-singleton-0.1.0 against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] extracting crate alloc-singleton 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate alloc-singleton 0.1.0 on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate alloc-singleton 0.1.0
[INFO] finished tweaking crates.io crate alloc-singleton 0.1.0
[INFO] tweaked toml for crates.io crate alloc-singleton 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 83ec30c84e5ca7c161813caf23d677c1aae407e3c2ecf2ece585ce7407ae9526
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "83ec30c84e5ca7c161813caf23d677c1aae407e3c2ecf2ece585ce7407ae9526"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]     Checking as-slice v0.1.2
[INFO] [stderr]    Compiling owned-singleton-macros v0.1.0
[INFO] [stderr]     Checking owned-singleton v0.1.0
[INFO] [stderr]     Checking alloc-singleton v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.24s
[INFO] running `"docker" "inspect" "83ec30c84e5ca7c161813caf23d677c1aae407e3c2ecf2ece585ce7407ae9526"`
[INFO] running `"docker" "rm" "-f" "83ec30c84e5ca7c161813caf23d677c1aae407e3c2ecf2ece585ce7407ae9526"`
[INFO] [stdout] 83ec30c84e5ca7c161813caf23d677c1aae407e3c2ecf2ece585ce7407ae9526