[INFO] updating cached repository https://github.com/simvux/vec-reuse-test
[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] 231b3c4733521b93a68c9d66b9ae8d57cbf98cc3
[INFO] checking simvux/vec-reuse-test against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimvux%2Fvec-reuse-test" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simvux/vec-reuse-test on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/simvux/vec-reuse-test
[INFO] finished tweaking git repo https://github.com/simvux/vec-reuse-test
[INFO] tweaked toml for git repo https://github.com/simvux/vec-reuse-test written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/simvux/vec-reuse-test already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 3d0dfe178f5c5afed1798fc6378565515cda9e5d63d9050d2db3c2d200741723
[INFO] running `"docker" "start" "-a" "3d0dfe178f5c5afed1798fc6378565515cda9e5d63d9050d2db3c2d200741723"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking vec-reuse-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0635]: unknown feature `const_vec_new`
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_vec_new)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_vec_new`
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_vec_new)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `vec-reuse-test`.
[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: could not compile `vec-reuse-test`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3d0dfe178f5c5afed1798fc6378565515cda9e5d63d9050d2db3c2d200741723"`
[INFO] running `"docker" "rm" "-f" "3d0dfe178f5c5afed1798fc6378565515cda9e5d63d9050d2db3c2d200741723"`
[INFO] [stdout] 3d0dfe178f5c5afed1798fc6378565515cda9e5d63d9050d2db3c2d200741723