[INFO] updating cached repository https://github.com/gefjon/saturn
[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] 762d2da427c979ec98726b0526cb30ec11e04336
[INFO] testing gefjon/saturn against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgefjon%2Fsaturn" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  50% (14/28)   
Checking out files:  53% (15/28)   
Checking out files:  57% (16/28)   
Checking out files:  60% (17/28)   
Checking out files:  64% (18/28)   
Checking out files:  67% (19/28)   
Checking out files:  71% (20/28)   
Checking out files:  75% (21/28)   
Checking out files:  78% (22/28)   
Checking out files:  82% (23/28)   
Checking out files:  85% (24/28)   
Checking out files:  89% (25/28)   
Checking out files:  92% (26/28)   
Checking out files:  96% (27/28)   
Checking out files: 100% (28/28)   
Checking out files: 100% (28/28), done.
[INFO] validating manifest of git repo https://github.com/gefjon/saturn on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/gefjon/saturn
[INFO] finished tweaking git repo https://github.com/gefjon/saturn
[INFO] tweaked toml for git repo https://github.com/gefjon/saturn written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/gefjon/saturn already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5c574ca5a111b4e967ae03296111e7e106dcc9e61ea7896a385cdb1c527ba058
[INFO] running `"docker" "start" "-a" "5c574ca5a111b4e967ae03296111e7e106dcc9e61ea7896a385cdb1c527ba058"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling tock-registers v0.3.0
[INFO] [stderr]    Compiling spin v0.4.10
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tock-registers-0.3.0/src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.10/src/lib.rs:6:35
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
[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 E0554`.
[INFO] [stderr] error: could not compile `tock-registers`.
[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: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5c574ca5a111b4e967ae03296111e7e106dcc9e61ea7896a385cdb1c527ba058"`
[INFO] running `"docker" "rm" "-f" "5c574ca5a111b4e967ae03296111e7e106dcc9e61ea7896a385cdb1c527ba058"`
[INFO] [stdout] 5c574ca5a111b4e967ae03296111e7e106dcc9e61ea7896a385cdb1c527ba058