[INFO] updating cached repository https://github.com/gnieto/rs-cron
[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] d9c1f2d136b79428a4e30704e1cef0bee4c7d992
[INFO] testing gnieto/rs-cron against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnieto%2Frs-cron" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gnieto/rs-cron on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/gnieto/rs-cron
[INFO] finished tweaking git repo https://github.com/gnieto/rs-cron
[INFO] tweaked toml for git repo https://github.com/gnieto/rs-cron written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/gnieto/rs-cron already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.44.0" "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] 606fa317021cdb29d383171a5d4f68aeaf5d0725d820f169c62c7f929cbd547e
[INFO] running `"docker" "start" "-a" "606fa317021cdb29d383171a5d4f68aeaf5d0725d820f169c62c7f929cbd547e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling uuid v0.1.18
[INFO] [stderr]    Compiling cron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(collections, test, collections_bound, btree_range)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cron/cron.rs:14:23
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub executor: Box<CronJobExecutor>
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CronJobExecutor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cron/cron.rs:18:44
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(ts: Timespec, executor: Box<CronJobExecutor>) -> CronJob {
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CronJobExecutor`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stderr]    --> src/cron/cron.rs:168:40
[INFO] [stderr]     |
[INFO] [stderr] 168 |         for (&key, value) in self.jobs.range(Unbounded, Included(&current_time)) {
[INFO] [stderr]     |                                        ^^^^^ ---------  ----------------------- supplied 2 arguments
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `cron`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "606fa317021cdb29d383171a5d4f68aeaf5d0725d820f169c62c7f929cbd547e"`
[INFO] running `"docker" "rm" "-f" "606fa317021cdb29d383171a5d4f68aeaf5d0725d820f169c62c7f929cbd547e"`
[INFO] [stdout] 606fa317021cdb29d383171a5d4f68aeaf5d0725d820f169c62c7f929cbd547e