[INFO] cloning repository https://github.com/acmcarther/next_space_coop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/acmcarther/next_space_coop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmcarther%2Fnext_space_coop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmcarther%2Fnext_space_coop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05828fa3281ff433093bbd1abadeed69503cc729
[INFO] checking acmcarther/next_space_coop against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmcarther%2Fnext_space_coop" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/acmcarther/next_space_coop on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/acmcarther/next_space_coop
[INFO] finished tweaking git repo https://github.com/acmcarther/next_space_coop
[INFO] tweaked toml for git repo https://github.com/acmcarther/next_space_coop written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/acmcarther/next_space_coop already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2900d80382ee241e3e9306c7df54aadc02c258b25d6d0dd378db180ec330fd9d
[INFO] running `Command { std: "docker" "start" "-a" "2900d80382ee241e3e9306c7df54aadc02c258b25d6d0dd378db180ec330fd9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2900d80382ee241e3e9306c7df54aadc02c258b25d6d0dd378db180ec330fd9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2900d80382ee241e3e9306c7df54aadc02c258b25d6d0dd378db180ec330fd9d", kill_on_drop: false }`
[INFO] [stdout] 2900d80382ee241e3e9306c7df54aadc02c258b25d6d0dd378db180ec330fd9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64c02f1b4fc05d573f9a8c63c2ef4ef71943a4920f8671d6de5988e1da13b931
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "64c02f1b4fc05d573f9a8c63c2ef4ef71943a4920f8671d6de5988e1da13b931", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]    Compiling siphasher v0.2.1
[INFO] [stderr]    Compiling serde v0.9.7
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking lazy_static v0.2.2
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking either v1.0.3
[INFO] [stderr]     Checking regex-syntax v0.4.0
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking atom v0.3.4
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking threadpool v1.3.2
[INFO] [stderr]     Checking error-chain v0.8.1
[INFO] [stderr]     Checking protobuf v1.2.1
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking itertools v0.5.9
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]     Checking fern v0.3.5
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]     Checking shared_library v0.1.5
[INFO] [stderr]     Checking term_size v0.2.2
[INFO] [stderr]     Checking capnp v0.7.5
[INFO] [stderr]     Checking aho-corasick v0.6.2
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]     Checking thread_local v0.3.2
[INFO] [stderr]     Checking clap v2.20.3
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking ash v0.14.2
[INFO] [stderr]     Checking mio v0.6.4
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stdout] error[E0502]: cannot borrow `*reff` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/capnp-0.7.5/src/private/layout.rs:643:47
[INFO] [stdout]     |
[INFO] [stdout] 643 |         let ptr = try!(follow_fars(&mut reff, (*reff).target(), &mut segment));
[INFO] [stdout]     |                        ----------- ---------  ^^^^^^^ immutable borrow occurs here
[INFO] [stdout]     |                        |           |
[INFO] [stdout]     |                        |           mutable borrow occurs here
[INFO] [stdout]     |                        mutable borrow later used by call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `capnp`
[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 `Command { std: "docker" "inspect" "64c02f1b4fc05d573f9a8c63c2ef4ef71943a4920f8671d6de5988e1da13b931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64c02f1b4fc05d573f9a8c63c2ef4ef71943a4920f8671d6de5988e1da13b931", kill_on_drop: false }`
[INFO] [stdout] 64c02f1b4fc05d573f9a8c63c2ef4ef71943a4920f8671d6de5988e1da13b931