[INFO] fetching crate maidsafe_types 0.2.3...
[INFO] documenting maidsafe_types-0.2.3 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate maidsafe_types 0.2.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate maidsafe_types 0.2.3 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maidsafe_types 0.2.3
[INFO] finished tweaking crates.io crate maidsafe_types 0.2.3
[INFO] tweaked toml for crates.io crate maidsafe_types 0.2.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 975928c26f606cdb25ba66dbef73336264df71705934f0b2167525b421a2ac02
[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" "975928c26f606cdb25ba66dbef73336264df71705934f0b2167525b421a2ac02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "975928c26f606cdb25ba66dbef73336264df71705934f0b2167525b421a2ac02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "975928c26f606cdb25ba66dbef73336264df71705934f0b2167525b421a2ac02", kill_on_drop: false }`
[INFO] [stdout] 975928c26f606cdb25ba66dbef73336264df71705934f0b2167525b421a2ac02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13d38ce1fdaa79a0543b5edc27c87ff1fa718dba783a35d92a1bed7a39fbd88a
[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" "13d38ce1fdaa79a0543b5edc27c87ff1fa718dba783a35d92a1bed7a39fbd88a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libsodium-sys v0.2.6
[INFO] [stderr]     Checking accumulator v0.0.4
[INFO] [stderr]     Checking crust v0.1.5
[INFO] [stdout] error[E0433]: failed to resolve: could not find `consts` in `libc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:51:15
[INFO] [stdout]    |
[INFO] [stdout] 51 |     use libc::consts::os::bsd44::{AF_INET, AF_INET6};
[INFO] [stdout]    |               ^^^^^^ could not find `consts` in `libc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `funcs` in `libc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use libc::funcs::bsd43::getifaddrs as posix_getifaddrs;
[INFO] [stdout]    |               ^^^^^ could not find `funcs` in `libc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `funcs` in `libc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:53:15
[INFO] [stdout]    |
[INFO] [stdout] 53 |     use libc::funcs::bsd43::freeifaddrs as posix_freeifaddrs;
[INFO] [stdout]    |               ^^^^^ could not find `funcs` in `libc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `types` in `libc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 |     use libc::types::os::common::bsd44::ifaddrs as posix_ifaddrs;
[INFO] [stdout]    |               ^^^^^ could not find `types` in `libc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `types` in `libc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:55:15
[INFO] [stdout]    |
[INFO] [stdout] 55 |     use libc::types::os::common::bsd44::sockaddr as posix_sockaddr;
[INFO] [stdout]    |               ^^^^^ could not find `types` in `libc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `types` in `libc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:56:15
[INFO] [stdout]    |
[INFO] [stdout] 56 |     use libc::types::os::common::bsd44::sockaddr_in as posix_sockaddr_in;
[INFO] [stdout]    |               ^^^^^ could not find `types` in `libc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `types` in `libc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:57:15
[INFO] [stdout]    |
[INFO] [stdout] 57 |     use libc::types::os::common::bsd44::sockaddr_in6 as posix_sockaddr_in6;
[INFO] [stdout]    |               ^^^^^ could not find `types` in `libc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `check` found for struct `LruCache<K, Entry<V>>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/accumulator-0.0.4/src/lib.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 |         self.storage.check(name)
[INFO] [stdout]    |                      ^^^^^ method not found in `LruCache<K, Entry<V>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `add` found for struct `LruCache<K, Entry<V>>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/accumulator-0.0.4/src/lib.rs:82:26
[INFO] [stdout]    |
[INFO] [stdout] 82 |             self.storage.add(name.clone(), entry_in.clone());
[INFO] [stdout]    |                          ^^^ method not found in `LruCache<K, Entry<V>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `add` found for struct `LruCache<K, Entry<V>>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/accumulator-0.0.4/src/lib.rs:90:26
[INFO] [stdout]    |
[INFO] [stdout] 90 |             self.storage.add(name.clone(), tmp.clone());
[INFO] [stdout]    |                          ^^^ method not found in `LruCache<K, Entry<V>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Tm` in crate `time`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/bootstrap_handler.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |     last_updated: time::Tm,
[INFO] [stdout]    |                         ^^ not found in `time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `now` in crate `time`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/bootstrap_handler.rs:84:33
[INFO] [stdout]    |
[INFO] [stdout] 84 |             last_updated: time::now(),
[INFO] [stdout]    |                                 ^^^ not found in `time`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 18 | use bootstrap_handler::env::sys::time::inner::now;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `now` in crate `time`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/bootstrap_handler.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |         if time::now() > self.last_updated + BootstrapHandler::get_update_duration() {
[INFO] [stdout]    |                  ^^^ not found in `time`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 18 | use bootstrap_handler::env::sys::time::inner::now;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `posix_sockaddr` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:60:45
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn sockaddr_to_ipaddr(sockaddr : *const posix_sockaddr) -> Option<IpAddr> {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `AF_INET` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:62:50
[INFO] [stdout]    |
[INFO] [stdout] 62 |         if unsafe{*sockaddr}.sa_family as u32 == AF_INET as u32 {
[INFO] [stdout]    |                                                  ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this constant
[INFO] [stdout]    |
[INFO] [stdout] 47 |     use libc::AF_INET;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `posix_sockaddr_in` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:63:54
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let ref sa = unsafe{*(sockaddr as *const posix_sockaddr_in)};
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `AF_INET6` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:70:57
[INFO] [stdout]    |
[INFO] [stdout] 70 |         } else if unsafe{*sockaddr}.sa_family as u32 == AF_INET6 as u32 {
[INFO] [stdout]    |                                                         ^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this constant
[INFO] [stdout]    |
[INFO] [stdout] 47 |     use libc::AF_INET6;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `posix_sockaddr_in6` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:71:54
[INFO] [stdout]    |
[INFO] [stdout] 71 |             let ref sa = unsafe{*(sockaddr as *const posix_sockaddr_in6)};
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `posix_ifaddrs` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:89:31
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn do_broadcast(ifaddr : &posix_ifaddrs) -> IpAddr {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `posix_ifaddrs` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:104:32
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let mut ifaddrs : *mut posix_ifaddrs;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `posix_getifaddrs` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:107:20
[INFO] [stdout]     |
[INFO] [stdout] 107 |           if -1 == posix_getifaddrs(&mut ifaddrs) {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `posix_freeifaddrs` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/getifaddrs.rs:138:18
[INFO] [stdout]     |
[INFO] [stdout] 138 |         unsafe { posix_freeifaddrs(ifaddrs); }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![feature(ip_addr, ip, udp, arc_weak)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `accumulator`
[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] [stdout] error[E0599]: no method named `downgrade` found for struct `Arc<Mutex<State>>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/connection_manager.rs:97:29
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let ws = self.state.downgrade();
[INFO] [stdout]    |                  -----------^^^^^^^^^
[INFO] [stdout]    |                  |          |
[INFO] [stdout]    |                  |          this is an associated function, not a method
[INFO] [stdout]    |                  help: use associated function syntax instead: `Arc::<Mutex<State>>::downgrade`
[INFO] [stdout]    |
[INFO] [stdout]    = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout]    = note: the candidate is defined in an impl for the type `Arc<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `downgrade` found for struct `Arc<Mutex<State>>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/connection_manager.rs:196:29
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let ws = self.state.downgrade();
[INFO] [stdout]     |                  -----------^^^^^^^^^
[INFO] [stdout]     |                  |          |
[INFO] [stdout]     |                  |          this is an associated function, not a method
[INFO] [stdout]     |                  help: use associated function syntax instead: `Arc::<Mutex<State>>::downgrade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout]     = note: the candidate is defined in an impl for the type `Arc<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `downgrade` found for struct `Arc<Mutex<State>>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/connection_manager.rs:278:37
[INFO] [stdout]     |
[INFO] [stdout] 278 |         let weak_state = self.state.downgrade();
[INFO] [stdout]     |                          -----------^^^^^^^^^
[INFO] [stdout]     |                          |          |
[INFO] [stdout]     |                          |          this is an associated function, not a method
[INFO] [stdout]     |                          help: use associated function syntax instead: `Arc::<Mutex<State>>::downgrade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout]     = note: the candidate is defined in an impl for the type `Arc<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `downgrade` found for struct `Arc<Mutex<State>>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/connection_manager.rs:305:29
[INFO] [stdout]     |
[INFO] [stdout] 305 |         let ws = self.state.downgrade();
[INFO] [stdout]     |                  -----------^^^^^^^^^
[INFO] [stdout]     |                  |          |
[INFO] [stdout]     |                  |          this is an associated function, not a method
[INFO] [stdout]     |                  help: use associated function syntax instead: `Arc::<Mutex<State>>::downgrade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout]     = note: the candidate is defined in an impl for the type `Arc<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `downgrade` found for struct `Arc<Mutex<State>>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/connection_manager.rs:337:29
[INFO] [stdout]     |
[INFO] [stdout] 337 |         let ws = self.state.downgrade();
[INFO] [stdout]     |                  -----------^^^^^^^^^
[INFO] [stdout]     |                  |          |
[INFO] [stdout]     |                  |          this is an associated function, not a method
[INFO] [stdout]     |                  help: use associated function syntax instead: `Arc::<Mutex<State>>::downgrade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout]     = note: the candidate is defined in an impl for the type `Arc<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `downgrade` found for struct `Arc<Mutex<State>>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/connection_manager.rs:353:33
[INFO] [stdout]     |
[INFO] [stdout] 353 |         let mut ws = self.state.downgrade();
[INFO] [stdout]     |                      -----------^^^^^^^^^
[INFO] [stdout]     |                      |          |
[INFO] [stdout]     |                      |          this is an associated function, not a method
[INFO] [stdout]     |                      help: use associated function syntax instead: `Arc::<Mutex<State>>::downgrade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout]     = note: the candidate is defined in an impl for the type `Arc<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `downgrade` found for struct `Arc<Mutex<State>>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/connection_manager.rs:407:66
[INFO] [stdout]     |
[INFO] [stdout] 407 |                         let _ = try!(handle_connect(state_cloned.downgrade(), trans,
[INFO] [stdout]     |                                                     -------------^^^^^^^^^
[INFO] [stdout]     |                                                     |            |
[INFO] [stdout]     |                                                     |            this is an associated function, not a method
[INFO] [stdout]     |                                                     help: use associated function syntax instead: `Arc::<Mutex<State>>::downgrade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout]     = note: the candidate is defined in an impl for the type `Arc<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `downgrade` found for struct `Arc<Mutex<State>>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crust-0.1.5/src/connection_manager.rs:427:41
[INFO] [stdout]     |
[INFO] [stdout] 427 |         let mut weak_state = self.state.downgrade();
[INFO] [stdout]     |                              -----------^^^^^^^^^
[INFO] [stdout]     |                              |          |
[INFO] [stdout]     |                              |          this is an associated function, not a method
[INFO] [stdout]     |                              help: use associated function syntax instead: `Arc::<Mutex<State>>::downgrade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout]     = note: the candidate is defined in an impl for the type `Arc<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 28 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0425, E0433, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "13d38ce1fdaa79a0543b5edc27c87ff1fa718dba783a35d92a1bed7a39fbd88a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13d38ce1fdaa79a0543b5edc27c87ff1fa718dba783a35d92a1bed7a39fbd88a", kill_on_drop: false }`
[INFO] [stdout] 13d38ce1fdaa79a0543b5edc27c87ff1fa718dba783a35d92a1bed7a39fbd88a
