[INFO] fetching crate ipc 0.2.0...
[INFO] testing ipc-0.2.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate ipc 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ipc 0.2.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ipc 0.2.0
[INFO] finished tweaking crates.io crate ipc 0.2.0
[INFO] tweaked toml for crates.io crate ipc 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.47.0" "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] 3ecfe2057a51cc166889c344b9950ca4a1ec5aebbcf6cba1b3ab50ecd14e8830
[INFO] running `Command { std: "docker" "start" "-a" "3ecfe2057a51cc166889c344b9950ca4a1ec5aebbcf6cba1b3ab50ecd14e8830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ecfe2057a51cc166889c344b9950ca4a1ec5aebbcf6cba1b3ab50ecd14e8830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ecfe2057a51cc166889c344b9950ca4a1ec5aebbcf6cba1b3ab50ecd14e8830", kill_on_drop: false }`
[INFO] [stdout] 3ecfe2057a51cc166889c344b9950ca4a1ec5aebbcf6cba1b3ab50ecd14e8830
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=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" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa5ae50d402f3944e2a77a484982a6aafd984181504ef1afda3b639b3a4d3434
[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" "aa5ae50d402f3944e2a77a484982a6aafd984181504ef1afda3b639b3a4d3434", kill_on_drop: false }`
[INFO] [stderr]    Compiling rmp-serde v0.13.7
[INFO] [stderr]    Compiling ipc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:106:61
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = Error> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:162:40
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Item, Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]   --> src/platform/unix/unix_sock_stream.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]    |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 39 |         use std::io::ErrorKind;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:131:40
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Item, Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:183:61
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]     |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 210 |         use std::io::ErrorKind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:301:40
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Item, Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:345:61
[INFO] [stdout]     |
[INFO] [stdout] 345 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]   --> src/platform/unix/unix_sock_seqpacket.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]    |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 39 |         use std::io::ErrorKind;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:149:52
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn async_send<'a>(&'a self, to_send: T) -> Box<Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:170:40
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = T, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = T, Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]     |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 194 |         use std::io::ErrorKind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:276:40
[INFO] [stdout]     |
[INFO] [stdout] 276 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Item, Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:317:61
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:40
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Item, Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:40:61
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a>;
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = Error> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ipc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "aa5ae50d402f3944e2a77a484982a6aafd984181504ef1afda3b639b3a4d3434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa5ae50d402f3944e2a77a484982a6aafd984181504ef1afda3b639b3a4d3434", kill_on_drop: false }`
[INFO] [stdout] aa5ae50d402f3944e2a77a484982a6aafd984181504ef1afda3b639b3a4d3434
