[INFO] updating cached repository https://github.com/jswrenn/midinet
[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] f29b1b826ab8070fc0116200fbe293792a0cb1c2
[INFO] checking jswrenn/midinet against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjswrenn%2Fmidinet" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jswrenn/midinet on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jswrenn/midinet
[INFO] finished tweaking git repo https://github.com/jswrenn/midinet
[INFO] tweaked toml for git repo https://github.com/jswrenn/midinet written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/jswrenn/midinet already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=forbid" "-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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a5bd9479d30ba6adcabf5efe485ff301874b2eb4772cf3218828abc51a122c2b
[INFO] running `"docker" "start" "-a" "a5bd9479d30ba6adcabf5efe485ff301874b2eb4772cf3218828abc51a122c2b"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking alsa-sys v0.1.1
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking alsa v0.2.0
[INFO] [stderr]    Compiling structopt-derive v0.2.7
[INFO] [stderr]     Checking structopt v0.2.7
[INFO] [stderr]     Checking midinet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/bin/client.rs:38:38
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn run(options : &Options) -> Result<!, Box<Error>> {
[INFO] [stderr]    |                                      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/bin/client.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate structopt;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/client.rs:27:44
[INFO] [stderr]    |
[INFO] [stderr] 27 |     -> Result<(Port, Vec<SocketAddr>), Box<Error>>
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Error`
[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/bin/client.rs:38:45
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn run(options : &Options) -> Result<!, Box<Error>> {
[INFO] [stderr]    |                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/bin/client.rs:38:38
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn run(options : &Options) -> Result<!, Box<Error>> {
[INFO] [stderr]    |                                      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/bin/client.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate structopt;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/client.rs:27:44
[INFO] [stderr]    |
[INFO] [stderr] 27 |     -> Result<(Port, Vec<SocketAddr>), Box<Error>>
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Error`
[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/bin/client.rs:38:45
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn run(options : &Options) -> Result<!, Box<Error>> {
[INFO] [stderr]    |                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/bin/server.rs:20:37
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn run(options : Options) -> Result<!, Box<Error>> {
[INFO] [stderr]    |                                     ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/bin/server.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate structopt;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/server.rs:20:44
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn run(options : Options) -> Result<!, Box<Error>> {
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/bin/server.rs:20:37
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn run(options : Options) -> Result<!, Box<Error>> {
[INFO] [stderr]    |                                     ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/bin/server.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate structopt;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/server.rs:20:44
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn run(options : Options) -> Result<!, Box<Error>> {
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `midinet`.
[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 E0658`.
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: could not compile `midinet`.
[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: could not compile `midinet`.
[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 E0658`.
[INFO] [stderr] error: could not compile `midinet`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a5bd9479d30ba6adcabf5efe485ff301874b2eb4772cf3218828abc51a122c2b"`
[INFO] running `"docker" "rm" "-f" "a5bd9479d30ba6adcabf5efe485ff301874b2eb4772cf3218828abc51a122c2b"`
[INFO] [stdout] a5bd9479d30ba6adcabf5efe485ff301874b2eb4772cf3218828abc51a122c2b
