[INFO] cloning repository https://github.com/AndrewGaspar/empire
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AndrewGaspar/empire" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrewGaspar%2Fempire", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrewGaspar%2Fempire'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f489a59ad0f0d30ce8cf54110e75d62858ced6f
[INFO] checking AndrewGaspar/empire against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrewGaspar%2Fempire" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AndrewGaspar/empire on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AndrewGaspar/empire
[INFO] finished tweaking git repo https://github.com/AndrewGaspar/empire
[INFO] tweaked toml for git repo https://github.com/AndrewGaspar/empire written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/AndrewGaspar/empire already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/alexcrichton/tokio-process.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a29db1744b850464c3d35d7d24525e07eed06fb655f882e209b60e08f780ab47
[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" "a29db1744b850464c3d35d7d24525e07eed06fb655f882e209b60e08f780ab47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a29db1744b850464c3d35d7d24525e07eed06fb655f882e209b60e08f780ab47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a29db1744b850464c3d35d7d24525e07eed06fb655f882e209b60e08f780ab47", kill_on_drop: false }`
[INFO] [stdout] a29db1744b850464c3d35d7d24525e07eed06fb655f882e209b60e08f780ab47
[INFO] running `Command { std: "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" "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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f8155e25a0ed211b6b392ca58af9214c483c2220733b5b0e321aa9214871579
[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" "5f8155e25a0ed211b6b392ca58af9214c483c2220733b5b0e321aa9214871579", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking futures v0.1.23
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking custom_derive v0.1.7
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[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking log v0.4.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking parking_lot_core v0.2.14
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[INFO] [stderr]     Checking tokio-executor v0.1.4
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking tokio-threadpool v0.1.6
[INFO] [stderr]     Checking tokio-current-thread v0.1.1
[INFO] [stderr]     Checking tokio-timer v0.2.6
[INFO] [stderr]     Checking tokio-reactor v0.1.4
[INFO] [stderr]     Checking tokio-codec v0.1.0
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[INFO] [stderr]     Checking tokio-signal v0.2.2
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking tokio-process v0.2.2 (https://github.com/alexcrichton/tokio-process.git#9b7667b7)
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]     Checking empire v0.1.0 (/opt/rustwide/workdir/empire)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> empire/src/error.rs:19:45
[INFO] [stdout]    |
[INFO] [stdout] 19 |             &Error::IoError(ref err) => err.description(),
[INFO] [stdout]    |                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> empire/src/error.rs:20:50
[INFO] [stdout]    |
[INFO] [stdout] 20 |             &Error::TokioIoError(ref err) => err.description(),
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection`
[INFO] [stdout]   --> empire/src/port.rs:18:27
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn process_new_connection(connection: TcpStream) -> impl Future<Item = (), Error = ()> {
[INFO] [stdout]    |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> empire/src/error.rs:19:45
[INFO] [stdout]    |
[INFO] [stdout] 19 |             &Error::IoError(ref err) => err.description(),
[INFO] [stdout]    |                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> empire/src/error.rs:20:50
[INFO] [stdout]    |
[INFO] [stdout] 20 |             &Error::TokioIoError(ref err) => err.description(),
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection`
[INFO] [stdout]   --> empire/src/port.rs:18:27
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn process_new_connection(connection: TcpStream) -> impl Future<Item = (), Error = ()> {
[INFO] [stdout]    |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `child_commands`
[INFO] [stdout]   --> empire/src/comm.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     child_commands: Vec<Command>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `universe`
[INFO] [stdout]    --> empire/src/comm.rs:120:19
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub(crate) fn universe(&self) -> Arc<RwLock<Universe>> {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `comm_parent`
[INFO] [stdout]   --> empire/src/universe.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     comm_parent: Option<CommRegistration>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `child_commands`
[INFO] [stdout]   --> empire/src/comm.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     child_commands: Vec<Command>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `universe`
[INFO] [stdout]    --> empire/src/comm.rs:120:19
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub(crate) fn universe(&self) -> Arc<RwLock<Universe>> {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `comm_parent`
[INFO] [stdout]   --> empire/src/universe.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     comm_parent: Option<CommRegistration>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking libempire v0.1.0 (/opt/rustwide/workdir/libempire)
[INFO] [stderr]     Checking mpiexec v0.1.0 (/opt/rustwide/workdir/mpiexec)
[INFO] [stdout] warning: unused import: `Comm`
[INFO] [stdout]  --> mpiexec/src/main.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use empire::{comm, Comm};
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Comm`
[INFO] [stdout]  --> mpiexec/src/main.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use empire::{comm, Comm};
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comm`
[INFO] [stdout]   --> mpiexec/src/main.rs:78:49
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let empire::comm::SpawnMultipleResult { comm, results } = locked
[INFO] [stdout]    |                                                 ^^^^ help: try ignoring the field: `comm: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> libempire/src/comm.rs:29:39
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub extern "C" fn MPI_Comm_get_parent(parent: *mut MPI_Comm) -> Error {
[INFO] [stdout]    |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comm`
[INFO] [stdout]   --> mpiexec/src/main.rs:78:49
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let empire::comm::SpawnMultipleResult { comm, results } = locked
[INFO] [stdout]    |                                                 ^^^^ help: try ignoring the field: `comm: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> libempire/src/comm.rs:29:39
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub extern "C" fn MPI_Comm_get_parent(parent: *mut MPI_Comm) -> Error {
[INFO] [stdout]    |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.79s
[INFO] running `Command { std: "docker" "inspect" "5f8155e25a0ed211b6b392ca58af9214c483c2220733b5b0e321aa9214871579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f8155e25a0ed211b6b392ca58af9214c483c2220733b5b0e321aa9214871579", kill_on_drop: false }`
[INFO] [stdout] 5f8155e25a0ed211b6b392ca58af9214c483c2220733b5b0e321aa9214871579