[INFO] cloning repository https://github.com/redox-os/netutils
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redox-os/netutils" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fnetutils", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fnetutils'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85c159fdd8bbdc562afb5041ae40dde566bed538
[INFO] checking redox-os/netutils against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fnetutils" "/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/redox-os/netutils on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/redox-os/netutils
[INFO] finished tweaking git repo https://github.com/redox-os/netutils
[INFO] tweaked toml for git repo https://github.com/redox-os/netutils written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/redox-os/netutils already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/arg-parser.git`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/libextra.git`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/mio`
[INFO] [stderr]     Updating git repository `https://github.com/willem66745/ntpclient-rust`
[INFO] [stderr]     Updating git repository `https://github.com/a8m/pb`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/event.git`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/tokio`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/mio-uds`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "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-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 163d630cc20a6a53f3171a8e2ef89d71757d863fd50d4db5d04ce66a7a1140ae
[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" "163d630cc20a6a53f3171a8e2ef89d71757d863fd50d4db5d04ce66a7a1140ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "163d630cc20a6a53f3171a8e2ef89d71757d863fd50d4db5d04ce66a7a1140ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "163d630cc20a6a53f3171a8e2ef89d71757d863fd50d4db5d04ce66a7a1140ae", kill_on_drop: false }`
[INFO] [stdout] 163d630cc20a6a53f3171a8e2ef89d71757d863fd50d4db5d04ce66a7a1140ae
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b39171be83a5c05c66120c08f56e5f43adecd2a6421f42835eb0682ea048a989
[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" "b39171be83a5c05c66120c08f56e5f43adecd2a6421f42835eb0682ea048a989", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
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[INFO] [stderr]     Checking stable_deref_trait v1.2.0
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[INFO] [stderr]     Checking extra v0.1.0 (https://gitlab.redox-os.org/redox-os/libextra.git#0b50f3f2)
[INFO] [stderr]     Checking tokio-executor v0.1.5 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
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[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
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[INFO] [stderr]     Checking tokio-current-thread v0.1.4 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
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[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking tokio-timer v0.2.8 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
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[INFO] [stderr]     Checking ntpclient v0.0.1 (https://github.com/willem66745/ntpclient-rust#7e3bdf60)
[INFO] [stderr]     Checking tokio-io v0.1.10 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr]     Checking pbr v1.0.3 (https://github.com/a8m/pb#591917e9)
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[INFO] [stderr]     Checking tokio-threadpool v0.1.9 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr]     Checking mio-uds v0.6.7 (https://gitlab.redox-os.org/redox-os/mio-uds#22580ca3)
[INFO] [stderr]     Checking tokio-codec v0.1.1 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-reactor v0.1.7 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr]     Checking tokio-fs v0.1.4 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr]     Checking tokio-udp v0.1.3 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr]     Checking tokio-tcp v0.1.2 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr]     Checking tokio-uds v0.2.4 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr]     Checking tokio v0.1.13 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr]     Checking webpki v0.18.1
[INFO] [stderr]     Checking sct v0.4.0
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[INFO] [stderr]     Checking rustls v0.13.1
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[INFO] [stderr]     Checking netutils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nc/modes.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let stream_read = try!(TcpStream::connect(host)
[INFO] [stdout]    |                       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nc/modes.rs:70:24
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let stream_write = try!(stream_read.try_clone()
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nc/modes.rs:82:20
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let listener = try!(TcpListener::bind(host)
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nc/modes.rs:84:37
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let (stream_read, socketaddr) = try!(listener.accept()
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nc/modes.rs:86:24
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let stream_write = try!(stream_read.try_clone()
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nc/modes.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let socket = try!(UdpSocket::bind("localhost:30000")
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nc/modes.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     try!(socket.connect(host)
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nc/modes.rs:111:18
[INFO] [stdout]     |
[INFO] [stdout] 111 |     let socket = try!(UdpSocket::bind(host)
[INFO] [stdout]     |                  ^^^
[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]   --> src/whois/main.rs:43:76
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         format!("failed to parse '{}', {}", port_string, e.description()).as_str(),
[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]   --> src/whois/main.rs:68:65
[INFO] [stdout]    |
[INFO] [stdout] 68 |                         format!("Can't send to {}, {}", host, e.description()).as_str(),
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^
[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]    --> src/whois/main.rs:108:47
[INFO] [stdout]     |
[INFO] [stdout] 108 | ...                   e.description()
[INFO] [stdout]     |                         ^^^^^^^^^^^
[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]    --> src/whois/main.rs:118:75
[INFO] [stdout]     |
[INFO] [stdout] 118 | ...                   format!("Can't read from {}, {}", host, e.description()).as_str(),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^
[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]   --> src/whois/main.rs:43:76
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         format!("failed to parse '{}', {}", port_string, e.description()).as_str(),
[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]    --> src/whois/main.rs:128:70
[INFO] [stdout]     |
[INFO] [stdout] 128 |                     format!("Failed to connect to '{}', {}", host, e.description()).as_str(),
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^
[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]   --> src/whois/main.rs:68:65
[INFO] [stdout]    |
[INFO] [stdout] 68 |                         format!("Can't send to {}, {}", host, e.description()).as_str(),
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/irc/main.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let file = try!(TcpStream::connect(addr));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/telnetd/main.rs:166:51
[INFO] [stdout]     |
[INFO] [stdout] 166 |                     let _ = term_stderr.write(err.description().as_bytes());
[INFO] [stdout]     |                                                   ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/telnetd/main.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[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]    --> src/whois/main.rs:108:47
[INFO] [stdout]     |
[INFO] [stdout] 108 | ...                   e.description()
[INFO] [stdout]     |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[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]    --> src/whois/main.rs:118:75
[INFO] [stdout]     |
[INFO] [stdout] 118 | ...                   format!("Can't read from {}, {}", host, e.description()).as_str(),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^
[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]    --> src/whois/main.rs:128:70
[INFO] [stdout]     |
[INFO] [stdout] 128 |                     format!("Failed to connect to '{}', {}", host, e.description()).as_str(),
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `netutils`.
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/telnetd/main.rs:166:51
[INFO] [stdout]     |
[INFO] [stdout] 166 |                     let _ = term_stderr.write(err.description().as_bytes());
[INFO] [stdout]     |                                                   ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/telnetd/main.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/irc/main.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let file = try!(TcpStream::connect(addr));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `str`
[INFO] [stdout]  --> src/httpd/main.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{env, str};
[INFO] [stdout]   |                ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/httpd/main.rs:106:29
[INFO] [stdout]     |
[INFO] [stdout] 106 |         full_path.push(path.trim_left_matches('/'));
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dhcpd/main.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |         for (s, mut d) in [53, 1, 1, 255].iter().zip(discover.options.iter_mut()) {
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dhcpd/main.rs:319:17
[INFO] [stdout]     |
[INFO] [stdout] 319 |         for (s, mut d) in [
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/ping/main.rs:349:16
[INFO] [stdout]     |
[INFO] [stdout] 349 |         flags: 0,
[INFO] [stdout]     |                ^ expected struct `syscall::flag::EventFlags`, found integer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/httpd/main.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |                         write!(res.start().unwrap(), "{}", err);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dhcpd/main.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |         for (s, mut d) in [53, 1, 1, 255].iter().zip(discover.options.iter_mut()) {
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dhcpd/main.rs:319:17
[INFO] [stdout]     |
[INFO] [stdout] 319 |         for (s, mut d) in [
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/irc/main.rs:196:33
[INFO] [stdout]     |
[INFO] [stdout] 196 | ...                   let mut channels_lock = channels.lock().unwrap();
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/irc/main.rs:251:33
[INFO] [stdout]     |
[INFO] [stdout] 251 | ...                   let mut channels_lock = channels.lock().unwrap();
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `channels_lock` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> src/irc/main.rs:210:57
[INFO] [stdout]     |
[INFO] [stdout] 210 | ...                   channels_lock.1 %= Wrapping(channels_lock.0.len());
[INFO] [stdout]     |                       ----------------------------^^^^^^^^^^^^^---------
[INFO] [stdout]     |                       |                           |
[INFO] [stdout]     |                       |                           immutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `channels_lock` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> src/irc/main.rs:219:57
[INFO] [stdout]     |
[INFO] [stdout] 219 | ...                   channels_lock.1 %= Wrapping(channels_lock.0.len());       
[INFO] [stdout]     |                       ----------------------------^^^^^^^^^^^^^---------
[INFO] [stdout]     |                       |                           |
[INFO] [stdout]     |                       |                           immutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `channels_lock` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> src/irc/main.rs:239:69
[INFO] [stdout]     |
[INFO] [stdout] 239 | ...                   channels_lock.1 %= Wrapping(channels_lock.0.len());       
[INFO] [stdout]     |                       ----------------------------^^^^^^^^^^^^^---------
[INFO] [stdout]     |                       |                           |
[INFO] [stdout]     |                       |                           immutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `channels_lock` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> src/irc/main.rs:314:65
[INFO] [stdout]     |
[INFO] [stdout] 314 | ...                   channels_lock.1 %= Wrapping(channels_lock.0.len());       
[INFO] [stdout]     |                       ----------------------------^^^^^^^^^^^^^---------
[INFO] [stdout]     |                       |                           |
[INFO] [stdout]     |                       |                           immutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/irc/main.rs:196:33
[INFO] [stdout]     |
[INFO] [stdout] 196 | ...                   let mut channels_lock = channels.lock().unwrap();
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/irc/main.rs:251:33
[INFO] [stdout]     |
[INFO] [stdout] 251 | ...                   let mut channels_lock = channels.lock().unwrap();
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `channels_lock` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> src/irc/main.rs:210:57
[INFO] [stdout]     |
[INFO] [stdout] 210 | ...                   channels_lock.1 %= Wrapping(channels_lock.0.len());
[INFO] [stdout]     |                       ----------------------------^^^^^^^^^^^^^---------
[INFO] [stdout]     |                       |                           |
[INFO] [stdout]     |                       |                           immutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `channels_lock` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> src/irc/main.rs:219:57
[INFO] [stdout]     |
[INFO] [stdout] 219 | ...                   channels_lock.1 %= Wrapping(channels_lock.0.len());       
[INFO] [stdout]     |                       ----------------------------^^^^^^^^^^^^^---------
[INFO] [stdout]     |                       |                           |
[INFO] [stdout]     |                       |                           immutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `channels_lock` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> src/irc/main.rs:239:69
[INFO] [stdout]     |
[INFO] [stdout] 239 | ...                   channels_lock.1 %= Wrapping(channels_lock.0.len());       
[INFO] [stdout]     |                       ----------------------------^^^^^^^^^^^^^---------
[INFO] [stdout]     |                       |                           |
[INFO] [stdout]     |                       |                           immutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `channels_lock` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> src/irc/main.rs:314:65
[INFO] [stdout]     |
[INFO] [stdout] 314 | ...                   channels_lock.1 %= Wrapping(channels_lock.0.len());       
[INFO] [stdout]     |                       ----------------------------^^^^^^^^^^^^^---------
[INFO] [stdout]     |                       |                           |
[INFO] [stdout]     |                       |                           immutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow occurs here
[INFO] [stdout]     |                       mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/irc/main.rs:555:13
[INFO] [stdout]     |
[INFO] [stdout] 555 |         let mut channel: Option<&mut Channel> = channels_lock.0.get_mut(channel_number);
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/irc/main.rs:557:17
[INFO] [stdout]     |
[INFO] [stdout] 557 |             let mut channel: &mut Channel = channel.unwrap();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/irc/main.rs:555:13
[INFO] [stdout]     |
[INFO] [stdout] 555 |         let mut channel: Option<&mut Channel> = channels_lock.0.get_mut(channel_number);
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/irc/main.rs:557:17
[INFO] [stdout]     |
[INFO] [stdout] 557 |             let mut channel: &mut Channel = channel.unwrap();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b39171be83a5c05c66120c08f56e5f43adecd2a6421f42835eb0682ea048a989", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b39171be83a5c05c66120c08f56e5f43adecd2a6421f42835eb0682ea048a989", kill_on_drop: false }`
[INFO] [stdout] b39171be83a5c05c66120c08f56e5f43adecd2a6421f42835eb0682ea048a989
