[INFO] cloning repository https://github.com/sebglazebrook/ping-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sebglazebrook/ping-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebglazebrook%2Fping-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebglazebrook%2Fping-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4208ffff37cdfcdf8671ef369f10e4d498c79b8
[INFO] documenting sebglazebrook/ping-rs against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebglazebrook%2Fping-rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sebglazebrook/ping-rs on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sebglazebrook/ping-rs
[INFO] finished tweaking git repo https://github.com/sebglazebrook/ping-rs
[INFO] tweaked toml for git repo https://github.com/sebglazebrook/ping-rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/sebglazebrook/ping-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_datalink v0.20.0
[INFO] [stderr]   Downloaded pnet_base v0.20.0
[INFO] [stderr]   Downloaded pnet_transport v0.20.0
[INFO] [stderr]   Downloaded ipnetwork v0.12.7
[INFO] [stderr]   Downloaded pnet_sys v0.20.0
[INFO] [stderr]   Downloaded pnet_packet v0.20.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.20.0
[INFO] [stderr]   Downloaded pnet v0.20.0
[INFO] [stderr]   Downloaded pnet_macros v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07475a8628f4a8248d523efa632569e38b66fe09bbce7f0950d2f9ab3e7fa7c7
[INFO] running `Command { std: "docker" "start" "-a" "07475a8628f4a8248d523efa632569e38b66fe09bbce7f0950d2f9ab3e7fa7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07475a8628f4a8248d523efa632569e38b66fe09bbce7f0950d2f9ab3e7fa7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07475a8628f4a8248d523efa632569e38b66fe09bbce7f0950d2f9ab3e7fa7c7", kill_on_drop: false }`
[INFO] [stdout] 07475a8628f4a8248d523efa632569e38b66fe09bbce7f0950d2f9ab3e7fa7c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c67e3ddc1c460de2ba1fdcd6c53ead96179f38b8affe35d44cbbcddf96bc0eaf
[INFO] running `Command { std: "docker" "start" "-a" "c67e3ddc1c460de2ba1fdcd6c53ead96179f38b8affe35d44cbbcddf96bc0eaf", 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] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking pnet_base v0.20.0
[INFO] [stderr]     Checking ipnetwork v0.12.7
[INFO] [stderr]    Compiling pnet v0.20.0
[INFO] [stderr]     Checking pnet_sys v0.20.0
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]     Checking pnet_macros_support v0.20.0
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]     Checking pnet_datalink v0.20.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling regex v0.2.6
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.20.0
[INFO] [stderr]    Compiling pnet_packet v0.20.0
[INFO] [stderr]     Checking pnet_transport v0.20.0
[INFO] [stderr]     Checking ping-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting ping-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/ping/network_layer.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 |     transmitter: Box<datalink::DataLinkSender>,
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn datalink::DataLinkSender`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/ping/network_layer.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 |     receiver: Box<datalink::DataLinkReceiver>,
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn datalink::DataLinkReceiver`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ping/network_layer.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let (mut tx, mut rx) = match datalink::channel(&interface, datalink::Config::default()) {
[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/ping/network_layer.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let (mut tx, mut rx) = match datalink::channel(&interface, datalink::Config::default()) {
[INFO] [stdout]    |                      ----^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `interface`
[INFO] [stdout]  --> src/ping/network_layer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     interface: datalink::NetworkInterface,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `receiver`
[INFO] [stdout]  --> src/ping/network_layer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     receiver: Box<datalink::DataLinkReceiver>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: literal out of range for `u8`
[INFO] [stdout]   --> src/ping/ip_header.rs:31:22
[INFO] [stdout]    |
[INFO] [stdout] 31 |             version: 0x0800, // TODO correct value ??
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(overflowing_literals)]` on by default
[INFO] [stdout]    = note: the literal `0x0800` (decimal `2048`) does not fit into the type `u8` and will become `0u8`
[INFO] [stdout]    = help: consider using the type `u16` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ping/ip_header.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         header_checksum.write_u16::<BigEndian>(self.header_checksum);
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ping-rs` due to 2 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c67e3ddc1c460de2ba1fdcd6c53ead96179f38b8affe35d44cbbcddf96bc0eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c67e3ddc1c460de2ba1fdcd6c53ead96179f38b8affe35d44cbbcddf96bc0eaf", kill_on_drop: false }`
[INFO] [stdout] c67e3ddc1c460de2ba1fdcd6c53ead96179f38b8affe35d44cbbcddf96bc0eaf
