[INFO] updating cached repository https://github.com/hnkz/minitcp
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 2ad7c376c70c0fb81d3f283b85c6413f3eaf4003
[INFO] testing hnkz/minitcp against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhnkz%2Fminitcp" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hnkz/minitcp on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/hnkz/minitcp
[INFO] finished tweaking git repo https://github.com/hnkz/minitcp
[INFO] tweaked toml for git repo https://github.com/hnkz/minitcp written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/hnkz/minitcp already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] b35e0b8239b92ae339ae4133c2bca61b782c5138331511afe1341f791cbd8491
[INFO] running `"docker" "start" "-a" "b35e0b8239b92ae339ae4133c2bca61b782c5138331511afe1341f791cbd8491"`
[INFO] [stderr]    Compiling microps_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::convert::TryFrom`
[INFO] [stderr]  --> src/protocol.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::convert::TryFrom;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ioctl`
[INFO] [stderr]  --> src/raw.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     ioctl,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::raw::SocDevice`
[INFO] [stderr]  --> src/ethernet.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::raw::SocDevice;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::ethernet::MacAddr`
[INFO] [stderr]  --> src/ip.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use super::ethernet::MacAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::ethernet::MacAddr`
[INFO] [stderr]  --> src/udp.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::ethernet::MacAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::ip::IpAddr`
[INFO] [stderr]  --> src/udp.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use super::ip::IpAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/ip.rs:94:31
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn from_slice(buf: &[u8], size:usize) -> Result<Self, String> {
[INFO] [stderr]    |                               ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]    --> src/ip.rs:215:31
[INFO] [stderr]     |
[INFO] [stderr] 215 |     fn from_slice(buf: &[u8], size: usize) -> Result<Ip, String> {
[INFO] [stderr]     |                               ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]   --> src/arp.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |             op => {
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sum_end`
[INFO] [stderr]   --> src/udp.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let sum_end = sum_start + 2;
[INFO] [stderr]    |             ^^^^^^^ help: consider prefixing with an underscore: `_sum_end`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let mut vhl: u8 = buf[vhl_start];
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:133:13
[INFO] [stderr]     |
[INFO] [stderr] 133 |         let mut tos: u8 = buf[tos_start];
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |         let mut len: u16 = ((buf[len_start] as i16) << 8) as u16 + (buf[len_start+1] as u16);
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |         let mut id: u16 = ((buf[id_start] as i16) << 8) as u16 + (buf[id_start+1] as u16);
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let mut offset: u16 = ((buf[offset_start] as i16) << 8) as u16 + (buf[offset_start+1] as u16);
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let mut ttl: u8 = buf[ttl_start];
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:152:13
[INFO] [stderr]     |
[INFO] [stderr] 152 |         let mut protocol: IpProtocolType = match IpProtocolType::convert_from_u8(buf[protocol_start]) {
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:159:13
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let mut sum: u16 = ((buf[sum_start] as i16) << 8) as u16 + (buf[sum_end] as u16);
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/arp.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let mut hrd: u16 = ((buf[hrd_start] as i16) << 8) as u16 + (buf[hrd_start+1] as u16);
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/arp.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let mut pro: u16 = ((buf[pro_start] as i16) << 8) as u16 + (buf[pro_start+1] as u16);
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/arp.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let mut hln: u8 = buf[hln_start];
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/arp.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let mut pln: u8 = buf[pln_start];
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/udp.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut sport: u16 = ((buf[sport_start] as i16) << 8) as u16 + (buf[sport_start+1] as u16);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/udp.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let mut dport: u16 = ((buf[dport_start] as i16) << 8) as u16 + (buf[dport_start+1] as u16);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/udp.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let mut len: u16 = ((buf[len_start] as i16) << 8) as u16 + (buf[len_start+1] as u16);
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/udp.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut sum: u16 = ((buf[sum_start] as i16) << 8) as u16 + (buf[sum_start+1] as u16);
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TRL_SIZE`
[INFO] [stderr]   --> src/ethernet.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const TRL_SIZE: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `FRAME_SIZE_MIN`
[INFO] [stderr]   --> src/ethernet.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const FRAME_SIZE_MIN: usize = 64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PAYLOAD_SIZE_MIN`
[INFO] [stderr]   --> src/ethernet.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const PAYLOAD_SIZE_MIN: usize = 46;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PAYLOAD_SIZE_MAX`
[INFO] [stderr]   --> src/ethernet.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | const PAYLOAD_SIZE_MAX: usize = 1500;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `VERSION_IPV4`
[INFO] [stderr]   --> src/ip.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const VERSION_IPV4: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HDR_SIZE_MIN`
[INFO] [stderr]   --> src/ip.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const HDR_SIZE_MIN: usize = 20;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DATA_SIZE_MAX`
[INFO] [stderr]   --> src/ip.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const DATA_SIZE_MAX: usize = 65535;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid_check_sum`
[INFO] [stderr]   --> src/ip.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn is_valid_check_sum(&self, buf: &[u8]) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HRD_ETHERNET`
[INFO] [stderr]  --> src/arp.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const HRD_ETHERNET: u16 = 0x0001;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `EtherHdr`, `EtherType`
[INFO] [stderr]  --> src/main.rs:5:47
[INFO] [stderr]   |
[INFO] [stderr] 5 | use microps_rust::ethernet::{ EthernetDriver, EtherType, EtherHdr };
[INFO] [stderr]   |                                               ^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::io;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `microps_rust::protocol::Header`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use microps_rust::protocol::Header;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/main.rs:65:21
[INFO] [stderr]    |
[INFO] [stderr] 65 |                 Err(err) => {
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/main.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |             Err(err) => {
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dev`
[INFO] [stderr]    --> src/main.rs:252:13
[INFO] [stderr]     |
[INFO] [stderr] 252 |     let mut dev = match SocDevice::open(&*args[1]) {
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_dev`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ether_driver`
[INFO] [stderr]    --> src/main.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |     let mut ether_driver = EthernetDriver::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_ether_driver`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut ip_driver = IpDriver::new();
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:252:9
[INFO] [stderr]     |
[INFO] [stderr] 252 |     let mut dev = match SocDevice::open(&*args[1]) {
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |     let mut ether_driver = EthernetDriver::new();
[INFO] [stderr]     |         ----^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `arp`
[INFO] [stderr]    --> src/main.rs:170:1
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn arp(args: Vec<String>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ethernet`
[INFO] [stderr]    --> src/main.rs:247:1
[INFO] [stderr]     |
[INFO] [stderr] 247 | fn ethernet(args: Vec<String>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rawsock`
[INFO] [stderr]    --> src/main.rs:284:1
[INFO] [stderr]     |
[INFO] [stderr] 284 | fn rawsock(args: Vec<String>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `"docker" "inspect" "b35e0b8239b92ae339ae4133c2bca61b782c5138331511afe1341f791cbd8491"`
[INFO] running `"docker" "rm" "-f" "b35e0b8239b92ae339ae4133c2bca61b782c5138331511afe1341f791cbd8491"`
[INFO] [stdout] b35e0b8239b92ae339ae4133c2bca61b782c5138331511afe1341f791cbd8491
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] f764cbd886981b8d3cfb73bb5f685043d7b742a4d57da857bcca8bf36dddf0d2
[INFO] running `"docker" "start" "-a" "f764cbd886981b8d3cfb73bb5f685043d7b742a4d57da857bcca8bf36dddf0d2"`
[INFO] [stderr]    Compiling microps_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `EtherHdr`, `EtherType`
[INFO] [stderr]  --> src/main.rs:5:47
[INFO] [stderr]   |
[INFO] [stderr] 5 | use microps_rust::ethernet::{ EthernetDriver, EtherType, EtherHdr };
[INFO] [stderr]   |                                               ^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::io;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::convert::TryFrom`
[INFO] [stderr]  --> src/protocol.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::convert::TryFrom;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ioctl`
[INFO] [stderr]  --> src/raw.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     ioctl,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::raw::SocDevice`
[INFO] [stderr]  --> src/ethernet.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::raw::SocDevice;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::ethernet::MacAddr`
[INFO] [stderr]  --> src/ip.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use super::ethernet::MacAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::ethernet::MacAddr`
[INFO] [stderr]  --> src/udp.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::ethernet::MacAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::ip::IpAddr`
[INFO] [stderr]  --> src/udp.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use super::ip::IpAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `microps_rust::protocol::Header`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use microps_rust::protocol::Header;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/main.rs:65:21
[INFO] [stderr]    |
[INFO] [stderr] 65 |                 Err(err) => {
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/main.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |             Err(err) => {
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dev`
[INFO] [stderr]    --> src/main.rs:252:13
[INFO] [stderr]     |
[INFO] [stderr] 252 |     let mut dev = match SocDevice::open(&*args[1]) {
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_dev`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ether_driver`
[INFO] [stderr]    --> src/main.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |     let mut ether_driver = EthernetDriver::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_ether_driver`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut ip_driver = IpDriver::new();
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:252:9
[INFO] [stderr]     |
[INFO] [stderr] 252 |     let mut dev = match SocDevice::open(&*args[1]) {
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |     let mut ether_driver = EthernetDriver::new();
[INFO] [stderr]     |         ----^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `arp`
[INFO] [stderr]    --> src/main.rs:170:1
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn arp(args: Vec<String>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ethernet`
[INFO] [stderr]    --> src/main.rs:247:1
[INFO] [stderr]     |
[INFO] [stderr] 247 | fn ethernet(args: Vec<String>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rawsock`
[INFO] [stderr]    --> src/main.rs:284:1
[INFO] [stderr]     |
[INFO] [stderr] 284 | fn rawsock(args: Vec<String>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/ip.rs:94:31
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn from_slice(buf: &[u8], size:usize) -> Result<Self, String> {
[INFO] [stderr]    |                               ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]    --> src/ip.rs:215:31
[INFO] [stderr]     |
[INFO] [stderr] 215 |     fn from_slice(buf: &[u8], size: usize) -> Result<Ip, String> {
[INFO] [stderr]     |                               ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]   --> src/arp.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |             op => {
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sum_end`
[INFO] [stderr]   --> src/udp.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let sum_end = sum_start + 2;
[INFO] [stderr]    |             ^^^^^^^ help: consider prefixing with an underscore: `_sum_end`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let mut vhl: u8 = buf[vhl_start];
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:133:13
[INFO] [stderr]     |
[INFO] [stderr] 133 |         let mut tos: u8 = buf[tos_start];
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |         let mut len: u16 = ((buf[len_start] as i16) << 8) as u16 + (buf[len_start+1] as u16);
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |         let mut id: u16 = ((buf[id_start] as i16) << 8) as u16 + (buf[id_start+1] as u16);
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let mut offset: u16 = ((buf[offset_start] as i16) << 8) as u16 + (buf[offset_start+1] as u16);
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let mut ttl: u8 = buf[ttl_start];
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:152:13
[INFO] [stderr]     |
[INFO] [stderr] 152 |         let mut protocol: IpProtocolType = match IpProtocolType::convert_from_u8(buf[protocol_start]) {
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip.rs:159:13
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let mut sum: u16 = ((buf[sum_start] as i16) << 8) as u16 + (buf[sum_end] as u16);
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/arp.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let mut hrd: u16 = ((buf[hrd_start] as i16) << 8) as u16 + (buf[hrd_start+1] as u16);
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/arp.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let mut pro: u16 = ((buf[pro_start] as i16) << 8) as u16 + (buf[pro_start+1] as u16);
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/arp.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let mut hln: u8 = buf[hln_start];
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/arp.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let mut pln: u8 = buf[pln_start];
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/udp.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut sport: u16 = ((buf[sport_start] as i16) << 8) as u16 + (buf[sport_start+1] as u16);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/udp.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let mut dport: u16 = ((buf[dport_start] as i16) << 8) as u16 + (buf[dport_start+1] as u16);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/udp.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let mut len: u16 = ((buf[len_start] as i16) << 8) as u16 + (buf[len_start+1] as u16);
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/udp.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut sum: u16 = ((buf[sum_start] as i16) << 8) as u16 + (buf[sum_start+1] as u16);
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TRL_SIZE`
[INFO] [stderr]   --> src/ethernet.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const TRL_SIZE: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `FRAME_SIZE_MIN`
[INFO] [stderr]   --> src/ethernet.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const FRAME_SIZE_MIN: usize = 64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PAYLOAD_SIZE_MIN`
[INFO] [stderr]   --> src/ethernet.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const PAYLOAD_SIZE_MIN: usize = 46;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PAYLOAD_SIZE_MAX`
[INFO] [stderr]   --> src/ethernet.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | const PAYLOAD_SIZE_MAX: usize = 1500;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `VERSION_IPV4`
[INFO] [stderr]   --> src/ip.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const VERSION_IPV4: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HDR_SIZE_MIN`
[INFO] [stderr]   --> src/ip.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const HDR_SIZE_MIN: usize = 20;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DATA_SIZE_MAX`
[INFO] [stderr]   --> src/ip.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const DATA_SIZE_MAX: usize = 65535;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid_check_sum`
[INFO] [stderr]   --> src/ip.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn is_valid_check_sum(&self, buf: &[u8]) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HRD_ETHERNET`
[INFO] [stderr]  --> src/arp.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const HRD_ETHERNET: u16 = 0x0001;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "f764cbd886981b8d3cfb73bb5f685043d7b742a4d57da857bcca8bf36dddf0d2"`
[INFO] running `"docker" "rm" "-f" "f764cbd886981b8d3cfb73bb5f685043d7b742a4d57da857bcca8bf36dddf0d2"`
[INFO] [stdout] f764cbd886981b8d3cfb73bb5f685043d7b742a4d57da857bcca8bf36dddf0d2
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 450c42ab01396bad1e22f03a667b4e8df3e2b97dce95555652a3197a2a140eae
[INFO] running `"docker" "start" "-a" "450c42ab01396bad1e22f03a667b4e8df3e2b97dce95555652a3197a2a140eae"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/microps_rust-8bb11995e91e5fe9
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/microps_rust-e2241efc78bcb0df
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests microps_rust
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "450c42ab01396bad1e22f03a667b4e8df3e2b97dce95555652a3197a2a140eae"`
[INFO] running `"docker" "rm" "-f" "450c42ab01396bad1e22f03a667b4e8df3e2b97dce95555652a3197a2a140eae"`
[INFO] [stdout] 450c42ab01396bad1e22f03a667b4e8df3e2b97dce95555652a3197a2a140eae