[INFO] fetching crate xbnet 1.1.0...
[INFO] building xbnet-1.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate xbnet 1.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate xbnet 1.1.0
[INFO] finished tweaking crates.io crate xbnet 1.1.0
[INFO] tweaked toml for crates.io crate xbnet 1.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xbnet 1.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xbnet 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.60
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded libudev v0.2.0
[INFO] [stderr]   Downloaded serialport v3.3.0
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[INFO] [stderr]   Downloaded structopt v0.3.18
[INFO] [stderr]   Downloaded hex v0.4.2
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded tun-tap v0.1.2
[INFO] [stderr]   Downloaded etherparse v0.9.0
[INFO] [stderr]   Downloaded chrono v0.4.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81cd350d2a9829e50e12d99aab2ce5701b019ad3c715eaedfdccd48bb1b143b4
[INFO] running `Command { std: "docker" "start" "-a" "81cd350d2a9829e50e12d99aab2ce5701b019ad3c715eaedfdccd48bb1b143b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81cd350d2a9829e50e12d99aab2ce5701b019ad3c715eaedfdccd48bb1b143b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81cd350d2a9829e50e12d99aab2ce5701b019ad3c715eaedfdccd48bb1b143b4", kill_on_drop: false }`
[INFO] [stdout] 81cd350d2a9829e50e12d99aab2ce5701b019ad3c715eaedfdccd48bb1b143b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adea0f331beecda8efe419c5ace73045b13ba7dcb5c918c84bf4c23481ef1b6a
[INFO] running `Command { std: "docker" "start" "-a" "adea0f331beecda8efe419c5ace73045b13ba7dcb5c918c84bf4c23481ef1b6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.22
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling format_escape_default v0.1.1
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling etherparse v0.9.0
[INFO] [stderr]    Compiling tun-tap v0.1.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling chrono v0.4.16
[INFO] [stderr]    Compiling simplelog v0.7.6
[INFO] [stderr]    Compiling serialport v3.3.0
[INFO] [stderr]    Compiling structopt-derive v0.4.11
[INFO] [stderr]    Compiling structopt v0.3.18
[INFO] [stderr]    Compiling xbnet v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `log::*`
[INFO] [stdout]   --> src/xbpacket.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use log::*;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/xbpacket.rs:201:23
[INFO] [stdout]     |
[INFO] [stdout] 201 |             .map_err(|e| String::from("More than 255 chunks to transmit"))?;
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `myxbmac` and `name` are never read
[INFO] [stdout]   --> src/tap.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct XBTap {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 41 |     pub myxbmac: u64,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 42 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XBTap` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `showmac` is never used
[INFO] [stdout]    --> src/tap.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub fn showmac(mac: &[u8; 6]) -> String {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `myxbmac` and `name` are never read
[INFO] [stdout]   --> src/tun.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct XBTun {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 41 |     pub myxbmac: u64,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 42 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XBTun` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mkerror` is never used
[INFO] [stdout]   --> src/xb.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn mkerror(msg: &str) -> Error {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assert_response` is never used
[INFO] [stdout]   --> src/xb.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn assert_response(resp: String, expected: String) -> io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `U16` is never constructed
[INFO] [stdout]   --> src/xbpacket.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum XBDestAddr {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 29 |     /// A 16-bit destination address.  When a 64-bit address is given, this is transmitted as 0xFFFE.
[INFO] [stdout] 30 |     U16(u16),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XBDestAddr` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mac64to48` is never used
[INFO] [stdout]    --> src/xbpacket.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub fn mac64to48(mac64: u64) -> [u8; 6] {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mac48to64` is never used
[INFO] [stdout]    --> src/xbpacket.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub fn mac48to64(mac48: &[u8; 6], pattern64: u64) -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExtTxStatus` is never constructed
[INFO] [stdout]    --> src/xbpacket.rs:243:12
[INFO] [stdout]     |
[INFO] [stdout] 243 | pub struct ExtTxStatus {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `discardframes` is never used
[INFO] [stdout]    --> src/xbrx.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 131 | impl XBReframer {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 157 |     pub fn discardframes(&mut self, ser: &mut XBSerReader) -> () {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.58s
[INFO] running `Command { std: "docker" "inspect" "adea0f331beecda8efe419c5ace73045b13ba7dcb5c918c84bf4c23481ef1b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adea0f331beecda8efe419c5ace73045b13ba7dcb5c918c84bf4c23481ef1b6a", kill_on_drop: false }`
[INFO] [stdout] adea0f331beecda8efe419c5ace73045b13ba7dcb5c918c84bf4c23481ef1b6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b0c385116733251bb92bd6677ba0a2661c1e299bf91920b31620f51c99d6876
[INFO] running `Command { std: "docker" "start" "-a" "9b0c385116733251bb92bd6677ba0a2661c1e299bf91920b31620f51c99d6876", kill_on_drop: false }`
[INFO] [stderr]    Compiling xbnet v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `log::*`
[INFO] [stdout]   --> src/xbpacket.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use log::*;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/xbpacket.rs:201:23
[INFO] [stdout]     |
[INFO] [stdout] 201 |             .map_err(|e| String::from("More than 255 chunks to transmit"))?;
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `myxbmac` and `name` are never read
[INFO] [stdout]   --> src/tap.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct XBTap {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 41 |     pub myxbmac: u64,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 42 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XBTap` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `showmac` is never used
[INFO] [stdout]    --> src/tap.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub fn showmac(mac: &[u8; 6]) -> String {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `myxbmac` and `name` are never read
[INFO] [stdout]   --> src/tun.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct XBTun {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 41 |     pub myxbmac: u64,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 42 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XBTun` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mkerror` is never used
[INFO] [stdout]   --> src/xb.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn mkerror(msg: &str) -> Error {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assert_response` is never used
[INFO] [stdout]   --> src/xb.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn assert_response(resp: String, expected: String) -> io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `U16` is never constructed
[INFO] [stdout]   --> src/xbpacket.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum XBDestAddr {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 29 |     /// A 16-bit destination address.  When a 64-bit address is given, this is transmitted as 0xFFFE.
[INFO] [stdout] 30 |     U16(u16),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `XBDestAddr` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mac64to48` is never used
[INFO] [stdout]    --> src/xbpacket.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub fn mac64to48(mac64: u64) -> [u8; 6] {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mac48to64` is never used
[INFO] [stdout]    --> src/xbpacket.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub fn mac48to64(mac48: &[u8; 6], pattern64: u64) -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExtTxStatus` is never constructed
[INFO] [stdout]    --> src/xbpacket.rs:243:12
[INFO] [stdout]     |
[INFO] [stdout] 243 | pub struct ExtTxStatus {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `discardframes` is never used
[INFO] [stdout]    --> src/xbrx.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 131 | impl XBReframer {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 157 |     pub fn discardframes(&mut self, ser: &mut XBSerReader) -> () {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "9b0c385116733251bb92bd6677ba0a2661c1e299bf91920b31620f51c99d6876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b0c385116733251bb92bd6677ba0a2661c1e299bf91920b31620f51c99d6876", kill_on_drop: false }`
[INFO] [stdout] 9b0c385116733251bb92bd6677ba0a2661c1e299bf91920b31620f51c99d6876