[INFO] cloning repository https://github.com/sonohgong/frisco
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sonohgong/frisco" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsonohgong%2Ffrisco", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsonohgong%2Ffrisco'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4211aaa9d7275b668183ec9b7ad43f7a65403008
[INFO] testing sonohgong/frisco against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsonohgong%2Ffrisco" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sonohgong/frisco
[INFO] finished tweaking git repo https://github.com/sonohgong/frisco
[INFO] tweaked toml for git repo https://github.com/sonohgong/frisco written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sonohgong/frisco on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sonohgong/frisco 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80ddd1eed6d7c39b84e83af7e69dada8e6defe2f448d468ea22b00f342d029f6
[INFO] running `Command { std: "docker" "start" "-a" "80ddd1eed6d7c39b84e83af7e69dada8e6defe2f448d468ea22b00f342d029f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80ddd1eed6d7c39b84e83af7e69dada8e6defe2f448d468ea22b00f342d029f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80ddd1eed6d7c39b84e83af7e69dada8e6defe2f448d468ea22b00f342d029f6", kill_on_drop: false }`
[INFO] [stdout] 80ddd1eed6d7c39b84e83af7e69dada8e6defe2f448d468ea22b00f342d029f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccec5c4e07bfa00727b5e0b98350433cf8f2c95586e9221a94a57a74e7fbbf73
[INFO] running `Command { std: "docker" "start" "-a" "ccec5c4e07bfa00727b5e0b98350433cf8f2c95586e9221a94a57a74e7fbbf73", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling dns-parser v0.8.0
[INFO] [stderr]    Compiling frisco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:119:23
[INFO] [stdout]     |
[INFO] [stdout] 119 |         for answer in packet.answers.first() {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 119 -         for answer in packet.answers.first() {
[INFO] [stdout] 119 +         while let Some(answer) = packet.answers.first() {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 119 -         for answer in packet.answers.first() {
[INFO] [stdout] 119 +         if let Some(answer) = packet.answers.first() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `*mut ifaddrs` does not permit being left uninitialized
[INFO] [stdout]   --> src/interfaces.rs:22:56
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let mut ptr_ifa_head: *mut libc::ifaddrs = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                        |
[INFO] [stdout]    |                                                        this code causes undefined behavior when executed
[INFO] [stdout]    |                                                        help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: raw pointers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/interfaces.rs:61:50
[INFO] [stdout]    |
[INFO] [stdout] 61 | ...                   let bytes: [u8; 4] = mem::transmute(s_addr);
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]    |
[INFO] [stdout] 61 -                             let bytes: [u8; 4] = mem::transmute(s_addr);
[INFO] [stdout] 61 +                             let bytes: [u8; 4] = u32::to_ne_bytes(s_addr);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "ccec5c4e07bfa00727b5e0b98350433cf8f2c95586e9221a94a57a74e7fbbf73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccec5c4e07bfa00727b5e0b98350433cf8f2c95586e9221a94a57a74e7fbbf73", kill_on_drop: false }`
[INFO] [stdout] ccec5c4e07bfa00727b5e0b98350433cf8f2c95586e9221a94a57a74e7fbbf73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3f854920e02a465ed156f08ff832bbd8578391396734e0bd276e43d81ae65f4
[INFO] running `Command { std: "docker" "start" "-a" "b3f854920e02a465ed156f08ff832bbd8578391396734e0bd276e43d81ae65f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling frisco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:119:23
[INFO] [stdout]     |
[INFO] [stdout] 119 |         for answer in packet.answers.first() {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 119 -         for answer in packet.answers.first() {
[INFO] [stdout] 119 +         while let Some(answer) = packet.answers.first() {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 119 -         for answer in packet.answers.first() {
[INFO] [stdout] 119 +         if let Some(answer) = packet.answers.first() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `*mut ifaddrs` does not permit being left uninitialized
[INFO] [stdout]   --> src/interfaces.rs:22:56
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let mut ptr_ifa_head: *mut libc::ifaddrs = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                        |
[INFO] [stdout]    |                                                        this code causes undefined behavior when executed
[INFO] [stdout]    |                                                        help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: raw pointers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/interfaces.rs:61:50
[INFO] [stdout]    |
[INFO] [stdout] 61 | ...                   let bytes: [u8; 4] = mem::transmute(s_addr);
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]    |
[INFO] [stdout] 61 -                             let bytes: [u8; 4] = mem::transmute(s_addr);
[INFO] [stdout] 61 +                             let bytes: [u8; 4] = u32::to_ne_bytes(s_addr);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "b3f854920e02a465ed156f08ff832bbd8578391396734e0bd276e43d81ae65f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3f854920e02a465ed156f08ff832bbd8578391396734e0bd276e43d81ae65f4", kill_on_drop: false }`
[INFO] [stdout] b3f854920e02a465ed156f08ff832bbd8578391396734e0bd276e43d81ae65f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b2821739e4d02803f0451de77ed26066a5bbc4c7617ed34d9ce62b0e53b1c85
[INFO] running `Command { std: "docker" "start" "-a" "1b2821739e4d02803f0451de77ed26066a5bbc4c7617ed34d9ce62b0e53b1c85", kill_on_drop: false }`
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/main.rs:119:23
[INFO] [stderr]     |
[INFO] [stderr] 119 |         for answer in packet.answers.first() {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 119 -         for answer in packet.answers.first() {
[INFO] [stderr] 119 +         while let Some(answer) = packet.answers.first() {
[INFO] [stderr]     |
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 119 -         for answer in packet.answers.first() {
[INFO] [stderr] 119 +         if let Some(answer) = packet.answers.first() {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: the type `*mut ifaddrs` does not permit being left uninitialized
[INFO] [stderr]   --> src/interfaces.rs:22:56
[INFO] [stderr]    |
[INFO] [stderr] 22 |             let mut ptr_ifa_head: *mut libc::ifaddrs = mem::MaybeUninit::uninit().assume_init();
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                                                        |
[INFO] [stderr]    |                                                        this code causes undefined behavior when executed
[INFO] [stderr]    |                                                        help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]    |
[INFO] [stderr]    = note: raw pointers must be initialized
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary transmute
[INFO] [stderr]   --> src/interfaces.rs:61:50
[INFO] [stderr]    |
[INFO] [stderr] 61 | ...                   let bytes: [u8; 4] = mem::transmute(s_addr);
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stderr]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stderr] help: replace this with
[INFO] [stderr]    |
[INFO] [stderr] 61 -                             let bytes: [u8; 4] = mem::transmute(s_addr);
[INFO] [stderr] 61 +                             let bytes: [u8; 4] = u32::to_ne_bytes(s_addr);
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `frisco` (bin "frisco" test) generated 3 warnings (run `cargo fix --bin "frisco" -p frisco --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/frisco-057460556eecd2cd)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b2821739e4d02803f0451de77ed26066a5bbc4c7617ed34d9ce62b0e53b1c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b2821739e4d02803f0451de77ed26066a5bbc4c7617ed34d9ce62b0e53b1c85", kill_on_drop: false }`
[INFO] [stdout] 1b2821739e4d02803f0451de77ed26066a5bbc4c7617ed34d9ce62b0e53b1c85
