[INFO] cloning repository https://github.com/chuanhao01/Nust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chuanhao01/Nust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchuanhao01%2FNust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchuanhao01%2FNust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 566b41e07d6c0efb4aea1d2a2156979afcdc0a1b
[INFO] checking chuanhao01/Nust against c397dae808f70caebab1fc4e11b3edf7e59f58c7 for pr-158759-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchuanhao01%2FNust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chuanhao01/Nust
[INFO] finished tweaking git repo https://github.com/chuanhao01/Nust
[INFO] tweaked toml for git repo https://github.com/chuanhao01/Nust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chuanhao01/Nust on toolchain c397dae808f70caebab1fc4e11b3edf7e59f58c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c397dae808f70caebab1fc4e11b3edf7e59f58c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chuanhao01/Nust 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" "+c397dae808f70caebab1fc4e11b3edf7e59f58c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tun-tap v0.1.4
[INFO] [stderr]   Downloaded tokio-executor v0.1.10
[INFO] [stderr]   Downloaded tokio-core v0.1.18
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[INFO] [stderr]   Downloaded tokio-reactor v0.1.12
[INFO] [stderr]   Downloaded crossbeam-epoch v0.8.2
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[INFO] [stderr]   Downloaded tokio-threadpool v0.1.18
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[INFO] [stderr]   Downloaded cc v1.2.16
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[INFO] [stderr]   Downloaded libc v0.2.170
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 750c896e22c2473e6f4c9d62e7a31e7ae84af1bad08d65861571025aa76f5dcc
[INFO] running `Command { std: "docker" "start" "750c896e22c2473e6f4c9d62e7a31e7ae84af1bad08d65861571025aa76f5dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "750c896e22c2473e6f4c9d62e7a31e7ae84af1bad08d65861571025aa76f5dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "750c896e22c2473e6f4c9d62e7a31e7ae84af1bad08d65861571025aa76f5dcc" "/opt/rustwide/cargo-home/bin/cargo" "+c397dae808f70caebab1fc4e11b3edf7e59f58c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "750c896e22c2473e6f4c9d62e7a31e7ae84af1bad08d65861571025aa76f5dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "750c896e22c2473e6f4c9d62e7a31e7ae84af1bad08d65861571025aa76f5dcc" "/opt/rustwide/cargo-home/bin/cargo" "+c397dae808f70caebab1fc4e11b3edf7e59f58c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking log v0.4.26
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cc v1.2.16
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling tun-tap v0.1.4
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.18
[INFO] [stderr]     Checking nust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/protocol.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |             _ => panic!("Not implemented yet"),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/protocol.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             Self::ICMP(icmp) => icmp.to_byte_buffer(),
[INFO] [stdout]    |             ---------------- matches some of the same values
[INFO] [stdout] 30 |             Self::TCP(tcp) => tcp.to_byte_buffer(),
[INFO] [stdout]    |             -------------- matches some of the same values
[INFO] [stdout] 31 |             _ => panic!("Not implemented yet"),
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/protocol.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             _ => panic!("Not implemented yet"),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/protocol.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             Self::ICMP(icmp) => icmp.len(),
[INFO] [stdout]    |             ---------------- matches some of the same values
[INFO] [stdout] 37 |             Self::TCP(tcp) => tcp.len(),
[INFO] [stdout]    |             -------------- matches some of the same values
[INFO] [stdout] 38 |             _ => panic!("Not implemented yet"),
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/ip.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct IPPacketError {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 27 |     kind: IPPacketErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IPPacketError` has a derived impl for the trait `Debug`, 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: unused variable: `icmp`
[INFO] [stdout]    --> src/protocol/icmp.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let icmp = ICMP::from_byte_buffer(&buf).unwrap();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_icmp`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/protocol.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |             _ => panic!("Not implemented yet"),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/protocol.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             Self::ICMP(icmp) => icmp.to_byte_buffer(),
[INFO] [stdout]    |             ---------------- matches some of the same values
[INFO] [stdout] 30 |             Self::TCP(tcp) => tcp.to_byte_buffer(),
[INFO] [stdout]    |             -------------- matches some of the same values
[INFO] [stdout] 31 |             _ => panic!("Not implemented yet"),
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/protocol.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             _ => panic!("Not implemented yet"),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/protocol.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             Self::ICMP(icmp) => icmp.len(),
[INFO] [stdout]    |             ---------------- matches some of the same values
[INFO] [stdout] 37 |             Self::TCP(tcp) => tcp.len(),
[INFO] [stdout]    |             -------------- matches some of the same values
[INFO] [stdout] 38 |             _ => panic!("Not implemented yet"),
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/ip.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct IPPacketError {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 27 |     kind: IPPacketErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IPPacketError` has a derived impl for the trait `Debug`, 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: unreachable pattern
[INFO] [stdout]   --> src/main.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |                     _ => {
[INFO] [stdout]    |                     ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |                     IPBody::ICMP(icmp) => match &icmp.body {
[INFO] [stdout]    |                     ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 51 |                     IPBody::TCP(tcp) => match &tcp.control_bits {
[INFO] [stdout]    |                     ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 98 |                     _ => {
[INFO] [stdout]    |                     ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |                     _ => {
[INFO] [stdout]    |                     ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |                     IPBody::ICMP(icmp) => match &icmp.body {
[INFO] [stdout]    |                     ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 51 |                     IPBody::TCP(tcp) => match &tcp.control_bits {
[INFO] [stdout]    |                     ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 98 |                     _ => {
[INFO] [stdout]    |                     ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.68s
[INFO] running `Command { std: "docker" "inspect" "750c896e22c2473e6f4c9d62e7a31e7ae84af1bad08d65861571025aa76f5dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "750c896e22c2473e6f4c9d62e7a31e7ae84af1bad08d65861571025aa76f5dcc", kill_on_drop: false }`
[INFO] [stdout] 750c896e22c2473e6f4c9d62e7a31e7ae84af1bad08d65861571025aa76f5dcc
