[INFO] cloning repository https://github.com/Watfaq/netstack-bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Watfaq/netstack-bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWatfaq%2Fnetstack-bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWatfaq%2Fnetstack-bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b872c8caad56b7748bb6976b19aed48287db4003
[INFO] checking Watfaq/netstack-bench against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWatfaq%2Fnetstack-bench" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Watfaq/netstack-bench
[INFO] finished tweaking git repo https://github.com/Watfaq/netstack-bench
[INFO] tweaked toml for git repo https://github.com/Watfaq/netstack-bench written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Watfaq/netstack-bench on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Watfaq/netstack-bench 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 689608e540a27d1307191d78f16d30cd4c842af60b0ad2f4376b0d46bc2bc866
[INFO] running `Command { std: "docker" "start" "-a" "689608e540a27d1307191d78f16d30cd4c842af60b0ad2f4376b0d46bc2bc866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "689608e540a27d1307191d78f16d30cd4c842af60b0ad2f4376b0d46bc2bc866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "689608e540a27d1307191d78f16d30cd4c842af60b0ad2f4376b0d46bc2bc866", kill_on_drop: false }`
[INFO] [stdout] 689608e540a27d1307191d78f16d30cd4c842af60b0ad2f4376b0d46bc2bc866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c38e09e21d50bd8d6597bbc85ea2d8f761bb2bd5411971a99d6a761acbac9d6f
[INFO] running `Command { std: "docker" "start" "-a" "c38e09e21d50bd8d6597bbc85ea2d8f761bb2bd5411971a99d6a761acbac9d6f", kill_on_drop: false }`
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]    Compiling prettyplease v0.2.29
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling bitflags v2.8.0
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling libloading v0.8.6
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]     Checking managed v0.8.0
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling bindgen v0.69.5
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.2.13
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]    Compiling smoltcp v0.12.0
[INFO] [stderr]     Checking tokio v1.43.0
[INFO] [stderr]    Compiling smoltcp v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking piper v0.2.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking futures-lite v2.6.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]     Checking event-listener v5.4.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.3
[INFO] [stderr]     Checking async-channel v2.3.1
[INFO] [stderr]     Checking async-stream v0.3.6
[INFO] [stderr]     Checking blocking v1.6.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking mac_address v1.1.8
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking etherparse v0.16.0
[INFO] [stderr]     Checking etherparse v0.17.0
[INFO] [stderr]     Checking getifaddrs v0.1.5
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking socket2-ext v0.1.1
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking tokio-util v0.7.15
[INFO] [stderr]     Checking tun-rs v2.0.9
[INFO] [stderr]     Checking netstack-smoltcp v0.1.3 (https://github.com/automesh-network/netstack-smoltcp.git?rev=62260478079d96b42fa524caa855609312c2cf43#62260478)
[INFO] [stderr]     Checking tun2 v3.1.8
[INFO] [stderr]     Checking netstack-system v0.1.0 (https://github.com/Watfaq/netstack-system.git?rev=73373ff#73373fff)
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]    Compiling netstack-lwip v0.3.4 (https://github.com/Watfaq/netstack-lwip.git?rev=2817bf82740e04bbee6b7bf1165f55657a6ed163#2817bf82)
[INFO] [stderr]     Checking netstack-bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-lwip.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// Default binding interface, default by guessed.
[INFO] [stdout] 13 | |     /// Specify but doesn't exist, no device is bound.
[INFO] [stdout] 14 | |     #[structopt(short = "i", long = "interface")]
[INFO] [stdout] 15 | |     interface: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-lwip.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// name of the tun device, default to rtun8.
[INFO] [stdout] 18 | |     #[structopt(short = "n", long = "name", default_value = "utun8")]
[INFO] [stdout] 19 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `netstack-bench` (bin "netstack-lwip") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-lwip.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// Default binding interface, default by guessed.
[INFO] [stdout] 13 | |     /// Specify but doesn't exist, no device is bound.
[INFO] [stdout] 14 | |     #[structopt(short = "i", long = "interface")]
[INFO] [stdout] 15 | |     interface: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-lwip.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// name of the tun device, default to rtun8.
[INFO] [stdout] 18 | |     #[structopt(short = "n", long = "name", default_value = "utun8")]
[INFO] [stdout] 19 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-smoltcp.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     /// Default binding interface, default by guessed.
[INFO] [stdout] 39 | |     /// Specify but doesn't exist, no device is bound.
[INFO] [stdout] 40 | |     #[structopt(short = "i", long = "interface")]
[INFO] [stdout] 41 | |     interface: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-smoltcp.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     /// name of the tun device, default to rtun8.
[INFO] [stdout] 44 | |     #[structopt(short = "n", long = "name", default_value = "utun8")]
[INFO] [stdout] 45 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-system.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     /// Default binding interface, default by guessed.
[INFO] [stdout] 14 | |     /// Specify but doesn't exist, no device is bound.
[INFO] [stdout] 15 | |     #[structopt(short = "i", long = "interface")]
[INFO] [stdout] 16 | |     interface: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-system.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     /// name of the tun device, default to rtun8.
[INFO] [stdout] 19 | |     #[structopt(short = "n", long = "name", default_value = "utun8")]
[INFO] [stdout] 20 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `netstack-bench` (bin "netstack-smoltcp") due to 2 previous errors
[INFO] [stderr] error: could not compile `netstack-bench` (bin "netstack-lwip" test) due to 2 previous errors
[INFO] [stderr] error: could not compile `netstack-bench` (bin "netstack-system" test) due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-smoltcp.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     /// Default binding interface, default by guessed.
[INFO] [stdout] 39 | |     /// Specify but doesn't exist, no device is bound.
[INFO] [stdout] 40 | |     #[structopt(short = "i", long = "interface")]
[INFO] [stdout] 41 | |     interface: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-smoltcp.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     /// name of the tun device, default to rtun8.
[INFO] [stdout] 44 | |     #[structopt(short = "n", long = "name", default_value = "utun8")]
[INFO] [stdout] 45 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/netstack-smoltcp-tun-rs.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     /// Default binding interface, default by guessed.
[INFO] [stdout] 40 | |     /// Specify but doesn't exist, no device is bound.
[INFO] [stdout] 41 | |     #[structopt(short = "i", long = "interface")]
[INFO] [stdout] 42 | |     interface: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/netstack-smoltcp-tun-rs.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     /// name of the tun device, default to rtun8.
[INFO] [stdout] 45 | |     #[structopt(short = "n", long = "name", default_value = "utun8")]
[INFO] [stdout] 46 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `netstack-bench` (bin "netstack-smoltcp-tun-rs") due to 2 previous errors
[INFO] [stderr] error: could not compile `netstack-bench` (bin "netstack-smoltcp" test) due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/netstack-smoltcp-tun-rs.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     /// Default binding interface, default by guessed.
[INFO] [stdout] 40 | |     /// Specify but doesn't exist, no device is bound.
[INFO] [stdout] 41 | |     #[structopt(short = "i", long = "interface")]
[INFO] [stdout] 42 | |     interface: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/netstack-smoltcp-tun-rs.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     /// name of the tun device, default to rtun8.
[INFO] [stdout] 45 | |     #[structopt(short = "n", long = "name", default_value = "utun8")]
[INFO] [stdout] 46 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `netstack-bench` (bin "netstack-smoltcp-tun-rs" test) due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-system.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     /// Default binding interface, default by guessed.
[INFO] [stdout] 14 | |     /// Specify but doesn't exist, no device is bound.
[INFO] [stdout] 15 | |     #[structopt(short = "i", long = "interface")]
[INFO] [stdout] 16 | |     interface: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/netstack-system.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     /// name of the tun device, default to rtun8.
[INFO] [stdout] 19 | |     #[structopt(short = "n", long = "name", default_value = "utun8")]
[INFO] [stdout] 20 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `netstack-bench` (bin "netstack-system") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c38e09e21d50bd8d6597bbc85ea2d8f761bb2bd5411971a99d6a761acbac9d6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c38e09e21d50bd8d6597bbc85ea2d8f761bb2bd5411971a99d6a761acbac9d6f", kill_on_drop: false }`
[INFO] [stdout] c38e09e21d50bd8d6597bbc85ea2d8f761bb2bd5411971a99d6a761acbac9d6f
