[INFO] cloning repository https://github.com/tim-harding/rust_tcp [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tim-harding/rust_tcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftim-harding%2Frust_tcp", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftim-harding%2Frust_tcp'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e6c735c72b5730d8514180a8592b5a3be7d6062f [INFO] checking tim-harding/rust_tcp against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftim-harding%2Frust_tcp" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tim-harding/rust_tcp on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tim-harding/rust_tcp [INFO] finished tweaking git repo https://github.com/tim-harding/rust_tcp [INFO] tweaked toml for git repo https://github.com/tim-harding/rust_tcp written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/tim-harding/rust_tcp 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded etherparse v0.10.1 [INFO] [stderr] Downloaded tun-tap v0.1.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a01d862c1574eff6b30499b0f5c00bede365f490d0f9c2f8d2824700493d225b [INFO] running `Command { std: "docker" "start" "-a" "a01d862c1574eff6b30499b0f5c00bede365f490d0f9c2f8d2824700493d225b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a01d862c1574eff6b30499b0f5c00bede365f490d0f9c2f8d2824700493d225b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a01d862c1574eff6b30499b0f5c00bede365f490d0f9c2f8d2824700493d225b", kill_on_drop: false }` [INFO] [stdout] a01d862c1574eff6b30499b0f5c00bede365f490d0f9c2f8d2824700493d225b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b3516e51affc14f9f599dbc728b7c4de35d4cda358f916d09b9ce02b17123a07 [INFO] running `Command { std: "docker" "start" "-a" "b3516e51affc14f9f599dbc728b7c4de35d4cda358f916d09b9ce02b17123a07", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Checking slab v0.4.6 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Compiling syn v1.0.96 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Compiling tun-tap v0.1.2 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking scoped-tls v0.1.2 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking etherparse v0.10.1 [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking crossbeam-deque v0.7.4 [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 tokio-threadpool v0.1.18 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking tokio-codec v0.1.2 [INFO] [stderr] Checking tokio-fs v0.1.7 [INFO] [stderr] Checking tokio-uds v0.2.7 [INFO] [stderr] Checking tokio-udp v0.1.6 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tokio-core v0.1.18 [INFO] [stderr] Compiling thiserror-impl v1.0.31 [INFO] [stderr] Checking thiserror v1.0.31 [INFO] [stderr] Checking tcp v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `nic` [INFO] [stdout] --> src/tcp.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | nic: &mut Iface, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_header` [INFO] [stdout] --> src/tcp.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | ip_header: Ipv4HeaderSlice, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_header` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp.rs:148:9 [INFO] [stdout] | [INFO] [stdout] 148 | data: &[u8], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nic` [INFO] [stdout] --> src/tcp.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | nic: &mut Iface, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_header` [INFO] [stdout] --> src/tcp.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | ip_header: Ipv4HeaderSlice, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_header` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp.rs:148:9 [INFO] [stdout] | [INFO] [stdout] 148 | data: &[u8], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Other` is never constructed [INFO] [stdout] --> src/tcp.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub enum StateError { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 21 | Other, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `StateError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Established` is never constructed [INFO] [stdout] --> src/tcp.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 24 | pub enum State { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] 25 | SynReceived, [INFO] [stdout] 26 | Established, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `receive` is never read [INFO] [stdout] --> src/tcp.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 29 | pub struct Connection { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 32 | receive: ReceiveSequenceSpace, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `window`, `urgent`, `last_window_update_sequence`, `last_window_update_acknowledgement`, and `initial_sequence` are never read [INFO] [stdout] --> src/tcp.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 37 | struct SendSequenceSpace { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 40 | window: u16, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 41 | urgent: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 42 | last_window_update_sequence: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 43 | last_window_update_acknowledgement: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 44 | initial_sequence: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `window`, `urgent`, and `initial_sequence` are never read [INFO] [stdout] --> src/tcp.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 48 | struct ReceiveSequenceSpace { [INFO] [stdout] | -------------------- fields in this struct [INFO] [stdout] 49 | next: u32, [INFO] [stdout] 50 | window: u16, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 51 | urgent: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 52 | initial_sequence: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Other` is never constructed [INFO] [stdout] --> src/tcp.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub enum StateError { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 21 | Other, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `StateError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Established` is never constructed [INFO] [stdout] --> src/tcp.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 24 | pub enum State { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] 25 | SynReceived, [INFO] [stdout] 26 | Established, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `receive` is never read [INFO] [stdout] --> src/tcp.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 29 | pub struct Connection { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 32 | receive: ReceiveSequenceSpace, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `window`, `urgent`, `last_window_update_sequence`, `last_window_update_acknowledgement`, and `initial_sequence` are never read [INFO] [stdout] --> src/tcp.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 37 | struct SendSequenceSpace { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 40 | window: u16, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 41 | urgent: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 42 | last_window_update_sequence: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 43 | last_window_update_acknowledgement: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 44 | initial_sequence: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `window`, `urgent`, and `initial_sequence` are never read [INFO] [stdout] --> src/tcp.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 48 | struct ReceiveSequenceSpace { [INFO] [stdout] | -------------------- fields in this struct [INFO] [stdout] 49 | next: u32, [INFO] [stdout] 50 | window: u16, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 51 | urgent: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 52 | initial_sequence: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.85s [INFO] running `Command { std: "docker" "inspect" "b3516e51affc14f9f599dbc728b7c4de35d4cda358f916d09b9ce02b17123a07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3516e51affc14f9f599dbc728b7c4de35d4cda358f916d09b9ce02b17123a07", kill_on_drop: false }` [INFO] [stdout] b3516e51affc14f9f599dbc728b7c4de35d4cda358f916d09b9ce02b17123a07