[INFO] cloning repository https://github.com/hashkid/peer-discovery [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hashkid/peer-discovery" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhashkid%2Fpeer-discovery", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhashkid%2Fpeer-discovery'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b131a26fd2db7195c0f12baf8c792d63d8d5449e [INFO] checking hashkid/peer-discovery 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%2Fhashkid%2Fpeer-discovery" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/hashkid/peer-discovery [INFO] finished tweaking git repo https://github.com/hashkid/peer-discovery [INFO] tweaked toml for git repo https://github.com/hashkid/peer-discovery written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/hashkid/peer-discovery 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/hashkid/peer-discovery 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0bfad9d8315aec56afb00103520dd24f594ad54c107e3428479b1320587639af [INFO] running `Command { std: "docker" "start" "-a" "0bfad9d8315aec56afb00103520dd24f594ad54c107e3428479b1320587639af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0bfad9d8315aec56afb00103520dd24f594ad54c107e3428479b1320587639af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0bfad9d8315aec56afb00103520dd24f594ad54c107e3428479b1320587639af", kill_on_drop: false }` [INFO] [stdout] 0bfad9d8315aec56afb00103520dd24f594ad54c107e3428479b1320587639af [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 9c31ffb8311d89171c45472fa7e62d74800a32a286920c2724d7c5294e52f7d5 [INFO] running `Command { std: "docker" "start" "-a" "9c31ffb8311d89171c45472fa7e62d74800a32a286920c2724d7c5294e52f7d5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.158 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling thiserror v1.0.63 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking bytes v1.7.1 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Compiling cc v1.1.16 [INFO] [stderr] Compiling curve25519-dalek v4.1.3 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Checking unsigned-varint v0.7.2 [INFO] [stderr] Compiling data-encoding v2.6.0 [INFO] [stderr] Checking signature v2.2.0 [INFO] [stderr] Checking sha2 v0.10.8 [INFO] [stderr] Checking idna v0.5.0 [INFO] [stderr] Checking ed25519 v2.2.3 [INFO] [stderr] Checking hmac v0.12.1 [INFO] [stderr] Checking core2 v0.4.0 [INFO] [stderr] Checking quick-protobuf v0.8.1 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Compiling serde v1.0.209 [INFO] [stderr] Checking url v2.5.2 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Compiling data-encoding-macro-internal v0.1.13 [INFO] [stderr] Checking multihash v0.19.1 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking mio v1.0.2 [INFO] [stderr] Checking hkdf v0.12.4 [INFO] [stderr] Checking futures-timer v3.0.3 [INFO] [stderr] Checking base-x v0.2.11 [INFO] [stderr] Checking bs58 v0.5.1 [INFO] [stderr] Compiling ring v0.17.8 [INFO] [stderr] Checking web-time v1.1.0 [INFO] [stderr] Checking unsigned-varint v0.8.0 [INFO] [stderr] Checking arrayref v0.3.8 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Checking allocator-api2 v0.2.18 [INFO] [stderr] Checking data-encoding-macro v0.1.15 [INFO] [stderr] Compiling rustls v0.23.12 [INFO] [stderr] Checking multibase v0.9.1 [INFO] [stderr] Checking rustls-pki-types v1.8.0 [INFO] [stderr] Checking nix v0.24.3 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling oid-registry v0.7.1 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Checking pem v3.0.4 [INFO] [stderr] Compiling snow v0.9.6 [INFO] [stderr] Checking regex-syntax v0.8.4 [INFO] [stderr] Checking nohash-hasher v0.2.0 [INFO] [stderr] Compiling prometheus-client v0.22.3 [INFO] [stderr] Checking rustc-hash v2.0.0 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking idna v0.4.0 [INFO] [stderr] Checking dtoa v1.0.9 [INFO] [stderr] Checking num-bigint v0.4.6 [INFO] [stderr] Checking hex v0.4.3 [INFO] [stderr] Compiling synstructure v0.13.1 [INFO] [stderr] Checking uint v0.9.5 [INFO] [stderr] Checking hex_fmt v0.3.0 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Compiling thiserror-impl v1.0.63 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling zeroize_derive v1.4.2 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Compiling curve25519-dalek-derive v0.1.1 [INFO] [stderr] Checking zeroize v1.8.1 [INFO] [stderr] Compiling pin-project-internal v1.1.5 [INFO] [stderr] Compiling tokio-macros v2.4.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking tokio v1.40.0 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Compiling libp2p-swarm-derive v0.35.0 [INFO] [stderr] Checking netlink-packet-utils v0.5.2 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking ahash v0.8.11 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking pin-project v1.1.5 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking netlink-packet-core v0.4.2 [INFO] [stderr] Checking ed25519-dalek v2.1.1 [INFO] [stderr] Checking rustls-webpki v0.102.7 [INFO] [stderr] Compiling asn1-rs-impl v0.2.0 [INFO] [stderr] Checking lru v0.12.4 [INFO] 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Checking der-parser v9.0.0 [INFO] [stderr] Checking yamux v0.12.1 [INFO] [stderr] Checking yamux v0.13.3 [INFO] [stderr] Checking hickory-proto v0.24.1 [INFO] [stderr] Checking futures-ticker v0.0.3 [INFO] [stderr] Checking libp2p-core v0.42.0 [INFO] [stderr] Checking x509-parser v0.16.0 [INFO] [stderr] Checking futures-rustls v0.26.0 [INFO] [stderr] Checking quinn-proto v0.11.8 [INFO] [stderr] Checking libp2p-tls v0.5.0 [INFO] [stderr] Checking libp2p-yamux v0.46.0 [INFO] [stderr] Checking libp2p-noise v0.45.0 [INFO] [stderr] Checking libp2p-swarm v0.45.1 [INFO] [stderr] Checking netlink-sys v0.8.6 [INFO] [stderr] Checking netlink-proto v0.10.0 [INFO] [stderr] Checking rtnetlink v0.10.1 [INFO] [stderr] Checking if-watch v3.2.0 [INFO] [stderr] Checking libp2p-tcp v0.42.0 [INFO] [stderr] Checking libp2p-allow-block-list v0.4.0 [INFO] [stderr] Checking libp2p-connection-limits v0.4.0 [INFO] [stderr] Checking libp2p-gossipsub v0.47.0 [INFO] [stderr] Checking libp2p-mdns v0.46.0 [INFO] [stderr] Checking libp2p-identify v0.45.0 [INFO] [stderr] Checking libp2p-kad v0.46.2 [INFO] [stderr] Checking quinn v0.11.5 [INFO] [stderr] Checking libp2p-quic v0.11.1 [INFO] [stderr] Checking libp2p v0.54.1 [INFO] [stderr] Checking peer_discover v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `env::args` [INFO] [stdout] --> src/main.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{env::args, num::NonZeroUsize, str::FromStr, time::Duration}; [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 imports: `GetRecordOk`, `RecordKey`, and `Record` [INFO] [stdout] --> src/main.rs:3:89 [INFO] [stdout] | [INFO] [stdout] 3 | use libp2p::{futures::StreamExt, identify, identity::Keypair, kad::{store::MemoryStore, GetRecordOk, Record, RecordKey}, noise, swarm::{N... [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `env::args` [INFO] [stdout] --> src/main.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{env::args, num::NonZeroUsize, str::FromStr, time::Duration}; [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 imports: `GetRecordOk`, `RecordKey`, and `Record` [INFO] [stdout] --> src/main.rs:3:89 [INFO] [stdout] | [INFO] [stdout] 3 | use libp2p::{futures::StreamExt, identify, identity::Keypair, kad::{store::MemoryStore, GetRecordOk, Record, RecordKey}, noise, swarm::{N... [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `to_search` [INFO] [stdout] --> src/main.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let to_search = PeerId::random(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_search` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `discover` is never used [INFO] [stdout] --> src/main.rs:150:4 [INFO] [stdout] | [INFO] [stdout] 150 | fn discover(swarm: &mut Swarm, to_search: PeerId) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `put` is never used [INFO] [stdout] --> src/main.rs:158:4 [INFO] [stdout] | [INFO] [stdout] 158 | fn put(swarm: &mut Swarm) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result>, Infallible> [INFO] [stdout] --> src/main.rs:18:21 [INFO] [stdout] | [INFO] [stdout] 18 | let mut swarm = if args.len() >= 2 { [INFO] [stdout] | _____________________^ [INFO] [stdout] 19 | | SwarmBuilder::with_new_identity() [INFO] [stdout] 20 | | } else { [INFO] [stdout] 21 | | let keypair = Keypair::ed25519_from_bytes([1; 32]).expect("error key"); [INFO] [stdout] ... | [INFO] [stdout] 38 | | }).expect("failed build swarm") [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `to_search` [INFO] [stdout] --> src/main.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let to_search = PeerId::random(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_search` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `discover` is never used [INFO] [stdout] --> src/main.rs:150:4 [INFO] [stdout] | [INFO] [stdout] 150 | fn discover(swarm: &mut Swarm, to_search: PeerId) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `put` is never used [INFO] [stdout] --> src/main.rs:158:4 [INFO] [stdout] | [INFO] [stdout] 158 | fn put(swarm: &mut Swarm) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result>, Infallible> [INFO] [stdout] --> src/main.rs:18:21 [INFO] [stdout] | [INFO] [stdout] 18 | let mut swarm = if args.len() >= 2 { [INFO] [stdout] | _____________________^ [INFO] [stdout] 19 | | SwarmBuilder::with_new_identity() [INFO] [stdout] 20 | | } else { [INFO] [stdout] 21 | | let keypair = Keypair::ed25519_from_bytes([1; 32]).expect("error key"); [INFO] [stdout] ... | [INFO] [stdout] 38 | | }).expect("failed build swarm") [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `peer_discover` (bin "peer_discover") due to 1 previous error; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `peer_discover` (bin "peer_discover" test) due to 1 previous error; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "9c31ffb8311d89171c45472fa7e62d74800a32a286920c2724d7c5294e52f7d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c31ffb8311d89171c45472fa7e62d74800a32a286920c2724d7c5294e52f7d5", kill_on_drop: false }` [INFO] [stdout] 9c31ffb8311d89171c45472fa7e62d74800a32a286920c2724d7c5294e52f7d5