[INFO] cloning repository https://github.com/grubxy/rust-blockchain-learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grubxy/rust-blockchain-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrubxy%2Frust-blockchain-learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrubxy%2Frust-blockchain-learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7ecc4129a09b002193b561d2e0556804ae540d22 [INFO] checking grubxy/rust-blockchain-learn against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrubxy%2Frust-blockchain-learn" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/grubxy/rust-blockchain-learn on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/grubxy/rust-blockchain-learn [INFO] finished tweaking git repo https://github.com/grubxy/rust-blockchain-learn [INFO] tweaked toml for git repo https://github.com/grubxy/rust-blockchain-learn written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/grubxy/rust-blockchain-learn already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2ccf5a71dd012e12fa7c9b0b2d6da33338355de43380e65b2ea2c8baa92ea633 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "2ccf5a71dd012e12fa7c9b0b2d6da33338355de43380e65b2ea2c8baa92ea633", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2ccf5a71dd012e12fa7c9b0b2d6da33338355de43380e65b2ea2c8baa92ea633", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ccf5a71dd012e12fa7c9b0b2d6da33338355de43380e65b2ea2c8baa92ea633", kill_on_drop: false }` [INFO] [stdout] 2ccf5a71dd012e12fa7c9b0b2d6da33338355de43380e65b2ea2c8baa92ea633 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1007e925ce1411a7a80e79f9e496ecc9ee27d18466711349b9c35ae845e08058 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1007e925ce1411a7a80e79f9e496ecc9ee27d18466711349b9c35ae845e08058", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.92 [INFO] [stderr] Compiling syn v1.0.68 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Checking futures-io v0.3.13 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling tokio v1.4.0 [INFO] [stderr] Checking lock_api v0.4.2 [INFO] [stderr] Checking futures-channel v0.3.13 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking mio v0.7.11 [INFO] [stderr] Checking signal-hook-registry v1.3.0 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking serde_bytes v0.11.5 [INFO] [stderr] Compiling tokio-macros v1.1.0 [INFO] [stderr] Compiling futures-macro v0.3.13 [INFO] [stderr] Compiling pin-project-internal v1.0.6 [INFO] [stderr] Checking futures-util v0.3.13 [INFO] [stderr] Checking pin-project v1.0.6 [INFO] [stderr] Checking futures-executor v0.3.13 [INFO] [stderr] Checking futures v0.3.13 [INFO] [stderr] Checking tokio-util v0.6.5 [INFO] [stderr] Checking tokio-retry v0.3.0 [INFO] [stderr] Checking tokio-stream v0.1.5 [INFO] [stderr] Checking network v0.1.0 (/opt/rustwide/workdir/network) [INFO] [stdout] warning: unused imports: `Fuse`, `FuturesUnordered` [INFO] [stdout] --> network/src/peer/mod.rs:2:23 [INFO] [stdout] | [INFO] [stdout] 2 | use futures::stream::{Fuse, FuturesUnordered}; [INFO] [stdout] | ^^^^ ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Fuse`, `FuturesUnordered` [INFO] [stdout] --> network/src/peer/mod.rs:2:23 [INFO] [stdout] | [INFO] [stdout] 2 | use futures::stream::{Fuse, FuturesUnordered}; [INFO] [stdout] | ^^^^ ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserialize`, `Deserializer`, `Serialize`, `Serializer` [INFO] [stdout] --> network/src/peer/mod.rs:3:13 [INFO] [stdout] | [INFO] [stdout] 3 | use serde::{Deserialize, Deserializer, Serialize, Serializer}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserialize`, `Deserializer`, `Serialize`, `Serializer` [INFO] [stdout] --> network/src/peer/mod.rs:3:13 [INFO] [stdout] | [INFO] [stdout] 3 | use serde::{Deserialize, Deserializer, Serialize, Serializer}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> network/src/peer/mod.rs:31:22 [INFO] [stdout] | [INFO] [stdout] 31 | pub async fn start(mut self) { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `listen_addr` [INFO] [stdout] --> network/src/peer/mod.rs:16:3 [INFO] [stdout] | [INFO] [stdout] 16 | listen_addr: NetworkAddress, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> network/src/peer/mod.rs:31:22 [INFO] [stdout] | [INFO] [stdout] 31 | pub async fn start(mut self) { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `connection` [INFO] [stdout] --> network/src/peer/mod.rs:20:3 [INFO] [stdout] | [INFO] [stdout] 20 | connection: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `listen_addr` [INFO] [stdout] --> network/src/peer/mod.rs:16:3 [INFO] [stdout] | [INFO] [stdout] 16 | listen_addr: NetworkAddress, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `connection` [INFO] [stdout] --> network/src/peer/mod.rs:20:3 [INFO] [stdout] | [INFO] [stdout] 20 | connection: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 37.16s [INFO] running `Command { std: "docker" "inspect" "1007e925ce1411a7a80e79f9e496ecc9ee27d18466711349b9c35ae845e08058", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1007e925ce1411a7a80e79f9e496ecc9ee27d18466711349b9c35ae845e08058", kill_on_drop: false }` [INFO] [stdout] 1007e925ce1411a7a80e79f9e496ecc9ee27d18466711349b9c35ae845e08058