[INFO] fetching crate raft-consensus 0.4.0... [INFO] checking raft-consensus-0.4.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate raft-consensus 0.4.0 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate raft-consensus 0.4.0 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 crates.io crate raft-consensus 0.4.0 [INFO] finished tweaking crates.io crate raft-consensus 0.4.0 [INFO] tweaked toml for crates.io crate raft-consensus 0.4.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 78 packages [INFO] [stderr] Adding ansi_term v0.11.0 (latest: v0.12.1) [INFO] [stderr] Adding capnp v0.9.5 (latest: v0.19.3) [INFO] [stderr] Adding capnpc v0.9.5 (latest: v0.19.0) [INFO] [stderr] Adding env_logger v0.5.13 (latest: v0.11.3) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding humantime v1.3.0 (latest: v2.1.0) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding pretty_env_logger v0.2.5 (latest: v0.5.0) [INFO] [stderr] Adding quick-error v1.2.3 (latest: v2.0.1) [INFO] [stderr] Adding rand v0.3.23 (latest: v0.8.5) [INFO] [stderr] Adding rand v0.4.6 (latest: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding synstructure v0.12.6 (latest: v0.13.1) [INFO] [stderr] Adding uuid v0.5.1 (latest: v1.8.0) [INFO] [stderr] Adding windows-core v0.52.0 (latest: v0.55.0) [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 capnpc v0.9.5 [INFO] [stderr] Downloaded capnp v0.9.5 [INFO] [stderr] Downloaded uuid v0.5.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e2bedbaff3f902bb969f632e53bbfd8c59bba03b235ab8d00c47a2d361e1d1c2 [INFO] running `Command { std: "docker" "start" "-a" "e2bedbaff3f902bb969f632e53bbfd8c59bba03b235ab8d00c47a2d361e1d1c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e2bedbaff3f902bb969f632e53bbfd8c59bba03b235ab8d00c47a2d361e1d1c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2bedbaff3f902bb969f632e53bbfd8c59bba03b235ab8d00c47a2d361e1d1c2", kill_on_drop: false }` [INFO] [stdout] e2bedbaff3f902bb969f632e53bbfd8c59bba03b235ab8d00c47a2d361e1d1c2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e47040c525da2f60fccc6c602c13dfc2c7fec3f7496a86ae7016d313e3d11a4d [INFO] running `Command { std: "docker" "start" "-a" "e47040c525da2f60fccc6c602c13dfc2c7fec3f7496a86ae7016d313e3d11a4d", kill_on_drop: false }` [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Compiling raft-consensus v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking object v0.32.2 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking uuid v0.5.1 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking env_logger v0.5.13 [INFO] [stderr] Checking backtrace v0.3.71 [INFO] [stderr] Checking pretty_env_logger v0.2.5 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stdout] warning: derive helper attribute is used before it is introduced [INFO] [stdout] --> src/error.rs:11:3 [INFO] [stdout] | [INFO] [stdout] 11 | #[fail(display = "Consensus error")] [INFO] [stdout] | ^^^^ [INFO] [stdout] 12 | #[derive(Fail, Debug)] [INFO] [stdout] | ---- the attribute is introduced here [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79202 [INFO] [stdout] = note: `#[warn(legacy_derive_helpers)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Read` is imported redundantly [INFO] [stdout] --> src/persistent_log/fs.rs:2:37 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Read` is already imported here [INFO] [stdout] 2 | use std::io::{BufReader, BufWriter, Read, SeekFrom, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/persistent_log/fs.rs:2:53 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] 2 | use std::io::{BufReader, BufWriter, Read, SeekFrom, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Log` is imported redundantly [INFO] [stdout] --> src/persistent_log/fs.rs:290:53 [INFO] [stdout] | [INFO] [stdout] 289 | use super::*; [INFO] [stdout] | -------- the item `Log` is already imported here [INFO] [stdout] 290 | use persistent_log::{append_entries, get_entry, Log}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `LogIndex` is imported redundantly [INFO] [stdout] --> src/persistent_log/fs.rs:293:10 [INFO] [stdout] | [INFO] [stdout] 289 | use super::*; [INFO] [stdout] | -------- the item `LogIndex` is already imported here [INFO] [stdout] ... [INFO] [stdout] 293 | use {LogIndex, ServerId, Term}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ServerId` is imported redundantly [INFO] [stdout] --> src/persistent_log/fs.rs:293:20 [INFO] [stdout] | [INFO] [stdout] 289 | use super::*; [INFO] [stdout] | -------- the item `ServerId` is already imported here [INFO] [stdout] ... [INFO] [stdout] 293 | use {LogIndex, ServerId, Term}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Term` is imported redundantly [INFO] [stdout] --> src/persistent_log/fs.rs:293:30 [INFO] [stdout] | [INFO] [stdout] 289 | use super::*; [INFO] [stdout] | -------- the item `Term` is already imported here [INFO] [stdout] ... [INFO] [stdout] 293 | use {LogIndex, ServerId, Term}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Log` is imported redundantly [INFO] [stdout] --> src/persistent_log/mem.rs:111:53 [INFO] [stdout] | [INFO] [stdout] 109 | use super::*; [INFO] [stdout] | -------- the item `Log` is already imported here [INFO] [stdout] 110 | [INFO] [stdout] 111 | use persistent_log::{append_entries, get_entry, Log}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `LogIndex` is imported redundantly [INFO] [stdout] --> src/persistent_log/mem.rs:112:10 [INFO] [stdout] | [INFO] [stdout] 109 | use super::*; [INFO] [stdout] | -------- the item `LogIndex` is already imported here [INFO] [stdout] ... [INFO] [stdout] 112 | use {LogIndex, ServerId, Term}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ServerId` is imported redundantly [INFO] [stdout] --> src/persistent_log/mem.rs:112:20 [INFO] [stdout] | [INFO] [stdout] 109 | use super::*; [INFO] [stdout] | -------- the item `ServerId` is already imported here [INFO] [stdout] ... [INFO] [stdout] 112 | use {LogIndex, ServerId, Term}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Term` is imported redundantly [INFO] [stdout] --> src/persistent_log/mem.rs:112:30 [INFO] [stdout] | [INFO] [stdout] 109 | use super::*; [INFO] [stdout] | -------- the item `Term` is already imported here [INFO] [stdout] ... [INFO] [stdout] 112 | use {LogIndex, ServerId, Term}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `pretty_env_logger` is imported redundantly [INFO] [stdout] --> src/consensus.rs:1025:9 [INFO] [stdout] | [INFO] [stdout] 1025 | use pretty_env_logger; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:23:1 [INFO] [stdout] | [INFO] [stdout] 23 | extern crate pretty_env_logger; [INFO] [stdout] | ------------------------------- the item `pretty_env_logger` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: derive helper attribute is used before it is introduced [INFO] [stdout] --> src/error.rs:11:3 [INFO] [stdout] | [INFO] [stdout] 11 | #[fail(display = "Consensus error")] [INFO] [stdout] | ^^^^ [INFO] [stdout] 12 | #[derive(Fail, Debug)] [INFO] [stdout] | ---- the attribute is introduced here [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79202 [INFO] [stdout] = note: `#[warn(legacy_derive_helpers)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Read` is imported redundantly [INFO] [stdout] --> src/persistent_log/fs.rs:2:37 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Read` is already imported here [INFO] [stdout] 2 | use std::io::{BufReader, BufWriter, Read, SeekFrom, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/persistent_log/fs.rs:2:53 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] 2 | use std::io::{BufReader, BufWriter, Read, SeekFrom, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error.rs:39:23 [INFO] [stdout] | [INFO] [stdout] 39 | PersistentLog(Box), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 39 | PersistentLog(Box), [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error.rs:39:23 [INFO] [stdout] | [INFO] [stdout] 39 | PersistentLog(Box), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 39 | PersistentLog(Box), [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/consensus.rs:1112:24 [INFO] [stdout] | [INFO] [stdout] 1112 | for (peer, mut consensus) in self.peers.iter_mut() { [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: variable does not need to be mutable [INFO] [stdout] --> src/consensus.rs:1119:21 [INFO] [stdout] | [INFO] [stdout] 1119 | let mut entry = timeouts.entry(peer.clone()).or_insert(HashSet::new()); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/consensus.rs:1132:21 [INFO] [stdout] | [INFO] [stdout] 1132 | let mut peer_consensus = self.peers.get_mut(&to).unwrap(); [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/consensus.rs:1141:21 [INFO] [stdout] | [INFO] [stdout] 1141 | let mut entry = timeouts [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.55s [INFO] running `Command { std: "docker" "inspect" "e47040c525da2f60fccc6c602c13dfc2c7fec3f7496a86ae7016d313e3d11a4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e47040c525da2f60fccc6c602c13dfc2c7fec3f7496a86ae7016d313e3d11a4d", kill_on_drop: false }` [INFO] [stdout] e47040c525da2f60fccc6c602c13dfc2c7fec3f7496a86ae7016d313e3d11a4d