[INFO] updating cached repository https://github.com/JanLikar/zeromq_master_failover [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 81c09abfc9d8332f61ed7d71f409f2174cb34d49 [INFO] checking JanLikar/zeromq_master_failover against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanLikar%2Fzeromq_master_failover" "/workspace/builds/worker-11/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JanLikar/zeromq_master_failover on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/JanLikar/zeromq_master_failover [INFO] finished tweaking git repo https://github.com/JanLikar/zeromq_master_failover [INFO] tweaked toml for git repo https://github.com/JanLikar/zeromq_master_failover written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate git repo https://github.com/JanLikar/zeromq_master_failover already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] warning: unused manifest key: bin.0.src [INFO] [stderr] warning: unused manifest key: bin.1.src [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 55df019955bc3325e39a043a76e78e6303de714a06486b5abc2e965e3f4b6bd8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "55df019955bc3325e39a043a76e78e6303de714a06486b5abc2e965e3f4b6bd8"` [INFO] [stderr] warning: unused manifest key: bin.0.src [INFO] [stderr] warning: unused manifest key: bin.1.src [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Compiling toml v0.2.1 [INFO] [stderr] Compiling error-chain v0.10.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking regex-syntax v0.6.13 [INFO] [stderr] Compiling zmq v0.9.2 [INFO] [stderr] Checking remove_dir_all v0.5.2 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Compiling metadeps v1.1.2 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling zmq-sys v0.11.0 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Checking clicolors-control v1.0.1 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking regex v1.3.3 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking chrono v0.4.10 [INFO] [stderr] Checking console v0.9.2 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking dialoguer v0.5.0 [INFO] [stderr] Checking zeromq_master_failover v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/bin/client.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/bin/client.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `store` [INFO] [stderr] --> src/bin/client.rs:10:6 [INFO] [stderr] | [INFO] [stderr] 10 | let mut store: String = "Initial".to_string(); [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_store` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `store` [INFO] [stderr] --> src/bin/client.rs:10:6 [INFO] [stderr] | [INFO] [stderr] 10 | let mut store: String = "Initial".to_string(); [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_store` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/client.rs:10:6 [INFO] [stderr] | [INFO] [stderr] 10 | let mut store: String = "Initial".to_string(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `NOT_MASTER` [INFO] [stderr] --> src/bin/client.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | const NOT_MASTER: u8 = 5; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/client.rs:20:2 [INFO] [stderr] | [INFO] [stderr] 20 | socket1.connect(&format!("tcp://localhost:{}", &port1)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/client.rs:25:2 [INFO] [stderr] | [INFO] [stderr] 25 | socket2.connect(&format!("tcp://localhost:{}", &port2)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/client.rs:10:6 [INFO] [stderr] | [INFO] [stderr] 10 | let mut store: String = "Initial".to_string(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `NOT_MASTER` [INFO] [stderr] --> src/bin/client.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | const NOT_MASTER: u8 = 5; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/client.rs:20:2 [INFO] [stderr] | [INFO] [stderr] 20 | socket1.connect(&format!("tcp://localhost:{}", &port1)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/client.rs:25:2 [INFO] [stderr] | [INFO] [stderr] 25 | socket2.connect(&format!("tcp://localhost:{}", &port2)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 19.26s [INFO] running `"docker" "inspect" "55df019955bc3325e39a043a76e78e6303de714a06486b5abc2e965e3f4b6bd8"` [INFO] running `"docker" "rm" "-f" "55df019955bc3325e39a043a76e78e6303de714a06486b5abc2e965e3f4b6bd8"` [INFO] [stdout] 55df019955bc3325e39a043a76e78e6303de714a06486b5abc2e965e3f4b6bd8