[INFO] fetching crate tender 0.1.1...
[INFO] testing tender-0.1.1 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate tender 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate tender 0.1.1
[INFO] finished tweaking crates.io crate tender 0.1.1
[INFO] tweaked toml for crates.io crate tender 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tender 0.1.1 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.9.3 (available: v0.11.10)
[INFO] [stderr]       Adding fastrand v1.9.0 (available: v2.4.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.9.3
[INFO] [stderr]   Downloaded sync-wait-group v0.1.1
[INFO] [stderr]   Downloaded watch v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1738ab50d65b59fab281706138ef53d993f8b0cd25b59829d27b01afab16146
[INFO] running `Command { std: "docker" "start" "-a" "d1738ab50d65b59fab281706138ef53d993f8b0cd25b59829d27b01afab16146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1738ab50d65b59fab281706138ef53d993f8b0cd25b59829d27b01afab16146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1738ab50d65b59fab281706138ef53d993f8b0cd25b59829d27b01afab16146", kill_on_drop: false }`
[INFO] [stdout] d1738ab50d65b59fab281706138ef53d993f8b0cd25b59829d27b01afab16146
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dce8fcdb7cd106ac2492c5bf3e54d75eabdfd23b4bb5db9e014858808090f708
[INFO] running `Command { std: "docker" "start" "-a" "dce8fcdb7cd106ac2492c5bf3e54d75eabdfd23b4bb5db9e014858808090f708", kill_on_drop: false }`
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling watch v0.2.3
[INFO] [stderr]    Compiling sync-wait-group v0.1.1
[INFO] [stderr]    Compiling tender v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/core/observer.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn run(mut self) {
[INFO] [stdout]    |                ----^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "dce8fcdb7cd106ac2492c5bf3e54d75eabdfd23b4bb5db9e014858808090f708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce8fcdb7cd106ac2492c5bf3e54d75eabdfd23b4bb5db9e014858808090f708", kill_on_drop: false }`
[INFO] [stdout] dce8fcdb7cd106ac2492c5bf3e54d75eabdfd23b4bb5db9e014858808090f708
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 856bb708e114bf5bd6fcaa87304c4b14dbc3721bb24a0886edf462562f36812b
[INFO] running `Command { std: "docker" "start" "-a" "856bb708e114bf5bd6fcaa87304c4b14dbc3721bb24a0886edf462562f36812b", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling tender v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/core/observer.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn run(mut self) {
[INFO] [stdout]    |                ----^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/core/observer.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn run(mut self) {
[INFO] [stdout]    |                ----^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.76s
[INFO] running `Command { std: "docker" "inspect" "856bb708e114bf5bd6fcaa87304c4b14dbc3721bb24a0886edf462562f36812b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "856bb708e114bf5bd6fcaa87304c4b14dbc3721bb24a0886edf462562f36812b", kill_on_drop: false }`
[INFO] [stdout] 856bb708e114bf5bd6fcaa87304c4b14dbc3721bb24a0886edf462562f36812b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 774d1cc9549bc777c88392a4c36b48766c99d6b7d655a39a08daac8911409d80
[INFO] running `Command { std: "docker" "start" "-a" "774d1cc9549bc777c88392a4c36b48766c99d6b7d655a39a08daac8911409d80", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core/observer.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn run(mut self) {
[INFO] [stderr]    |                ----^^^^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tender` (lib) generated 1 warning (run `cargo fix --lib -p tender` to apply 1 suggestion)
[INFO] [stderr] warning: `tender` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tender-d79a0ad1eed8eac3)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/fixtures.rs (/opt/rustwide/target/debug/deps/fixtures-5b4ecc0423d7abd2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running tests/group_election.rs (/opt/rustwide/target/debug/deps/group_election-5db2d44fb10a2cc1)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test_election_with_initial_candidate ... ok
[INFO] [stdout] test test_step_up_and_down ... ok
[INFO] [stdout] test test_election_with_observer ... ok
[INFO] [stdout] test test_election ... ok
[INFO] [stdout] test test_election_with_quorum ... ok
[INFO] [stdout] test test_move_leader ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 10.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/single_node.rs (/opt/rustwide/target/debug/deps/single_node-d03a74ef66750f85)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_single_node_as_observer ... ok
[INFO] [stdout] test test_single_node ... ok
[INFO] [stderr]    Doc-tests tender
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "774d1cc9549bc777c88392a4c36b48766c99d6b7d655a39a08daac8911409d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "774d1cc9549bc777c88392a4c36b48766c99d6b7d655a39a08daac8911409d80", kill_on_drop: false }`
[INFO] [stdout] 774d1cc9549bc777c88392a4c36b48766c99d6b7d655a39a08daac8911409d80
