[INFO] cloning repository https://github.com/ed-w-lee/raft-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ed-w-lee/raft-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fed-w-lee%2Fraft-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fed-w-lee%2Fraft-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93f6505c27e74c423955443909642aee9bd0c115
[INFO] checking ed-w-lee/raft-in-rust against try#50d7e48beb74b48bd17c3749bfb73843c9ae0166 for pr-151102
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fed-w-lee%2Fraft-in-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ed-w-lee/raft-in-rust
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/ed-w-lee/raft-in-rust
[INFO] tweaked toml for git repo https://github.com/ed-w-lee/raft-in-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ed-w-lee/raft-in-rust on toolchain 50d7e48beb74b48bd17c3749bfb73843c9ae0166
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ed-w-lee/raft-in-rust 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" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29cb62fe73d10dc2b6f9e0c6c8500dc3f6485204e06c5e3f2dbd93b8b6eaa5b7
[INFO] running `Command { std: "docker" "start" "-a" "29cb62fe73d10dc2b6f9e0c6c8500dc3f6485204e06c5e3f2dbd93b8b6eaa5b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29cb62fe73d10dc2b6f9e0c6c8500dc3f6485204e06c5e3f2dbd93b8b6eaa5b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29cb62fe73d10dc2b6f9e0c6c8500dc3f6485204e06c5e3f2dbd93b8b6eaa5b7", kill_on_drop: false }`
[INFO] [stdout] 29cb62fe73d10dc2b6f9e0c6c8500dc3f6485204e06c5e3f2dbd93b8b6eaa5b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b99878106c6d534c48f11e9ce489d4b1a08affb46c708df3ce40a0eb7c0d880f
[INFO] running `Command { std: "docker" "start" "-a" "b99878106c6d534c48f11e9ce489d4b1a08affb46c708df3ce40a0eb7c0d880f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rafted v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stdout] warning: function `partition` is never used
[INFO] [stdout]   --> tests/test_utils/helpers.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn partition(sim: &mut Simulation, split: bool, num_nodes: u64, nodes: Vec<NodeId>) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Entry` is never constructed
[INFO] [stdout]  --> src/examples/tcp_mvp/entry.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Entry {
[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 `into_index` is never used
[INFO] [stdout]    --> src/examples/tcp_mvp/serialize.rs:405:4
[INFO] [stdout]     |
[INFO] [stdout] 405 | fn into_index(buf: &[u8]) -> Option<LogIndex> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/examples/tcp_mvp/connections.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 |         &self.idx.hash(state);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let _ = &self.idx.hash(state);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/examples/tcp_mvp/connections.rs:55:3
[INFO] [stdout]    |
[INFO] [stdout] 55 |         &self.fd.hash(state);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let _ = &self.fd.hash(state);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "b99878106c6d534c48f11e9ce489d4b1a08affb46c708df3ce40a0eb7c0d880f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b99878106c6d534c48f11e9ce489d4b1a08affb46c708df3ce40a0eb7c0d880f", kill_on_drop: false }`
[INFO] [stdout] b99878106c6d534c48f11e9ce489d4b1a08affb46c708df3ce40a0eb7c0d880f
