[INFO] cloning repository https://github.com/gmelodie/distributed-systems-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gmelodie/distributed-systems-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgmelodie%2Fdistributed-systems-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgmelodie%2Fdistributed-systems-challenges'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7bbd85a4115bbad24a254b13beff308261bb8c4
[INFO] building gmelodie/distributed-systems-challenges against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgmelodie%2Fdistributed-systems-challenges" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gmelodie/distributed-systems-challenges on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gmelodie/distributed-systems-challenges
[INFO] finished tweaking git repo https://github.com/gmelodie/distributed-systems-challenges
[INFO] tweaked toml for git repo https://github.com/gmelodie/distributed-systems-challenges written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gmelodie/distributed-systems-challenges 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v1.10.0
[INFO] [stderr]   Downloaded serde v1.0.210
[INFO] [stderr]   Downloaded serde_derive v1.0.210
[INFO] [stderr]   Downloaded anyhow v1.0.89
[INFO] [stderr]   Downloaded proc-macro2 v1.0.87
[INFO] [stderr]   Downloaded unicode-ident v1.0.13
[INFO] [stderr]   Downloaded serde_json v1.0.128
[INFO] [stderr]   Downloaded syn v2.0.79
[INFO] [stderr]   Downloaded libc v0.2.158
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66732b2f58face8e79d030f39fecfae90e0f803619f256942b561afdeb763037
[INFO] running `Command { std: "docker" "start" "-a" "66732b2f58face8e79d030f39fecfae90e0f803619f256942b561afdeb763037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66732b2f58face8e79d030f39fecfae90e0f803619f256942b561afdeb763037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66732b2f58face8e79d030f39fecfae90e0f803619f256942b561afdeb763037", kill_on_drop: false }`
[INFO] [stdout] 66732b2f58face8e79d030f39fecfae90e0f803619f256942b561afdeb763037
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04494373b1ab579408e07d3dc17cf06aa323a4f5400fb29240273fcb85f4c63b
[INFO] running `Command { std: "docker" "start" "-a" "04494373b1ab579408e07d3dc17cf06aa323a4f5400fb29240273fcb85f4c63b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling anyhow v1.0.89
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling uuid v1.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling distributed-systems-challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `node_ids` is never read
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Node {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 12 |     id: String,
[INFO] [stdout] 13 |     node_ids: HashSet<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.65s
[INFO] running `Command { std: "docker" "inspect" "04494373b1ab579408e07d3dc17cf06aa323a4f5400fb29240273fcb85f4c63b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04494373b1ab579408e07d3dc17cf06aa323a4f5400fb29240273fcb85f4c63b", kill_on_drop: false }`
[INFO] [stdout] 04494373b1ab579408e07d3dc17cf06aa323a4f5400fb29240273fcb85f4c63b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e22ebfd93ca9a4edb1f9aa50513a4f7a3bc936c8deea2f95003ce4fdb4fae16
[INFO] running `Command { std: "docker" "start" "-a" "7e22ebfd93ca9a4edb1f9aa50513a4f7a3bc936c8deea2f95003ce4fdb4fae16", kill_on_drop: false }`
[INFO] [stderr]    Compiling distributed-systems-challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `node_ids` is never read
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Node {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 12 |     id: String,
[INFO] [stdout] 13 |     node_ids: HashSet<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "7e22ebfd93ca9a4edb1f9aa50513a4f7a3bc936c8deea2f95003ce4fdb4fae16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e22ebfd93ca9a4edb1f9aa50513a4f7a3bc936c8deea2f95003ce4fdb4fae16", kill_on_drop: false }`
[INFO] [stdout] 7e22ebfd93ca9a4edb1f9aa50513a4f7a3bc936c8deea2f95003ce4fdb4fae16