[INFO] cloning repository https://github.com/jianshu93/DartUniFrac
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jianshu93/DartUniFrac" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjianshu93%2FDartUniFrac", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjianshu93%2FDartUniFrac'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6326208aab839a469657cec6067dbdda64271545
[INFO] checking jianshu93/DartUniFrac against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjianshu93%2FDartUniFrac" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/jianshu93/DartUniFrac
[INFO] finished tweaking git repo https://github.com/jianshu93/DartUniFrac
[INFO] tweaked toml for git repo https://github.com/jianshu93/DartUniFrac written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jianshu93/DartUniFrac on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jianshu93/DartUniFrac 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2c5e7cee237145bc3ecc139282086ea2869c2a8c27bf277e6df9af70175798c
[INFO] running `Command { std: "docker" "start" "-a" "c2c5e7cee237145bc3ecc139282086ea2869c2a8c27bf277e6df9af70175798c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2c5e7cee237145bc3ecc139282086ea2869c2a8c27bf277e6df9af70175798c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2c5e7cee237145bc3ecc139282086ea2869c2a8c27bf277e6df9af70175798c", kill_on_drop: false }`
[INFO] [stdout] c2c5e7cee237145bc3ecc139282086ea2869c2a8c27bf277e6df9af70175798c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc81a65c23df0e7470891e06abac841727ffa12edcb9126db42571ff68e3436c
[INFO] running `Command { std: "docker" "start" "-a" "cc81a65c23df0e7470891e06abac841727ffa12edcb9126db42571ff68e3436c", kill_on_drop: false }`
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[INFO] [stderr]     Checking dartunifrac v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `node_name` and `is_leaf` are never read
[INFO] [stdout]   --> src/emdunifrac.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct TreeIndex {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 39 |     node_name: Vec<Option<String>>,   // postorder node -> name
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 40 |     is_leaf: Vec<bool>,               // postorder node -> compact leaf?
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TreeIndex` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `node_name` and `is_leaf` are never read
[INFO] [stdout]   --> src/emdunifrac.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct TreeIndex {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 39 |     node_name: Vec<Option<String>>,   // postorder node -> name
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 40 |     is_leaf: Vec<bool>,               // postorder node -> compact leaf?
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TreeIndex` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 18s
[INFO] running `Command { std: "docker" "inspect" "cc81a65c23df0e7470891e06abac841727ffa12edcb9126db42571ff68e3436c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc81a65c23df0e7470891e06abac841727ffa12edcb9126db42571ff68e3436c", kill_on_drop: false }`
[INFO] [stdout] cc81a65c23df0e7470891e06abac841727ffa12edcb9126db42571ff68e3436c
