[INFO] cloning repository https://github.com/joergbrech/graphtest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joergbrech/graphtest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoergbrech%2Fgraphtest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoergbrech%2Fgraphtest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7064682019f038a8249f7c91afe13cb39cf84c44
[INFO] checking joergbrech/graphtest against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoergbrech%2Fgraphtest" "/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/joergbrech/graphtest
[INFO] finished tweaking git repo https://github.com/joergbrech/graphtest
[INFO] tweaked toml for git repo https://github.com/joergbrech/graphtest written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/joergbrech/graphtest on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/joergbrech/graphtest 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11273c03ee35c1e98b8c869a5aaf9320e0fe4a893ce88b92220fd4ee10e4845b
[INFO] running `Command { std: "docker" "start" "-a" "11273c03ee35c1e98b8c869a5aaf9320e0fe4a893ce88b92220fd4ee10e4845b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11273c03ee35c1e98b8c869a5aaf9320e0fe4a893ce88b92220fd4ee10e4845b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11273c03ee35c1e98b8c869a5aaf9320e0fe4a893ce88b92220fd4ee10e4845b", kill_on_drop: false }`
[INFO] [stdout] 11273c03ee35c1e98b8c869a5aaf9320e0fe4a893ce88b92220fd4ee10e4845b
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b321508b8e5f8da31de0bcda41e1066fe7915a3246118aa77469638fe221a417
[INFO] running `Command { std: "docker" "start" "-a" "b321508b8e5f8da31de0bcda41e1066fe7915a3246118aa77469638fe221a417", kill_on_drop: false }`
[INFO] [stderr]     Checking graphtest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `VGraph` is never constructed
[INFO] [stdout]   --> src/lib.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct VGraph<D>(Vec<Node<usize,D>>);
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/lib.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct Node<I,D> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 90 |     data: D,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:17:27
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn nodes(&'a self) -> &Self::C;
[INFO] [stdout]    |               --          ^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn nodes(&'a self) -> &'a Self::C;
[INFO] [stdout]    |                            ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `graphtest` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `VGraph` is never constructed
[INFO] [stdout]   --> src/lib.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct VGraph<D>(Vec<Node<usize,D>>);
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/lib.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct Node<I,D> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 90 |     data: D,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:17:27
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn nodes(&'a self) -> &Self::C;
[INFO] [stdout]    |               --          ^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn nodes(&'a self) -> &'a Self::C;
[INFO] [stdout]    |                            ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `graphtest` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b321508b8e5f8da31de0bcda41e1066fe7915a3246118aa77469638fe221a417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b321508b8e5f8da31de0bcda41e1066fe7915a3246118aa77469638fe221a417", kill_on_drop: false }`
[INFO] [stdout] b321508b8e5f8da31de0bcda41e1066fe7915a3246118aa77469638fe221a417
