[INFO] cloning repository https://github.com/AriJordan/packet-routing-model
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AriJordan/packet-routing-model" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAriJordan%2Fpacket-routing-model", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAriJordan%2Fpacket-routing-model'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e78f6dd232bd4f6d4d88b5592ed33aa184fafb3a
[INFO] checking AriJordan/packet-routing-model against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAriJordan%2Fpacket-routing-model" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AriJordan/packet-routing-model
[INFO] finished tweaking git repo https://github.com/AriJordan/packet-routing-model
[INFO] tweaked toml for git repo https://github.com/AriJordan/packet-routing-model written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AriJordan/packet-routing-model on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AriJordan/packet-routing-model 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8c42f2948112446d17f39e0266d06a50d40b50202615dfd3dcc9e1480bf40e6
[INFO] running `Command { std: "docker" "start" "-a" "b8c42f2948112446d17f39e0266d06a50d40b50202615dfd3dcc9e1480bf40e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8c42f2948112446d17f39e0266d06a50d40b50202615dfd3dcc9e1480bf40e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c42f2948112446d17f39e0266d06a50d40b50202615dfd3dcc9e1480bf40e6", kill_on_drop: false }`
[INFO] [stdout] b8c42f2948112446d17f39e0266d06a50d40b50202615dfd3dcc9e1480bf40e6
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb17997bc82c4788a5a82bb464f1143f231f0b37ac909977fefde6764c4b1192
[INFO] running `Command { std: "docker" "start" "-a" "bb17997bc82c4788a5a82bb464f1143f231f0b37ac909977fefde6764c4b1192", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking routing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `id`, `v_from`, and `v_to` are never read
[INFO] [stdout]   --> src/network.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Edge{
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 20 |     pub id : EdgeId,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 21 |     pub v_from : VertexId,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 22 |     pub v_to : VertexId,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Edge` has a derived impl for the trait `Clone`, 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: field `id` is never read
[INFO] [stdout]   --> src/network.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Packet{
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 30 |     pub id : PacketId,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Packet` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:18:51
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let mut instance_directory : String = args[1].parse().unwrap();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `routing` (bin "routing") due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `id`, `v_from`, and `v_to` are never read
[INFO] [stdout]   --> src/network.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Edge{
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 20 |     pub id : EdgeId,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 21 |     pub v_from : VertexId,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 22 |     pub v_to : VertexId,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Edge` has a derived impl for the trait `Clone`, 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: field `id` is never read
[INFO] [stdout]   --> src/network.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Packet{
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 30 |     pub id : PacketId,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Packet` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:18:51
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let mut instance_directory : String = args[1].parse().unwrap();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `routing` (bin "routing" test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "bb17997bc82c4788a5a82bb464f1143f231f0b37ac909977fefde6764c4b1192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb17997bc82c4788a5a82bb464f1143f231f0b37ac909977fefde6764c4b1192", kill_on_drop: false }`
[INFO] [stdout] bb17997bc82c4788a5a82bb464f1143f231f0b37ac909977fefde6764c4b1192