[INFO] cloning repository https://github.com/JaniM/effects
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JaniM/effects" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaniM%2Feffects", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaniM%2Feffects'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0a1624af51b93a271f210696b484fec1f2a7161
[INFO] checking JaniM/effects against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaniM%2Feffects" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JaniM/effects on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JaniM/effects
[INFO] finished tweaking git repo https://github.com/JaniM/effects
[INFO] tweaked toml for git repo https://github.com/JaniM/effects written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JaniM/effects 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lasso v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68b3f4aa2f849a30fddfafc011b20abbd0bc38d88bb0a31de4d89d1084d6cfdd
[INFO] running `Command { std: "docker" "start" "-a" "68b3f4aa2f849a30fddfafc011b20abbd0bc38d88bb0a31de4d89d1084d6cfdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68b3f4aa2f849a30fddfafc011b20abbd0bc38d88bb0a31de4d89d1084d6cfdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68b3f4aa2f849a30fddfafc011b20abbd0bc38d88bb0a31de4d89d1084d6cfdd", kill_on_drop: false }`
[INFO] [stdout] 68b3f4aa2f849a30fddfafc011b20abbd0bc38d88bb0a31de4d89d1084d6cfdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bb15bb9c943ba765810561555c84e75dc1bbccbb4bc49aca9891fefd78fa19d
[INFO] running `Command { std: "docker" "start" "-a" "4bb15bb9c943ba765810561555c84e75dc1bbccbb4bc49aca9891fefd78fa19d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking lasso v0.2.2
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]     Checking logos v0.11.4
[INFO] [stderr]     Checking effects v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/main.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     UnexpectedClose {
[INFO] [stdout]    |     --------------- field in this variant
[INFO] [stdout] 53 |         span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/main.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     UnexpectedClose {
[INFO] [stdout]    |     --------------- field in this variant
[INFO] [stdout] 53 |         span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `span` and `slice` are never read
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     LexError {
[INFO] [stdout]    |     -------- fields in this variant
[INFO] [stdout] 56 |         span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 57 |         slice: String
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `EdgeIndex` is never used
[INFO] [stdout]    --> src/main.rs:109:6
[INFO] [stdout]     |
[INFO] [stdout] 109 | type EdgeIndex = petgraph::graph::EdgeIndex<u32>;
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `span` and `slice` are never read
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     LexError {
[INFO] [stdout]    |     -------- fields in this variant
[INFO] [stdout] 56 |         span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 57 |         slice: String
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Call` is never constructed
[INFO] [stdout]    --> src/main.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | enum Operator {
[INFO] [stdout]     |      -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 134 |     Call,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `EdgeIndex` is never used
[INFO] [stdout]    --> src/main.rs:109:6
[INFO] [stdout]     |
[INFO] [stdout] 109 | type EdgeIndex = petgraph::graph::EdgeIndex<u32>;
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `New` is never constructed
[INFO] [stdout]    --> src/main.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 187 | enum TransformIndex {
[INFO] [stdout]     |      -------------- variant in this enum
[INFO] [stdout] 188 |     Old(NodeIndex),
[INFO] [stdout] 189 |     New(u32)
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TransformIndex` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Call` is never constructed
[INFO] [stdout]    --> src/main.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | enum Operator {
[INFO] [stdout]     |      -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 134 |     Call,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Connect` and `Create` are never constructed
[INFO] [stdout]    --> src/main.rs:195:5
[INFO] [stdout]     |
[INFO] [stdout] 193 | enum Transform {
[INFO] [stdout]     |      --------- variants in this enum
[INFO] [stdout] 194 |     Replace(NodeIndex, Operator),
[INFO] [stdout] 195 |     Connect(TransformIndex, TransformIndex),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 196 |     Disconnect(TransformIndex, TransformIndex),
[INFO] [stdout] 197 |     Create(Operator)
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Transform` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `New` is never constructed
[INFO] [stdout]    --> src/main.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 187 | enum TransformIndex {
[INFO] [stdout]     |      -------------- variant in this enum
[INFO] [stdout] 188 |     Old(NodeIndex),
[INFO] [stdout] 189 |     New(u32)
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TransformIndex` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Connect` and `Create` are never constructed
[INFO] [stdout]    --> src/main.rs:195:5
[INFO] [stdout]     |
[INFO] [stdout] 193 | enum Transform {
[INFO] [stdout]     |      --------- variants in this enum
[INFO] [stdout] 194 |     Replace(NodeIndex, Operator),
[INFO] [stdout] 195 |     Connect(TransformIndex, TransformIndex),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 196 |     Disconnect(TransformIndex, TransformIndex),
[INFO] [stdout] 197 |     Create(Operator)
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Transform` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `Command { std: "docker" "inspect" "4bb15bb9c943ba765810561555c84e75dc1bbccbb4bc49aca9891fefd78fa19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb15bb9c943ba765810561555c84e75dc1bbccbb4bc49aca9891fefd78fa19d", kill_on_drop: false }`
[INFO] [stdout] 4bb15bb9c943ba765810561555c84e75dc1bbccbb4bc49aca9891fefd78fa19d