[INFO] cloning repository https://github.com/cryslith/gadget-down
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cryslith/gadget-down" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcryslith%2Fgadget-down", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcryslith%2Fgadget-down'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8bcbdc24337806d51ea899ede64063dbfbc6e0b4
[INFO] checking cryslith/gadget-down/8bcbdc24337806d51ea899ede64063dbfbc6e0b4 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcryslith%2Fgadget-down" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cryslith/gadget-down on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cryslith/gadget-down
[INFO] finished tweaking git repo https://github.com/cryslith/gadget-down
[INFO] tweaked toml for git repo https://github.com/cryslith/gadget-down written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cryslith/gadget-down 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/cryslith/refinery`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.2
[INFO] [stderr]   Downloaded serde_yaml v0.9.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff93faa984a891d0528af879cf09f016c9f6284465dbb3340d67192786f3e475
[INFO] running `Command { std: "docker" "start" "-a" "ff93faa984a891d0528af879cf09f016c9f6284465dbb3340d67192786f3e475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff93faa984a891d0528af879cf09f016c9f6284465dbb3340d67192786f3e475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff93faa984a891d0528af879cf09f016c9f6284465dbb3340d67192786f3e475", kill_on_drop: false }`
[INFO] [stdout] ff93faa984a891d0528af879cf09f016c9f6284465dbb3340d67192786f3e475
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fcb4d2aa2e44d1364f9f6ac0e781a2c75599c7126f607d177bb317ec82152f6
[INFO] running `Command { std: "docker" "start" "-a" "3fcb4d2aa2e44d1364f9f6ac0e781a2c75599c7126f607d177bb317ec82152f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking unsafe-libyaml v0.2.2
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking refinery v0.1.1 (https://github.com/cryslith/refinery?branch=expose-rev-partition#0ac844f3)
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking serde_yaml v0.9.9
[INFO] [stderr]     Checking gadget-down v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `l1`
[INFO] [stdout]    --> src/lib.rs:275:13
[INFO] [stdout]     |
[INFO] [stdout] 275 |       for ((l1, l2), v) in transitions_into_a.into_iter().sorted_by_key(|&(k, _)| k) {
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_l1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l2`
[INFO] [stdout]    --> src/lib.rs:275:17
[INFO] [stdout]     |
[INFO] [stdout] 275 |       for ((l1, l2), v) in transitions_into_a.into_iter().sorted_by_key(|&(k, _)| k) {
[INFO] [stdout]     |                 ^^ help: if this is intentional, prefix it with an underscore: `_l2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partition`
[INFO] [stdout]    --> src/lib.rs:278:49
[INFO] [stdout]     |
[INFO] [stdout] 278 |         partition.refine_with_callback(&v[..], |partition, orig, new| {
[INFO] [stdout]     |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l1`
[INFO] [stdout]    --> src/lib.rs:275:13
[INFO] [stdout]     |
[INFO] [stdout] 275 |       for ((l1, l2), v) in transitions_into_a.into_iter().sorted_by_key(|&(k, _)| k) {
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_l1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l2`
[INFO] [stdout]    --> src/lib.rs:275:17
[INFO] [stdout]     |
[INFO] [stdout] 275 |       for ((l1, l2), v) in transitions_into_a.into_iter().sorted_by_key(|&(k, _)| k) {
[INFO] [stdout]     |                 ^^ help: if this is intentional, prefix it with an underscore: `_l2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partition`
[INFO] [stdout]    --> src/lib.rs:278:49
[INFO] [stdout]     |
[INFO] [stdout] 278 |         partition.refine_with_callback(&v[..], |partition, orig, new| {
[INFO] [stdout]     |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Name` is never used
[INFO] [stdout]   --> src/lib.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | type Name = usize;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `renumber_states` is never used
[INFO] [stdout]    --> src/lib.rs:161:6
[INFO] [stdout]     |
[INFO] [stdout] 31  | impl Transitions {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 161 |   fn renumber_states(&self, p: &[State]) -> Self {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GadgetSpec` is never constructed
[INFO] [stdout]    --> src/lib.rs:405:8
[INFO] [stdout]     |
[INFO] [stdout] 405 | struct GadgetSpec {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Network` is never constructed
[INFO] [stdout]    --> src/lib.rs:413:8
[INFO] [stdout]     |
[INFO] [stdout] 413 | struct Network {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `reverse_location_map`, `neighbors`, `transitions`, and `is_accepting` are never used
[INFO] [stdout]    --> src/lib.rs:424:6
[INFO] [stdout]     |
[INFO] [stdout] 422 | impl Network {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] 423 |   // network location -> [(gadgetspec index, location)]
[INFO] [stdout] 424 |   fn reverse_location_map(&self) -> Vec<Vec<(usize, Location)>> {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 438 |   fn neighbors<'a>(
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 466 |   fn transitions(&self, defs: &[Transitions]) -> Transitions {
[INFO] [stdout]     |      ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 543 |   fn is_accepting(&self, defs: &[Transitions], state: &Vec<State>) -> bool {
[INFO] [stdout]     |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]  --> src/main.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |   for (i, format::Gadget { g, determinize, minimize }) in inputs.into_iter().enumerate() {
[INFO] [stdout]   |        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/main.rs:12:33
[INFO] [stdout]    |
[INFO] [stdout] 12 |       GadgetDescriptor::Network(n) => {
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/main.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 |       GadgetDescriptor::PostSelect(n) => {
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]  --> src/main.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |   for (i, format::Gadget { g, determinize, minimize }) in inputs.into_iter().enumerate() {
[INFO] [stdout]   |        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/main.rs:12:33
[INFO] [stdout]    |
[INFO] [stdout] 12 |       GadgetDescriptor::Network(n) => {
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/main.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 |       GadgetDescriptor::PostSelect(n) => {
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.99s
[INFO] running `Command { std: "docker" "inspect" "3fcb4d2aa2e44d1364f9f6ac0e781a2c75599c7126f607d177bb317ec82152f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fcb4d2aa2e44d1364f9f6ac0e781a2c75599c7126f607d177bb317ec82152f6", kill_on_drop: false }`
[INFO] [stdout] 3fcb4d2aa2e44d1364f9f6ac0e781a2c75599c7126f607d177bb317ec82152f6