[INFO] cloning repository https://github.com/Harmful-Alchemist/again
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Harmful-Alchemist/again" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarmful-Alchemist%2Fagain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarmful-Alchemist%2Fagain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 828a51f313c1ed39776a04ad4d4b017f97b60f9f
[INFO] checking Harmful-Alchemist/again against master#9e293ae9f8abecb0be5105787d181518c9012a19 for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarmful-Alchemist%2Fagain" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Harmful-Alchemist/again
[INFO] finished tweaking git repo https://github.com/Harmful-Alchemist/again
[INFO] tweaked toml for git repo https://github.com/Harmful-Alchemist/again written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Harmful-Alchemist/again on toolchain 9e293ae9f8abecb0be5105787d181518c9012a19
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Harmful-Alchemist/again 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" "+9e293ae9f8abecb0be5105787d181518c9012a19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded similar v2.7.0
[INFO] [stderr]   Downloaded insta v1.43.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e2f95f6438d903833f0073f2b22295b12b66f2427db9a7365501d4821c53bcc
[INFO] running `Command { std: "docker" "start" "-a" "8e2f95f6438d903833f0073f2b22295b12b66f2427db9a7365501d4821c53bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e2f95f6438d903833f0073f2b22295b12b66f2427db9a7365501d4821c53bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e2f95f6438d903833f0073f2b22295b12b66f2427db9a7365501d4821c53bcc", kill_on_drop: false }`
[INFO] [stdout] 8e2f95f6438d903833f0073f2b22295b12b66f2427db9a7365501d4821c53bcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0ff4c5ae9c1d7d33294d6649365ee85bc5923f45bd9cc4300e1513386e7356e
[INFO] running `Command { std: "docker" "start" "-a" "e0ff4c5ae9c1d7d33294d6649365ee85bc5923f45bd9cc4300e1513386e7356e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking similar v2.7.0
[INFO] [stderr]     Checking again v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `head` and `mapping` are never read
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Query {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 36 |     head: RelationId,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 37 |     mapping: HashMap<&'static str, Identifier>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Query` 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: struct `Fact` is never constructed
[INFO] [stdout]   --> src/lib.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | struct Fact {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `update` are never used
[INFO] [stdout]   --> src/lib.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Fact {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 47 |     fn new(head: RelationId, params: Vec<ReifiedVariable>) -> Box<Self> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn update(frame: &Frame, new_frame: &mut Frame, i: usize, var: &'static str) -> Option<()> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | impl Evaluator {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 94 |     fn new(database: Rc<Database>, query: Query) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking insta v1.43.1
[INFO] [stdout] warning: unused import: `insta::assert_debug_snapshot`
[INFO] [stdout]    --> src/lib.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |     use insta::assert_debug_snapshot;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mapping` is never read
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Query {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 36 |     head: RelationId,
[INFO] [stdout] 37 |     mapping: HashMap<&'static str, Identifier>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Query` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "e0ff4c5ae9c1d7d33294d6649365ee85bc5923f45bd9cc4300e1513386e7356e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ff4c5ae9c1d7d33294d6649365ee85bc5923f45bd9cc4300e1513386e7356e", kill_on_drop: false }`
[INFO] [stdout] e0ff4c5ae9c1d7d33294d6649365ee85bc5923f45bd9cc4300e1513386e7356e