[INFO] cloning repository https://github.com/vixeven/design-patterns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vixeven/design-patterns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvixeven%2Fdesign-patterns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvixeven%2Fdesign-patterns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c82b5a6b68b4be2cfe3def2b826e08c7dc707ca3
[INFO] checking vixeven/design-patterns against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvixeven%2Fdesign-patterns" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vixeven/design-patterns
[INFO] finished tweaking git repo https://github.com/vixeven/design-patterns
[INFO] tweaked toml for git repo https://github.com/vixeven/design-patterns written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vixeven/design-patterns on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vixeven/design-patterns 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4c2365f3e4b16d075d8ee3eb761a0fb210f66d125d8dc838c07d7dd69f70fc2
[INFO] running `Command { std: "docker" "start" "-a" "f4c2365f3e4b16d075d8ee3eb761a0fb210f66d125d8dc838c07d7dd69f70fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4c2365f3e4b16d075d8ee3eb761a0fb210f66d125d8dc838c07d7dd69f70fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c2365f3e4b16d075d8ee3eb761a0fb210f66d125d8dc838c07d7dd69f70fc2", kill_on_drop: false }`
[INFO] [stdout] f4c2365f3e4b16d075d8ee3eb761a0fb210f66d125d8dc838c07d7dd69f70fc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 192f42c964adba5f79a1aa1a23d1c931097ee99f8a4cd15e5533d802d0887991
[INFO] running `Command { std: "docker" "start" "-a" "192f42c964adba5f79a1aa1a23d1c931097ee99f8a4cd15e5533d802d0887991", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling serde_derive v1.0.163
[INFO] [stderr]     Checking expense-tracker-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `description`, `amount`, and `category` are never read
[INFO] [stdout]   --> src/expense_manager.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct PartialExpense {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 10 |     pub description: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 11 |     pub amount: f64,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 12 |     pub category: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PartialExpense` has derived impls for the traits `Clone` and `Debug`, but these are 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: trait `Observer` is never used
[INFO] [stdout]   --> src/observer.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait Observer {
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/observer.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |             .retain(|&x| x != listener);
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]    |
[INFO] [stdout] 32 -             .retain(|&x| x != listener);
[INFO] [stdout] 32 +             .retain(|&x| !std::ptr::fn_addr_eq(x, listener));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `description`, `amount`, and `category` are never read
[INFO] [stdout]   --> src/expense_manager.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct PartialExpense {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 10 |     pub description: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 11 |     pub amount: f64,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 12 |     pub category: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PartialExpense` has derived impls for the traits `Clone` and `Debug`, but these are 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: trait `Observer` is never used
[INFO] [stdout]   --> src/observer.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait Observer {
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/observer.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |             .retain(|&x| x != listener);
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]    |
[INFO] [stdout] 32 -             .retain(|&x| x != listener);
[INFO] [stdout] 32 +             .retain(|&x| !std::ptr::fn_addr_eq(x, listener));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.81s
[INFO] running `Command { std: "docker" "inspect" "192f42c964adba5f79a1aa1a23d1c931097ee99f8a4cd15e5533d802d0887991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "192f42c964adba5f79a1aa1a23d1c931097ee99f8a4cd15e5533d802d0887991", kill_on_drop: false }`
[INFO] [stdout] 192f42c964adba5f79a1aa1a23d1c931097ee99f8a4cd15e5533d802d0887991
