[INFO] fetching crate mailing-list 0.4.0...
[INFO] checking mailing-list-0.4.0 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate mailing-list 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mailing-list 0.4.0
[INFO] finished tweaking crates.io crate mailing-list 0.4.0
[INFO] tweaked toml for crates.io crate mailing-list 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mailing-list 0.4.0 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mailing-list 0.4.0 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 | homepage = "https://github.com/Ung-Data-Falun/mailing-list"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 | repository = "https://github.com/Ung-Data-Falun/mailing-list"
[INFO] [stderr]    |              ------------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `mailing-list` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 05f75ad39c88b7b3475f1fc2e1e38f8677cddb0764680aa7c39b9c49b15bddc3
[INFO] running `Command { std: "docker" "start" "05f75ad39c88b7b3475f1fc2e1e38f8677cddb0764680aa7c39b9c49b15bddc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05f75ad39c88b7b3475f1fc2e1e38f8677cddb0764680aa7c39b9c49b15bddc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "05f75ad39c88b7b3475f1fc2e1e38f8677cddb0764680aa7c39b9c49b15bddc3" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05f75ad39c88b7b3475f1fc2e1e38f8677cddb0764680aa7c39b9c49b15bddc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "05f75ad39c88b7b3475f1fc2e1e38f8677cddb0764680aa7c39b9c49b15bddc3" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 | homepage = "https://github.com/Ung-Data-Falun/mailing-list"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 | repository = "https://github.com/Ung-Data-Falun/mailing-list"
[INFO] [stderr]    |              ------------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `mailing-list` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.153
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[INFO] [stderr]     Checking mailing-list v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `from`, `to`, and `payload` are never read
[INFO] [stdout]   --> src/client_handler.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Mail {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 34 |     pub from: Sender,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 35 |     pub to: Vec<Reciever>,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 36 |     pub payload: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Mail` 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] error: useless conversion to the same type: `std::net::IpAddr`
[INFO] [stdout]    --> src/send_mail.rs:105:14
[INFO] [stdout]     |
[INFO] [stdout] 105 |         ip = record.into();
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 105 -         ip = record.into();
[INFO] [stdout] 105 +         ip = record;
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 105 -         ip = record.into();
[INFO] [stdout] 105 +         ip = <std::net::IpAddr as Into<_>>::into(record);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `from`, `to`, and `payload` are never read
[INFO] [stdout]   --> src/client_handler.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Mail {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 34 |     pub from: Sender,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 35 |     pub to: Vec<Reciever>,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 36 |     pub payload: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Mail` 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] [stderr] error: could not compile `mailing-list` (bin "mailing-list") due to 1 previous error; 1 warning emitted
[INFO] [stdout] error: useless conversion to the same type: `std::net::IpAddr`
[INFO] [stdout]    --> src/send_mail.rs:105:14
[INFO] [stdout]     |
[INFO] [stdout] 105 |         ip = record.into();
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 105 -         ip = record.into();
[INFO] [stdout] 105 +         ip = record;
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 105 -         ip = record.into();
[INFO] [stdout] 105 +         ip = <std::net::IpAddr as Into<_>>::into(record);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mailing-list` (bin "mailing-list" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: unused dependency `serde_json`
[INFO] [stderr]   --> Cargo.toml:24:15
[INFO] [stderr]    |
[INFO] [stderr] 24 | [dependencies.serde_json]
[INFO] [stderr]    |               ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `serde_json`
[INFO] [stderr] warning: `mailing-list` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "05f75ad39c88b7b3475f1fc2e1e38f8677cddb0764680aa7c39b9c49b15bddc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f75ad39c88b7b3475f1fc2e1e38f8677cddb0764680aa7c39b9c49b15bddc3", kill_on_drop: false }`
[INFO] [stdout] 05f75ad39c88b7b3475f1fc2e1e38f8677cddb0764680aa7c39b9c49b15bddc3
