[INFO] cloning repository https://github.com/verrchu/refmail
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/verrchu/refmail" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fverrchu%2Frefmail", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fverrchu%2Frefmail'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d7cfc23a1c4d3ba6ee86a94fa89d8fcee573ef2
[INFO] checking verrchu/refmail against master#f5e2df741b4a9820a7579f0c8eccc951706a8782 for pr-147984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fverrchu%2Frefmail" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/verrchu/refmail
[INFO] finished tweaking git repo https://github.com/verrchu/refmail
[INFO] tweaked toml for git repo https://github.com/verrchu/refmail written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/verrchu/refmail on toolchain f5e2df741b4a9820a7579f0c8eccc951706a8782
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/verrchu/refmail 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" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] d38aaab4550a662f046e3fb940695cf4754d2c12bcc74bbb7d7270f9025be2bb
[INFO] running `Command { std: "docker" "start" "-a" "d38aaab4550a662f046e3fb940695cf4754d2c12bcc74bbb7d7270f9025be2bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d38aaab4550a662f046e3fb940695cf4754d2c12bcc74bbb7d7270f9025be2bb", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b02e4f9986af175a8269ba9c929293a241452e6a74e590645ee4e11bca63bf2a
[INFO] running `Command { std: "docker" "start" "-a" "b02e4f9986af175a8269ba9c929293a241452e6a74e590645ee4e11bca63bf2a", kill_on_drop: false }`
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[INFO] [stderr]     Checking serde v1.0.144
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[INFO] [stderr]     Checking refmail v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `url::Url`
[INFO] [stdout]  --> src/sections/conference_talk.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use url::Url;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::types`
[INFO] [stdout]  --> src/sections/hackathon.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::types;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hackathon::Hackathon`
[INFO] [stdout]  --> src/sections/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hackathon::Hackathon;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Referee` and `Referrer`
[INFO] [stdout]   --> src/main.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | use types::{Referee, Referrer};
[INFO] [stdout]    |             ^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `url::Url`
[INFO] [stdout]  --> src/sections/conference_talk.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use url::Url;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::types`
[INFO] [stdout]  --> src/sections/hackathon.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::types;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hackathon::Hackathon`
[INFO] [stdout]  --> src/sections/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hackathon::Hackathon;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Referee` and `Referrer`
[INFO] [stdout]   --> src/main.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | use types::{Referee, Referrer};
[INFO] [stdout]    |             ^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Conclusion` is never constructed
[INFO] [stdout]   --> src/main.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Conclusion;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Background` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Background;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Acquintance` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct Acquintance;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Entrepreneurship` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Entrepreneurship;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Volunteering` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Volunteering;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Publications` is never used
[INFO] [stdout]   --> src/sections/mod.rs:56:6
[INFO] [stdout]    |
[INFO] [stdout] 56 | enum Publications {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpenSourceContribution` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | struct OpenSourceContribution;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExpertRoles` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | struct ExpertRoles;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpenSourceContributions` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct OpenSourceContributions;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Olympiads` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | struct Olympiads;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Hackathon` is never constructed
[INFO] [stdout]  --> src/sections/hackathon.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(super) struct Hackathon {
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Gender` is never used
[INFO] [stdout]   --> src/types.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Gender {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Conclusion` is never constructed
[INFO] [stdout]   --> src/main.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Conclusion;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `load_from` is never used
[INFO] [stdout]   --> src/config.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Config {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn load_from(path: impl AsRef<Path>) -> anyhow::Result<Self> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Background` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Background;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Acquintance` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct Acquintance;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Entrepreneurship` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Entrepreneurship;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Volunteering` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Volunteering;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Publications` is never used
[INFO] [stdout]   --> src/sections/mod.rs:56:6
[INFO] [stdout]    |
[INFO] [stdout] 56 | enum Publications {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpenSourceContribution` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | struct OpenSourceContribution;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExpertRoles` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | struct ExpertRoles;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpenSourceContributions` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct OpenSourceContributions;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Olympiads` is never constructed
[INFO] [stdout]   --> src/sections/mod.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | struct Olympiads;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Hackathon` is never constructed
[INFO] [stdout]  --> src/sections/hackathon.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(super) struct Hackathon {
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Gender` is never used
[INFO] [stdout]   --> src/types.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Gender {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.09s
[INFO] running `Command { std: "docker" "inspect" "b02e4f9986af175a8269ba9c929293a241452e6a74e590645ee4e11bca63bf2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b02e4f9986af175a8269ba9c929293a241452e6a74e590645ee4e11bca63bf2a", kill_on_drop: false }`
[INFO] [stdout] b02e4f9986af175a8269ba9c929293a241452e6a74e590645ee4e11bca63bf2a