[INFO] cloning repository https://github.com/mananuf/traits
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mananuf/traits" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmananuf%2Ftraits", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmananuf%2Ftraits'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38f9d80cce2da1fc799233d2560736fa0803a942
[INFO] checking mananuf/traits against try#d83b14207998f47b18a34e930157ac0d7c18b16e for pr-149137
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmananuf%2Ftraits" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mananuf/traits
[INFO] finished tweaking git repo https://github.com/mananuf/traits
[INFO] tweaked toml for git repo https://github.com/mananuf/traits written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mananuf/traits on toolchain d83b14207998f47b18a34e930157ac0d7c18b16e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mananuf/traits 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" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ecf8362a445fcf9ac1303939541f9a76a4d6782f84802e7fc6653ef99a6a773
[INFO] running `Command { std: "docker" "start" "-a" "6ecf8362a445fcf9ac1303939541f9a76a4d6782f84802e7fc6653ef99a6a773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ecf8362a445fcf9ac1303939541f9a76a4d6782f84802e7fc6653ef99a6a773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ecf8362a445fcf9ac1303939541f9a76a4d6782f84802e7fc6653ef99a6a773", kill_on_drop: false }`
[INFO] [stdout] 6ecf8362a445fcf9ac1303939541f9a76a4d6782f84802e7fc6653ef99a6a773
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1df59ee30aefd902dbfe29229e700762422475b47e69947dffd982b2ad0a464
[INFO] running `Command { std: "docker" "start" "-a" "e1df59ee30aefd902dbfe29229e700762422475b47e69947dffd982b2ad0a464", kill_on_drop: false }`
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Light` is never constructed
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum SkinColor {
[INFO] [stdout]   |      --------- variant in this enum
[INFO] [stdout] 3 |     Black,
[INFO] [stdout] 4 |     Light,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SkinColor` has a derived impl for the trait `Debug`, 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: fields `state`, `city`, and `country` are never read
[INFO] [stdout]   --> src/main.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | struct Address {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout]  9 |     state: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     city: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     country: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Address` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `age`, `sex`, `is_married`, and `skin_color` are never read
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct BioData {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     age: u8,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 29 |     sex: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 30 |     is_married: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     skin_color: SkinColor,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BioData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tutor` is never constructed
[INFO] [stdout]   --> src/main.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Tutor {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/main.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | impl Tutor {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 73 |     fn new(
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `attendance` is never used
[INFO] [stdout]    --> src/main.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | trait Person: Debug {
[INFO] [stdout]     |       ------ method in this trait
[INFO] [stdout] 120 |     fn attendance(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Light` is never constructed
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum SkinColor {
[INFO] [stdout]   |      --------- variant in this enum
[INFO] [stdout] 3 |     Black,
[INFO] [stdout] 4 |     Light,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SkinColor` has a derived impl for the trait `Debug`, 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: fields `state`, `city`, and `country` are never read
[INFO] [stdout]   --> src/main.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | struct Address {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout]  9 |     state: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     city: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     country: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Address` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `age`, `sex`, `is_married`, and `skin_color` are never read
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct BioData {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     age: u8,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 29 |     sex: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 30 |     is_married: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     skin_color: SkinColor,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BioData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tutor` is never constructed
[INFO] [stdout]   --> src/main.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Tutor {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/main.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | impl Tutor {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 73 |     fn new(
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `attendance` is never used
[INFO] [stdout]    --> src/main.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | trait Person: Debug {
[INFO] [stdout]     |       ------ method in this trait
[INFO] [stdout] 120 |     fn attendance(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "e1df59ee30aefd902dbfe29229e700762422475b47e69947dffd982b2ad0a464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1df59ee30aefd902dbfe29229e700762422475b47e69947dffd982b2ad0a464", kill_on_drop: false }`
[INFO] [stdout] e1df59ee30aefd902dbfe29229e700762422475b47e69947dffd982b2ad0a464