[INFO] cloning repository https://github.com/salmern/rust_tut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/salmern/rust_tut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsalmern%2Frust_tut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsalmern%2Frust_tut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f92093031ad74fd3c9f5df0b068fd331c06105b
[INFO] building salmern/rust_tut against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsalmern%2Frust_tut" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/salmern/rust_tut on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/salmern/rust_tut
[INFO] finished tweaking git repo https://github.com/salmern/rust_tut
[INFO] tweaked toml for git repo https://github.com/salmern/rust_tut written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/salmern/rust_tut 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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_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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5b41897c62f819d534fe4a00e6180fab7fc10d42767f4c9556f57701abe940c
[INFO] running `Command { std: "docker" "start" "-a" "f5b41897c62f819d534fe4a00e6180fab7fc10d42767f4c9556f57701abe940c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5b41897c62f819d534fe4a00e6180fab7fc10d42767f4c9556f57701abe940c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5b41897c62f819d534fe4a00e6180fab7fc10d42767f4c9556f57701abe940c", kill_on_drop: false }`
[INFO] [stdout] f5b41897c62f819d534fe4a00e6180fab7fc10d42767f4c9556f57701abe940c
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af2f72f3e4580f3df5972872f3731db29459faff2b8dd08ab09f5f4c4e224bd3
[INFO] running `Command { std: "docker" "start" "-a" "af2f72f3e4580f3df5972872f3731db29459faff2b8dd08ab09f5f4c4e224bd3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_tut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Director` and `Worker` are never constructed
[INFO] [stdout]  --> src/bin/derive.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Position{
[INFO] [stdout]   |      -------- variants in this enum
[INFO] [stdout] 3 |     Manager,
[INFO] [stdout] 4 |     Director,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 5 |     Worker
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Position` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `work_hour` is never read
[INFO] [stdout]   --> src/bin/derive.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Employee{
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 9  |     position: Position,
[INFO] [stdout] 10 |     work_hour: i32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Employee` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Red` and `Blue` are never constructed
[INFO] [stdout]   --> src/bin/enum.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | enum Direction{
[INFO] [stdout]    |      --------- variants in this enum
[INFO] [stdout] 25 |     Red,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 26 |    Green,
[INFO] [stdout] 27 |    Blue,
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "af2f72f3e4580f3df5972872f3731db29459faff2b8dd08ab09f5f4c4e224bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af2f72f3e4580f3df5972872f3731db29459faff2b8dd08ab09f5f4c4e224bd3", kill_on_drop: false }`
[INFO] [stdout] af2f72f3e4580f3df5972872f3731db29459faff2b8dd08ab09f5f4c4e224bd3
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8329d45dba57ced9a881a6b7e6368be96eead90bf06be06d06b85d36bd45b74
[INFO] running `Command { std: "docker" "start" "-a" "a8329d45dba57ced9a881a6b7e6368be96eead90bf06be06d06b85d36bd45b74", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_tut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Director` and `Worker` are never constructed
[INFO] [stdout]  --> src/bin/derive.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Position{
[INFO] [stdout]   |      -------- variants in this enum
[INFO] [stdout] 3 |     Manager,
[INFO] [stdout] 4 |     Director,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 5 |     Worker
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Position` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `work_hour` is never read
[INFO] [stdout]   --> src/bin/derive.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Employee{
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 9  |     position: Position,
[INFO] [stdout] 10 |     work_hour: i32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Employee` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "a8329d45dba57ced9a881a6b7e6368be96eead90bf06be06d06b85d36bd45b74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8329d45dba57ced9a881a6b7e6368be96eead90bf06be06d06b85d36bd45b74", kill_on_drop: false }`
[INFO] [stdout] a8329d45dba57ced9a881a6b7e6368be96eead90bf06be06d06b85d36bd45b74