[INFO] cloning repository https://github.com/MaxLuchs/trait_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MaxLuchs/trait_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxLuchs%2Ftrait_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxLuchs%2Ftrait_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5438aa2405900cbe900ee57a6f420d5522e1b090
[INFO] building MaxLuchs/trait_test against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxLuchs%2Ftrait_test" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MaxLuchs/trait_test on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MaxLuchs/trait_test
[INFO] finished tweaking git repo https://github.com/MaxLuchs/trait_test
[INFO] tweaked toml for git repo https://github.com/MaxLuchs/trait_test written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MaxLuchs/trait_test 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb8d70a41e25b8a22f9c2d1d20d6e54fd2f6b061ab19c5e337b06b2b2ccb4c73
[INFO] running `Command { std: "docker" "start" "-a" "cb8d70a41e25b8a22f9c2d1d20d6e54fd2f6b061ab19c5e337b06b2b2ccb4c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb8d70a41e25b8a22f9c2d1d20d6e54fd2f6b061ab19c5e337b06b2b2ccb4c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb8d70a41e25b8a22f9c2d1d20d6e54fd2f6b061ab19c5e337b06b2b2ccb4c73", kill_on_drop: false }`
[INFO] [stdout] cb8d70a41e25b8a22f9c2d1d20d6e54fd2f6b061ab19c5e337b06b2b2ccb4c73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9588a0a6e6cbad1799451cfabe32369a1b01e889d599049820937a54759a61a
[INFO] running `Command { std: "docker" "start" "-a" "e9588a0a6e6cbad1799451cfabe32369a1b01e889d599049820937a54759a61a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling trait_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/employee.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Employee {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `doctor_titles` is never read
[INFO] [stdout]   --> src/professor.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Professor {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |     doctor_titles: Vec<DoctorTitles>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `student::Student`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     student::Student,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "e9588a0a6e6cbad1799451cfabe32369a1b01e889d599049820937a54759a61a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9588a0a6e6cbad1799451cfabe32369a1b01e889d599049820937a54759a61a", kill_on_drop: false }`
[INFO] [stdout] e9588a0a6e6cbad1799451cfabe32369a1b01e889d599049820937a54759a61a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ec72fd788d9d3addab2c321ecec56179b813b2106fe770accf06eb9ad5d1a2f
[INFO] running `Command { std: "docker" "start" "-a" "9ec72fd788d9d3addab2c321ecec56179b813b2106fe770accf06eb9ad5d1a2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling trait_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/employee.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Employee {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `doctor_titles` is never read
[INFO] [stdout]   --> src/professor.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Professor {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |     doctor_titles: Vec<DoctorTitles>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `student::Student`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     student::Student,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/employee.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Employee {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `doctor_titles` is never read
[INFO] [stdout]   --> src/professor.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Professor {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |     doctor_titles: Vec<DoctorTitles>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "9ec72fd788d9d3addab2c321ecec56179b813b2106fe770accf06eb9ad5d1a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ec72fd788d9d3addab2c321ecec56179b813b2106fe770accf06eb9ad5d1a2f", kill_on_drop: false }`
[INFO] [stdout] 9ec72fd788d9d3addab2c321ecec56179b813b2106fe770accf06eb9ad5d1a2f