[INFO] cloning repository https://github.com/matthewjberger/rust-crash-course
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthewjberger/rust-crash-course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewjberger%2Frust-crash-course", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewjberger%2Frust-crash-course'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 167c8f0d606cd4108ee126766fd4ab55341de330
[INFO] building matthewjberger/rust-crash-course 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%2Fmatthewjberger%2Frust-crash-course" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matthewjberger/rust-crash-course 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/matthewjberger/rust-crash-course
[INFO] finished tweaking git repo https://github.com/matthewjberger/rust-crash-course
[INFO] tweaked toml for git repo https://github.com/matthewjberger/rust-crash-course written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/matthewjberger/rust-crash-course 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] [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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 07fd6101ba50b9a1370f1aaf1bea415da7f852337dc5c84d0b28b058b34e6150
[INFO] running `Command { std: "docker" "start" "-a" "07fd6101ba50b9a1370f1aaf1bea415da7f852337dc5c84d0b28b058b34e6150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07fd6101ba50b9a1370f1aaf1bea415da7f852337dc5c84d0b28b058b34e6150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07fd6101ba50b9a1370f1aaf1bea415da7f852337dc5c84d0b28b058b34e6150", kill_on_drop: false }`
[INFO] [stdout] 07fd6101ba50b9a1370f1aaf1bea415da7f852337dc5c84d0b28b058b34e6150
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 10f59f061365f32cd65effd10f8dac66e0de013658302a7889d1fc659882d88f
[INFO] running `Command { std: "docker" "start" "-a" "10f59f061365f32cd65effd10f8dac66e0de013658302a7889d1fc659882d88f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rust-crash-course v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/dog.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl Bone {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 83 |     pub fn new(kind: BoneKind) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `TurkeyAndStuffing` and `PeanutButter` are never constructed
[INFO] [stdout]   --> src/dog.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub(crate) enum BoneKind {
[INFO] [stdout]    |                 -------- variants in this enum
[INFO] [stdout] 96 |     BaconFlavored,
[INFO] [stdout] 97 |     TurkeyAndStuffing,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 98 |     PeanutButter,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BoneKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `Command { std: "docker" "inspect" "10f59f061365f32cd65effd10f8dac66e0de013658302a7889d1fc659882d88f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f59f061365f32cd65effd10f8dac66e0de013658302a7889d1fc659882d88f", kill_on_drop: false }`
[INFO] [stdout] 10f59f061365f32cd65effd10f8dac66e0de013658302a7889d1fc659882d88f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2a703f10283f1374c4f473e3c5122abeb962c974a1f2322429af3f542cb67c43
[INFO] running `Command { std: "docker" "start" "-a" "2a703f10283f1374c4f473e3c5122abeb962c974a1f2322429af3f542cb67c43", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-crash-course v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/dog.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl Bone {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 83 |     pub fn new(kind: BoneKind) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `TurkeyAndStuffing` and `PeanutButter` are never constructed
[INFO] [stdout]   --> src/dog.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub(crate) enum BoneKind {
[INFO] [stdout]    |                 -------- variants in this enum
[INFO] [stdout] 96 |     BaconFlavored,
[INFO] [stdout] 97 |     TurkeyAndStuffing,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 98 |     PeanutButter,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BoneKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "2a703f10283f1374c4f473e3c5122abeb962c974a1f2322429af3f542cb67c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a703f10283f1374c4f473e3c5122abeb962c974a1f2322429af3f542cb67c43", kill_on_drop: false }`
[INFO] [stdout] 2a703f10283f1374c4f473e3c5122abeb962c974a1f2322429af3f542cb67c43