[INFO] cloning repository https://github.com/PrakharSrivastav/code-challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PrakharSrivastav/code-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrakharSrivastav%2Fcode-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrakharSrivastav%2Fcode-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3455b1721592109fc19f8da23ca627310a07da13
[INFO] building PrakharSrivastav/code-challenge 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%2FPrakharSrivastav%2Fcode-challenge" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PrakharSrivastav/code-challenge 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/PrakharSrivastav/code-challenge
[INFO] finished tweaking git repo https://github.com/PrakharSrivastav/code-challenge
[INFO] tweaked toml for git repo https://github.com/PrakharSrivastav/code-challenge written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/PrakharSrivastav/code-challenge 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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] fd421ec06199166bf019f55173f736e0e42c71f4384764dcc61c0845a770cf29
[INFO] running `Command { std: "docker" "start" "-a" "fd421ec06199166bf019f55173f736e0e42c71f4384764dcc61c0845a770cf29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd421ec06199166bf019f55173f736e0e42c71f4384764dcc61c0845a770cf29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd421ec06199166bf019f55173f736e0e42c71f4384764dcc61c0845a770cf29", kill_on_drop: false }`
[INFO] [stdout] fd421ec06199166bf019f55173f736e0e42c71f4384764dcc61c0845a770cf29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a0484b5ad2ebef55d1a5eac80b547089d150e51bca6c1225128d5ed75629c8cb
[INFO] running `Command { std: "docker" "start" "-a" "a0484b5ad2ebef55d1a5eac80b547089d150e51bca6c1225128d5ed75629c8cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling fastrand v2.0.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling chrono v0.4.26
[INFO] [stderr]    Compiling tempfile v3.8.0
[INFO] [stderr]    Compiling code-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `MorseCode` is never used
[INFO] [stdout]  --> src/morse.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait MorseCode {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Short` and `Long` are never constructed
[INFO] [stdout]   --> src/morse.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum Pulse {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] 14 |     Short,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     Long,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pulse` 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 4.82s
[INFO] running `Command { std: "docker" "inspect" "a0484b5ad2ebef55d1a5eac80b547089d150e51bca6c1225128d5ed75629c8cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0484b5ad2ebef55d1a5eac80b547089d150e51bca6c1225128d5ed75629c8cb", kill_on_drop: false }`
[INFO] [stdout] a0484b5ad2ebef55d1a5eac80b547089d150e51bca6c1225128d5ed75629c8cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4499fea2c3aa869a29a41e10ee368733a59b76edb318f6f445fe7cc88315a7f9
[INFO] running `Command { std: "docker" "start" "-a" "4499fea2c3aa869a29a41e10ee368733a59b76edb318f6f445fe7cc88315a7f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling code-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `MorseCode` is never used
[INFO] [stdout]  --> src/morse.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait MorseCode {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Short` and `Long` are never constructed
[INFO] [stdout]   --> src/morse.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum Pulse {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] 14 |     Short,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     Long,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pulse` 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 4.40s
[INFO] running `Command { std: "docker" "inspect" "4499fea2c3aa869a29a41e10ee368733a59b76edb318f6f445fe7cc88315a7f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4499fea2c3aa869a29a41e10ee368733a59b76edb318f6f445fe7cc88315a7f9", kill_on_drop: false }`
[INFO] [stdout] 4499fea2c3aa869a29a41e10ee368733a59b76edb318f6f445fe7cc88315a7f9