[INFO] cloning repository https://github.com/accesable/task-tracker-cli-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/accesable/task-tracker-cli-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faccesable%2Ftask-tracker-cli-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faccesable%2Ftask-tracker-cli-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7e5c3fbcc0e0a0fc3db9dfb2ec89deb9954faa7
[INFO] building accesable/task-tracker-cli-rust 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%2Faccesable%2Ftask-tracker-cli-rust" "/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/accesable/task-tracker-cli-rust 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/accesable/task-tracker-cli-rust
[INFO] finished tweaking git repo https://github.com/accesable/task-tracker-cli-rust
[INFO] tweaked toml for git repo https://github.com/accesable/task-tracker-cli-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/accesable/task-tracker-cli-rust 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] 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] 545c65b920d418107fc21a4d633f629c0d65be6f5ee2d5f855e86b295df0c62c
[INFO] running `Command { std: "docker" "start" "-a" "545c65b920d418107fc21a4d633f629c0d65be6f5ee2d5f855e86b295df0c62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "545c65b920d418107fc21a4d633f629c0d65be6f5ee2d5f855e86b295df0c62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "545c65b920d418107fc21a4d633f629c0d65be6f5ee2d5f855e86b295df0c62c", kill_on_drop: false }`
[INFO] [stdout] 545c65b920d418107fc21a4d633f629c0d65be6f5ee2d5f855e86b295df0c62c
[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] 677a45142dd19c3e72bb7dc9821ad30ff58424a8a9850cb0f6b0be8482856b12
[INFO] running `Command { std: "docker" "start" "-a" "677a45142dd19c3e72bb7dc9821ad30ff58424a8a9850cb0f6b0be8482856b12", kill_on_drop: false }`
[INFO] [stderr]    Compiling task_tracker_cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `TaskStatus` and `Task`
[INFO] [stdout]   --> src/main.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use task::{Task, TaskStatus};
[INFO] [stdout]    |            ^^^^  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_to_file` is never used
[INFO] [stdout]   --> src/main.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn write_to_file(filename: &str, content: &str) -> Result<bool> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `resolving_args` is never used
[INFO] [stdout]   --> src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn resolving_args(args: Vec<String>) -> Result<(String, u32, String)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InProgress`, `Todo`, and `Done` are never constructed
[INFO] [stdout]  --> src/task.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum TaskStatus {
[INFO] [stdout]   |          ---------- variants in this enum
[INFO] [stdout] 6 |     InProgress,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 7 |     Todo,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     Done,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TaskStatus` 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 `Task` is never constructed
[INFO] [stdout]   --> src/task.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Task {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Task` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `display`, and `serialize_task` are never used
[INFO] [stdout]   --> src/task.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Task {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 20 |     // Constructor for Task
[INFO] [stdout] 21 |     pub fn new(id: u32, task_name: String, task_state: TaskStatus) -> Task {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn display(&self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn serialize_task(&self) -> String{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "677a45142dd19c3e72bb7dc9821ad30ff58424a8a9850cb0f6b0be8482856b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "677a45142dd19c3e72bb7dc9821ad30ff58424a8a9850cb0f6b0be8482856b12", kill_on_drop: false }`
[INFO] [stdout] 677a45142dd19c3e72bb7dc9821ad30ff58424a8a9850cb0f6b0be8482856b12
[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] f66b1d636f023370fc2442a3a33511260e26f9cb519881ee8cc547d64a572286
[INFO] running `Command { std: "docker" "start" "-a" "f66b1d636f023370fc2442a3a33511260e26f9cb519881ee8cc547d64a572286", kill_on_drop: false }`
[INFO] [stderr]    Compiling task_tracker_cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `TaskStatus` and `Task`
[INFO] [stdout]   --> src/main.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use task::{Task, TaskStatus};
[INFO] [stdout]    |            ^^^^  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_to_file` is never used
[INFO] [stdout]   --> src/main.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn write_to_file(filename: &str, content: &str) -> Result<bool> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `resolving_args` is never used
[INFO] [stdout]   --> src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn resolving_args(args: Vec<String>) -> Result<(String, u32, String)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InProgress`, `Todo`, and `Done` are never constructed
[INFO] [stdout]  --> src/task.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum TaskStatus {
[INFO] [stdout]   |          ---------- variants in this enum
[INFO] [stdout] 6 |     InProgress,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 7 |     Todo,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     Done,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TaskStatus` 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 `Task` is never constructed
[INFO] [stdout]   --> src/task.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Task {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Task` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `display`, and `serialize_task` are never used
[INFO] [stdout]   --> src/task.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Task {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 20 |     // Constructor for Task
[INFO] [stdout] 21 |     pub fn new(id: u32, task_name: String, task_state: TaskStatus) -> Task {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn display(&self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn serialize_task(&self) -> String{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "f66b1d636f023370fc2442a3a33511260e26f9cb519881ee8cc547d64a572286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f66b1d636f023370fc2442a3a33511260e26f9cb519881ee8cc547d64a572286", kill_on_drop: false }`
[INFO] [stdout] f66b1d636f023370fc2442a3a33511260e26f9cb519881ee8cc547d64a572286