[INFO] cloning repository https://github.com/LoLoCrO/task-tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LoLoCrO/task-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLoLoCrO%2Ftask-tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLoLoCrO%2Ftask-tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e15b4108fa4f433528df196a6d58129e2f51314
[INFO] checking LoLoCrO/task-tracer against 760e1de835e253bf28bbcbfee38b5e8ed9ffe074 for pr-133502-26
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLoLoCrO%2Ftask-tracer" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/LoLoCrO/task-tracer
[INFO] finished tweaking git repo https://github.com/LoLoCrO/task-tracer
[INFO] tweaked toml for git repo https://github.com/LoLoCrO/task-tracer written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/LoLoCrO/task-tracer on toolchain 760e1de835e253bf28bbcbfee38b5e8ed9ffe074
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/LoLoCrO/task-tracer 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" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "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-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 895bcd3bda9043cb5850f537a58414eb5368a968ab1837fecb3c5dcbeee34b06
[INFO] running `Command { std: "docker" "start" "895bcd3bda9043cb5850f537a58414eb5368a968ab1837fecb3c5dcbeee34b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "895bcd3bda9043cb5850f537a58414eb5368a968ab1837fecb3c5dcbeee34b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "895bcd3bda9043cb5850f537a58414eb5368a968ab1837fecb3c5dcbeee34b06" "/opt/rustwide/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "895bcd3bda9043cb5850f537a58414eb5368a968ab1837fecb3c5dcbeee34b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "895bcd3bda9043cb5850f537a58414eb5368a968ab1837fecb3c5dcbeee34b06" "/opt/rustwide/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking task-tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Cli` is never constructed
[INFO] [stdout]  --> src/commands.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Cli {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Commands` is never used
[INFO] [stdout]  --> src/commands.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Commands {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_command` is never used
[INFO] [stdout]   --> src/commands.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn match_command(command: &str, file_name: PathBuf, content: String) -> Cli {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Task` is never constructed
[INFO] [stdout]  --> src/task.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Task {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `to_json`, `from_json`, and `update` are never used
[INFO] [stdout]   --> src/task.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Task {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new(id: u64, description: String) -> Task {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn to_json(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn from_json(json: &str) -> Option<Self> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn update(&mut self, key: Option<String>, value: Option<String>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_file_items` is never used
[INFO] [stdout]   --> src/task.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn get_file_items(file: &mut File) -> Result<Vec<String>, std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_task` is never used
[INFO] [stdout]    --> src/task.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub fn read_task(file: &mut File, task_id: u64) -> Result<Option<Task>, std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_task` is never used
[INFO] [stdout]    --> src/task.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub fn write_task(file: &mut File, task: Task) -> Result<(), std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `update_task` is never used
[INFO] [stdout]    --> src/task.rs:146:8
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub fn update_task(file: &mut File, task_id: u64, field: Option<String>, value: Option<String>) -> Result<(), std::io::Error> {    
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_task` is never used
[INFO] [stdout]    --> src/task.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub fn delete_task(file: &mut File, task_id: u64) -> Result<(), std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list_tasks` is never used
[INFO] [stdout]    --> src/task.rs:197:8
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub fn list_tasks(file: &mut File) -> Result<(), std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_lowest_available_id` is never used
[INFO] [stdout]    --> src/task.rs:209:8
[INFO] [stdout]     |
[INFO] [stdout] 209 | pub fn find_lowest_available_id(file: &mut File) -> Result<u64, std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cli` is never constructed
[INFO] [stdout]  --> src/commands.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Cli {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Commands` is never used
[INFO] [stdout]  --> src/commands.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Commands {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_command` is never used
[INFO] [stdout]   --> src/commands.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn match_command(command: &str, file_name: PathBuf, content: String) -> Cli {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Task` is never constructed
[INFO] [stdout]  --> src/task.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Task {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `to_json`, `from_json`, and `update` are never used
[INFO] [stdout]   --> src/task.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Task {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new(id: u64, description: String) -> Task {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn to_json(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn from_json(json: &str) -> Option<Self> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn update(&mut self, key: Option<String>, value: Option<String>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_file_items` is never used
[INFO] [stdout]   --> src/task.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn get_file_items(file: &mut File) -> Result<Vec<String>, std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_task` is never used
[INFO] [stdout]    --> src/task.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub fn read_task(file: &mut File, task_id: u64) -> Result<Option<Task>, std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_task` is never used
[INFO] [stdout]    --> src/task.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub fn write_task(file: &mut File, task: Task) -> Result<(), std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `update_task` is never used
[INFO] [stdout]    --> src/task.rs:146:8
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub fn update_task(file: &mut File, task_id: u64, field: Option<String>, value: Option<String>) -> Result<(), std::io::Error> {    
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_task` is never used
[INFO] [stdout]    --> src/task.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub fn delete_task(file: &mut File, task_id: u64) -> Result<(), std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list_tasks` is never used
[INFO] [stdout]    --> src/task.rs:197:8
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub fn list_tasks(file: &mut File) -> Result<(), std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_lowest_available_id` is never used
[INFO] [stdout]    --> src/task.rs:209:8
[INFO] [stdout]     |
[INFO] [stdout] 209 | pub fn find_lowest_available_id(file: &mut File) -> Result<u64, std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "895bcd3bda9043cb5850f537a58414eb5368a968ab1837fecb3c5dcbeee34b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "895bcd3bda9043cb5850f537a58414eb5368a968ab1837fecb3c5dcbeee34b06", kill_on_drop: false }`
[INFO] [stdout] 895bcd3bda9043cb5850f537a58414eb5368a968ab1837fecb3c5dcbeee34b06
