[INFO] cloning repository https://github.com/sa-es-ir/rust-todo-app-cli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sa-es-ir/rust-todo-app-cli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsa-es-ir%2Frust-todo-app-cli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsa-es-ir%2Frust-todo-app-cli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bcdf98f656ca280a06f39c940c1e58aafb056db0
[INFO] checking sa-es-ir/rust-todo-app-cli against try#81ab7f2139295590561adbe6d5b0aaa2feff765f for pr-146470-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsa-es-ir%2Frust-todo-app-cli" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sa-es-ir/rust-todo-app-cli
[INFO] finished tweaking git repo https://github.com/sa-es-ir/rust-todo-app-cli
[INFO] tweaked toml for git repo https://github.com/sa-es-ir/rust-todo-app-cli written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sa-es-ir/rust-todo-app-cli on toolchain 81ab7f2139295590561adbe6d5b0aaa2feff765f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sa-es-ir/rust-todo-app-cli 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" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking sa-es-ir/rust-todo-app-cli against try#81ab7f2139295590561adbe6d5b0aaa2feff765f for pr-146470-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsa-es-ir%2Frust-todo-app-cli" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sa-es-ir/rust-todo-app-cli
[INFO] finished tweaking git repo https://github.com/sa-es-ir/rust-todo-app-cli
[INFO] tweaked toml for git repo https://github.com/sa-es-ir/rust-todo-app-cli written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sa-es-ir/rust-todo-app-cli on toolchain 81ab7f2139295590561adbe6d5b0aaa2feff765f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sa-es-ir/rust-todo-app-cli 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" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01fdef36d5e316ca2e500f4063a57cf6f037a126d60c83bcf6c9e043722d4f17
[INFO] running `Command { std: "docker" "start" "-a" "01fdef36d5e316ca2e500f4063a57cf6f037a126d60c83bcf6c9e043722d4f17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01fdef36d5e316ca2e500f4063a57cf6f037a126d60c83bcf6c9e043722d4f17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01fdef36d5e316ca2e500f4063a57cf6f037a126d60c83bcf6c9e043722d4f17", kill_on_drop: false }`
[INFO] [stdout] 01fdef36d5e316ca2e500f4063a57cf6f037a126d60c83bcf6c9e043722d4f17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e2cf4a38a31fa4825d4904169580c2bab3159f23c64d8266238414adade60cb
[INFO] running `Command { std: "docker" "start" "-a" "1e2cf4a38a31fa4825d4904169580c2bab3159f23c64d8266238414adade60cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking rust-todo-app-cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `new`, `new_loop`, and `save` are never used
[INFO] [stdout]    --> src/main.rs:46:8
[INFO] [stdout]     |
[INFO] [stdout]  38 | impl Todo {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  46 |     fn new() -> Result<Todo, std::io::Error> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn new_loop() -> Result<Todo, std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     fn save(self) -> Result<(), std::io::Error> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `new_loop`, and `save` are never used
[INFO] [stdout]    --> src/main.rs:46:8
[INFO] [stdout]     |
[INFO] [stdout]  38 | impl Todo {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  46 |     fn new() -> Result<Todo, std::io::Error> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn new_loop() -> Result<Todo, std::io::Error> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     fn save(self) -> Result<(), std::io::Error> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         file_options.read_to_string(&mut content);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let _ = file_options.read_to_string(&mut content);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         file_options.read_to_string(&mut content);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let _ = file_options.read_to_string(&mut content);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "1e2cf4a38a31fa4825d4904169580c2bab3159f23c64d8266238414adade60cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e2cf4a38a31fa4825d4904169580c2bab3159f23c64d8266238414adade60cb", kill_on_drop: false }`
[INFO] [stdout] 1e2cf4a38a31fa4825d4904169580c2bab3159f23c64d8266238414adade60cb