[INFO] cloning repository https://github.com/kevbrun/rust-todo-list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kevbrun/rust-todo-list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevbrun%2Frust-todo-list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevbrun%2Frust-todo-list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16c5acd927cc6bab964a5d5790a3180ff8df722e
[INFO] checking kevbrun/rust-todo-list against master#19f42cb9bb65555e7d95dab7d17573ae6c5d634c for pr-139087
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevbrun%2Frust-todo-list" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kevbrun/rust-todo-list on toolchain 19f42cb9bb65555e7d95dab7d17573ae6c5d634c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kevbrun/rust-todo-list
[INFO] finished tweaking git repo https://github.com/kevbrun/rust-todo-list
[INFO] tweaked toml for git repo https://github.com/kevbrun/rust-todo-list written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kevbrun/rust-todo-list 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" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f724c0380babacea69b6463233cd10a3fe2ba01713e2beab3f201146448a372
[INFO] running `Command { std: "docker" "start" "-a" "1f724c0380babacea69b6463233cd10a3fe2ba01713e2beab3f201146448a372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f724c0380babacea69b6463233cd10a3fe2ba01713e2beab3f201146448a372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f724c0380babacea69b6463233cd10a3fe2ba01713e2beab3f201146448a372", kill_on_drop: false }`
[INFO] [stdout] 1f724c0380babacea69b6463233cd10a3fe2ba01713e2beab3f201146448a372
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98b9187b3c8f7d3a297b75831595b6e883d3d0d346ca8e4c0aab42e211fce983
[INFO] running `Command { std: "docker" "start" "-a" "98b9187b3c8f7d3a297b75831595b6e883d3d0d346ca8e4c0aab42e211fce983", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking todo_lib v0.1.0 (/opt/rustwide/workdir/todo_lib)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> todo_lib/src/todo.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use std::fmt::Display;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `json`
[INFO] [stdout]  --> todo_lib/src/todo_list.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use json;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> todo_lib/src/todo.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use std::fmt::Display;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `json`
[INFO] [stdout]  --> todo_lib/src/todo_list.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use json;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking todo_app v0.1.0 (/opt/rustwide/workdir/todo_app)
[INFO] [stdout] warning: unused import: `todo_lib::todo::Todo`
[INFO] [stdout]  --> todo_app/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use todo_lib::todo::Todo;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> todo_app/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> todo_app/src/main.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{io::{self, Read}, process};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `todo_lib::todo::Todo`
[INFO] [stdout]  --> todo_app/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use todo_lib::todo::Todo;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> todo_app/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> todo_app/src/main.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{io::{self, Read}, process};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> todo_app/src/user_input.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Err(error) => Some(-1)
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_task` is never used
[INFO] [stdout]   --> todo_app/src/user_input.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn delete_task(todo_list: &mut TodoList) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> todo_app/src/user_input.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Err(error) => Some(-1)
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_task` is never used
[INFO] [stdout]   --> todo_app/src/user_input.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn delete_task(todo_list: &mut TodoList) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `Command { std: "docker" "inspect" "98b9187b3c8f7d3a297b75831595b6e883d3d0d346ca8e4c0aab42e211fce983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98b9187b3c8f7d3a297b75831595b6e883d3d0d346ca8e4c0aab42e211fce983", kill_on_drop: false }`
[INFO] [stdout] 98b9187b3c8f7d3a297b75831595b6e883d3d0d346ca8e4c0aab42e211fce983