[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] testing kevbrun/rust-todo-list against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevbrun%2Frust-todo-list" "/workspace/builds/worker-103/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-103/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kevbrun/rust-todo-list on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-103/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: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35f8ca9703c1769e95aa2a92f31b6262b9992cd81191fd4d6d448bf4d549c451
[INFO] running `Command { std: "docker" "start" "-a" "35f8ca9703c1769e95aa2a92f31b6262b9992cd81191fd4d6d448bf4d549c451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35f8ca9703c1769e95aa2a92f31b6262b9992cd81191fd4d6d448bf4d549c451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35f8ca9703c1769e95aa2a92f31b6262b9992cd81191fd4d6d448bf4d549c451", kill_on_drop: false }`
[INFO] [stdout] 35f8ca9703c1769e95aa2a92f31b6262b9992cd81191fd4d6d448bf4d549c451
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f521b1c54af3701ef2d88aff4e8a30c8e74b3bb8c605cba1678aad44245ceca3
[INFO] running `Command { std: "docker" "start" "-a" "f521b1c54af3701ef2d88aff4e8a30c8e74b3bb8c605cba1678aad44245ceca3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling 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 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 is never used: `delete_task`
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.93s
[INFO] running `Command { std: "docker" "inspect" "f521b1c54af3701ef2d88aff4e8a30c8e74b3bb8c605cba1678aad44245ceca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f521b1c54af3701ef2d88aff4e8a30c8e74b3bb8c605cba1678aad44245ceca3", kill_on_drop: false }`
[INFO] [stdout] f521b1c54af3701ef2d88aff4e8a30c8e74b3bb8c605cba1678aad44245ceca3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c9f9321993b9b4c9b9856446c33d01409888c3586a9b822492963a467c0d4b7
[INFO] running `Command { std: "docker" "start" "-a" "3c9f9321993b9b4c9b9856446c33d01409888c3586a9b822492963a467c0d4b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]    Compiling todo_lib v0.1.0 (/opt/rustwide/workdir/todo_lib)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling 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: `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 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 is never used: `delete_task`
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.87s
[INFO] running `Command { std: "docker" "inspect" "3c9f9321993b9b4c9b9856446c33d01409888c3586a9b822492963a467c0d4b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c9f9321993b9b4c9b9856446c33d01409888c3586a9b822492963a467c0d4b7", kill_on_drop: false }`
[INFO] [stdout] 3c9f9321993b9b4c9b9856446c33d01409888c3586a9b822492963a467c0d4b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8661818ce26a5e5114dd3b7ec18a0db83de3fe0407a599375ae6ea64d5e9b7aa
[INFO] running `Command { std: "docker" "start" "-a" "8661818ce26a5e5114dd3b7ec18a0db83de3fe0407a599375ae6ea64d5e9b7aa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> todo_lib/src/todo.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     use std::fmt::Display;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `json`
[INFO] [stderr]  --> todo_lib/src/todo_list.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use json;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `todo_lib` (lib) generated 2 warnings
[INFO] [stderr] warning: `todo_lib` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: unused import: `todo_lib::todo::Todo`
[INFO] [stderr]  --> todo_app/src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use todo_lib::todo::Todo;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> todo_app/src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> todo_app/src/main.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::{io::{self, Read}, process};
[INFO] [stderr]   |                      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `error`
[INFO] [stderr]   --> todo_app/src/user_input.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         Err(error) => Some(-1)
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `delete_task`
[INFO] [stderr]   --> todo_app/src/user_input.rs:36:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn delete_task(todo_list: &mut TodoList) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `todo_app` (bin "todo_app" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.61s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/todo_app-537a696f69ef5618)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/todo_lib-d6a9718816f27f34)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests todo_lib
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8661818ce26a5e5114dd3b7ec18a0db83de3fe0407a599375ae6ea64d5e9b7aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8661818ce26a5e5114dd3b7ec18a0db83de3fe0407a599375ae6ea64d5e9b7aa", kill_on_drop: false }`
[INFO] [stdout] 8661818ce26a5e5114dd3b7ec18a0db83de3fe0407a599375ae6ea64d5e9b7aa