[INFO] cloning repository https://github.com/gevorgyana/scanf-like-rust-input
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gevorgyana/scanf-like-rust-input" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgevorgyana%2Fscanf-like-rust-input", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgevorgyana%2Fscanf-like-rust-input'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] afb18ae2d857ebb06d952d92eb853a1b5266d2ee
[INFO] checking gevorgyana/scanf-like-rust-input against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgevorgyana%2Fscanf-like-rust-input" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gevorgyana/scanf-like-rust-input
[INFO] finished tweaking git repo https://github.com/gevorgyana/scanf-like-rust-input
[INFO] tweaked toml for git repo https://github.com/gevorgyana/scanf-like-rust-input written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gevorgyana/scanf-like-rust-input on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gevorgyana/scanf-like-rust-input 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" "+63132bd615c9bf75e93af8405d00064212331708" "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 gevorgyana/scanf-like-rust-input against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgevorgyana%2Fscanf-like-rust-input" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gevorgyana/scanf-like-rust-input
[INFO] finished tweaking git repo https://github.com/gevorgyana/scanf-like-rust-input
[INFO] tweaked toml for git repo https://github.com/gevorgyana/scanf-like-rust-input written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gevorgyana/scanf-like-rust-input on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gevorgyana/scanf-like-rust-input 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" "+63132bd615c9bf75e93af8405d00064212331708" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdf578bb72ab31422359398a89c7fbea3f2ff073e47a9d1795066928bd2cc3c4
[INFO] running `Command { std: "docker" "start" "-a" "fdf578bb72ab31422359398a89c7fbea3f2ff073e47a9d1795066928bd2cc3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdf578bb72ab31422359398a89c7fbea3f2ff073e47a9d1795066928bd2cc3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdf578bb72ab31422359398a89c7fbea3f2ff073e47a9d1795066928bd2cc3c4", kill_on_drop: false }`
[INFO] [stdout] fdf578bb72ab31422359398a89c7fbea3f2ff073e47a9d1795066928bd2cc3c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c459a98533378c20be3089d0c5b5762040d7aac08e54188bce34e352925eebda
[INFO] running `Command { std: "docker" "start" "-a" "c459a98533378c20be3089d0c5b5762040d7aac08e54188bce34e352925eebda", kill_on_drop: false }`
[INFO] [stderr]     Checking cf-quick-scanf-like-input v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Read`, `Write`, and `self`
[INFO] [stdout]  --> src/lib.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `read_input_lines`
[INFO] [stdout]  --> src/lib.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | macro_rules! read_input_lines {
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `read_line_of_vars`
[INFO] [stdout]   --> src/lib.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | macro_rules! read_line_of_vars {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `Write`, and `self`
[INFO] [stdout]  --> src/lib.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `read_input_lines`
[INFO] [stdout]  --> src/lib.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | macro_rules! read_input_lines {
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `read_line_of_vars`
[INFO] [stdout]   --> src/lib.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | macro_rules! read_line_of_vars {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parsed`
[INFO] [stdout]   --> src/main.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Some((value, parsed)) => {
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     read_line_of_vars!(i32, lines, t);
[INFO] [stdout]    |     --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] help: `parsed` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/main.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Some((value, parsed)) => {
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     read_line_of_vars!(i32, lines, t);
[INFO] [stdout]    |     --------------------------------- in this macro invocation
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `read_line_of_vars` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parsed`
[INFO] [stdout]   --> src/main.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Some((value, parsed)) => {
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     read_line_of_vars!(i32, lines, t);
[INFO] [stdout]    |     --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] help: `parsed` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/main.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Some((value, parsed)) => {
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     read_line_of_vars!(i32, lines, t);
[INFO] [stdout]    |     --------------------------------- in this macro invocation
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `read_line_of_vars` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parsed`
[INFO] [stdout]   --> src/main.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Some((value, parsed)) => {
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     read_line_of_vars!(i32, lines, n, x);
[INFO] [stdout]    |     ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] help: `parsed` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/main.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Some((value, parsed)) => {
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     read_line_of_vars!(i32, lines, n, x);
[INFO] [stdout]    |     ------------------------------------ in this macro invocation
[INFO] [stdout]    = note: this warning originates in the macro `read_line_of_vars` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parsed`
[INFO] [stdout]   --> src/main.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Some((value, parsed)) => {
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     read_line_of_vars!(i32, lines, n, x);
[INFO] [stdout]    |     ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] help: `parsed` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/main.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Some((value, parsed)) => {
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     read_line_of_vars!(i32, lines, n, x);
[INFO] [stdout]    |     ------------------------------------ in this macro invocation
[INFO] [stdout]    = note: this warning originates in the macro `read_line_of_vars` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:50:30
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut lines: &[&str] = read_input_lines!(buf);
[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] 50 |     let mut lines: &[&str] = let _ = read_input_lines!(buf);
[INFO] [stdout]    |                              +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:50:30
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut lines: &[&str] = read_input_lines!(buf);
[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] 50 |     let mut lines: &[&str] = let _ = read_input_lines!(buf);
[INFO] [stdout]    |                              +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "c459a98533378c20be3089d0c5b5762040d7aac08e54188bce34e352925eebda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c459a98533378c20be3089d0c5b5762040d7aac08e54188bce34e352925eebda", kill_on_drop: false }`
[INFO] [stdout] c459a98533378c20be3089d0c5b5762040d7aac08e54188bce34e352925eebda
