[INFO] cloning repository https://github.com/negrel/guessing_game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/negrel/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnegrel%2Fguessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnegrel%2Fguessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c9910d0367641b0817b6dcb31bf2dbc46382623
[INFO] checking negrel/guessing_game against try#1baf923b9c3a455162afe43e18647f494c1a4b73 for pr-151510
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnegrel%2Fguessing_game" "/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/negrel/guessing_game
[INFO] finished tweaking git repo https://github.com/negrel/guessing_game
[INFO] tweaked toml for git repo https://github.com/negrel/guessing_game written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/negrel/guessing_game on toolchain 1baf923b9c3a455162afe43e18647f494c1a4b73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/negrel/guessing_game 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" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "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 negrel/guessing_game against try#1baf923b9c3a455162afe43e18647f494c1a4b73 for pr-151510
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnegrel%2Fguessing_game" "/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/negrel/guessing_game
[INFO] finished tweaking git repo https://github.com/negrel/guessing_game
[INFO] tweaked toml for git repo https://github.com/negrel/guessing_game written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/negrel/guessing_game on toolchain 1baf923b9c3a455162afe43e18647f494c1a4b73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/negrel/guessing_game 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" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f503d32fd1ace54b8a7d5081c149043d13c5dd41a1ff9b65c7335ae1c07a9f5
[INFO] running `Command { std: "docker" "start" "-a" "5f503d32fd1ace54b8a7d5081c149043d13c5dd41a1ff9b65c7335ae1c07a9f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f503d32fd1ace54b8a7d5081c149043d13c5dd41a1ff9b65c7335ae1c07a9f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f503d32fd1ace54b8a7d5081c149043d13c5dd41a1ff9b65c7335ae1c07a9f5", kill_on_drop: false }`
[INFO] [stdout] 5f503d32fd1ace54b8a7d5081c149043d13c5dd41a1ff9b65c7335ae1c07a9f5
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 787cb47013d805084a2a806779219011e68b0b2f201d78153e364851f2e6166c
[INFO] running `Command { std: "docker" "start" "-a" "787cb47013d805084a2a806779219011e68b0b2f201d78153e364851f2e6166c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/main.rs:41:2
[INFO] [stdout]    |
[INFO] [stdout] 41 |     drop(min);
[INFO] [stdout]    |     ^^^^^---^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 41 -     drop(min);
[INFO] [stdout] 41 +     let _ = min;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/main.rs:41:2
[INFO] [stdout]    |
[INFO] [stdout] 41 |     drop(min);
[INFO] [stdout]    |     ^^^^^---^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 41 -     drop(min);
[INFO] [stdout] 41 +     let _ = min;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/main.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 42 |     drop(max);
[INFO] [stdout]    |     ^^^^^---^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 42 -     drop(max);
[INFO] [stdout] 42 +     let _ = max;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/main.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 42 |     drop(max);
[INFO] [stdout]    |     ^^^^^---^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 42 -     drop(max);
[INFO] [stdout] 42 +     let _ = max;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:97:20
[INFO] [stdout]    |
[INFO] [stdout] 97 |         Err(e) => panic!(e),
[INFO] [stdout]    |                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 97 |         Err(e) => panic!("{}", e),
[INFO] [stdout]    |                          +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 97 -         Err(e) => panic!(e),
[INFO] [stdout] 97 +         Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:97:20
[INFO] [stdout]    |
[INFO] [stdout] 97 |         Err(e) => panic!(e),
[INFO] [stdout]    |                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 97 |         Err(e) => panic!("{}", e),
[INFO] [stdout]    |                          +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 97 -         Err(e) => panic!(e),
[INFO] [stdout] 97 +         Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "787cb47013d805084a2a806779219011e68b0b2f201d78153e364851f2e6166c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "787cb47013d805084a2a806779219011e68b0b2f201d78153e364851f2e6166c", kill_on_drop: false }`
[INFO] [stdout] 787cb47013d805084a2a806779219011e68b0b2f201d78153e364851f2e6166c
