[INFO] cloning repository https://github.com/KinakoExE/rust-programming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KinakoExE/rust-programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKinakoExE%2Frust-programming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKinakoExE%2Frust-programming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0290b9a60bdc2ebbf6d5316ae38bc05ebf53943d
[INFO] building KinakoExE/rust-programming against try#8aaecdf5df68a6fbc126704e44d399ba2fe66bf2 for pr-94962
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKinakoExE%2Frust-programming" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KinakoExE/rust-programming on toolchain 8aaecdf5df68a6fbc126704e44d399ba2fe66bf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KinakoExE/rust-programming
[INFO] finished tweaking git repo https://github.com/KinakoExE/rust-programming
[INFO] tweaked toml for git repo https://github.com/KinakoExE/rust-programming written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/KinakoExE/rust-programming already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e10f4cc4290d4ab6b6dd793c1df8fa0851d1ce37d2a6f2049715ee7ff2b8410
[INFO] running `Command { std: "docker" "start" "-a" "2e10f4cc4290d4ab6b6dd793c1df8fa0851d1ce37d2a6f2049715ee7ff2b8410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e10f4cc4290d4ab6b6dd793c1df8fa0851d1ce37d2a6f2049715ee7ff2b8410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e10f4cc4290d4ab6b6dd793c1df8fa0851d1ce37d2a6f2049715ee7ff2b8410", kill_on_drop: false }`
[INFO] [stdout] 2e10f4cc4290d4ab6b6dd793c1df8fa0851d1ce37d2a6f2049715ee7ff2b8410
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21e3b00a3e5f2b7a7ae57477cec73710f5a5d16751a693c0e0fb01748b3923ec
[INFO] running `Command { std: "docker" "start" "-a" "21e3b00a3e5f2b7a7ae57477cec73710f5a5d16751a693c0e0fb01748b3923ec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-basic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/shared-memory.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut data = Arc::new(Mutex::new(vec![1; 10]));
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/macro.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     write!(&mut w, "{}", "ABC");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (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/macro.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     writeln!(&mut w, " is 123");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.62s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "21e3b00a3e5f2b7a7ae57477cec73710f5a5d16751a693c0e0fb01748b3923ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21e3b00a3e5f2b7a7ae57477cec73710f5a5d16751a693c0e0fb01748b3923ec", kill_on_drop: false }`
[INFO] [stdout] 21e3b00a3e5f2b7a7ae57477cec73710f5a5d16751a693c0e0fb01748b3923ec