[INFO] cloning repository https://github.com/ch1s7ya/otus_rust_basic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ch1s7ya/otus_rust_basic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fch1s7ya%2Fotus_rust_basic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fch1s7ya%2Fotus_rust_basic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c16a882ba50b45d0b59aa580ee50e52adbccec4
[INFO] checking ch1s7ya/otus_rust_basic against try#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fch1s7ya%2Fotus_rust_basic" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ch1s7ya/otus_rust_basic
[INFO] finished tweaking git repo https://github.com/ch1s7ya/otus_rust_basic
[INFO] tweaked toml for git repo https://github.com/ch1s7ya/otus_rust_basic written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ch1s7ya/otus_rust_basic on toolchain dd2d87b6cc31907ae305875eb6be399783dc0256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ch1s7ya/otus_rust_basic 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" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "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 ch1s7ya/otus_rust_basic against try#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fch1s7ya%2Fotus_rust_basic" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ch1s7ya/otus_rust_basic
[INFO] finished tweaking git repo https://github.com/ch1s7ya/otus_rust_basic
[INFO] tweaked toml for git repo https://github.com/ch1s7ya/otus_rust_basic written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ch1s7ya/otus_rust_basic on toolchain dd2d87b6cc31907ae305875eb6be399783dc0256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ch1s7ya/otus_rust_basic 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" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38c5edf7689ed761df53850a08080aeb8afdcc3f5e59bffb3856450528c59b18
[INFO] running `Command { std: "docker" "start" "-a" "38c5edf7689ed761df53850a08080aeb8afdcc3f5e59bffb3856450528c59b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38c5edf7689ed761df53850a08080aeb8afdcc3f5e59bffb3856450528c59b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38c5edf7689ed761df53850a08080aeb8afdcc3f5e59bffb3856450528c59b18", kill_on_drop: false }`
[INFO] [stdout] 38c5edf7689ed761df53850a08080aeb8afdcc3f5e59bffb3856450528c59b18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e16519ea88fd4fb5322c5e4854ecaa5d590d706f838325f8b996ee86642c0c14
[INFO] running `Command { std: "docker" "start" "-a" "e16519ea88fd4fb5322c5e4854ecaa5d590d706f838325f8b996ee86642c0c14", kill_on_drop: false }`
[INFO] [stderr]     Checking hw02 v0.1.0 (/opt/rustwide/workdir/hw02)
[INFO] [stderr]     Checking hw05 v0.1.0 (/opt/rustwide/workdir/hw05)
[INFO] [stderr]     Checking hw01 v0.1.0 (/opt/rustwide/workdir/hw01)
[INFO] [stderr]     Checking hw04 v0.1.0 (/opt/rustwide/workdir/hw04)
[INFO] [stderr]     Checking hw03 v0.1.0 (/opt/rustwide/workdir/hw03)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> hw05/src/main.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let b = write(&mut rb, &[b'a', b'b']);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> hw05/src/main.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let b = write(&mut rb, &[b'a', b'b', b'c']);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "e16519ea88fd4fb5322c5e4854ecaa5d590d706f838325f8b996ee86642c0c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e16519ea88fd4fb5322c5e4854ecaa5d590d706f838325f8b996ee86642c0c14", kill_on_drop: false }`
[INFO] [stdout] e16519ea88fd4fb5322c5e4854ecaa5d590d706f838325f8b996ee86642c0c14