[INFO] cloning repository https://github.com/qaz2tec/Learning_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qaz2tec/Learning_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaz2tec%2FLearning_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaz2tec%2FLearning_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 70f2d6f21a6f140fa1662b21bca0377c328b8bee
[INFO] checking qaz2tec/Learning_Rust against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaz2tec%2FLearning_Rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qaz2tec/Learning_Rust on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qaz2tec/Learning_Rust
[INFO] finished tweaking git repo https://github.com/qaz2tec/Learning_Rust
[INFO] tweaked toml for git repo https://github.com/qaz2tec/Learning_Rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/qaz2tec/Learning_Rust 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking qaz2tec/Learning_Rust against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaz2tec%2FLearning_Rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qaz2tec/Learning_Rust on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qaz2tec/Learning_Rust
[INFO] finished tweaking git repo https://github.com/qaz2tec/Learning_Rust
[INFO] tweaked toml for git repo https://github.com/qaz2tec/Learning_Rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/qaz2tec/Learning_Rust 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "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 qaz2tec/Learning_Rust against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaz2tec%2FLearning_Rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qaz2tec/Learning_Rust on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qaz2tec/Learning_Rust
[INFO] finished tweaking git repo https://github.com/qaz2tec/Learning_Rust
[INFO] tweaked toml for git repo https://github.com/qaz2tec/Learning_Rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/qaz2tec/Learning_Rust 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4380dca60aaee3b35f627477a9cd4366fc626d7b9818caeb5790c09dbf12a402
[INFO] running `Command { std: "docker" "start" "-a" "4380dca60aaee3b35f627477a9cd4366fc626d7b9818caeb5790c09dbf12a402", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4380dca60aaee3b35f627477a9cd4366fc626d7b9818caeb5790c09dbf12a402", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4380dca60aaee3b35f627477a9cd4366fc626d7b9818caeb5790c09dbf12a402", kill_on_drop: false }`
[INFO] [stdout] 4380dca60aaee3b35f627477a9cd4366fc626d7b9818caeb5790c09dbf12a402
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd2312554707d5a321adf06066515ca72cc9823a9bbf7855c5fc29fc02ba5d10
[INFO] running `Command { std: "docker" "start" "-a" "bd2312554707d5a321adf06066515ca72cc9823a9bbf7855c5fc29fc02ba5d10", kill_on_drop: false }`
[INFO] [stderr]     Checking Ruust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `NotOk` is never constructed
[INFO] [stdout]  --> src/bin/main2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Status {
[INFO] [stdout]   |      ------ variant in this enum
[INFO] [stdout] 2 |     Okay,
[INFO] [stdout] 3 |     NotOk,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `status` are never read
[INFO] [stdout]  --> src/bin/main2.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Condition {
[INFO] [stdout]   |        --------- fields in this struct
[INFO] [stdout] 8 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     status: Status,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NotOk` is never constructed
[INFO] [stdout]  --> src/bin/main2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Status {
[INFO] [stdout]   |      ------ variant in this enum
[INFO] [stdout] 2 |     Okay,
[INFO] [stdout] 3 |     NotOk,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `status` are never read
[INFO] [stdout]  --> src/bin/main2.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Condition {
[INFO] [stdout]   |        --------- fields in this struct
[INFO] [stdout] 8 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     status: Status,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "bd2312554707d5a321adf06066515ca72cc9823a9bbf7855c5fc29fc02ba5d10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd2312554707d5a321adf06066515ca72cc9823a9bbf7855c5fc29fc02ba5d10", kill_on_drop: false }`
[INFO] [stdout] bd2312554707d5a321adf06066515ca72cc9823a9bbf7855c5fc29fc02ba5d10