[INFO] cloning repository https://github.com/hprasadsakhare/Rust_Basics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hprasadsakhare/Rust_Basics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhprasadsakhare%2FRust_Basics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhprasadsakhare%2FRust_Basics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d185611d566c519364e8b2dd12db2743740de3d
[INFO] checking hprasadsakhare/Rust_Basics against try#099af82bc034c1e4895c90e5407fafdd61976cdb for pr-145457
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhprasadsakhare%2FRust_Basics" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hprasadsakhare/Rust_Basics
[INFO] finished tweaking git repo https://github.com/hprasadsakhare/Rust_Basics
[INFO] tweaked toml for git repo https://github.com/hprasadsakhare/Rust_Basics written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hprasadsakhare/Rust_Basics on toolchain 099af82bc034c1e4895c90e5407fafdd61976cdb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hprasadsakhare/Rust_Basics 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" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "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 hprasadsakhare/Rust_Basics against try#099af82bc034c1e4895c90e5407fafdd61976cdb for pr-145457
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhprasadsakhare%2FRust_Basics" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hprasadsakhare/Rust_Basics
[INFO] finished tweaking git repo https://github.com/hprasadsakhare/Rust_Basics
[INFO] tweaked toml for git repo https://github.com/hprasadsakhare/Rust_Basics written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hprasadsakhare/Rust_Basics on toolchain 099af82bc034c1e4895c90e5407fafdd61976cdb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hprasadsakhare/Rust_Basics 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" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce939e3a4d2037b02f9b87ea3cd4563b3c136a47cc73086b1b7350dd5b159408
[INFO] running `Command { std: "docker" "start" "-a" "ce939e3a4d2037b02f9b87ea3cd4563b3c136a47cc73086b1b7350dd5b159408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce939e3a4d2037b02f9b87ea3cd4563b3c136a47cc73086b1b7350dd5b159408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce939e3a4d2037b02f9b87ea3cd4563b3c136a47cc73086b1b7350dd5b159408", kill_on_drop: false }`
[INFO] [stdout] ce939e3a4d2037b02f9b87ea3cd4563b3c136a47cc73086b1b7350dd5b159408
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 604d07de56b2c68f9d7bf33b04d281c552ffee5adf50392b822346324d4172c3
[INFO] running `Command { std: "docker" "start" "-a" "604d07de56b2c68f9d7bf33b04d281c552ffee5adf50392b822346324d4172c3", kill_on_drop: false }`
[INFO] [stderr]     Checking Rust_basic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Red` and `Yellow` are never constructed
[INFO] [stdout]  --> src/bin/enum2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Color{
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 2 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 3 |     Yellow,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Red` and `Yellow` are never constructed
[INFO] [stdout]  --> src/bin/enum2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Color{
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 2 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 3 |     Yellow,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Admin`, `Manager`, and `User` are never constructed
[INFO] [stdout]  --> src/bin/expression1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Access {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 2 |     Admin,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 3 |     Manager,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     User,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Left` and `Right` are never constructed
[INFO] [stdout]  --> src/bin/enum1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Direction {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 2 |     Left,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 3 |     Right,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> src/bin/tuples1.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let (x,y) = coordinates();
[INFO] [stdout]   |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Brown` is never constructed
[INFO] [stdout]  --> src/bin/impl4.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Color {
[INFO] [stdout]   |      ----- variant in this enum
[INFO] [stdout] 2 |     Brown,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Brown` is never constructed
[INFO] [stdout]  --> src/bin/impl4.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Color {
[INFO] [stdout]   |      ----- variant in this enum
[INFO] [stdout] 2 |     Brown,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Left` and `Right` are never constructed
[INFO] [stdout]  --> src/bin/enum1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Direction {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 2 |     Left,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 3 |     Right,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Person` should have a snake case name
[INFO] [stdout]   --> src/bin/string3.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     for Person in people{
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `person`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> src/bin/tuples1.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let (x,y) = coordinates();
[INFO] [stdout]   |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Person` should have a snake case name
[INFO] [stdout]   --> src/bin/string3.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     for Person in people{
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `person`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Admin`, `Manager`, and `User` are never constructed
[INFO] [stdout]  --> src/bin/expression1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Access {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 2 |     Admin,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 3 |     Manager,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     User,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "604d07de56b2c68f9d7bf33b04d281c552ffee5adf50392b822346324d4172c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "604d07de56b2c68f9d7bf33b04d281c552ffee5adf50392b822346324d4172c3", kill_on_drop: false }`
[INFO] [stdout] 604d07de56b2c68f9d7bf33b04d281c552ffee5adf50392b822346324d4172c3