[INFO] cloning repository aarthiKarthik/Rust-Basics
[INFO] running `"git" "clone" "--bare" "git://github.com/aarthiKarthik/Rust-Basics.git" "work/cache/sources/gh/aarthiKarthik/Rust-Basics"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/aarthiKarthik/Rust-Basics'...
[INFO] running `"git" "clone" "work/cache/sources/gh/aarthiKarthik/Rust-Basics" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/aarthiKarthik/Rust-Basics"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/aarthiKarthik/Rust-Basics'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aarthiKarthik/Rust-Basics" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/aarthiKarthik/Rust-Basics"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/aarthiKarthik/Rust-Basics'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 60ffe8aa9d5a7b66673d2b289c477219861c63c0
[INFO] sha for GitHub repo aarthiKarthik/Rust-Basics: 60ffe8aa9d5a7b66673d2b289c477219861c63c0
[INFO] validating manifest of aarthiKarthik/Rust-Basics on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aarthiKarthik/Rust-Basics on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing aarthiKarthik/Rust-Basics
[INFO] finished frobbing aarthiKarthik/Rust-Basics
[INFO] frobbed toml for aarthiKarthik/Rust-Basics written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/aarthiKarthik/Rust-Basics/Cargo.toml
[INFO] started frobbing aarthiKarthik/Rust-Basics
[INFO] finished frobbing aarthiKarthik/Rust-Basics
[INFO] frobbed toml for aarthiKarthik/Rust-Basics written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/aarthiKarthik/Rust-Basics/Cargo.toml
[INFO] crate aarthiKarthik/Rust-Basics already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing aarthiKarthik/Rust-Basics against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/aarthiKarthik/Rust-Basics:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] bf51a40f15a17bf211c3426da974596039d9d7bf1d8babdad3f6749bb37657a9
[INFO] running `"docker" "start" "-a" "bf51a40f15a17bf211c3426da974596039d9d7bf1d8babdad3f6749bb37657a9"`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `unused_variable`
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![allow(unused_variable)]
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^ help: did you mean: `unused_variables`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:88:6
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let a = 123;
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "bf51a40f15a17bf211c3426da974596039d9d7bf1d8babdad3f6749bb37657a9"`
[INFO] running `"docker" "rm" "-f" "bf51a40f15a17bf211c3426da974596039d9d7bf1d8babdad3f6749bb37657a9"`
[INFO] [stdout] bf51a40f15a17bf211c3426da974596039d9d7bf1d8babdad3f6749bb37657a9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/aarthiKarthik/Rust-Basics:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1cf5a22be707d6d11e465a16cee5b5b2825159891bbef840da22b8bfc5a95276
[INFO] running `"docker" "start" "-a" "1cf5a22be707d6d11e465a16cee5b5b2825159891bbef840da22b8bfc5a95276"`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `unused_variable`
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![allow(unused_variable)]
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^ help: did you mean: `unused_variables`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:88:6
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let a = 123;
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "1cf5a22be707d6d11e465a16cee5b5b2825159891bbef840da22b8bfc5a95276"`
[INFO] running `"docker" "rm" "-f" "1cf5a22be707d6d11e465a16cee5b5b2825159891bbef840da22b8bfc5a95276"`
[INFO] [stdout] 1cf5a22be707d6d11e465a16cee5b5b2825159891bbef840da22b8bfc5a95276
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/aarthiKarthik/Rust-Basics:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] 3d3d5ff52d99a2feac717435ec8ae37af9c69f03952d8988069c1b7acad15972
[INFO] running `"docker" "start" "-a" "3d3d5ff52d99a2feac717435ec8ae37af9c69f03952d8988069c1b7acad15972"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_world-3f4de4d634de350e
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3d3d5ff52d99a2feac717435ec8ae37af9c69f03952d8988069c1b7acad15972"`
[INFO] running `"docker" "rm" "-f" "3d3d5ff52d99a2feac717435ec8ae37af9c69f03952d8988069c1b7acad15972"`
[INFO] [stdout] 3d3d5ff52d99a2feac717435ec8ae37af9c69f03952d8988069c1b7acad15972