[INFO] updating cached repository kanishkd4/Rust-algorithms
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kanishkd4/Rust-algorithms
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kanishkd4/Rust-algorithms" "work/ex/beta-1.38-1/sources/1.37.0/gh/kanishkd4/Rust-algorithms"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kanishkd4/Rust-algorithms'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kanishkd4/Rust-algorithms" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kanishkd4/Rust-algorithms"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kanishkd4/Rust-algorithms'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 65a739f98d914c8155425b9a96640b47a2db21f1
[INFO] sha for GitHub repo kanishkd4/Rust-algorithms: 65a739f98d914c8155425b9a96640b47a2db21f1
[INFO] validating manifest of kanishkd4/Rust-algorithms on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kanishkd4/Rust-algorithms on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kanishkd4/Rust-algorithms
[INFO] finished frobbing kanishkd4/Rust-algorithms
[INFO] frobbed toml for kanishkd4/Rust-algorithms written to work/ex/beta-1.38-1/sources/1.37.0/gh/kanishkd4/Rust-algorithms/Cargo.toml
[INFO] started frobbing kanishkd4/Rust-algorithms
[INFO] finished frobbing kanishkd4/Rust-algorithms
[INFO] frobbed toml for kanishkd4/Rust-algorithms written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kanishkd4/Rust-algorithms/Cargo.toml
[INFO] crate kanishkd4/Rust-algorithms already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing kanishkd4/Rust-algorithms against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kanishkd4/Rust-algorithms:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e4e4e08f1d78dadd65c0ef5103d2aa4f3408eccd7aa85aafb7ddfc06ab580150
[INFO] running `"docker" "start" "-a" "e4e4e08f1d78dadd65c0ef5103d2aa4f3408eccd7aa85aafb7ddfc06ab580150"`
[INFO] [stderr]    Compiling rust_algorithms v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::vec::Vec`
[INFO] [stderr]  --> src/bin/test.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `"docker" "inspect" "e4e4e08f1d78dadd65c0ef5103d2aa4f3408eccd7aa85aafb7ddfc06ab580150"`
[INFO] running `"docker" "rm" "-f" "e4e4e08f1d78dadd65c0ef5103d2aa4f3408eccd7aa85aafb7ddfc06ab580150"`
[INFO] [stdout] e4e4e08f1d78dadd65c0ef5103d2aa4f3408eccd7aa85aafb7ddfc06ab580150
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kanishkd4/Rust-algorithms:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 34a4150662122b4bb9c88abb79db258de16d8980e6381a9b0153708c07e42b58
[INFO] running `"docker" "start" "-a" "34a4150662122b4bb9c88abb79db258de16d8980e6381a9b0153708c07e42b58"`
[INFO] [stderr]    Compiling rust_algorithms v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::vec::Vec`
[INFO] [stderr]  --> src/bin/test.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "34a4150662122b4bb9c88abb79db258de16d8980e6381a9b0153708c07e42b58"`
[INFO] running `"docker" "rm" "-f" "34a4150662122b4bb9c88abb79db258de16d8980e6381a9b0153708c07e42b58"`
[INFO] [stdout] 34a4150662122b4bb9c88abb79db258de16d8980e6381a9b0153708c07e42b58
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kanishkd4/Rust-algorithms:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] c1131d25f0ae8598d0cb3276efd2e6753e5feae7c4fb1e77c0c3bdd8c4808b98
[INFO] running `"docker" "start" "-a" "c1131d25f0ae8598d0cb3276efd2e6753e5feae7c4fb1e77c0c3bdd8c4808b98"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/algorithms-f8a6e9138bc693bb
[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] [stderr]      Running /opt/crater/target/debug/deps/prime-714aa3c683119171
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test-3afe22386db410f8
[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] [stdout] 
[INFO] [stderr]    Doc-tests algorithms
[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] [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" "c1131d25f0ae8598d0cb3276efd2e6753e5feae7c4fb1e77c0c3bdd8c4808b98"`
[INFO] running `"docker" "rm" "-f" "c1131d25f0ae8598d0cb3276efd2e6753e5feae7c4fb1e77c0c3bdd8c4808b98"`
[INFO] [stdout] c1131d25f0ae8598d0cb3276efd2e6753e5feae7c4fb1e77c0c3bdd8c4808b98