[INFO] updating cached repository abizzaar/rust-lockfree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/abizzaar/rust-lockfree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/abizzaar/rust-lockfree" "work/ex/beta-1.38-1/sources/1.37.0/gh/abizzaar/rust-lockfree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/abizzaar/rust-lockfree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/abizzaar/rust-lockfree" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abizzaar/rust-lockfree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abizzaar/rust-lockfree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5738d7028d31f8d5625cec46839a19966cb1983f
[INFO] sha for GitHub repo abizzaar/rust-lockfree: 5738d7028d31f8d5625cec46839a19966cb1983f
[INFO] validating manifest of abizzaar/rust-lockfree 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 abizzaar/rust-lockfree 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 abizzaar/rust-lockfree
[INFO] finished frobbing abizzaar/rust-lockfree
[INFO] frobbed toml for abizzaar/rust-lockfree written to work/ex/beta-1.38-1/sources/1.37.0/gh/abizzaar/rust-lockfree/Cargo.toml
[INFO] started frobbing abizzaar/rust-lockfree
[INFO] finished frobbing abizzaar/rust-lockfree
[INFO] frobbed toml for abizzaar/rust-lockfree written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abizzaar/rust-lockfree/Cargo.toml
[INFO] crate abizzaar/rust-lockfree 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing abizzaar/rust-lockfree against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/abizzaar/rust-lockfree:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5270ccf887bec08ab90b112a806d008c774cf55c6588c724a18e72f7d568e690
[INFO] running `"docker" "start" "-a" "5270ccf887bec08ab90b112a806d008c774cf55c6588c724a18e72f7d568e690"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling proc-macro-hack v0.5.7
[INFO] [stderr]    Compiling arr_macro_impl v0.1.2
[INFO] [stderr]    Compiling arr_macro v0.1.2
[INFO] [stderr]    Compiling final-abizar v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Entry`
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Entry {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HashTable`
[INFO] [stderr]   --> src/main.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct HashTable {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_item`
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn set_item(&mut self, key: i32, val: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_item`
[INFO] [stderr]   --> src/main.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn get_item(&self, key: i32) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.47s
[INFO] running `"docker" "inspect" "5270ccf887bec08ab90b112a806d008c774cf55c6588c724a18e72f7d568e690"`
[INFO] running `"docker" "rm" "-f" "5270ccf887bec08ab90b112a806d008c774cf55c6588c724a18e72f7d568e690"`
[INFO] [stdout] 5270ccf887bec08ab90b112a806d008c774cf55c6588c724a18e72f7d568e690
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/abizzaar/rust-lockfree:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7316221dc93b41be5ebb4f5e1d9bd0f3909b0d08e171060250f4f42558d808df
[INFO] running `"docker" "start" "-a" "7316221dc93b41be5ebb4f5e1d9bd0f3909b0d08e171060250f4f42558d808df"`
[INFO] [stderr]    Compiling final-abizar v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `random`
[INFO] [stderr]   --> src/main.rs:50:16
[INFO] [stderr]    |
[INFO] [stderr] 50 |     use rand::{random, Rng};
[INFO] [stderr]    |                ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `"docker" "inspect" "7316221dc93b41be5ebb4f5e1d9bd0f3909b0d08e171060250f4f42558d808df"`
[INFO] running `"docker" "rm" "-f" "7316221dc93b41be5ebb4f5e1d9bd0f3909b0d08e171060250f4f42558d808df"`
[INFO] [stdout] 7316221dc93b41be5ebb4f5e1d9bd0f3909b0d08e171060250f4f42558d808df
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/abizzaar/rust-lockfree:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] b6b89ddcd73277d736e813f20f2a38c6b53e0ec6701ecb7b18a8f2fb54bebd6f
[INFO] running `"docker" "start" "-a" "b6b89ddcd73277d736e813f20f2a38c6b53e0ec6701ecb7b18a8f2fb54bebd6f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/final_abizar-08f76c21c7d0d4b1
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::sequential ... ok
[INFO] [stdout] test tests::multithreaded_simple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b6b89ddcd73277d736e813f20f2a38c6b53e0ec6701ecb7b18a8f2fb54bebd6f"`
[INFO] running `"docker" "rm" "-f" "b6b89ddcd73277d736e813f20f2a38c6b53e0ec6701ecb7b18a8f2fb54bebd6f"`
[INFO] [stdout] b6b89ddcd73277d736e813f20f2a38c6b53e0ec6701ecb7b18a8f2fb54bebd6f