[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 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-6/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/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e42845cb006a214904a1fb0122f7dec46bd7cddda7ff4df016e64bc993a1b54a
[INFO] running `"docker" "start" "-a" "e42845cb006a214904a1fb0122f7dec46bd7cddda7ff4df016e64bc993a1b54a"`
[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 22.54s
[INFO] running `"docker" "inspect" "e42845cb006a214904a1fb0122f7dec46bd7cddda7ff4df016e64bc993a1b54a"`
[INFO] running `"docker" "rm" "-f" "e42845cb006a214904a1fb0122f7dec46bd7cddda7ff4df016e64bc993a1b54a"`
[INFO] [stdout] e42845cb006a214904a1fb0122f7dec46bd7cddda7ff4df016e64bc993a1b54a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] f3386adc6cac9fa0aa6305a0b0c37bb9b0f4960c6b78f6d4c5e9478f97506a8e
[INFO] running `"docker" "start" "-a" "f3386adc6cac9fa0aa6305a0b0c37bb9b0f4960c6b78f6d4c5e9478f97506a8e"`
[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 2.04s
[INFO] running `"docker" "inspect" "f3386adc6cac9fa0aa6305a0b0c37bb9b0f4960c6b78f6d4c5e9478f97506a8e"`
[INFO] running `"docker" "rm" "-f" "f3386adc6cac9fa0aa6305a0b0c37bb9b0f4960c6b78f6d4c5e9478f97506a8e"`
[INFO] [stdout] f3386adc6cac9fa0aa6305a0b0c37bb9b0f4960c6b78f6d4c5e9478f97506a8e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 307bf3567719b58056bdcb7bc193ad30f618f70459d2f28649d3996eb5c4e636
[INFO] running `"docker" "start" "-a" "307bf3567719b58056bdcb7bc193ad30f618f70459d2f28649d3996eb5c4e636"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/final_abizar-1478470cfbc255b1
[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" "307bf3567719b58056bdcb7bc193ad30f618f70459d2f28649d3996eb5c4e636"`
[INFO] running `"docker" "rm" "-f" "307bf3567719b58056bdcb7bc193ad30f618f70459d2f28649d3996eb5c4e636"`
[INFO] [stdout] 307bf3567719b58056bdcb7bc193ad30f618f70459d2f28649d3996eb5c4e636