[INFO] updating cached repository MorganRodgers/rusty_core
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MorganRodgers/rusty_core
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MorganRodgers/rusty_core" "work/ex/beta-1.38-1/sources/1.37.0/gh/MorganRodgers/rusty_core"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/MorganRodgers/rusty_core'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MorganRodgers/rusty_core" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MorganRodgers/rusty_core"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MorganRodgers/rusty_core'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dc4aa470d6685fa269307d041a2db7e8627e89b3
[INFO] sha for GitHub repo MorganRodgers/rusty_core: dc4aa470d6685fa269307d041a2db7e8627e89b3
[INFO] validating manifest of MorganRodgers/rusty_core 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 MorganRodgers/rusty_core 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 MorganRodgers/rusty_core
[INFO] finished frobbing MorganRodgers/rusty_core
[INFO] frobbed toml for MorganRodgers/rusty_core written to work/ex/beta-1.38-1/sources/1.37.0/gh/MorganRodgers/rusty_core/Cargo.toml
[INFO] started frobbing MorganRodgers/rusty_core
[INFO] finished frobbing MorganRodgers/rusty_core
[INFO] frobbed toml for MorganRodgers/rusty_core written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MorganRodgers/rusty_core/Cargo.toml
[INFO] crate MorganRodgers/rusty_core 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 MorganRodgers/rusty_core 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/MorganRodgers/rusty_core:/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] 04b0a20ca062ca4345e9d69035a3fdfa5f6ebfc49c36b0116fd0ba2323af75bf
[INFO] running `"docker" "start" "-a" "04b0a20ca062ca4345e9d69035a3fdfa5f6ebfc49c36b0116fd0ba2323af75bf"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rusty_core v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 |     for (i, line) in stream_reader.lines().enumerate() {
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `JobStatus`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum JobStatus {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `JobInfo`
[INFO] [stderr]   --> src/main.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct JobInfo {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "04b0a20ca062ca4345e9d69035a3fdfa5f6ebfc49c36b0116fd0ba2323af75bf"`
[INFO] running `"docker" "rm" "-f" "04b0a20ca062ca4345e9d69035a3fdfa5f6ebfc49c36b0116fd0ba2323af75bf"`
[INFO] [stdout] 04b0a20ca062ca4345e9d69035a3fdfa5f6ebfc49c36b0116fd0ba2323af75bf
[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/MorganRodgers/rusty_core:/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] 4be08e2f658e9d76b0f3a7b67fd4d1e2c818941198fd58021c15ff072e9bb9e7
[INFO] running `"docker" "start" "-a" "4be08e2f658e9d76b0f3a7b67fd4d1e2c818941198fd58021c15ff072e9bb9e7"`
[INFO] [stderr]    Compiling rusty_core v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 |     for (i, line) in stream_reader.lines().enumerate() {
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `JobStatus`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum JobStatus {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `JobInfo`
[INFO] [stderr]   --> src/main.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct JobInfo {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "4be08e2f658e9d76b0f3a7b67fd4d1e2c818941198fd58021c15ff072e9bb9e7"`
[INFO] running `"docker" "rm" "-f" "4be08e2f658e9d76b0f3a7b67fd4d1e2c818941198fd58021c15ff072e9bb9e7"`
[INFO] [stdout] 4be08e2f658e9d76b0f3a7b67fd4d1e2c818941198fd58021c15ff072e9bb9e7
[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/MorganRodgers/rusty_core:/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] 72ff1b1366330a304cae2a91dcd886da2ffa5df9fe5e68acb1b001661ec5fd66
[INFO] running `"docker" "start" "-a" "72ff1b1366330a304cae2a91dcd886da2ffa5df9fe5e68acb1b001661ec5fd66"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_core-758266f43aaf6805
[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" "72ff1b1366330a304cae2a91dcd886da2ffa5df9fe5e68acb1b001661ec5fd66"`
[INFO] running `"docker" "rm" "-f" "72ff1b1366330a304cae2a91dcd886da2ffa5df9fe5e68acb1b001661ec5fd66"`
[INFO] [stdout] 72ff1b1366330a304cae2a91dcd886da2ffa5df9fe5e68acb1b001661ec5fd66