[INFO] updating cached repository ramvalleru/Rust-beginner-mistakes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ramvalleru/Rust-beginner-mistakes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ramvalleru/Rust-beginner-mistakes" "work/ex/beta-1.37-6/sources/1.36.0/gh/ramvalleru/Rust-beginner-mistakes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ramvalleru/Rust-beginner-mistakes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ramvalleru/Rust-beginner-mistakes" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ramvalleru/Rust-beginner-mistakes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ramvalleru/Rust-beginner-mistakes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0b55edb0a7f1060e6c00b58144d364153b1bf290
[INFO] sha for GitHub repo ramvalleru/Rust-beginner-mistakes: 0b55edb0a7f1060e6c00b58144d364153b1bf290
[INFO] validating manifest of ramvalleru/Rust-beginner-mistakes on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ramvalleru/Rust-beginner-mistakes on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ramvalleru/Rust-beginner-mistakes
[INFO] finished frobbing ramvalleru/Rust-beginner-mistakes
[INFO] frobbed toml for ramvalleru/Rust-beginner-mistakes written to work/ex/beta-1.37-6/sources/1.36.0/gh/ramvalleru/Rust-beginner-mistakes/Cargo.toml
[INFO] started frobbing ramvalleru/Rust-beginner-mistakes
[INFO] finished frobbing ramvalleru/Rust-beginner-mistakes
[INFO] frobbed toml for ramvalleru/Rust-beginner-mistakes written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ramvalleru/Rust-beginner-mistakes/Cargo.toml
[INFO] crate ramvalleru/Rust-beginner-mistakes already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ramvalleru/Rust-beginner-mistakes against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ramvalleru/Rust-beginner-mistakes:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 3c4c78414ba5df08d85f6ed800bd3f8294bdad961f7c677d1f5a63e21f4a42a1
[INFO] running `"docker" "start" "-a" "3c4c78414ba5df08d85f6ed800bd3f8294bdad961f7c677d1f5a63e21f4a42a1"`
[INFO] [stderr]    Compiling rustbyexample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `sban`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     sban: u32,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `price`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     price: f32
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "3c4c78414ba5df08d85f6ed800bd3f8294bdad961f7c677d1f5a63e21f4a42a1"`
[INFO] running `"docker" "rm" "-f" "3c4c78414ba5df08d85f6ed800bd3f8294bdad961f7c677d1f5a63e21f4a42a1"`
[INFO] [stdout] 3c4c78414ba5df08d85f6ed800bd3f8294bdad961f7c677d1f5a63e21f4a42a1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ramvalleru/Rust-beginner-mistakes:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 627e01c624c674dca2cc321b091e354f943085493cfc374647000d660a22538b
[INFO] running `"docker" "start" "-a" "627e01c624c674dca2cc321b091e354f943085493cfc374647000d660a22538b"`
[INFO] [stderr]    Compiling rustbyexample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `sban`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     sban: u32,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `price`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     price: f32
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "627e01c624c674dca2cc321b091e354f943085493cfc374647000d660a22538b"`
[INFO] running `"docker" "rm" "-f" "627e01c624c674dca2cc321b091e354f943085493cfc374647000d660a22538b"`
[INFO] [stdout] 627e01c624c674dca2cc321b091e354f943085493cfc374647000d660a22538b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ramvalleru/Rust-beginner-mistakes:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 1cd0fb454590a4d7d58e220144cabb3ff6c83aacbe433753aaab3d61decbc66f
[INFO] running `"docker" "start" "-a" "1cd0fb454590a4d7d58e220144cabb3ff6c83aacbe433753aaab3d61decbc66f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustbyexample-3d4963d84fcf4af0
[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" "1cd0fb454590a4d7d58e220144cabb3ff6c83aacbe433753aaab3d61decbc66f"`
[INFO] running `"docker" "rm" "-f" "1cd0fb454590a4d7d58e220144cabb3ff6c83aacbe433753aaab3d61decbc66f"`
[INFO] [stdout] 1cd0fb454590a4d7d58e220144cabb3ff6c83aacbe433753aaab3d61decbc66f