[INFO] updating cached repository JacobHaig/Learning-Rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JacobHaig/Learning-Rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JacobHaig/Learning-Rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/JacobHaig/Learning-Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JacobHaig/Learning-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JacobHaig/Learning-Rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JacobHaig/Learning-Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JacobHaig/Learning-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3ebb4bc6299395bad15fba68692b156ce9be0e27
[INFO] sha for GitHub repo JacobHaig/Learning-Rust: 3ebb4bc6299395bad15fba68692b156ce9be0e27
[INFO] validating manifest of JacobHaig/Learning-Rust 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 JacobHaig/Learning-Rust 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 JacobHaig/Learning-Rust
[INFO] finished frobbing JacobHaig/Learning-Rust
[INFO] frobbed toml for JacobHaig/Learning-Rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/JacobHaig/Learning-Rust/Cargo.toml
[INFO] started frobbing JacobHaig/Learning-Rust
[INFO] finished frobbing JacobHaig/Learning-Rust
[INFO] frobbed toml for JacobHaig/Learning-Rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JacobHaig/Learning-Rust/Cargo.toml
[INFO] crate JacobHaig/Learning-Rust 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 JacobHaig/Learning-Rust 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/JacobHaig/Learning-Rust:/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] 3651de426e2ff72bcfca2c9ec505e0227a2294ef7df59b10cc4721fdf745de97
[INFO] running `"docker" "start" "-a" "3651de426e2ff72bcfca2c9ec505e0227a2294ef7df59b10cc4721fdf745de97"`
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `area`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn area(&self) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `area`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn area(r: &Rect) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "3651de426e2ff72bcfca2c9ec505e0227a2294ef7df59b10cc4721fdf745de97"`
[INFO] running `"docker" "rm" "-f" "3651de426e2ff72bcfca2c9ec505e0227a2294ef7df59b10cc4721fdf745de97"`
[INFO] [stdout] 3651de426e2ff72bcfca2c9ec505e0227a2294ef7df59b10cc4721fdf745de97
[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/JacobHaig/Learning-Rust:/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] 2227ab30dfb7eec9e42a297aabb9a5e02cc0a7f2de54b04c6cd2b6db93d6bf1b
[INFO] running `"docker" "start" "-a" "2227ab30dfb7eec9e42a297aabb9a5e02cc0a7f2de54b04c6cd2b6db93d6bf1b"`
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `area`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn area(&self) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `area`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn area(r: &Rect) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "2227ab30dfb7eec9e42a297aabb9a5e02cc0a7f2de54b04c6cd2b6db93d6bf1b"`
[INFO] running `"docker" "rm" "-f" "2227ab30dfb7eec9e42a297aabb9a5e02cc0a7f2de54b04c6cd2b6db93d6bf1b"`
[INFO] [stdout] 2227ab30dfb7eec9e42a297aabb9a5e02cc0a7f2de54b04c6cd2b6db93d6bf1b
[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/JacobHaig/Learning-Rust:/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] d9de76a84db7e1370fa5d9f1997ae6d24103d8f5cb72b5e2178ab8caaeb1e5ae
[INFO] running `"docker" "start" "-a" "d9de76a84db7e1370fa5d9f1997ae6d24103d8f5cb72b5e2178ab8caaeb1e5ae"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/untitled-fc4f56886c1a485d
[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" "d9de76a84db7e1370fa5d9f1997ae6d24103d8f5cb72b5e2178ab8caaeb1e5ae"`
[INFO] running `"docker" "rm" "-f" "d9de76a84db7e1370fa5d9f1997ae6d24103d8f5cb72b5e2178ab8caaeb1e5ae"`
[INFO] [stdout] d9de76a84db7e1370fa5d9f1997ae6d24103d8f5cb72b5e2178ab8caaeb1e5ae