[INFO] updating cached repository jsyeo/sanity
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jsyeo/sanity
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jsyeo/sanity" "work/ex/beta-1.37-6/sources/1.36.0/gh/jsyeo/sanity"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/jsyeo/sanity'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jsyeo/sanity" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/jsyeo/sanity"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/jsyeo/sanity'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f4594273962943d1b31ea9c8b89b3434193c2267
[INFO] sha for GitHub repo jsyeo/sanity: f4594273962943d1b31ea9c8b89b3434193c2267
[INFO] validating manifest of jsyeo/sanity 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 jsyeo/sanity 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 jsyeo/sanity
[INFO] finished frobbing jsyeo/sanity
[INFO] frobbed toml for jsyeo/sanity written to work/ex/beta-1.37-6/sources/1.36.0/gh/jsyeo/sanity/Cargo.toml
[INFO] started frobbing jsyeo/sanity
[INFO] finished frobbing jsyeo/sanity
[INFO] frobbed toml for jsyeo/sanity written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/jsyeo/sanity/Cargo.toml
[INFO] crate jsyeo/sanity 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 jsyeo/sanity against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/jsyeo/sanity:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] d131415217ddba637d00f498212cc7a1ae20c77aa3abdfe265837f6e641db17c
[INFO] running `"docker" "start" "-a" "d131415217ddba637d00f498212cc7a1ae20c77aa3abdfe265837f6e641db17c"`
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling sanity v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     file.read_to_string(&mut s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `"docker" "inspect" "d131415217ddba637d00f498212cc7a1ae20c77aa3abdfe265837f6e641db17c"`
[INFO] running `"docker" "rm" "-f" "d131415217ddba637d00f498212cc7a1ae20c77aa3abdfe265837f6e641db17c"`
[INFO] [stdout] d131415217ddba637d00f498212cc7a1ae20c77aa3abdfe265837f6e641db17c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/jsyeo/sanity:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 689aff894bf63e8f33e3639b42a0c3e6e0f2747d3623cd80d5479ba1e9719d4c
[INFO] running `"docker" "start" "-a" "689aff894bf63e8f33e3639b42a0c3e6e0f2747d3623cd80d5479ba1e9719d4c"`
[INFO] [stderr]    Compiling sanity v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     file.read_to_string(&mut s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "689aff894bf63e8f33e3639b42a0c3e6e0f2747d3623cd80d5479ba1e9719d4c"`
[INFO] running `"docker" "rm" "-f" "689aff894bf63e8f33e3639b42a0c3e6e0f2747d3623cd80d5479ba1e9719d4c"`
[INFO] [stdout] 689aff894bf63e8f33e3639b42a0c3e6e0f2747d3623cd80d5479ba1e9719d4c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/jsyeo/sanity:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] fd05933b65addf7cad78c6071483fea44118731e6834ffb15e689a1c750797c1
[INFO] running `"docker" "start" "-a" "fd05933b65addf7cad78c6071483fea44118731e6834ffb15e689a1c750797c1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sanity-408d6e6422a6e930
[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" "fd05933b65addf7cad78c6071483fea44118731e6834ffb15e689a1c750797c1"`
[INFO] running `"docker" "rm" "-f" "fd05933b65addf7cad78c6071483fea44118731e6834ffb15e689a1c750797c1"`
[INFO] [stdout] fd05933b65addf7cad78c6071483fea44118731e6834ffb15e689a1c750797c1