[INFO] updating cached repository JoshOrndorff/rustdoc-playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JoshOrndorff/rustdoc-playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JoshOrndorff/rustdoc-playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/JoshOrndorff/rustdoc-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JoshOrndorff/rustdoc-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JoshOrndorff/rustdoc-playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JoshOrndorff/rustdoc-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JoshOrndorff/rustdoc-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f518b5729631df427b52267e783f3b77bc3a6815
[INFO] sha for GitHub repo JoshOrndorff/rustdoc-playground: f518b5729631df427b52267e783f3b77bc3a6815
[INFO] validating manifest of JoshOrndorff/rustdoc-playground 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 JoshOrndorff/rustdoc-playground 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 JoshOrndorff/rustdoc-playground
[INFO] finished frobbing JoshOrndorff/rustdoc-playground
[INFO] frobbed toml for JoshOrndorff/rustdoc-playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/JoshOrndorff/rustdoc-playground/Cargo.toml
[INFO] started frobbing JoshOrndorff/rustdoc-playground
[INFO] finished frobbing JoshOrndorff/rustdoc-playground
[INFO] frobbed toml for JoshOrndorff/rustdoc-playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JoshOrndorff/rustdoc-playground/Cargo.toml
[INFO] crate JoshOrndorff/rustdoc-playground 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 JoshOrndorff/rustdoc-playground 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-0/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/JoshOrndorff/rustdoc-playground:/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] d007bd127b632f2c10706888055291a2c34ebc2accbe39ae86d5f18e2cddb07c
[INFO] running `"docker" "start" "-a" "d007bd127b632f2c10706888055291a2c34ebc2accbe39ae86d5f18e2cddb07c"`
[INFO] [stderr]    Compiling sample-rust-doc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "d007bd127b632f2c10706888055291a2c34ebc2accbe39ae86d5f18e2cddb07c"`
[INFO] running `"docker" "rm" "-f" "d007bd127b632f2c10706888055291a2c34ebc2accbe39ae86d5f18e2cddb07c"`
[INFO] [stdout] d007bd127b632f2c10706888055291a2c34ebc2accbe39ae86d5f18e2cddb07c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/JoshOrndorff/rustdoc-playground:/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] 57bc2cd83824951ad6a6e20c87bf9ec7159af67ca010e6e8c0873b6a7aacac7e
[INFO] running `"docker" "start" "-a" "57bc2cd83824951ad6a6e20c87bf9ec7159af67ca010e6e8c0873b6a7aacac7e"`
[INFO] [stderr]    Compiling sample-rust-doc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "57bc2cd83824951ad6a6e20c87bf9ec7159af67ca010e6e8c0873b6a7aacac7e"`
[INFO] running `"docker" "rm" "-f" "57bc2cd83824951ad6a6e20c87bf9ec7159af67ca010e6e8c0873b6a7aacac7e"`
[INFO] [stdout] 57bc2cd83824951ad6a6e20c87bf9ec7159af67ca010e6e8c0873b6a7aacac7e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/JoshOrndorff/rustdoc-playground:/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] 46d467365ce007ab11fdf4ba403aa7063933ac99c060e8894777d27aa911cb6d
[INFO] running `"docker" "start" "-a" "46d467365ce007ab11fdf4ba403aa7063933ac99c060e8894777d27aa911cb6d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sample_rust_doc-a5fe367c3c09f07e
[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" "46d467365ce007ab11fdf4ba403aa7063933ac99c060e8894777d27aa911cb6d"`
[INFO] running `"docker" "rm" "-f" "46d467365ce007ab11fdf4ba403aa7063933ac99c060e8894777d27aa911cb6d"`
[INFO] [stdout] 46d467365ce007ab11fdf4ba403aa7063933ac99c060e8894777d27aa911cb6d