[INFO] cloning repository JoshOrndorff/rustdoc-playground
[INFO] running `"git" "clone" "--bare" "git://github.com/JoshOrndorff/rustdoc-playground.git" "work/cache/sources/gh/JoshOrndorff/rustdoc-playground"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/JoshOrndorff/rustdoc-playground'...
[INFO] running `"git" "clone" "work/cache/sources/gh/JoshOrndorff/rustdoc-playground" "work/ex/beta-1.37-6/sources/1.36.0/gh/JoshOrndorff/rustdoc-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/JoshOrndorff/rustdoc-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JoshOrndorff/rustdoc-playground" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JoshOrndorff/rustdoc-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JoshOrndorff/rustdoc-playground 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 JoshOrndorff/rustdoc-playground
[INFO] finished frobbing JoshOrndorff/rustdoc-playground
[INFO] frobbed toml for JoshOrndorff/rustdoc-playground written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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 JoshOrndorff/rustdoc-playground 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-7/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/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] e097b3b7c49c7ada94e9e2d3d5ce0a5f36df2831ddf6499d720d4a0e3f57b16f
[INFO] running `"docker" "start" "-a" "e097b3b7c49c7ada94e9e2d3d5ce0a5f36df2831ddf6499d720d4a0e3f57b16f"`
[INFO] [stderr]    Compiling sample-rust-doc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "e097b3b7c49c7ada94e9e2d3d5ce0a5f36df2831ddf6499d720d4a0e3f57b16f"`
[INFO] running `"docker" "rm" "-f" "e097b3b7c49c7ada94e9e2d3d5ce0a5f36df2831ddf6499d720d4a0e3f57b16f"`
[INFO] [stdout] e097b3b7c49c7ada94e9e2d3d5ce0a5f36df2831ddf6499d720d4a0e3f57b16f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] b58ad0b18d4c9c5d814f98cf5a8edcf2f575c7533a971ecb53266b0f666eafd9
[INFO] running `"docker" "start" "-a" "b58ad0b18d4c9c5d814f98cf5a8edcf2f575c7533a971ecb53266b0f666eafd9"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sample-rust-doc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `"docker" "inspect" "b58ad0b18d4c9c5d814f98cf5a8edcf2f575c7533a971ecb53266b0f666eafd9"`
[INFO] running `"docker" "rm" "-f" "b58ad0b18d4c9c5d814f98cf5a8edcf2f575c7533a971ecb53266b0f666eafd9"`
[INFO] [stdout] b58ad0b18d4c9c5d814f98cf5a8edcf2f575c7533a971ecb53266b0f666eafd9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 3ef0481de9b00a775b3c080091e70c91dba9fbf249134d7a31a7024c0e40349f
[INFO] running `"docker" "start" "-a" "3ef0481de9b00a775b3c080091e70c91dba9fbf249134d7a31a7024c0e40349f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sample_rust_doc-b4d4782899fde6d1
[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" "3ef0481de9b00a775b3c080091e70c91dba9fbf249134d7a31a7024c0e40349f"`
[INFO] running `"docker" "rm" "-f" "3ef0481de9b00a775b3c080091e70c91dba9fbf249134d7a31a7024c0e40349f"`
[INFO] [stdout] 3ef0481de9b00a775b3c080091e70c91dba9fbf249134d7a31a7024c0e40349f