[INFO] updating cached repository jsandler18/pdf_form
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jsandler18/pdf_form
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jsandler18/pdf_form" "work/ex/beta-1.38-1/sources/1.37.0/gh/jsandler18/pdf_form"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jsandler18/pdf_form'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jsandler18/pdf_form" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jsandler18/pdf_form"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jsandler18/pdf_form'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1f43c2da8648de9cd28db903a35289c87a7dec1d
[INFO] sha for GitHub repo jsandler18/pdf_form: 1f43c2da8648de9cd28db903a35289c87a7dec1d
[INFO] validating manifest of jsandler18/pdf_form 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 jsandler18/pdf_form 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 jsandler18/pdf_form
[INFO] finished frobbing jsandler18/pdf_form
[INFO] frobbed toml for jsandler18/pdf_form written to work/ex/beta-1.38-1/sources/1.37.0/gh/jsandler18/pdf_form/Cargo.toml
[INFO] started frobbing jsandler18/pdf_form
[INFO] finished frobbing jsandler18/pdf_form
[INFO] frobbed toml for jsandler18/pdf_form written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jsandler18/pdf_form/Cargo.toml
[INFO] crate jsandler18/pdf_form 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jsandler18/pdf_form/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 jsandler18/pdf_form 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jsandler18/pdf_form:/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] ab1de62af9d8916c1567854cc2b249408a34b3c4f9b198462639f03d70c362fa
[INFO] running `"docker" "start" "-a" "ab1de62af9d8916c1567854cc2b249408a34b3c4f9b198462639f03d70c362fa"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling pom v1.1.0
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling derive-error v0.0.4
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling lopdf v0.15.3
[INFO] [stderr]    Compiling pdf_form v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.59s
[INFO] running `"docker" "inspect" "ab1de62af9d8916c1567854cc2b249408a34b3c4f9b198462639f03d70c362fa"`
[INFO] running `"docker" "rm" "-f" "ab1de62af9d8916c1567854cc2b249408a34b3c4f9b198462639f03d70c362fa"`
[INFO] [stdout] ab1de62af9d8916c1567854cc2b249408a34b3c4f9b198462639f03d70c362fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jsandler18/pdf_form:/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] f17de595ca35da70debd0645ab50f7cfdfb96b225df11200a93b603bd1146559
[INFO] running `"docker" "start" "-a" "f17de595ca35da70debd0645ab50f7cfdfb96b225df11200a93b603bd1146559"`
[INFO] [stderr]    Compiling pdf_form v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "f17de595ca35da70debd0645ab50f7cfdfb96b225df11200a93b603bd1146559"`
[INFO] running `"docker" "rm" "-f" "f17de595ca35da70debd0645ab50f7cfdfb96b225df11200a93b603bd1146559"`
[INFO] [stdout] f17de595ca35da70debd0645ab50f7cfdfb96b225df11200a93b603bd1146559
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jsandler18/pdf_form:/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] 83da3c17c81030b3c8c6be18244dc02d6926c6e12d771cdfa90c60d49e5cf60b
[INFO] running `"docker" "start" "-a" "83da3c17c81030b3c8c6be18244dc02d6926c6e12d771cdfa90c60d49e5cf60b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pdf_form-78f75665cbed3c6d
[INFO] [stderr]    Doc-tests pdf_form
[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] [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" "83da3c17c81030b3c8c6be18244dc02d6926c6e12d771cdfa90c60d49e5cf60b"`
[INFO] running `"docker" "rm" "-f" "83da3c17c81030b3c8c6be18244dc02d6926c6e12d771cdfa90c60d49e5cf60b"`
[INFO] [stdout] 83da3c17c81030b3c8c6be18244dc02d6926c6e12d771cdfa90c60d49e5cf60b