[INFO] updating cached repository jht5945/prettyjson
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jht5945/prettyjson
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jht5945/prettyjson" "work/ex/beta-1.38-1/sources/1.37.0/gh/jht5945/prettyjson"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jht5945/prettyjson'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jht5945/prettyjson" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jht5945/prettyjson"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jht5945/prettyjson'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1c2eb2de341947367be6b2e83b71db6e31e12fc6
[INFO] sha for GitHub repo jht5945/prettyjson: 1c2eb2de341947367be6b2e83b71db6e31e12fc6
[INFO] validating manifest of jht5945/prettyjson 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 jht5945/prettyjson 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 jht5945/prettyjson
[INFO] finished frobbing jht5945/prettyjson
[INFO] frobbed toml for jht5945/prettyjson written to work/ex/beta-1.38-1/sources/1.37.0/gh/jht5945/prettyjson/Cargo.toml
[INFO] started frobbing jht5945/prettyjson
[INFO] finished frobbing jht5945/prettyjson
[INFO] frobbed toml for jht5945/prettyjson written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jht5945/prettyjson/Cargo.toml
[INFO] crate jht5945/prettyjson 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]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing jht5945/prettyjson 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jht5945/prettyjson:/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] 64de892bac326f0cfd8c3f91a6b8dc1da5c5941067d6294cefd2c745a9b947b9
[INFO] running `"docker" "start" "-a" "64de892bac326f0cfd8c3f91a6b8dc1da5c5941067d6294cefd2c745a9b947b9"`
[INFO] [stderr]    Compiling json v0.11.14
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling rust_util v0.1.0 (https://github.com/jht5945/rust_util#610871e5)
[INFO] [stderr]    Compiling prettyjson v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn read_to_string(read: &mut Read) -> XResult<String> {
[INFO] [stderr]    |                              ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.74s
[INFO] running `"docker" "inspect" "64de892bac326f0cfd8c3f91a6b8dc1da5c5941067d6294cefd2c745a9b947b9"`
[INFO] running `"docker" "rm" "-f" "64de892bac326f0cfd8c3f91a6b8dc1da5c5941067d6294cefd2c745a9b947b9"`
[INFO] [stdout] 64de892bac326f0cfd8c3f91a6b8dc1da5c5941067d6294cefd2c745a9b947b9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jht5945/prettyjson:/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] 536a7a4b1cb85e0c436f1a0616497d97c4e45f4e06647d779e5f8d4079502248
[INFO] running `"docker" "start" "-a" "536a7a4b1cb85e0c436f1a0616497d97c4e45f4e06647d779e5f8d4079502248"`
[INFO] [stderr]    Compiling prettyjson v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn read_to_string(read: &mut Read) -> XResult<String> {
[INFO] [stderr]    |                              ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "536a7a4b1cb85e0c436f1a0616497d97c4e45f4e06647d779e5f8d4079502248"`
[INFO] running `"docker" "rm" "-f" "536a7a4b1cb85e0c436f1a0616497d97c4e45f4e06647d779e5f8d4079502248"`
[INFO] [stdout] 536a7a4b1cb85e0c436f1a0616497d97c4e45f4e06647d779e5f8d4079502248
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jht5945/prettyjson:/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] e76ea0ad46b16529bd57a5906b17c22fad80ef26884c9340f35136edb01bb087
[INFO] running `"docker" "start" "-a" "e76ea0ad46b16529bd57a5906b17c22fad80ef26884c9340f35136edb01bb087"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prettyjson-e7315d6e5c7651f3
[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" "e76ea0ad46b16529bd57a5906b17c22fad80ef26884c9340f35136edb01bb087"`
[INFO] running `"docker" "rm" "-f" "e76ea0ad46b16529bd57a5906b17c22fad80ef26884c9340f35136edb01bb087"`
[INFO] [stdout] e76ea0ad46b16529bd57a5906b17c22fad80ef26884c9340f35136edb01bb087