[INFO] updating cached repository wezm/serde-duplicate-field
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wezm/serde-duplicate-field
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wezm/serde-duplicate-field" "work/ex/beta-1.38-1/sources/1.37.0/gh/wezm/serde-duplicate-field"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wezm/serde-duplicate-field'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wezm/serde-duplicate-field" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wezm/serde-duplicate-field"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wezm/serde-duplicate-field'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6cd23ec38321f71c5dcecceb7c52c1daf82da5c1
[INFO] sha for GitHub repo wezm/serde-duplicate-field: 6cd23ec38321f71c5dcecceb7c52c1daf82da5c1
[INFO] validating manifest of wezm/serde-duplicate-field 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 wezm/serde-duplicate-field 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 wezm/serde-duplicate-field
[INFO] finished frobbing wezm/serde-duplicate-field
[INFO] frobbed toml for wezm/serde-duplicate-field written to work/ex/beta-1.38-1/sources/1.37.0/gh/wezm/serde-duplicate-field/Cargo.toml
[INFO] started frobbing wezm/serde-duplicate-field
[INFO] finished frobbing wezm/serde-duplicate-field
[INFO] frobbed toml for wezm/serde-duplicate-field written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wezm/serde-duplicate-field/Cargo.toml
[INFO] crate wezm/serde-duplicate-field 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 wezm/serde-duplicate-field 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-6/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/wezm/serde-duplicate-field:/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] fb4147e254e5171a4ad4cd6fd9e8eb9f7250cfd139efde6da1f994ebae863d6f
[INFO] running `"docker" "start" "-a" "fb4147e254e5171a4ad4cd6fd9e8eb9f7250cfd139efde6da1f994ebae863d6f"`
[INFO] [stderr]    Compiling serde v1.0.36
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling serde_derive_internals v0.22.2
[INFO] [stderr]    Compiling serde_derive v1.0.36
[INFO] [stderr]    Compiling serde_json v1.0.13
[INFO] [stderr]    Compiling serde-duplicate-field v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.46s
[INFO] running `"docker" "inspect" "fb4147e254e5171a4ad4cd6fd9e8eb9f7250cfd139efde6da1f994ebae863d6f"`
[INFO] running `"docker" "rm" "-f" "fb4147e254e5171a4ad4cd6fd9e8eb9f7250cfd139efde6da1f994ebae863d6f"`
[INFO] [stdout] fb4147e254e5171a4ad4cd6fd9e8eb9f7250cfd139efde6da1f994ebae863d6f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/wezm/serde-duplicate-field:/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] 32c3aa8c093763cd09da89fc3c64f9c37ae6514667a1653cedb8a8dc97ad688d
[INFO] running `"docker" "start" "-a" "32c3aa8c093763cd09da89fc3c64f9c37ae6514667a1653cedb8a8dc97ad688d"`
[INFO] [stderr]    Compiling serde-duplicate-field v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `"docker" "inspect" "32c3aa8c093763cd09da89fc3c64f9c37ae6514667a1653cedb8a8dc97ad688d"`
[INFO] running `"docker" "rm" "-f" "32c3aa8c093763cd09da89fc3c64f9c37ae6514667a1653cedb8a8dc97ad688d"`
[INFO] [stdout] 32c3aa8c093763cd09da89fc3c64f9c37ae6514667a1653cedb8a8dc97ad688d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/wezm/serde-duplicate-field:/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] b3f249266689151801ccf5856161994d6c7e94454cbb0016a6124cdf5966d5ea
[INFO] running `"docker" "start" "-a" "b3f249266689151801ccf5856161994d6c7e94454cbb0016a6124cdf5966d5ea"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/serde_duplicate_field-3bb63d3443ad952d
[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" "b3f249266689151801ccf5856161994d6c7e94454cbb0016a6124cdf5966d5ea"`
[INFO] running `"docker" "rm" "-f" "b3f249266689151801ccf5856161994d6c7e94454cbb0016a6124cdf5966d5ea"`
[INFO] [stdout] b3f249266689151801ccf5856161994d6c7e94454cbb0016a6124cdf5966d5ea