[INFO] updating cached repository yjh0502/serde-gen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yjh0502/serde-gen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yjh0502/serde-gen" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/yjh0502/serde-gen"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/yjh0502/serde-gen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yjh0502/serde-gen" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/yjh0502/serde-gen"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/yjh0502/serde-gen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 49e2206cd55dc46e357855cc01fd455fb6a9f055
[INFO] sha for GitHub repo yjh0502/serde-gen: 49e2206cd55dc46e357855cc01fd455fb6a9f055
[INFO] validating manifest of yjh0502/serde-gen on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of yjh0502/serde-gen on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing yjh0502/serde-gen
[INFO] finished frobbing yjh0502/serde-gen
[INFO] frobbed toml for yjh0502/serde-gen written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/yjh0502/serde-gen/Cargo.toml
[INFO] started frobbing yjh0502/serde-gen
[INFO] finished frobbing yjh0502/serde-gen
[INFO] frobbed toml for yjh0502/serde-gen written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/yjh0502/serde-gen/Cargo.toml
[INFO] crate yjh0502/serde-gen has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building yjh0502/serde-gen against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/yjh0502/serde-gen:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 91cb4746d38c105146e8c26d952040141b0d398d502f1c1bb45d85db2582c0e9
[INFO] running `"docker" "start" "-a" "91cb4746d38c105146e8c26d952040141b0d398d502f1c1bb45d85db2582c0e9"`
[INFO] [stderr]    Compiling gcc v0.3.50
[INFO] [stderr]    Compiling bitflags v0.8.2
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]    Compiling clap v2.24.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]    Compiling backtrace v0.3.2
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling serde-gen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/lib.rs:163:1
[INFO] [stderr]     |
[INFO] [stderr] 163 | / error_chain!{
[INFO] [stderr] 164 | |     foreign_links {
[INFO] [stderr] 165 | |         Io(std::io::Error);
[INFO] [stderr] 166 | |         Json(serde_json::Error);
[INFO] [stderr] 167 | |     }
[INFO] [stderr] 168 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/lib.rs:163:1
[INFO] [stderr]     |
[INFO] [stderr] 163 | / error_chain!{
[INFO] [stderr] 164 | |     foreign_links {
[INFO] [stderr] 165 | |         Io(std::io::Error);
[INFO] [stderr] 166 | |         Json(serde_json::Error);
[INFO] [stderr] 167 | |     }
[INFO] [stderr] 168 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.23s
[INFO] running `"docker" "inspect" "91cb4746d38c105146e8c26d952040141b0d398d502f1c1bb45d85db2582c0e9"`
[INFO] running `"docker" "rm" "-f" "91cb4746d38c105146e8c26d952040141b0d398d502f1c1bb45d85db2582c0e9"`
[INFO] [stdout] 91cb4746d38c105146e8c26d952040141b0d398d502f1c1bb45d85db2582c0e9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/yjh0502/serde-gen:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3f004fb48389e1722c05b946c8b9e5198fd18c1e3320ff04c1dbf48db7960b6b
[INFO] running `"docker" "start" "-a" "3f004fb48389e1722c05b946c8b9e5198fd18c1e3320ff04c1dbf48db7960b6b"`
[INFO] [stderr]    Compiling serde-gen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/lib.rs:163:1
[INFO] [stderr]     |
[INFO] [stderr] 163 | / error_chain!{
[INFO] [stderr] 164 | |     foreign_links {
[INFO] [stderr] 165 | |         Io(std::io::Error);
[INFO] [stderr] 166 | |         Json(serde_json::Error);
[INFO] [stderr] 167 | |     }
[INFO] [stderr] 168 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/lib.rs:163:1
[INFO] [stderr]     |
[INFO] [stderr] 163 | / error_chain!{
[INFO] [stderr] 164 | |     foreign_links {
[INFO] [stderr] 165 | |         Io(std::io::Error);
[INFO] [stderr] 166 | |         Json(serde_json::Error);
[INFO] [stderr] 167 | |     }
[INFO] [stderr] 168 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.86s
[INFO] running `"docker" "inspect" "3f004fb48389e1722c05b946c8b9e5198fd18c1e3320ff04c1dbf48db7960b6b"`
[INFO] running `"docker" "rm" "-f" "3f004fb48389e1722c05b946c8b9e5198fd18c1e3320ff04c1dbf48db7960b6b"`
[INFO] [stdout] 3f004fb48389e1722c05b946c8b9e5198fd18c1e3320ff04c1dbf48db7960b6b