[INFO] updating cached repository https://github.com/yjh0502/serde-gen
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 49e2206cd55dc46e357855cc01fd455fb6a9f055
[INFO] checking yjh0502/serde-gen against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyjh0502%2Fserde-gen" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yjh0502/serde-gen on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/yjh0502/serde-gen
[INFO] finished tweaking git repo https://github.com/yjh0502/serde-gen
[INFO] tweaked toml for git repo https://github.com/yjh0502/serde-gen written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/yjh0502/serde-gen already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7b9ec4cbd0929813c1bb0d587e6e7021a5af4ccbf96048400f8267c2dd62efa6
[INFO] running `"docker" "start" "-a" "7b9ec4cbd0929813c1bb0d587e6e7021a5af4ccbf96048400f8267c2dd62efa6"`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]    Compiling gcc v0.3.50
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Checking backtrace v0.3.2
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking serde-gen v0.1.0 (/opt/rustwide/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 warning 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 warning 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: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning 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 warning 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 37.70s
[INFO] running `"docker" "inspect" "7b9ec4cbd0929813c1bb0d587e6e7021a5af4ccbf96048400f8267c2dd62efa6"`
[INFO] running `"docker" "rm" "-f" "7b9ec4cbd0929813c1bb0d587e6e7021a5af4ccbf96048400f8267c2dd62efa6"`
[INFO] [stdout] 7b9ec4cbd0929813c1bb0d587e6e7021a5af4ccbf96048400f8267c2dd62efa6