[INFO] crate serde-json-helpers 0.1.2 is already in cache
[INFO] testing serde-json-helpers-0.1.2 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate serde-json-helpers 0.1.2 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate serde-json-helpers 0.1.2 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate serde-json-helpers 0.1.2
[INFO] finished tweaking crates.io crate serde-json-helpers 0.1.2
[INFO] tweaked toml for crates.io crate serde-json-helpers 0.1.2 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 81343c6cfea212622d185f92799854af8e7ab7ce262ff2a099c3531e9eabf226
[INFO] running `"docker" "start" "-a" "81343c6cfea212622d185f92799854af8e7ab7ce262ff2a099c3531e9eabf226"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling serde-json-helpers v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.97s
[INFO] running `"docker" "inspect" "81343c6cfea212622d185f92799854af8e7ab7ce262ff2a099c3531e9eabf226"`
[INFO] running `"docker" "rm" "-f" "81343c6cfea212622d185f92799854af8e7ab7ce262ff2a099c3531e9eabf226"`
[INFO] [stdout] 81343c6cfea212622d185f92799854af8e7ab7ce262ff2a099c3531e9eabf226
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 547cdad9fce73bbe23ddc598889023f71a0c7444b20d23e2970dbb2c53955aeb
[INFO] running `"docker" "start" "-a" "547cdad9fce73bbe23ddc598889023f71a0c7444b20d23e2970dbb2c53955aeb"`
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling serde-json-helpers v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.81s
[INFO] running `"docker" "inspect" "547cdad9fce73bbe23ddc598889023f71a0c7444b20d23e2970dbb2c53955aeb"`
[INFO] running `"docker" "rm" "-f" "547cdad9fce73bbe23ddc598889023f71a0c7444b20d23e2970dbb2c53955aeb"`
[INFO] [stdout] 547cdad9fce73bbe23ddc598889023f71a0c7444b20d23e2970dbb2c53955aeb
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1f075acdb2cfd4b4dfc9fc14822c8b84136cb3cc1cd6b2a2aeae4f9b3bed921b
[INFO] running `"docker" "start" "-a" "1f075acdb2cfd4b4dfc9fc14822c8b84136cb3cc1cd6b2a2aeae4f9b3bed921b"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/serde_json_helpers-d1f2f823c4fc4c04
[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] [stderr]      Running /opt/rustwide/target/debug/deps/deserialize-4027b96ba871265a
[INFO] [stdout] running 9 tests
[INFO] [stdout] test can_deserialize_lowercase ... ok
[INFO] [stdout] test can_deserialize_uppercase ... ok
[INFO] [stdout] test can_serialize_kebab_case ... ok
[INFO] [stdout] test can_deserialize_without_transform ... ok
[INFO] [stdout] test can_deserialize_prepended_without_transform ... ok
[INFO] [stdout] test can_serialize_screaming_kebab_case ... ok
[INFO] [stdout] test can_serialize_prepended_snake_case ... ok
[INFO] [stdout] test can_serialize_snake_case ... ok
[INFO] [stdout] test can_serialize_screaming_snake_case ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/serialize-fe196c853d2d871b
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test can_serialize_prepended_without_transform ... ok
[INFO] [stdout] test can_serialize_lowercase ... ok
[INFO] [stdout] test can_serialize_prepended_snake_case ... ok
[INFO] [stdout] test can_serialize_screaming_snake_case ... ok
[INFO] [stdout] test can_serialize_kebab_case ... ok
[INFO] [stdout] test can_serialize_screaming_kebab_case ... ok
[INFO] [stdout] test can_serialize_snake_case ... ok
[INFO] [stdout] test can_serialize_uppercase ... ok
[INFO] [stdout] test can_serialize_without_transform ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/util-ddbd3121d8365d6d
[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] [stderr]    Doc-tests serde-json-helpers
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1f075acdb2cfd4b4dfc9fc14822c8b84136cb3cc1cd6b2a2aeae4f9b3bed921b"`
[INFO] running `"docker" "rm" "-f" "1f075acdb2cfd4b4dfc9fc14822c8b84136cb3cc1cd6b2a2aeae4f9b3bed921b"`
[INFO] [stdout] 1f075acdb2cfd4b4dfc9fc14822c8b84136cb3cc1cd6b2a2aeae4f9b3bed921b