[INFO] fetching crate serde-json-helpers 0.1.2... [INFO] testing serde-json-helpers-0.1.2 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate serde-json-helpers 0.1.2 into /workspace/builds/worker-1-tc2/source [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-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate serde-json-helpers 0.1.2 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 15 packages to latest compatible versions [INFO] [stderr] Adding proc-macro2 v0.4.30 (available: v1.0.101) [INFO] [stderr] Adding quote v0.6.13 (available: v1.0.41) [INFO] [stderr] Adding syn v0.15.44 (available: v2.0.106) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 210e60e0f6163885b8072a993314ae1fe527d3051b2b9ffe0c164c8b76dd9bee [INFO] running `Command { std: "docker" "start" "-a" "210e60e0f6163885b8072a993314ae1fe527d3051b2b9ffe0c164c8b76dd9bee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "210e60e0f6163885b8072a993314ae1fe527d3051b2b9ffe0c164c8b76dd9bee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "210e60e0f6163885b8072a993314ae1fe527d3051b2b9ffe0c164c8b76dd9bee", kill_on_drop: false }` [INFO] [stdout] 210e60e0f6163885b8072a993314ae1fe527d3051b2b9ffe0c164c8b76dd9bee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1a2b2113048bdfb9a787f342326298be6de8000079219a856bf3505174dece4d [INFO] running `Command { std: "docker" "start" "-a" "1a2b2113048bdfb9a787f342326298be6de8000079219a856bf3505174dece4d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling quote v1.0.41 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling serde-json-helpers v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `str::::to_ascii_uppercase` that must be used [INFO] [stdout] --> src/string_transform.rs:99:21 [INFO] [stdout] | [INFO] [stdout] 99 | s.to_ascii_uppercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: to uppercase the value in-place, use `make_ascii_uppercase()` [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 99 | let _ = s.to_ascii_uppercase(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `str::::to_ascii_lowercase` that must be used [INFO] [stdout] --> src/string_transform.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | s.to_ascii_lowercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: to lowercase the value in-place, use `make_ascii_lowercase()` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 115 | let _ = s.to_ascii_lowercase(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.33s [INFO] running `Command { std: "docker" "inspect" "1a2b2113048bdfb9a787f342326298be6de8000079219a856bf3505174dece4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a2b2113048bdfb9a787f342326298be6de8000079219a856bf3505174dece4d", kill_on_drop: false }` [INFO] [stdout] 1a2b2113048bdfb9a787f342326298be6de8000079219a856bf3505174dece4d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 62d3d8ca28328300ca105946bea6ed38e8fd67689c0f1c7803e3846cc008e02b [INFO] running `Command { std: "docker" "start" "-a" "62d3d8ca28328300ca105946bea6ed38e8fd67689c0f1c7803e3846cc008e02b", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling serde-json-helpers v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `str::::to_ascii_uppercase` that must be used [INFO] [stdout] --> src/string_transform.rs:99:21 [INFO] [stdout] | [INFO] [stdout] 99 | s.to_ascii_uppercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: to uppercase the value in-place, use `make_ascii_uppercase()` [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 99 | let _ = s.to_ascii_uppercase(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `str::::to_ascii_lowercase` that must be used [INFO] [stdout] --> src/string_transform.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | s.to_ascii_lowercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: to lowercase the value in-place, use `make_ascii_lowercase()` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 115 | let _ = s.to_ascii_lowercase(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `str::::to_ascii_uppercase` that must be used [INFO] [stdout] --> src/string_transform.rs:99:21 [INFO] [stdout] | [INFO] [stdout] 99 | s.to_ascii_uppercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: to uppercase the value in-place, use `make_ascii_uppercase()` [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 99 | let _ = s.to_ascii_uppercase(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `str::::to_ascii_lowercase` that must be used [INFO] [stdout] --> src/string_transform.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | s.to_ascii_lowercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: to lowercase the value in-place, use `make_ascii_lowercase()` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 115 | let _ = s.to_ascii_lowercase(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 5.80s [INFO] running `Command { std: "docker" "inspect" "62d3d8ca28328300ca105946bea6ed38e8fd67689c0f1c7803e3846cc008e02b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "62d3d8ca28328300ca105946bea6ed38e8fd67689c0f1c7803e3846cc008e02b", kill_on_drop: false }` [INFO] [stdout] 62d3d8ca28328300ca105946bea6ed38e8fd67689c0f1c7803e3846cc008e02b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e4ffc6e84cbbb3251c27f05112fd608dc0e37df384b8100b5d95d6398976883b [INFO] running `Command { std: "docker" "start" "-a" "e4ffc6e84cbbb3251c27f05112fd608dc0e37df384b8100b5d95d6398976883b", kill_on_drop: false }` [INFO] [stderr] warning: unused return value of `str::::to_ascii_uppercase` that must be used [INFO] [stderr] --> src/string_transform.rs:99:21 [INFO] [stderr] | [INFO] [stderr] 99 | s.to_ascii_uppercase(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to uppercase the value in-place, use `make_ascii_uppercase()` [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 99 | let _ = s.to_ascii_uppercase(); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `str::::to_ascii_lowercase` that must be used [INFO] [stderr] --> src/string_transform.rs:115:13 [INFO] [stderr] | [INFO] [stderr] 115 | s.to_ascii_lowercase(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to lowercase the value in-place, use `make_ascii_lowercase()` [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 115 | let _ = s.to_ascii_lowercase(); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `serde-json-helpers` (lib) generated 2 warnings [INFO] [stderr] warning: `serde-json-helpers` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_json_helpers-663390673752c4b7) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running tests/deserialize.rs (/opt/rustwide/target/debug/deps/deserialize-534590eb2e303641) [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test can_deserialize_lowercase ... ok [INFO] [stdout] test can_deserialize_without_transform ... ok [INFO] [stdout] test can_deserialize_prepended_without_transform ... ok [INFO] [stdout] test can_serialize_kebab_case ... 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] [stderr] Running tests/serialize.rs (/opt/rustwide/target/debug/deps/serialize-29601a20f5d18330) [INFO] [stdout] test can_deserialize_uppercase ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test can_serialize_lowercase ... ok [INFO] [stderr] Running tests/util.rs (/opt/rustwide/target/debug/deps/util-f7a9090fcd6b5edc) [INFO] [stdout] test can_serialize_kebab_case ... ok [INFO] [stderr] Doc-tests serde_json_helpers [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] test can_serialize_prepended_snake_case ... ok [INFO] [stdout] test can_serialize_prepended_without_transform ... ok [INFO] [stdout] test can_serialize_screaming_kebab_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; finished in 0.00s [INFO] [stdout] [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; finished in 0.00s [INFO] [stdout] [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; finished in 0.28s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e4ffc6e84cbbb3251c27f05112fd608dc0e37df384b8100b5d95d6398976883b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4ffc6e84cbbb3251c27f05112fd608dc0e37df384b8100b5d95d6398976883b", kill_on_drop: false }` [INFO] [stdout] e4ffc6e84cbbb3251c27f05112fd608dc0e37df384b8100b5d95d6398976883b