[INFO] fetching crate serde-json-helpers 0.1.2...
[INFO] testing serde-json-helpers-0.1.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate serde-json-helpers 0.1.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate serde-json-helpers 0.1.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 27cd49f146b81825c8d55488b6575a52219459ffc77321d9631433e97c6c5dbc
[INFO] running `Command { std: "docker" "start" "-a" "27cd49f146b81825c8d55488b6575a52219459ffc77321d9631433e97c6c5dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27cd49f146b81825c8d55488b6575a52219459ffc77321d9631433e97c6c5dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27cd49f146b81825c8d55488b6575a52219459ffc77321d9631433e97c6c5dbc", kill_on_drop: false }`
[INFO] [stdout] 27cd49f146b81825c8d55488b6575a52219459ffc77321d9631433e97c6c5dbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8e787cddcf44b51f8ad48c47de5a25421c167dbf8b765822516d2201f216cdc2
[INFO] running `Command { std: "docker" "start" "-a" "8e787cddcf44b51f8ad48c47de5a25421c167dbf8b765822516d2201f216cdc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[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::<impl 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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: to uppercase the value in-place, use `make_ascii_uppercase()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.26s
[INFO] running `Command { std: "docker" "inspect" "8e787cddcf44b51f8ad48c47de5a25421c167dbf8b765822516d2201f216cdc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e787cddcf44b51f8ad48c47de5a25421c167dbf8b765822516d2201f216cdc2", kill_on_drop: false }`
[INFO] [stdout] 8e787cddcf44b51f8ad48c47de5a25421c167dbf8b765822516d2201f216cdc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3a8361edf7be8d7cfe8c66ac147abf70cc3ba9b8e5cbf3e8966e2fc66ecc091b
[INFO] running `Command { std: "docker" "start" "-a" "3a8361edf7be8d7cfe8c66ac147abf70cc3ba9b8e5cbf3e8966e2fc66ecc091b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-json-helpers v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `str::<impl 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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: to uppercase the value in-place, use `make_ascii_uppercase()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl 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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: to uppercase the value in-place, use `make_ascii_uppercase()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "3a8361edf7be8d7cfe8c66ac147abf70cc3ba9b8e5cbf3e8966e2fc66ecc091b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a8361edf7be8d7cfe8c66ac147abf70cc3ba9b8e5cbf3e8966e2fc66ecc091b", kill_on_drop: false }`
[INFO] [stdout] 3a8361edf7be8d7cfe8c66ac147abf70cc3ba9b8e5cbf3e8966e2fc66ecc091b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 41ce965cf08bc56010de99987a3cab37cd10f799b01c82c5572ddeda8f375405
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "41ce965cf08bc56010de99987a3cab37cd10f799b01c82c5572ddeda8f375405", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `str::<impl 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: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: to uppercase the value in-place, use `make_ascii_uppercase()`
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `str::<impl 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] 
[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 [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_json_helpers-157893bdea9f1fdd)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/deserialize.rs (/opt/rustwide/target/debug/deps/deserialize-85e129fee0562618)
[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 9 tests
[INFO] [stdout] test can_deserialize_lowercase ... ok
[INFO] [stdout] test can_deserialize_uppercase ... ok
[INFO] [stdout] test can_deserialize_prepended_without_transform ... ok
[INFO] [stdout] test can_deserialize_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_screaming_snake_case ... ok
[INFO] [stdout] test can_serialize_snake_case ... ok
[INFO] [stderr]      Running tests/serialize.rs (/opt/rustwide/target/debug/deps/serialize-378a6465ab8a3d0c)
[INFO] [stdout] test can_serialize_kebab_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 9 tests
[INFO] [stdout] test can_serialize_lowercase ... ok
[INFO] [stdout] test can_serialize_prepended_without_transform ... ok
[INFO] [stdout] test can_serialize_prepended_snake_case ... ok
[INFO] [stdout] test can_serialize_screaming_kebab_case ... ok
[INFO] [stdout] test can_serialize_without_transform ... ok
[INFO] [stdout] test can_serialize_kebab_case ... ok
[INFO] [stdout] test can_serialize_screaming_snake_case ... ok
[INFO] [stdout] test can_serialize_uppercase ... ok
[INFO] [stdout] test can_serialize_snake_case ... 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] [stderr]      Running tests/util.rs (/opt/rustwide/target/debug/deps/util-85581bbdfbcfc2eb)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde-json-helpers
[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 0.83s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "41ce965cf08bc56010de99987a3cab37cd10f799b01c82c5572ddeda8f375405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41ce965cf08bc56010de99987a3cab37cd10f799b01c82c5572ddeda8f375405", kill_on_drop: false }`
[INFO] [stdout] 41ce965cf08bc56010de99987a3cab37cd10f799b01c82c5572ddeda8f375405