[INFO] crate serde_transit 0.1.0 is already in cache [INFO] extracting crate serde_transit 0.1.0 into work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/serde_transit/0.1.0 [INFO] extracting crate serde_transit 0.1.0 into work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/serde_transit/0.1.0 [INFO] validating manifest of serde_transit-0.1.0 on toolchain master#a850a426491e14186af2250549bf41256b5938d2 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of serde_transit-0.1.0 on toolchain try#06a150c7d11500b41499224f165e9de1de096768 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing serde_transit-0.1.0 [INFO] finished frobbing serde_transit-0.1.0 [INFO] frobbed toml for serde_transit-0.1.0 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/serde_transit/0.1.0/Cargo.toml [INFO] started frobbing serde_transit-0.1.0 [INFO] finished frobbing serde_transit-0.1.0 [INFO] frobbed toml for serde_transit-0.1.0 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/serde_transit/0.1.0/Cargo.toml [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking serde_transit-0.1.0 against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-7/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/serde_transit/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 865e14ff5a9f4b748408e05f9171047d43a171689f258b76b325ba819118813d [INFO] running `"docker" "start" "-a" "865e14ff5a9f4b748408e05f9171047d43a171689f258b76b325ba819118813d"` [INFO] [stderr] Checking serde_transit v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/error.rs:79:13 [INFO] [stderr] | [INFO] [stderr] 79 | fn from(e: json::Error) -> Error { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:234:28 [INFO] [stderr] | [INFO] [stderr] 234 | fn serialize_seq(self, len: Option) -> Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:243:30 [INFO] [stderr] | [INFO] [stderr] 243 | fn serialize_tuple(self, len: usize) -> Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/ser.rs:250:31 [INFO] [stderr] | [INFO] [stderr] 250 | name: &'static str, [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_name` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:251:31 [INFO] [stderr] | [INFO] [stderr] 251 | len: usize) [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/ser.rs:260:32 [INFO] [stderr] | [INFO] [stderr] 260 | name: &'static str, [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_name` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `variant_index` [INFO] [stderr] --> src/ser.rs:261:32 [INFO] [stderr] | [INFO] [stderr] 261 | variant_index: u32, [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_variant_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `variant` [INFO] [stderr] --> src/ser.rs:262:32 [INFO] [stderr] | [INFO] [stderr] 262 | variant: &'static str, [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_variant` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:263:32 [INFO] [stderr] | [INFO] [stderr] 263 | len: usize) [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:269:28 [INFO] [stderr] | [INFO] [stderr] 269 | fn serialize_map(self, len: Option) -> Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/ser.rs:287:33 [INFO] [stderr] | [INFO] [stderr] 287 | name: &'static str, [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_name` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `variant_index` [INFO] [stderr] --> src/ser.rs:288:33 [INFO] [stderr] | [INFO] [stderr] 288 | variant_index: u32, [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_variant_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `variant` [INFO] [stderr] --> src/ser.rs:289:33 [INFO] [stderr] | [INFO] [stderr] 289 | variant: &'static str, [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_variant` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:290:33 [INFO] [stderr] | [INFO] [stderr] 290 | len: usize) [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:314:40 [INFO] [stderr] | [INFO] [stderr] 314 | fn serialize_element(&mut self, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:331:40 [INFO] [stderr] | [INFO] [stderr] 331 | fn serialize_element(&mut self, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:347:38 [INFO] [stderr] | [INFO] [stderr] 347 | fn serialize_field(&mut self, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:371:38 [INFO] [stderr] | [INFO] [stderr] 371 | fn serialize_field(&mut self, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/ser.rs:402:36 [INFO] [stderr] | [INFO] [stderr] 402 | fn serialize_key(&mut self, key: &T) -> Result<()> [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:411:38 [INFO] [stderr] | [INFO] [stderr] 411 | fn serialize_value(&mut self, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/ser.rs:448:38 [INFO] [stderr] | [INFO] [stderr] 448 | fn serialize_field(&mut self, key: &'static str, value: &T) -> Result<()> [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:448:57 [INFO] [stderr] | [INFO] [stderr] 448 | fn serialize_field(&mut self, key: &'static str, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: private trait `ser::Formatter` in public interface (error E0445) [INFO] [stderr] --> src/ser.rs:57:1 [INFO] [stderr] | [INFO] [stderr] 57 | / impl<'a, W, F> ser::Serializer for &'a mut Serializer [INFO] [stderr] 58 | | where W: io::Write, [INFO] [stderr] 59 | | F: Formatter [INFO] [stderr] 60 | | { [INFO] [stderr] ... | [INFO] [stderr] 293 | | } [INFO] [stderr] 294 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(private_in_public)] on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #34537 [INFO] [stderr] [INFO] [stderr] warning: private trait `ser::Formatter` in public interface (error E0445) [INFO] [stderr] --> src/ser.rs:424:1 [INFO] [stderr] | [INFO] [stderr] 424 | / impl<'a, W, F> ser::SerializeStruct for Compound<'a, W, F> [INFO] [stderr] 425 | | where W: io::Write, [INFO] [stderr] 426 | | F: Formatter [INFO] [stderr] 427 | | { [INFO] [stderr] ... | [INFO] [stderr] 439 | | } [INFO] [stderr] 440 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #34537 [INFO] [stderr] [INFO] [stderr] warning: function is never used: `to_pretty_writer` [INFO] [stderr] --> src/ser.rs:48:1 [INFO] [stderr] | [INFO] [stderr] 48 | / pub fn to_pretty_writer(writer: W, value: &T) -> Result<()> [INFO] [stderr] 49 | | where W: io::Write, [INFO] [stderr] 50 | | T: ser::Serialize [INFO] [stderr] 51 | | { [INFO] [stderr] ... | [INFO] [stderr] 54 | | Ok(()) [INFO] [stderr] 55 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/error.rs:79:13 [INFO] [stderr] | [INFO] [stderr] 79 | fn from(e: json::Error) -> Error { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:234:28 [INFO] [stderr] | [INFO] [stderr] 234 | fn serialize_seq(self, len: Option) -> Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:243:30 [INFO] [stderr] | [INFO] [stderr] 243 | fn serialize_tuple(self, len: usize) -> Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/ser.rs:250:31 [INFO] [stderr] | [INFO] [stderr] 250 | name: &'static str, [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_name` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:251:31 [INFO] [stderr] | [INFO] [stderr] 251 | len: usize) [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/ser.rs:260:32 [INFO] [stderr] | [INFO] [stderr] 260 | name: &'static str, [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_name` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `variant_index` [INFO] [stderr] --> src/ser.rs:261:32 [INFO] [stderr] | [INFO] [stderr] 261 | variant_index: u32, [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_variant_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `variant` [INFO] [stderr] --> src/ser.rs:262:32 [INFO] [stderr] | [INFO] [stderr] 262 | variant: &'static str, [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_variant` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:263:32 [INFO] [stderr] | [INFO] [stderr] 263 | len: usize) [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:269:28 [INFO] [stderr] | [INFO] [stderr] 269 | fn serialize_map(self, len: Option) -> Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/ser.rs:287:33 [INFO] [stderr] | [INFO] [stderr] 287 | name: &'static str, [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_name` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `variant_index` [INFO] [stderr] --> src/ser.rs:288:33 [INFO] [stderr] | [INFO] [stderr] 288 | variant_index: u32, [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_variant_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `variant` [INFO] [stderr] --> src/ser.rs:289:33 [INFO] [stderr] | [INFO] [stderr] 289 | variant: &'static str, [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_variant` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/ser.rs:290:33 [INFO] [stderr] | [INFO] [stderr] 290 | len: usize) [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:314:40 [INFO] [stderr] | [INFO] [stderr] 314 | fn serialize_element(&mut self, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:331:40 [INFO] [stderr] | [INFO] [stderr] 331 | fn serialize_element(&mut self, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:347:38 [INFO] [stderr] | [INFO] [stderr] 347 | fn serialize_field(&mut self, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:371:38 [INFO] [stderr] | [INFO] [stderr] 371 | fn serialize_field(&mut self, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/ser.rs:402:36 [INFO] [stderr] | [INFO] [stderr] 402 | fn serialize_key(&mut self, key: &T) -> Result<()> [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:411:38 [INFO] [stderr] | [INFO] [stderr] 411 | fn serialize_value(&mut self, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/ser.rs:448:38 [INFO] [stderr] | [INFO] [stderr] 448 | fn serialize_field(&mut self, key: &'static str, value: &T) -> Result<()> [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/ser.rs:448:57 [INFO] [stderr] | [INFO] [stderr] 448 | fn serialize_field(&mut self, key: &'static str, value: &T) -> Result<()> [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: private trait `ser::Formatter` in public interface (error E0445) [INFO] [stderr] --> src/ser.rs:57:1 [INFO] [stderr] | [INFO] [stderr] 57 | / impl<'a, W, F> ser::Serializer for &'a mut Serializer [INFO] [stderr] 58 | | where W: io::Write, [INFO] [stderr] 59 | | F: Formatter [INFO] [stderr] 60 | | { [INFO] [stderr] ... | [INFO] [stderr] 293 | | } [INFO] [stderr] 294 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(private_in_public)] on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #34537 [INFO] [stderr] [INFO] [stderr] warning: private trait `ser::Formatter` in public interface (error E0445) [INFO] [stderr] --> src/ser.rs:424:1 [INFO] [stderr] | [INFO] [stderr] 424 | / impl<'a, W, F> ser::SerializeStruct for Compound<'a, W, F> [INFO] [stderr] 425 | | where W: io::Write, [INFO] [stderr] 426 | | F: Formatter [INFO] [stderr] 427 | | { [INFO] [stderr] ... | [INFO] [stderr] 439 | | } [INFO] [stderr] 440 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #34537 [INFO] [stderr] [INFO] [stderr] warning: function is never used: `to_pretty_writer` [INFO] [stderr] --> src/ser.rs:48:1 [INFO] [stderr] | [INFO] [stderr] 48 | / pub fn to_pretty_writer(writer: W, value: &T) -> Result<()> [INFO] [stderr] 49 | | where W: io::Write, [INFO] [stderr] 50 | | T: ser::Serialize [INFO] [stderr] 51 | | { [INFO] [stderr] ... | [INFO] [stderr] 54 | | Ok(()) [INFO] [stderr] 55 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/ser.rs:470:5 [INFO] [stderr] | [INFO] [stderr] 470 | to_writer(&mut writer, &test); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.15s [INFO] running `"docker" "inspect" "865e14ff5a9f4b748408e05f9171047d43a171689f258b76b325ba819118813d"` [INFO] running `"docker" "rm" "-f" "865e14ff5a9f4b748408e05f9171047d43a171689f258b76b325ba819118813d"` [INFO] [stdout] 865e14ff5a9f4b748408e05f9171047d43a171689f258b76b325ba819118813d