[INFO] fetching crate savefile 0.2.11...
[INFO] checking savefile-0.2.11 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate savefile 0.2.11 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate savefile 0.2.11 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate savefile 0.2.11
[INFO] finished tweaking crates.io crate savefile 0.2.11
[INFO] tweaked toml for crates.io crate savefile 0.2.11 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 681c1e436c868f3418a7824cbb0f6ae23629dd13bf594e23d90efd5629448d37
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "681c1e436c868f3418a7824cbb0f6ae23629dd13bf594e23d90efd5629448d37"`
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking savefile v0.2.11 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unknown lint: `unit_arg`
[INFO] [stderr]    --> src/lib.rs:601:9
[INFO] [stderr]     |
[INFO] [stderr] 601 | #[allow(unit_arg)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `new_without_default_derive`
[INFO] [stderr]     --> src/lib.rs:1582:9
[INFO] [stderr]      |
[INFO] [stderr] 1582 | #[allow(new_without_default_derive)] //You should never need to instantiate Removed yourself anyway.
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:539:21
[INFO] [stderr]     |
[INFO] [stderr] 539 |     writer: &'a mut Write,
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:548:21
[INFO] [stderr]     |
[INFO] [stderr] 548 |     reader: &'a mut Read,
[INFO] [stderr]     |                     ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:661:56
[INFO] [stderr]     |
[INFO] [stderr] 661 |     pub fn save<T:WithSchema + Serialize>(writer: &mut Write, version: u32, data: &T) -> Result<(),SavefileError> {
[INFO] [stderr]     |                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:666:65
[INFO] [stderr]     |
[INFO] [stderr] 666 |     pub fn save_noschema<T:WithSchema + Serialize>(writer: &mut Write, version: u32, data: &T) -> Result<(),SavefileError> {
[INFO] [stderr]     |                                                                 ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:669:57
[INFO] [stderr]     |
[INFO] [stderr] 669 |     fn save_impl<T:WithSchema + Serialize>(writer: &mut Write, version: u32, data: &T, with_schema: bool) -> Result<(),SavefileError> {
[INFO] [stderr]     |                                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:686:33
[INFO] [stderr]     |
[INFO] [stderr] 686 |     pub fn new_raw(writer: &mut Write) -> Serializer {
[INFO] [stderr]     |                                 ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:751:56
[INFO] [stderr]     |
[INFO] [stderr] 751 |     pub fn load<T:WithSchema+Deserialize>(reader: &mut Read, version: u32) -> Result<T,SavefileError> {
[INFO] [stderr]     |                                                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:757:65
[INFO] [stderr]     |
[INFO] [stderr] 757 |     pub fn load_noschema<T:WithSchema+Deserialize>(reader: &mut Read, version: u32) -> Result<T,SavefileError> {
[INFO] [stderr]     |                                                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:760:57
[INFO] [stderr]     |
[INFO] [stderr] 760 |     fn load_impl<T:WithSchema+Deserialize>(reader: &mut Read, version: u32, fetch_schema: bool) -> Result<T,SavefileError> {
[INFO] [stderr]     |                                                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:792:33
[INFO] [stderr]     |
[INFO] [stderr] 792 |     pub fn new_raw(reader: &mut Read) -> Deserializer {
[INFO] [stderr]     |                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:806:52
[INFO] [stderr]     |
[INFO] [stderr] 806 | pub fn load<T:WithSchema+Deserialize>(reader: &mut Read, version: u32) -> Result<T,SavefileError> {
[INFO] [stderr]     |                                                    ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:812:50
[INFO] [stderr]     |
[INFO] [stderr] 812 | pub fn save<T:WithSchema+Serialize>(writer: &mut Write, version: u32, data: &T) -> Result<(),SavefileError> {
[INFO] [stderr]     |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:818:61
[INFO] [stderr]     |
[INFO] [stderr] 818 | pub fn load_noschema<T:WithSchema+Deserialize>(reader: &mut Read, version: u32) -> Result<T,SavefileError> {
[INFO] [stderr]     |                                                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:831:59
[INFO] [stderr]     |
[INFO] [stderr] 831 | pub fn save_noschema<T:WithSchema+Serialize>(writer: &mut Write, version: u32, data: &T) -> Result<(),SavefileError> {
[INFO] [stderr]     |                                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(attr_literals)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `alloc` has been stable since 1.36.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(alloc)]
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling savefile-derive v0.2.12
[INFO] [stderr] warning: unknown lint: `unit_arg`
[INFO] [stderr]    --> src/lib.rs:601:9
[INFO] [stderr]     |
[INFO] [stderr] 601 | #[allow(unit_arg)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `new_without_default_derive`
[INFO] [stderr]     --> src/lib.rs:1582:9
[INFO] [stderr]      |
[INFO] [stderr] 1582 | #[allow(new_without_default_derive)] //You should never need to instantiate Removed yourself anyway.
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:539:21
[INFO] [stderr]     |
[INFO] [stderr] 539 |     writer: &'a mut Write,
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:548:21
[INFO] [stderr]     |
[INFO] [stderr] 548 |     reader: &'a mut Read,
[INFO] [stderr]     |                     ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:661:56
[INFO] [stderr]     |
[INFO] [stderr] 661 |     pub fn save<T:WithSchema + Serialize>(writer: &mut Write, version: u32, data: &T) -> Result<(),SavefileError> {
[INFO] [stderr]     |                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:666:65
[INFO] [stderr]     |
[INFO] [stderr] 666 |     pub fn save_noschema<T:WithSchema + Serialize>(writer: &mut Write, version: u32, data: &T) -> Result<(),SavefileError> {
[INFO] [stderr]     |                                                                 ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:669:57
[INFO] [stderr]     |
[INFO] [stderr] 669 |     fn save_impl<T:WithSchema + Serialize>(writer: &mut Write, version: u32, data: &T, with_schema: bool) -> Result<(),SavefileError> {
[INFO] [stderr]     |                                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:686:33
[INFO] [stderr]     |
[INFO] [stderr] 686 |     pub fn new_raw(writer: &mut Write) -> Serializer {
[INFO] [stderr]     |                                 ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:751:56
[INFO] [stderr]     |
[INFO] [stderr] 751 |     pub fn load<T:WithSchema+Deserialize>(reader: &mut Read, version: u32) -> Result<T,SavefileError> {
[INFO] [stderr]     |                                                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:757:65
[INFO] [stderr]     |
[INFO] [stderr] 757 |     pub fn load_noschema<T:WithSchema+Deserialize>(reader: &mut Read, version: u32) -> Result<T,SavefileError> {
[INFO] [stderr]     |                                                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:760:57
[INFO] [stderr]     |
[INFO] [stderr] 760 |     fn load_impl<T:WithSchema+Deserialize>(reader: &mut Read, version: u32, fetch_schema: bool) -> Result<T,SavefileError> {
[INFO] [stderr]     |                                                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:792:33
[INFO] [stderr]     |
[INFO] [stderr] 792 |     pub fn new_raw(reader: &mut Read) -> Deserializer {
[INFO] [stderr]     |                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:806:52
[INFO] [stderr]     |
[INFO] [stderr] 806 | pub fn load<T:WithSchema+Deserialize>(reader: &mut Read, version: u32) -> Result<T,SavefileError> {
[INFO] [stderr]     |                                                    ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:812:50
[INFO] [stderr]     |
[INFO] [stderr] 812 | pub fn save<T:WithSchema+Serialize>(writer: &mut Write, version: u32, data: &T) -> Result<(),SavefileError> {
[INFO] [stderr]     |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:818:61
[INFO] [stderr]     |
[INFO] [stderr] 818 | pub fn load_noschema<T:WithSchema+Deserialize>(reader: &mut Read, version: u32) -> Result<T,SavefileError> {
[INFO] [stderr]     |                                                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:831:59
[INFO] [stderr]     |
[INFO] [stderr] 831 | pub fn save_noschema<T:WithSchema+Serialize>(writer: &mut Write, version: u32, data: &T) -> Result<(),SavefileError> {
[INFO] [stderr]     |                                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(attr_literals)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `alloc` has been stable since 1.36.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(alloc)]
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.29s
[INFO] running `"docker" "inspect" "681c1e436c868f3418a7824cbb0f6ae23629dd13bf594e23d90efd5629448d37"`
[INFO] running `"docker" "rm" "-f" "681c1e436c868f3418a7824cbb0f6ae23629dd13bf594e23d90efd5629448d37"`
[INFO] [stdout] 681c1e436c868f3418a7824cbb0f6ae23629dd13bf594e23d90efd5629448d37