[INFO] fetching crate impl-serde 0.2.1...
[INFO] checking impl-serde-0.2.1 against try#38f08371587f97c145dedb2c055ac7b01bf1e788 for pr-65294
[INFO] extracting crate impl-serde 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate impl-serde 0.2.1 on toolchain 38f08371587f97c145dedb2c055ac7b01bf1e788
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate impl-serde 0.2.1
[INFO] finished tweaking crates.io crate impl-serde 0.2.1
[INFO] tweaked toml for crates.io crate impl-serde 0.2.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 39083c245cd3b39457ee8533b9e4dd4d67875822c4493a7312272dd47722d179
[INFO] running `"docker" "start" "-a" "39083c245cd3b39457ee8533b9e4dd4d67875822c4493a7312272dd47722d179"`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking rustc-hex v2.0.1
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking impl-serde v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking uint v0.8.1
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> benches/impl_serde.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / construct_uint! {
[INFO] [stderr] 24 | |     pub struct U256(4);
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> benches/impl_serde.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / construct_uint! {
[INFO] [stderr] 24 | |     pub struct U256(4);
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.33s
[INFO] running `"docker" "inspect" "39083c245cd3b39457ee8533b9e4dd4d67875822c4493a7312272dd47722d179"`
[INFO] running `"docker" "rm" "-f" "39083c245cd3b39457ee8533b9e4dd4d67875822c4493a7312272dd47722d179"`
[INFO] [stdout] 39083c245cd3b39457ee8533b9e4dd4d67875822c4493a7312272dd47722d179