[INFO] updating cached repository https://github.com/NervosFoundation/serde_bench
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 121ba4c0d8f51840543c7f98fac5e7e858d2973c
[INFO] checking NervosFoundation/serde_bench against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNervosFoundation%2Fserde_bench" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NervosFoundation/serde_bench on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/NervosFoundation/serde_bench
[INFO] finished tweaking git repo https://github.com/NervosFoundation/serde_bench
[INFO] tweaked toml for git repo https://github.com/NervosFoundation/serde_bench written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/NervosFoundation/serde_bench already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "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] a6fa3327fb5f2979d8288db52c21b054fc19ff3b0612848ea639f9904a11f57e
[INFO] running `"docker" "start" "-a" "a6fa3327fb5f2979d8288db52c21b054fc19ff3b0612848ea639f9904a11f57e"`
[INFO] [stderr]    Compiling crunchy v0.2.1
[INFO] [stderr]    Compiling protobuf v2.1.1
[INFO] [stderr]     Checking same-file v1.0.3
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking ethereum-types-serialize v0.2.1
[INFO] [stderr]    Compiling uint v0.2.0 (https://github.com/NervosFoundation/primitives#dfb17048)
[INFO] [stderr]    Compiling bigint v0.2.3 (https://github.com/NervosFoundation/bigint#604d7695)
[INFO] [stderr]     Checking ethereum-types-serialize v0.2.1 (https://github.com/NervosFoundation/primitives#dfb17048)
[INFO] [stderr]     Checking fixed-hash v0.2.1 (https://github.com/NervosFoundation/primitives#dfb17048)
[INFO] [stderr]     Checking criterion-plot v0.2.5
[INFO] [stderr]     Checking uint v0.4.1
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]    Compiling syn v0.15.9
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]     Checking criterion-stats v0.2.5
[INFO] [stderr] error: a macro named `impl_heapsize_for_hash` has already been exported
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/primitives-a99801f41be25a23/dfb1704/fixed-hash/src/hash.rs:431:1
[INFO] [stderr]     |
[INFO] [stderr] 431 | / macro_rules! impl_heapsize_for_hash {
[INFO] [stderr] 432 | |     ($name: ident) => {
[INFO] [stderr] 433 | |         impl $crate::heapsize::HeapSizeOf for $name {
[INFO] [stderr] 434 | |             fn heap_size_of_children(&self) -> usize {
[INFO] [stderr] ...   |
[INFO] [stderr] 438 | |     }
[INFO] [stderr] 439 | | }
[INFO] [stderr]     | |_^ `impl_heapsize_for_hash` already exported
[INFO] [stderr]     |
[INFO] [stderr] note: previous macro export is now shadowed
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/primitives-a99801f41be25a23/dfb1704/fixed-hash/src/hash.rs:325:1
[INFO] [stderr]     |
[INFO] [stderr] 325 | / macro_rules! impl_heapsize_for_hash {
[INFO] [stderr] 326 | |     ($name: ident) => {
[INFO] [stderr] 327 | |         impl $crate::heapsize::HeapSizeOf for $name {
[INFO] [stderr] 328 | |             fn heap_size_of_children(&self) -> usize {
[INFO] [stderr] ...   |
[INFO] [stderr] 332 | |     }
[INFO] [stderr] 333 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `fixed-hash`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a6fa3327fb5f2979d8288db52c21b054fc19ff3b0612848ea639f9904a11f57e"`
[INFO] running `"docker" "rm" "-f" "a6fa3327fb5f2979d8288db52c21b054fc19ff3b0612848ea639f9904a11f57e"`
[INFO] [stdout] a6fa3327fb5f2979d8288db52c21b054fc19ff3b0612848ea639f9904a11f57e