[INFO] cloning repository https://github.com/NervosFoundation/serde_bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NervosFoundation/serde_bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNervosFoundation%2Fserde_bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNervosFoundation%2Fserde_bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46ccd3beb136d086ef81f46f61baf57e2f92d6fc
[INFO] documenting NervosFoundation/serde_bench against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNervosFoundation%2Fserde_bench" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NervosFoundation/serde_bench on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain
[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-2/source/Cargo.toml
[INFO] crate git repo https://github.com/NervosFoundation/serde_bench already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e715619afe8fe74cf17aa78cde46c06f21f9e1f992419317a0e0da561d91ec5
[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" "1e715619afe8fe74cf17aa78cde46c06f21f9e1f992419317a0e0da561d91ec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e715619afe8fe74cf17aa78cde46c06f21f9e1f992419317a0e0da561d91ec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e715619afe8fe74cf17aa78cde46c06f21f9e1f992419317a0e0da561d91ec5", kill_on_drop: false }`
[INFO] [stdout] 1e715619afe8fe74cf17aa78cde46c06f21f9e1f992419317a0e0da561d91ec5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTDOCFLAGS=--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ebc072e941f0a7f6d7268a202a6223aa0adb7a3cb764223ea7184e874e43d99
[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" "1ebc072e941f0a7f6d7268a202a6223aa0adb7a3cb764223ea7184e874e43d99", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking rustc-hex v1.0.0
[INFO] [stderr]    Compiling protobuf v2.10.1
[INFO] [stderr]     Checking faster-hex v0.4.1
[INFO] [stderr]    Compiling uint v0.2.0 (https://github.com/nervosnetwork/primitives#dfb17048)
[INFO] [stderr]    Compiling bigint v0.2.3 (https://github.com/NervosFoundation/bigint#8ba1894c)
[INFO] [stderr]     Checking ethereum-types-serialize v0.2.1 (https://github.com/nervosnetwork/primitives#dfb17048)
[INFO] [stderr]     Checking flatbuffers v0.6.0
[INFO] [stderr]     Checking fixed-hash v0.2.1 (https://github.com/nervosnetwork/primitives#dfb17048)
[INFO] [stderr]     Checking molecule v0.5.0
[INFO] [stdout] error[E0428]: the name `impl_heapsize_for_hash` is defined multiple times
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/primitives-748f96ad4f0fe5be/dfb1704/fixed-hash/src/hash.rs:431:1
[INFO] [stdout]     |
[INFO] [stdout] 325 | macro_rules! impl_heapsize_for_hash {
[INFO] [stdout]     | ----------------------------------- previous definition of the macro `impl_heapsize_for_hash` here
[INFO] [stdout] ...
[INFO] [stdout] 431 | macro_rules! impl_heapsize_for_hash {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `impl_heapsize_for_hash` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `impl_heapsize_for_hash` must be defined only once in the macro namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0428`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fixed-hash`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1ebc072e941f0a7f6d7268a202a6223aa0adb7a3cb764223ea7184e874e43d99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ebc072e941f0a7f6d7268a202a6223aa0adb7a3cb764223ea7184e874e43d99", kill_on_drop: false }`
[INFO] [stdout] 1ebc072e941f0a7f6d7268a202a6223aa0adb7a3cb764223ea7184e874e43d99
