[INFO] cloning repository https://github.com/tyranron/rust-rtmp-mixing-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tyranron/rust-rtmp-mixing-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyranron%2Frust-rtmp-mixing-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyranron%2Frust-rtmp-mixing-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3535366623fe30a4d26d145006628d3e65b20387
[INFO] checking tyranron/rust-rtmp-mixing-poc against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyranron%2Frust-rtmp-mixing-poc" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tyranron/rust-rtmp-mixing-poc on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tyranron/rust-rtmp-mixing-poc
[INFO] finished tweaking git repo https://github.com/tyranron/rust-rtmp-mixing-poc
[INFO] tweaked toml for git repo https://github.com/tyranron/rust-rtmp-mixing-poc written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/tyranron/rust-rtmp-mixing-poc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 38539aae6cee85036f06639ab6d0e337e7dac5fbb1e08fe38fda9c7aac3bb2c9
[INFO] running `Command { std: "docker" "start" "-a" "38539aae6cee85036f06639ab6d0e337e7dac5fbb1e08fe38fda9c7aac3bb2c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38539aae6cee85036f06639ab6d0e337e7dac5fbb1e08fe38fda9c7aac3bb2c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38539aae6cee85036f06639ab6d0e337e7dac5fbb1e08fe38fda9c7aac3bb2c9", kill_on_drop: false }`
[INFO] [stdout] 38539aae6cee85036f06639ab6d0e337e7dac5fbb1e08fe38fda9c7aac3bb2c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "RUSTFLAGS=--cap-lints=forbid" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ae3b0f8c4601277e1839642c648efdab2e22bfbd7b5cffdaf2e5abddca7e0ca
[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" "8ae3b0f8c4601277e1839642c648efdab2e22bfbd7b5cffdaf2e5abddca7e0ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
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[INFO] [stderr]    Compiling phf_generator v0.7.24
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[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking eax v0.3.0 (https://github.com/RustCrypto/AEADs?rev=9a6dc685ae4f4f23c628cedab46480baf5ed475d#9a6dc685)
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[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking tokio-util v0.6.5
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[INFO] [stderr]    Compiling derive_utils v0.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling actix-macros v0.1.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling actix-web-codegen v0.4.0
[INFO] [stderr]    Compiling t4rust-derive v0.3.0
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]    Compiling futures-enum v0.1.17
[INFO] [stderr]    Compiling juniper_codegen v0.15.3
[INFO] [stderr]    Compiling actix_derive v0.5.0
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]    Compiling askama_derive v0.10.5
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.125/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=b975f837b6642205 -C extra-filename=-b975f837b6642205 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-32a461668e4c2f4b.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-5f2a98a903f1d830.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-0d3fd3f26ea87fd6.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid --cfg underscore_consts` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8ae3b0f8c4601277e1839642c648efdab2e22bfbd7b5cffdaf2e5abddca7e0ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ae3b0f8c4601277e1839642c648efdab2e22bfbd7b5cffdaf2e5abddca7e0ca", kill_on_drop: false }`
[INFO] [stdout] 8ae3b0f8c4601277e1839642c648efdab2e22bfbd7b5cffdaf2e5abddca7e0ca