[INFO] cloning repository https://github.com/michaelb/rust-jupyter-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michaelb/rust-jupyter-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelb%2Frust-jupyter-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelb%2Frust-jupyter-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e9c939df3fbe99e81bd8a4e4161e5f5fbfa1bcd
[INFO] testing michaelb/rust-jupyter-client against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelb%2Frust-jupyter-client" "/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/michaelb/rust-jupyter-client on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/michaelb/rust-jupyter-client
[INFO] finished tweaking git repo https://github.com/michaelb/rust-jupyter-client
[INFO] tweaked toml for git repo https://github.com/michaelb/rust-jupyter-client written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/michaelb/rust-jupyter-client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hmac v0.7.0
[INFO] [stderr]   Downloaded block-padding v0.1.2
[INFO] [stderr]   Downloaded opaque-debug v0.2.1
[INFO] [stderr]   Downloaded byte-tools v0.3.0
[INFO] [stderr]   Downloaded structopt v0.2.13
[INFO] [stderr]   Downloaded structopt-derive v0.2.13
[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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a08068528bda664a39302d35277588be07aba6386ef9c16c4562db4469829f6
[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" "3a08068528bda664a39302d35277588be07aba6386ef9c16c4562db4469829f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a08068528bda664a39302d35277588be07aba6386ef9c16c4562db4469829f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a08068528bda664a39302d35277588be07aba6386ef9c16c4562db4469829f6", kill_on_drop: false }`
[INFO] [stdout] 3a08068528bda664a39302d35277588be07aba6386ef9c16c4562db4469829f6
[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" "RUSTFLAGS=--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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", 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] d9378129a0d707e9d99fbe88f015331edd33f2b11e8b25ec8e63e1b88b571de2
[INFO] running `Command { std: "docker" "start" "-a" "d9378129a0d707e9d99fbe88f015331edd33f2b11e8b25ec8e63e1b88b571de2", kill_on_drop: false }`
[INFO] [stderr]    Compiling byte-tools v0.3.0
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling opaque-debug v0.2.1
[INFO] [stderr]    Compiling dirs v1.0.4
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]    Compiling block-padding v0.1.2
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]    Compiling zmq-sys v0.8.2
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling zmq v0.8.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling jupyter-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.45s
[INFO] running `Command { std: "docker" "inspect" "d9378129a0d707e9d99fbe88f015331edd33f2b11e8b25ec8e63e1b88b571de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9378129a0d707e9d99fbe88f015331edd33f2b11e8b25ec8e63e1b88b571de2", kill_on_drop: false }`
[INFO] [stdout] d9378129a0d707e9d99fbe88f015331edd33f2b11e8b25ec8e63e1b88b571de2
[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" "RUSTFLAGS=--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" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63fa47bd64acf54baa43495ed090e5cc7ab4998dbae23f4b18dd70813082fbcb
[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" "63fa47bd64acf54baa43495ed090e5cc7ab4998dbae23f4b18dd70813082fbcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling structopt-derive v0.2.13
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling structopt v0.2.13
[INFO] [stderr]    Compiling jupyter-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `json` is imported redundantly
[INFO] [stdout]    --> src/wire.rs:296:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |     use serde_json::json;
[INFO] [stdout]     |         ---------------- the item `json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 296 |         use serde_json::json;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jupyter-client`; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name jupyter_client --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=22c2b69014b51a9b -C extra-filename=-22c2b69014b51a9b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-797455f53d5bdd66.rlib --extern crypto_mac=/opt/rustwide/target/debug/deps/libcrypto_mac-89aba340fd41a5a1.rlib --extern digest=/opt/rustwide/target/debug/deps/libdigest-7b02871eee9ffaa2.rlib --extern dirs=/opt/rustwide/target/debug/deps/libdirs-72ffb4f5869c0341.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-7d8ca9aa9ed2dc37.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-99c19fb3fd0c2f0c.rlib --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-b2149d21b1026cbc.rlib --extern glob=/opt/rustwide/target/debug/deps/libglob-6b3ec1fdf9608ed2.rlib --extern hex=/opt/rustwide/target/debug/deps/libhex-2a57dcee5a56fc4c.rlib --extern hmac=/opt/rustwide/target/debug/deps/libhmac-32d60888e1bf031f.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-d40525fac0d343a5.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-b219fb1ef7afb65c.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-1357584657e3d3ac.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-107f44c75f2bcc5e.rlib --extern sha2=/opt/rustwide/target/debug/deps/libsha2-0e80fe686a769f0c.rlib --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-640c25ea027917be.rlib --extern uuid=/opt/rustwide/target/debug/deps/libuuid-ebab93bbd4144ab5.rlib --extern zmq=/opt/rustwide/target/debug/deps/libzmq-d9dd79f8196a042b.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/backtrace-sys-3fe6784275c20f6f/out -L native=/usr/lib/x86_64-linux-gnu` (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" "63fa47bd64acf54baa43495ed090e5cc7ab4998dbae23f4b18dd70813082fbcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63fa47bd64acf54baa43495ed090e5cc7ab4998dbae23f4b18dd70813082fbcb", kill_on_drop: false }`
[INFO] [stdout] 63fa47bd64acf54baa43495ed090e5cc7ab4998dbae23f4b18dd70813082fbcb
