[INFO] fetching crate nu_plugin_start 0.17.0...
[INFO] checking nu_plugin_start-0.17.0 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate nu_plugin_start 0.17.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate nu_plugin_start 0.17.0 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nu_plugin_start 0.17.0
[INFO] finished tweaking crates.io crate nu_plugin_start 0.17.0
[INFO] tweaked toml for crates.io crate nu_plugin_start 0.17.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate nu_plugin_start 0.17.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afedf56f33fb4b46681dc624ddc5f959d25c23ac618a2c499af595b236fa07e3
[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" "afedf56f33fb4b46681dc624ddc5f959d25c23ac618a2c499af595b236fa07e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afedf56f33fb4b46681dc624ddc5f959d25c23ac618a2c499af595b236fa07e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afedf56f33fb4b46681dc624ddc5f959d25c23ac618a2c499af595b236fa07e3", kill_on_drop: false }`
[INFO] [stdout] afedf56f33fb4b46681dc624ddc5f959d25c23ac618a2c499af595b236fa07e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41ce6e467e29a228607cc6e18b0b458f9ebcee97c01089070d47ab08d1562c36
[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" "41ce6e467e29a228607cc6e18b0b458f9ebcee97c01089070d47ab08d1562c36", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]     Checking open v1.4.0
[INFO] [stderr]    Compiling pretty v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling codespan-reporting v0.9.5
[INFO] [stderr]    Compiling serde_yaml v0.8.13
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling nu-build v0.17.0
[INFO] [stderr]    Compiling nu-source v0.17.0
[INFO] [stderr]    Compiling nu-errors v0.17.0
[INFO] [stderr]    Compiling nu-protocol v0.17.0
[INFO] [stderr]    Compiling nu-value-ext v0.17.0
[INFO] [stderr]    Compiling nu-plugin v0.17.0
[INFO] [stderr] error: failed to run custom build command for `nu-plugin v0.17.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/nu-plugin-28d557990acd11f4/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Error("EOF while parsing a value", line: 1, column: 0)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "41ce6e467e29a228607cc6e18b0b458f9ebcee97c01089070d47ab08d1562c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41ce6e467e29a228607cc6e18b0b458f9ebcee97c01089070d47ab08d1562c36", kill_on_drop: false }`
[INFO] [stdout] 41ce6e467e29a228607cc6e18b0b458f9ebcee97c01089070d47ab08d1562c36