[INFO] cloning repository https://github.com/mprasil/dronelab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mprasil/dronelab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmprasil%2Fdronelab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmprasil%2Fdronelab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80269b85c7a71821a286da1a54648f4aa62244f4
[INFO] checking mprasil/dronelab against master#0c1fb2a1e65a57073dc62dd502319a00cf753371 for pr-114655
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmprasil%2Fdronelab" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mprasil/dronelab on toolchain 0c1fb2a1e65a57073dc62dd502319a00cf753371
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c1fb2a1e65a57073dc62dd502319a00cf753371" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mprasil/dronelab
[INFO] finished tweaking git repo https://github.com/mprasil/dronelab
[INFO] tweaked toml for git repo https://github.com/mprasil/dronelab written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mprasil/dronelab already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c1fb2a1e65a57073dc62dd502319a00cf753371" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking mprasil/dronelab against try#1d06cad56a6e74d21cdf272bd6d9479160000fba for pr-114655
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmprasil%2Fdronelab" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mprasil/dronelab on toolchain 1d06cad56a6e74d21cdf272bd6d9479160000fba
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1d06cad56a6e74d21cdf272bd6d9479160000fba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mprasil/dronelab
[INFO] finished tweaking git repo https://github.com/mprasil/dronelab
[INFO] tweaked toml for git repo https://github.com/mprasil/dronelab written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mprasil/dronelab already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1d06cad56a6e74d21cdf272bd6d9479160000fba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_yaml v0.8.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1d06cad56a6e74d21cdf272bd6d9479160000fba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85e346899bfc1b12f7d0cacc2c1520e4803a8559615f9fed048a6e7987d0a7b5
[INFO] running `Command { std: "docker" "start" "-a" "85e346899bfc1b12f7d0cacc2c1520e4803a8559615f9fed048a6e7987d0a7b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85e346899bfc1b12f7d0cacc2c1520e4803a8559615f9fed048a6e7987d0a7b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85e346899bfc1b12f7d0cacc2c1520e4803a8559615f9fed048a6e7987d0a7b5", kill_on_drop: false }`
[INFO] [stdout] 85e346899bfc1b12f7d0cacc2c1520e4803a8559615f9fed048a6e7987d0a7b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1d06cad56a6e74d21cdf272bd6d9479160000fba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35651d9c78684c28e22856df3ffe84d6d6a6615a25d2387d247ccf2f84cfe8eb
[INFO] running `Command { std: "docker" "start" "-a" "35651d9c78684c28e22856df3ffe84d6d6a6615a25d2387d247ccf2f84cfe8eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking yaml-rust v0.4.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.9
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]     Checking serde_yaml v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking dronelab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.39s
[INFO] running `Command { std: "docker" "inspect" "35651d9c78684c28e22856df3ffe84d6d6a6615a25d2387d247ccf2f84cfe8eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35651d9c78684c28e22856df3ffe84d6d6a6615a25d2387d247ccf2f84cfe8eb", kill_on_drop: false }`
[INFO] [stdout] 35651d9c78684c28e22856df3ffe84d6d6a6615a25d2387d247ccf2f84cfe8eb