[INFO] cloning repository https://github.com/bend-n/totally-sync-variable
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bend-n/totally-sync-variable" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbend-n%2Ftotally-sync-variable", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbend-n%2Ftotally-sync-variable'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e87d9e19ad6f8c8c727b66baa81a0a6cec22a66
[INFO] checking bend-n/totally-sync-variable against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbend-n%2Ftotally-sync-variable" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bend-n/totally-sync-variable on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bend-n/totally-sync-variable
[INFO] finished tweaking git repo https://github.com/bend-n/totally-sync-variable
[INFO] tweaked toml for git repo https://github.com/bend-n/totally-sync-variable written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bend-n/totally-sync-variable 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" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "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]      Locking 1 package to latest compatible version
[INFO] [stderr]     Updating totally-sync-variable v0.1.0 (/workspace/builds/worker-6-tc1/source) -> v0.1.1
[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 bend-n/totally-sync-variable against try#6a5749073f2ebf59d7740d30e50a932a85756ee7 for pr-127655
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbend-n%2Ftotally-sync-variable" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bend-n/totally-sync-variable on toolchain 6a5749073f2ebf59d7740d30e50a932a85756ee7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bend-n/totally-sync-variable
[INFO] finished tweaking git repo https://github.com/bend-n/totally-sync-variable
[INFO] tweaked toml for git repo https://github.com/bend-n/totally-sync-variable written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bend-n/totally-sync-variable 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" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking bend-n/totally-sync-variable against try#6a5749073f2ebf59d7740d30e50a932a85756ee7 for pr-127655
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbend-n%2Ftotally-sync-variable" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bend-n/totally-sync-variable on toolchain 6a5749073f2ebf59d7740d30e50a932a85756ee7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bend-n/totally-sync-variable
[INFO] finished tweaking git repo https://github.com/bend-n/totally-sync-variable
[INFO] tweaked toml for git repo https://github.com/bend-n/totally-sync-variable written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bend-n/totally-sync-variable 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" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "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]      Locking 1 package to latest compatible version
[INFO] [stderr]     Updating totally-sync-variable v0.1.0 (/workspace/builds/worker-6-tc2/source) -> v0.1.1
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f03842edc6aae6b1cc7980849ee293512dd2460cdb41fa9295fef5020797a2d
[INFO] running `Command { std: "docker" "start" "-a" "3f03842edc6aae6b1cc7980849ee293512dd2460cdb41fa9295fef5020797a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f03842edc6aae6b1cc7980849ee293512dd2460cdb41fa9295fef5020797a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f03842edc6aae6b1cc7980849ee293512dd2460cdb41fa9295fef5020797a2d", kill_on_drop: false }`
[INFO] [stdout] 3f03842edc6aae6b1cc7980849ee293512dd2460cdb41fa9295fef5020797a2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f8992505df54c65dfb5a76e9618e2f07b1deb67d6aaa16b424b2b6c9f6d4a97
[INFO] running `Command { std: "docker" "start" "-a" "0f8992505df54c65dfb5a76e9618e2f07b1deb67d6aaa16b424b2b6c9f6d4a97", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling serde_json v1.0.100
[INFO] [stderr]    Compiling paste v1.0.13
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking totally-sync-variable v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `Command { std: "docker" "inspect" "0f8992505df54c65dfb5a76e9618e2f07b1deb67d6aaa16b424b2b6c9f6d4a97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f8992505df54c65dfb5a76e9618e2f07b1deb67d6aaa16b424b2b6c9f6d4a97", kill_on_drop: false }`
[INFO] [stdout] 0f8992505df54c65dfb5a76e9618e2f07b1deb67d6aaa16b424b2b6c9f6d4a97