[INFO] cloning repository https://github.com/vi/fusenbd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vi/fusenbd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvi%2Ffusenbd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvi%2Ffusenbd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9d7a1c2e3f85bfb43c06c456a775350d5876995
[INFO] checking vi/fusenbd against try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvi%2Ffusenbd" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vi/fusenbd on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vi/fusenbd
[INFO] finished tweaking git repo https://github.com/vi/fusenbd
[INFO] tweaked toml for git repo https://github.com/vi/fusenbd written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/vi/fusenbd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.43
[INFO] [stderr]   Downloaded cfg-if v0.1.5
[INFO] [stderr]   Downloaded log v0.4.4
[INFO] [stderr]   Downloaded byteorder v1.2.4
[INFO] [stderr]   Downloaded structopt-derive v0.2.10
[INFO] [stderr]   Downloaded pkg-config v0.3.13
[INFO] [stderr]   Downloaded quote v0.6.6
[INFO] [stderr]   Downloaded nbd v0.2.1
[INFO] [stderr]   Downloaded syn v0.14.8
[INFO] [stderr]   Downloaded proc-macro2 v0.4.13
[INFO] [stderr]   Downloaded structopt v0.2.10
[INFO] [stderr]   Downloaded winapi v0.3.5
[INFO] [stderr]   Downloaded readwriteseekfs v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7dbc37841bd4c6980b7a500e6a98c0b26bafc7912dced1c80a5fdcb5c8d1bafd
[INFO] running `Command { std: "docker" "start" "-a" "7dbc37841bd4c6980b7a500e6a98c0b26bafc7912dced1c80a5fdcb5c8d1bafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dbc37841bd4c6980b7a500e6a98c0b26bafc7912dced1c80a5fdcb5c8d1bafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dbc37841bd4c6980b7a500e6a98c0b26bafc7912dced1c80a5fdcb5c8d1bafd", kill_on_drop: false }`
[INFO] [stdout] 7dbc37841bd4c6980b7a500e6a98c0b26bafc7912dced1c80a5fdcb5c8d1bafd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f15b9c084a66b83805e5dceff3e8b4443d5053559df34706413dbc660cfd6dcf
[INFO] running `Command { std: "docker" "start" "-a" "f15b9c084a66b83805e5dceff3e8b4443d5053559df34706413dbc660cfd6dcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.13
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]     Checking bufstream v0.1.3
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking log v0.4.4
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking nbd v0.2.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]     Checking readwriteseekfs v0.1.0
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking fusenbd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.53s
[INFO] running `Command { std: "docker" "inspect" "f15b9c084a66b83805e5dceff3e8b4443d5053559df34706413dbc660cfd6dcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f15b9c084a66b83805e5dceff3e8b4443d5053559df34706413dbc660cfd6dcf", kill_on_drop: false }`
[INFO] [stdout] f15b9c084a66b83805e5dceff3e8b4443d5053559df34706413dbc660cfd6dcf