[INFO] cloning repository https://github.com/wellbehavedsoftware/btrfs-dedupe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wellbehavedsoftware/btrfs-dedupe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwellbehavedsoftware%2Fbtrfs-dedupe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwellbehavedsoftware%2Fbtrfs-dedupe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf8d1a82fee2ff8635d00865acc1033707957c9e
[INFO] checking wellbehavedsoftware/btrfs-dedupe against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwellbehavedsoftware%2Fbtrfs-dedupe" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wellbehavedsoftware/btrfs-dedupe on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wellbehavedsoftware/btrfs-dedupe
[INFO] finished tweaking git repo https://github.com/wellbehavedsoftware/btrfs-dedupe
[INFO] tweaked toml for git repo https://github.com/wellbehavedsoftware/btrfs-dedupe written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/wellbehavedsoftware/btrfs-dedupe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3127d9d8aef3a8ebe27313aecb518f679e3c2de97c612b6edbdabe698f48ec4
[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" "e3127d9d8aef3a8ebe27313aecb518f679e3c2de97c612b6edbdabe698f48ec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3127d9d8aef3a8ebe27313aecb518f679e3c2de97c612b6edbdabe698f48ec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3127d9d8aef3a8ebe27313aecb518f679e3c2de97c612b6edbdabe698f48ec4", kill_on_drop: false }`
[INFO] [stdout] e3127d9d8aef3a8ebe27313aecb518f679e3c2de97c612b6edbdabe698f48ec4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f57d6c68b6b50f71dfda8b6e72122d2ccb4118a724e21e6a5b7cf07e542a425b
[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" "f57d6c68b6b50f71dfda8b6e72122d2ccb4118a724e21e6a5b7cf07e542a425b", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking libc v0.2.18
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling typenum v1.5.1
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling quote v0.3.10
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking byte-tools v0.1.2
[INFO] [stderr]     Checking uuid v0.3.1
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking unicode-segmentation v1.0.1
[INFO] [stderr]     Checking serde v0.8.21
[INFO] [stderr]     Checking nodrop v0.1.8
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling syn v0.10.6
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking ioctl v0.3.3
[INFO] [stderr]     Checking termion v1.1.4
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]    Compiling term v0.4.4
[INFO] [stderr]     Checking clap v2.20.0
[INFO] [stderr]     Checking minilzo v0.1.0
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stdout] error: missing fragment specifier
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.20.0/src/macros.rs:621:41
[INFO] [stdout]     |
[INFO] [stdout] 621 |     (@arg ($arg:expr) $modes:tt !$ident $($tail:tt)*) => {
[INFO] [stdout]     |                                         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking output v0.4.1
[INFO] [stderr]     Checking generic-array v0.6.0
[INFO] [stderr]     Checking flate2 v0.2.14
[INFO] [stderr]     Checking digest v0.4.0
[INFO] [stderr]     Checking digest-buffer v0.2.0
[INFO] [stderr]     Checking sha2 v0.4.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stderr]     Checking btrfs v1.2.1
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `clap`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f57d6c68b6b50f71dfda8b6e72122d2ccb4118a724e21e6a5b7cf07e542a425b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f57d6c68b6b50f71dfda8b6e72122d2ccb4118a724e21e6a5b7cf07e542a425b", kill_on_drop: false }`
[INFO] [stdout] f57d6c68b6b50f71dfda8b6e72122d2ccb4118a724e21e6a5b7cf07e542a425b