[INFO] fetching crate devicemapper 0.29.1...
[INFO] checking devicemapper-0.29.1 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate devicemapper 0.29.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate devicemapper 0.29.1 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate devicemapper 0.29.1
[INFO] finished tweaking crates.io crate devicemapper 0.29.1
[INFO] tweaked toml for crates.io crate devicemapper 0.29.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libmount v0.1.15
[INFO] [stderr]   Downloaded loopdev v0.2.2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 444c1e4334f6702f455cd4e43d86f80d1e16248671352c2cd692c4b035aa6e12
[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" "444c1e4334f6702f455cd4e43d86f80d1e16248671352c2cd692c4b035aa6e12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "444c1e4334f6702f455cd4e43d86f80d1e16248671352c2cd692c4b035aa6e12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "444c1e4334f6702f455cd4e43d86f80d1e16248671352c2cd692c4b035aa6e12", kill_on_drop: false }`
[INFO] [stdout] 444c1e4334f6702f455cd4e43d86f80d1e16248671352c2cd692c4b035aa6e12
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b0995ead9553e27bceca0c4de9ea01bbde438f216085a47a23abf825b7402262
[INFO] running `Command { std: "docker" "start" "-a" "b0995ead9553e27bceca0c4de9ea01bbde438f216085a47a23abf825b7402262", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling shlex v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking backtrace v0.3.60
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking libmount v0.1.15
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]     Checking devicemapper v0.29.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling loopdev v0.2.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.70s
[INFO] running `Command { std: "docker" "inspect" "b0995ead9553e27bceca0c4de9ea01bbde438f216085a47a23abf825b7402262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0995ead9553e27bceca0c4de9ea01bbde438f216085a47a23abf825b7402262", kill_on_drop: false }`
[INFO] [stdout] b0995ead9553e27bceca0c4de9ea01bbde438f216085a47a23abf825b7402262