[INFO] fetching crate futures-signals-structs 0.2.0...
[INFO] checking futures-signals-structs-0.2.0 against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] extracting crate futures-signals-structs 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate futures-signals-structs 0.2.0 on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-signals-structs 0.2.0
[INFO] finished tweaking crates.io crate futures-signals-structs 0.2.0
[INFO] tweaked toml for crates.io crate futures-signals-structs 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--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 futures-signals-structs-derive v0.2.0
[INFO] [stderr]   Downloaded futures-signals-structs-traits v0.2.0
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d753c44fdba6bbea3674f91c2afb61db31a9734229f61db5596c22209552917d
[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" "d753c44fdba6bbea3674f91c2afb61db31a9734229f61db5596c22209552917d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d753c44fdba6bbea3674f91c2afb61db31a9734229f61db5596c22209552917d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d753c44fdba6bbea3674f91c2afb61db31a9734229f61db5596c22209552917d", kill_on_drop: false }`
[INFO] [stdout] d753c44fdba6bbea3674f91c2afb61db31a9734229f61db5596c22209552917d
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddb6efd4bcbda8983756b901fbd832b6cea8d76d6db1578769e37525b14d5ab3
[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" "ddb6efd4bcbda8983756b901fbd832b6cea8d76d6db1578769e37525b14d5ab3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling futures-signals-structs-derive v0.2.0
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking pin-project v1.0.6
[INFO] [stderr]     Checking futures-signals v0.3.18
[INFO] [stderr]     Checking futures-signals-structs-traits v0.2.0
[INFO] [stderr]     Checking futures-signals-structs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.10s
[INFO] running `Command { std: "docker" "inspect" "ddb6efd4bcbda8983756b901fbd832b6cea8d76d6db1578769e37525b14d5ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddb6efd4bcbda8983756b901fbd832b6cea8d76d6db1578769e37525b14d5ab3", kill_on_drop: false }`
[INFO] [stdout] ddb6efd4bcbda8983756b901fbd832b6cea8d76d6db1578769e37525b14d5ab3