[INFO] fetching crate rbn 0.1.4...
[INFO] checking rbn-0.1.4 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate rbn 0.1.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rbn 0.1.4 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rbn 0.1.4
[INFO] finished tweaking crates.io crate rbn 0.1.4
[INFO] tweaked toml for crates.io crate rbn 0.1.4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate rbn 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6f45241d63598b20f0b86025d8ab0b4ae53010bf8572ee42015297fa8fc13fa
[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" "d6f45241d63598b20f0b86025d8ab0b4ae53010bf8572ee42015297fa8fc13fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6f45241d63598b20f0b86025d8ab0b4ae53010bf8572ee42015297fa8fc13fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6f45241d63598b20f0b86025d8ab0b4ae53010bf8572ee42015297fa8fc13fa", kill_on_drop: false }`
[INFO] [stdout] d6f45241d63598b20f0b86025d8ab0b4ae53010bf8572ee42015297fa8fc13fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d0f78ead3c6c12531335d40e870e98b602aa0be7b20bf699b97004d9d4da41a
[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" "8d0f78ead3c6c12531335d40e870e98b602aa0be7b20bf699b97004d9d4da41a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking regex-syntax v0.6.24
[INFO] [stderr]     Checking hambands v0.1.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]     Checking pad v0.1.6
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking regex v1.5.2
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking ctrlc v3.1.9
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking rbn-lib v0.1.4
[INFO] [stderr]     Checking rbn v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.26s
[INFO] running `Command { std: "docker" "inspect" "8d0f78ead3c6c12531335d40e870e98b602aa0be7b20bf699b97004d9d4da41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d0f78ead3c6c12531335d40e870e98b602aa0be7b20bf699b97004d9d4da41a", kill_on_drop: false }`
[INFO] [stdout] 8d0f78ead3c6c12531335d40e870e98b602aa0be7b20bf699b97004d9d4da41a