[INFO] fetching crate persistent_rope 0.1.3...
[INFO] checking persistent_rope-0.1.3 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate persistent_rope 0.1.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate persistent_rope 0.1.3 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate persistent_rope 0.1.3
[INFO] finished tweaking crates.io crate persistent_rope 0.1.3
[INFO] tweaked toml for crates.io crate persistent_rope 0.1.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macro-attr v0.2.0
[INFO] [stderr]   Downloaded bytecount v0.5.1
[INFO] [stderr]   Downloaded ropey v1.2.0
[INFO] [stderr]   Downloaded xi-rope v0.3.0
[INFO] [stderr]   Downloaded an-rope v0.3.1
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", 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] 127f56b47fc1e0bf77cc7630b0a6c1f96bbe0f43da1963ca5d1f05f9fba04b59
[INFO] running `Command { std: "docker" "start" "-a" "127f56b47fc1e0bf77cc7630b0a6c1f96bbe0f43da1963ca5d1f05f9fba04b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "127f56b47fc1e0bf77cc7630b0a6c1f96bbe0f43da1963ca5d1f05f9fba04b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "127f56b47fc1e0bf77cc7630b0a6c1f96bbe0f43da1963ca5d1f05f9fba04b59", kill_on_drop: false }`
[INFO] [stdout] 127f56b47fc1e0bf77cc7630b0a6c1f96bbe0f43da1963ca5d1f05f9fba04b59
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93826d53eb9f66da42a144a107892cadbaf63c279f90735ed0004266fbfe4595
[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" "93826d53eb9f66da42a144a107892cadbaf63c279f90735ed0004266fbfe4595", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking bytecount v0.5.1
[INFO] [stderr]     Checking macro-attr v0.2.0
[INFO] [stderr]     Checking persistent_rope v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ropey v1.2.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking an-rope v0.3.1
[INFO] [stderr]     Checking xi-rope v0.3.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.84s
[INFO] running `Command { std: "docker" "inspect" "93826d53eb9f66da42a144a107892cadbaf63c279f90735ed0004266fbfe4595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93826d53eb9f66da42a144a107892cadbaf63c279f90735ed0004266fbfe4595", kill_on_drop: false }`
[INFO] [stdout] 93826d53eb9f66da42a144a107892cadbaf63c279f90735ed0004266fbfe4595