[INFO] fetching crate boxext 0.1.6...
[INFO] checking boxext-0.1.6 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate boxext 0.1.6 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate boxext 0.1.6 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 boxext 0.1.6
[INFO] finished tweaking crates.io crate boxext 0.1.6
[INFO] tweaked toml for crates.io crate boxext 0.1.6 written to /workspace/builds/worker-5/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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 0dc9db0dd8190520b5f0768d2465c1880d21c7370d6037f66e5c5fd457f77072
[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" "0dc9db0dd8190520b5f0768d2465c1880d21c7370d6037f66e5c5fd457f77072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dc9db0dd8190520b5f0768d2465c1880d21c7370d6037f66e5c5fd457f77072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dc9db0dd8190520b5f0768d2465c1880d21c7370d6037f66e5c5fd457f77072", kill_on_drop: false }`
[INFO] [stdout] 0dc9db0dd8190520b5f0768d2465c1880d21c7370d6037f66e5c5fd457f77072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d1a9c1132f4ba4f54be248c6ca7c054dec7b04bbc024b3f0f919feb9d5578da1
[INFO] running `Command { std: "docker" "start" "-a" "d1a9c1132f4ba4f54be248c6ca7c054dec7b04bbc024b3f0f919feb9d5578da1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking boxext v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling boxext_derive v0.1.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.69s
[INFO] running `Command { std: "docker" "inspect" "d1a9c1132f4ba4f54be248c6ca7c054dec7b04bbc024b3f0f919feb9d5578da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1a9c1132f4ba4f54be248c6ca7c054dec7b04bbc024b3f0f919feb9d5578da1", kill_on_drop: false }`
[INFO] [stdout] d1a9c1132f4ba4f54be248c6ca7c054dec7b04bbc024b3f0f919feb9d5578da1