[INFO] fetching crate derive_builder 0.10.0-alpha...
[INFO] checking derive_builder-0.10.0-alpha against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate derive_builder 0.10.0-alpha into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate derive_builder 0.10.0-alpha on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate derive_builder 0.10.0-alpha
[INFO] finished tweaking crates.io crate derive_builder 0.10.0-alpha
[INFO] tweaked toml for crates.io crate derive_builder 0.10.0-alpha written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate derive_builder 0.10.0-alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a2bdef108e785687fdacf62050845c0fab72c90910955ac0934cfb715721333
[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" "4a2bdef108e785687fdacf62050845c0fab72c90910955ac0934cfb715721333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a2bdef108e785687fdacf62050845c0fab72c90910955ac0934cfb715721333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a2bdef108e785687fdacf62050845c0fab72c90910955ac0934cfb715721333", kill_on_drop: false }`
[INFO] [stdout] 4a2bdef108e785687fdacf62050845c0fab72c90910955ac0934cfb715721333
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6c37a39d425c8e2034469d0c39d98dd0876d90a5c1e4348940a1ffdbdaeb5a5
[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" "c6c37a39d425c8e2034469d0c39d98dd0876d90a5c1e4348940a1ffdbdaeb5a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.119
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling trybuild v1.0.38
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking quote v1.0.8
[INFO] [stderr]     Checking darling_core v0.12.0
[INFO] [stderr]    Compiling darling_macro v0.12.0
[INFO] [stderr]    Compiling darling v0.12.0
[INFO] [stderr]    Compiling derive_builder_core v0.10.0-alpha
[INFO] [stderr]    Compiling derive_builder_macro v0.10.0-alpha
[INFO] [stderr]     Checking derive_builder v0.10.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.30s
[INFO] running `Command { std: "docker" "inspect" "c6c37a39d425c8e2034469d0c39d98dd0876d90a5c1e4348940a1ffdbdaeb5a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6c37a39d425c8e2034469d0c39d98dd0876d90a5c1e4348940a1ffdbdaeb5a5", kill_on_drop: false }`
[INFO] [stdout] c6c37a39d425c8e2034469d0c39d98dd0876d90a5c1e4348940a1ffdbdaeb5a5