[INFO] fetching crate ck2json 0.1.0...
[INFO] checking ck2json-0.1.0 against beta for pr-78714
[INFO] extracting crate ck2json 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ck2json 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ck2json 0.1.0
[INFO] finished tweaking crates.io crate ck2json 0.1.0
[INFO] tweaked toml for crates.io crate ck2json 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate ck2json 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f88f2b4b0aac2432f0abd192bd9f7407354925d522f0253c06ae5a7110a82827
[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" "f88f2b4b0aac2432f0abd192bd9f7407354925d522f0253c06ae5a7110a82827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f88f2b4b0aac2432f0abd192bd9f7407354925d522f0253c06ae5a7110a82827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f88f2b4b0aac2432f0abd192bd9f7407354925d522f0253c06ae5a7110a82827", kill_on_drop: false }`
[INFO] [stdout] f88f2b4b0aac2432f0abd192bd9f7407354925d522f0253c06ae5a7110a82827
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7e8a814a412cbd96b820cd73a184c191fa8c06bad6962ae1fa8ecac5a8aeb0d
[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" "a7e8a814a412cbd96b820cd73a184c191fa8c06bad6962ae1fa8ecac5a8aeb0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling encoding_rs v0.8.17
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]     Checking encoding_rs_io v0.1.6
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking ck2json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.89s
[INFO] running `Command { std: "docker" "inspect" "a7e8a814a412cbd96b820cd73a184c191fa8c06bad6962ae1fa8ecac5a8aeb0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e8a814a412cbd96b820cd73a184c191fa8c06bad6962ae1fa8ecac5a8aeb0d", kill_on_drop: false }`
[INFO] [stdout] a7e8a814a412cbd96b820cd73a184c191fa8c06bad6962ae1fa8ecac5a8aeb0d