[INFO] fetching crate slog-mozlog-json 0.1.0...
[INFO] checking slog-mozlog-json-0.1.0 against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] extracting crate slog-mozlog-json 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate slog-mozlog-json 0.1.0 on toolchain 1c5262aa6c045a581fb974488793f09ed51fc498
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-mozlog-json 0.1.0
[INFO] finished tweaking crates.io crate slog-mozlog-json 0.1.0
[INFO] tweaked toml for crates.io crate slog-mozlog-json 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da7842270a62abbb321a8ff1729ca9d1ae810b4527ff3d9a0ab76e6da2184d02
[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" "da7842270a62abbb321a8ff1729ca9d1ae810b4527ff3d9a0ab76e6da2184d02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da7842270a62abbb321a8ff1729ca9d1ae810b4527ff3d9a0ab76e6da2184d02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7842270a62abbb321a8ff1729ca9d1ae810b4527ff3d9a0ab76e6da2184d02", kill_on_drop: false }`
[INFO] [stdout] da7842270a62abbb321a8ff1729ca9d1ae810b4527ff3d9a0ab76e6da2184d02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "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] bef7c1274a0e0b925772dd7c03e836c6080e5e8b5f335f4235dba5f7f7989139
[INFO] running `Command { std: "docker" "start" "-a" "bef7c1274a0e0b925772dd7c03e836c6080e5e8b5f335f4235dba5f7f7989139", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking slog-mozlog-json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.03s
[INFO] running `Command { std: "docker" "inspect" "bef7c1274a0e0b925772dd7c03e836c6080e5e8b5f335f4235dba5f7f7989139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bef7c1274a0e0b925772dd7c03e836c6080e5e8b5f335f4235dba5f7f7989139", kill_on_drop: false }`
[INFO] [stdout] bef7c1274a0e0b925772dd7c03e836c6080e5e8b5f335f4235dba5f7f7989139