[INFO] fetching crate cjson 0.1.1...
[INFO] checking cjson-0.1.1 against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] extracting crate cjson 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate cjson 0.1.1 on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cjson 0.1.1
[INFO] finished tweaking crates.io crate cjson 0.1.1
[INFO] tweaked toml for crates.io crate cjson 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate cjson 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4432c6a5d21481c49f933f8e5a55447c4e43af7d0bbc41c174f2a6f3a80242b8
[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" "4432c6a5d21481c49f933f8e5a55447c4e43af7d0bbc41c174f2a6f3a80242b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4432c6a5d21481c49f933f8e5a55447c4e43af7d0bbc41c174f2a6f3a80242b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4432c6a5d21481c49f933f8e5a55447c4e43af7d0bbc41c174f2a6f3a80242b8", kill_on_drop: false }`
[INFO] [stdout] 4432c6a5d21481c49f933f8e5a55447c4e43af7d0bbc41c174f2a6f3a80242b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06a515c6e9e52ae5e07ad94fd83dc9d3006d8f74e20442ea9dc89f4fd4202c2d
[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" "06a515c6e9e52ae5e07ad94fd83dc9d3006d8f74e20442ea9dc89f4fd4202c2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking cjson v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.20s
[INFO] running `Command { std: "docker" "inspect" "06a515c6e9e52ae5e07ad94fd83dc9d3006d8f74e20442ea9dc89f4fd4202c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06a515c6e9e52ae5e07ad94fd83dc9d3006d8f74e20442ea9dc89f4fd4202c2d", kill_on_drop: false }`
[INFO] [stdout] 06a515c6e9e52ae5e07ad94fd83dc9d3006d8f74e20442ea9dc89f4fd4202c2d