[INFO] fetching crate itchy 0.2.1...
[INFO] checking itchy-0.2.1 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate itchy 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate itchy 0.2.1 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate itchy 0.2.1
[INFO] finished tweaking crates.io crate itchy 0.2.1
[INFO] tweaked toml for crates.io crate itchy 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded decimal v2.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 640d7c1391de4dabd7aed831b565c795b7f25dc081022b53fe9461ad3ba2aabc
[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" "640d7c1391de4dabd7aed831b565c795b7f25dc081022b53fe9461ad3ba2aabc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "640d7c1391de4dabd7aed831b565c795b7f25dc081022b53fe9461ad3ba2aabc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "640d7c1391de4dabd7aed831b565c795b7f25dc081022b53fe9461ad3ba2aabc", kill_on_drop: false }`
[INFO] [stdout] 640d7c1391de4dabd7aed831b565c795b7f25dc081022b53fe9461ad3ba2aabc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9d7a4e0a910397c35b6a6f9bcfd5071d36367246c4a1f071602c92ae5a8c029
[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" "b9d7a4e0a910397c35b6a6f9bcfd5071d36367246c4a1f071602c92ae5a8c029", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking ord_subset v3.1.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]    Compiling decimal v2.1.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking itchy v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.47s
[INFO] running `Command { std: "docker" "inspect" "b9d7a4e0a910397c35b6a6f9bcfd5071d36367246c4a1f071602c92ae5a8c029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9d7a4e0a910397c35b6a6f9bcfd5071d36367246c4a1f071602c92ae5a8c029", kill_on_drop: false }`
[INFO] [stdout] b9d7a4e0a910397c35b6a6f9bcfd5071d36367246c4a1f071602c92ae5a8c029