[INFO] fetching crate retstat 1.1.1...
[INFO] checking retstat-1.1.1 against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] extracting crate retstat 1.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate retstat 1.1.1 on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate retstat 1.1.1
[INFO] finished tweaking crates.io crate retstat 1.1.1
[INFO] tweaked toml for crates.io crate retstat 1.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate retstat 1.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "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" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0995dd87bc5d947781e68de22ccbda583f41afd2585a5f843a273630d57b8fbf
[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" "0995dd87bc5d947781e68de22ccbda583f41afd2585a5f843a273630d57b8fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0995dd87bc5d947781e68de22ccbda583f41afd2585a5f843a273630d57b8fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0995dd87bc5d947781e68de22ccbda583f41afd2585a5f843a273630d57b8fbf", kill_on_drop: false }`
[INFO] [stdout] 0995dd87bc5d947781e68de22ccbda583f41afd2585a5f843a273630d57b8fbf
[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" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "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] afb17f11d330460e63eaba6e8d1aa19e76b4abae0e4f6fd9e579d91d4184d9cf
[INFO] running `Command { std: "docker" "start" "-a" "afb17f11d330460e63eaba6e8d1aa19e76b4abae0e4f6fd9e579d91d4184d9cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking chunked_transfer v1.2.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking tiny_http v0.7.0
[INFO] [stderr]     Checking retstat v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.00s
[INFO] running `Command { std: "docker" "inspect" "afb17f11d330460e63eaba6e8d1aa19e76b4abae0e4f6fd9e579d91d4184d9cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afb17f11d330460e63eaba6e8d1aa19e76b4abae0e4f6fd9e579d91d4184d9cf", kill_on_drop: false }`
[INFO] [stdout] afb17f11d330460e63eaba6e8d1aa19e76b4abae0e4f6fd9e579d91d4184d9cf