[INFO] cloning repository https://github.com/chessai/kvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chessai/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchessai%2Fkvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchessai%2Fkvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ded28dd8663ba59687b3214f0192c5c622a67a51
[INFO] checking chessai/kvs against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchessai%2Fkvs" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chessai/kvs on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chessai/kvs
[INFO] finished tweaking git repo https://github.com/chessai/kvs
[INFO] tweaked toml for git repo https://github.com/chessai/kvs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/chessai/kvs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.1.7
[INFO] [stderr]   Downloaded regex-syntax v0.6.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8349afa9dd249326e2f134c21ad938a325a9037848e26f562368b42b44b8e5c
[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" "d8349afa9dd249326e2f134c21ad938a325a9037848e26f562368b42b44b8e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8349afa9dd249326e2f134c21ad938a325a9037848e26f562368b42b44b8e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8349afa9dd249326e2f134c21ad938a325a9037848e26f562368b42b44b8e5c", kill_on_drop: false }`
[INFO] [stdout] d8349afa9dd249326e2f134c21ad938a325a9037848e26f562368b42b44b8e5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b9e68019b66d42a6d622b657743eb67f86051489eed5727d7f938126c6aac5b
[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" "9b9e68019b66d42a6d622b657743eb67f86051489eed5727d7f938126c6aac5b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.94
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.31s
[INFO] running `Command { std: "docker" "inspect" "9b9e68019b66d42a6d622b657743eb67f86051489eed5727d7f938126c6aac5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b9e68019b66d42a6d622b657743eb67f86051489eed5727d7f938126c6aac5b", kill_on_drop: false }`
[INFO] [stdout] 9b9e68019b66d42a6d622b657743eb67f86051489eed5727d7f938126c6aac5b