[INFO] fetching crate cvars 0.1.0...
[INFO] checking cvars-0.1.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate cvars 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cvars 0.1.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cvars 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cvars 0.1.0
[INFO] tweaked toml for crates.io crate cvars 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate cvars 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 504f3c9d9db271a7c9eb7dfebf9942a7f4fd663c2331d65776e661f895d9e9a5
[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" "504f3c9d9db271a7c9eb7dfebf9942a7f4fd663c2331d65776e661f895d9e9a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "504f3c9d9db271a7c9eb7dfebf9942a7f4fd663c2331d65776e661f895d9e9a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "504f3c9d9db271a7c9eb7dfebf9942a7f4fd663c2331d65776e661f895d9e9a5", kill_on_drop: false }`
[INFO] [stdout] 504f3c9d9db271a7c9eb7dfebf9942a7f4fd663c2331d65776e661f895d9e9a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bbdcd49e7beb5c7b204d2bd795f35c12f91be1eb3404b23014b51fe31fabc11
[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" "1bbdcd49e7beb5c7b204d2bd795f35c12f91be1eb3404b23014b51fe31fabc11", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling trybuild v1.0.43
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking dissimilar v1.0.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking cvars v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]     Checking serde v1.0.127
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.20s
[INFO] running `Command { std: "docker" "inspect" "1bbdcd49e7beb5c7b204d2bd795f35c12f91be1eb3404b23014b51fe31fabc11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bbdcd49e7beb5c7b204d2bd795f35c12f91be1eb3404b23014b51fe31fabc11", kill_on_drop: false }`
[INFO] [stdout] 1bbdcd49e7beb5c7b204d2bd795f35c12f91be1eb3404b23014b51fe31fabc11