[INFO] cloning repository https://github.com/Greast/Saver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Greast/Saver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGreast%2FSaver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGreast%2FSaver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 987e14e83988018f95ca4523b6e2b6da491f827b
[INFO] checking Greast/Saver against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGreast%2FSaver" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Greast/Saver on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Greast/Saver
[INFO] finished tweaking git repo https://github.com/Greast/Saver
[INFO] tweaked toml for git repo https://github.com/Greast/Saver written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/Greast/Saver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-pc-windows-gnu.ar
[INFO] [stderr] warning: unused manifest key: target.x86_64-pc-windows-gnu.linker
[INFO] [stderr] warning: unused manifest key: toolchain
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 860bd7b95ac953915d4fde5b56692d7b88c01d9e9f8b3c3e915a96e99c9c6ede
[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" "860bd7b95ac953915d4fde5b56692d7b88c01d9e9f8b3c3e915a96e99c9c6ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "860bd7b95ac953915d4fde5b56692d7b88c01d9e9f8b3c3e915a96e99c9c6ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "860bd7b95ac953915d4fde5b56692d7b88c01d9e9f8b3c3e915a96e99c9c6ede", kill_on_drop: false }`
[INFO] [stdout] 860bd7b95ac953915d4fde5b56692d7b88c01d9e9f8b3c3e915a96e99c9c6ede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b9a744c8a766cbd16a89b65ce60acb57db7b3414bfd83efd24cc16b46313eab
[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" "1b9a744c8a766cbd16a89b65ce60acb57db7b3414bfd83efd24cc16b46313eab", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-pc-windows-gnu.ar
[INFO] [stderr] warning: unused manifest key: target.x86_64-pc-windows-gnu.linker
[INFO] [stderr] warning: unused manifest key: toolchain
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking Saver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `Saver` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `saver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Saver` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `saver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.47s
[INFO] running `Command { std: "docker" "inspect" "1b9a744c8a766cbd16a89b65ce60acb57db7b3414bfd83efd24cc16b46313eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b9a744c8a766cbd16a89b65ce60acb57db7b3414bfd83efd24cc16b46313eab", kill_on_drop: false }`
[INFO] [stdout] 1b9a744c8a766cbd16a89b65ce60acb57db7b3414bfd83efd24cc16b46313eab