[INFO] fetching crate GenGen 0.1.0...
[INFO] checking GenGen-0.1.0 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate GenGen 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate GenGen 0.1.0 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate GenGen 0.1.0
[INFO] finished tweaking crates.io crate GenGen 0.1.0
[INFO] tweaked toml for crates.io crate GenGen 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbf3e910ab1702c84e809346d67a3c091b30eb55cdb4cbdbad2ed4a6ecbd5aa8
[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" "cbf3e910ab1702c84e809346d67a3c091b30eb55cdb4cbdbad2ed4a6ecbd5aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbf3e910ab1702c84e809346d67a3c091b30eb55cdb4cbdbad2ed4a6ecbd5aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbf3e910ab1702c84e809346d67a3c091b30eb55cdb4cbdbad2ed4a6ecbd5aa8", kill_on_drop: false }`
[INFO] [stdout] cbf3e910ab1702c84e809346d67a3c091b30eb55cdb4cbdbad2ed4a6ecbd5aa8
[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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "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] faed49245a71a0c7d95369d3b692ef6622b575dc86c7e44fc327f8ca385c6f0f
[INFO] running `Command { std: "docker" "start" "-a" "faed49245a71a0c7d95369d3b692ef6622b575dc86c7e44fc327f8ca385c6f0f", kill_on_drop: false }`
[INFO] [stderr]     Checking GenGen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `GenGen` 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: `gen_gen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `GenGen` 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: `gen_gen`
[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 0.22s
[INFO] running `Command { std: "docker" "inspect" "faed49245a71a0c7d95369d3b692ef6622b575dc86c7e44fc327f8ca385c6f0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faed49245a71a0c7d95369d3b692ef6622b575dc86c7e44fc327f8ca385c6f0f", kill_on_drop: false }`
[INFO] [stdout] faed49245a71a0c7d95369d3b692ef6622b575dc86c7e44fc327f8ca385c6f0f