[INFO] fetching crate strobe-rs 0.5.4...
[INFO] checking strobe-rs-0.5.4 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate strobe-rs 0.5.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate strobe-rs 0.5.4 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate strobe-rs 0.5.4
[INFO] finished tweaking crates.io crate strobe-rs 0.5.4
[INFO] tweaked toml for crates.io crate strobe-rs 0.5.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate strobe-rs 0.5.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e233f2d3ae0d17f5eabe418b895fa29be4e84685f92c8bbb29d9a0e5ceec2e7f
[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" "e233f2d3ae0d17f5eabe418b895fa29be4e84685f92c8bbb29d9a0e5ceec2e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e233f2d3ae0d17f5eabe418b895fa29be4e84685f92c8bbb29d9a0e5ceec2e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e233f2d3ae0d17f5eabe418b895fa29be4e84685f92c8bbb29d9a0e5ceec2e7f", kill_on_drop: false }`
[INFO] [stdout] e233f2d3ae0d17f5eabe418b895fa29be4e84685f92c8bbb29d9a0e5ceec2e7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86666d5dd16c764bcca1eb9958618263927cfeb45ac99dc728848a9584ed9252
[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" "86666d5dd16c764bcca1eb9958618263927cfeb45ac99dc728848a9584ed9252", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]     Checking tiny-keccak v2.0.2
[INFO] [stderr]     Checking strobe-rs v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.82s
[INFO] running `Command { std: "docker" "inspect" "86666d5dd16c764bcca1eb9958618263927cfeb45ac99dc728848a9584ed9252", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86666d5dd16c764bcca1eb9958618263927cfeb45ac99dc728848a9584ed9252", kill_on_drop: false }`
[INFO] [stdout] 86666d5dd16c764bcca1eb9958618263927cfeb45ac99dc728848a9584ed9252