[INFO] fetching crate contact-tracing 0.2.1...
[INFO] checking contact-tracing-0.2.1 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate contact-tracing 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate contact-tracing 0.2.1 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 contact-tracing 0.2.1
[INFO] finished tweaking crates.io crate contact-tracing 0.2.1
[INFO] tweaked toml for crates.io crate contact-tracing 0.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 893ca8c7d65e583ecafe741b3997277901865073a95919761ad4449cf1f51147
[INFO] running `Command { std: "docker" "start" "-a" "893ca8c7d65e583ecafe741b3997277901865073a95919761ad4449cf1f51147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "893ca8c7d65e583ecafe741b3997277901865073a95919761ad4449cf1f51147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "893ca8c7d65e583ecafe741b3997277901865073a95919761ad4449cf1f51147", kill_on_drop: false }`
[INFO] [stdout] 893ca8c7d65e583ecafe741b3997277901865073a95919761ad4449cf1f51147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] e1fa824f7e9c44617578cd202780374130d4a3e61d1543fdb75df0d6efe7df91
[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" "e1fa824f7e9c44617578cd202780374130d4a3e61d1543fdb75df0d6efe7df91", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking hkdf v0.8.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling derive_more v0.99.10
[INFO] [stderr]     Checking contact-tracing v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.40s
[INFO] running `Command { std: "docker" "inspect" "e1fa824f7e9c44617578cd202780374130d4a3e61d1543fdb75df0d6efe7df91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1fa824f7e9c44617578cd202780374130d4a3e61d1543fdb75df0d6efe7df91", kill_on_drop: false }`
[INFO] [stdout] e1fa824f7e9c44617578cd202780374130d4a3e61d1543fdb75df0d6efe7df91