[INFO] updating cached repository https://github.com/nishtahir/identicon-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 959caf8831fbc2e2fb2dd79acd6fb735d79ec241
[INFO] checking nishtahir/identicon-generator against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnishtahir%2Fidenticon-generator" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nishtahir/identicon-generator on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nishtahir/identicon-generator
[INFO] finished tweaking git repo https://github.com/nishtahir/identicon-generator
[INFO] tweaked toml for git repo https://github.com/nishtahir/identicon-generator written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/nishtahir/identicon-generator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0228a2a3fbd83569db5d0586194b4bf4c53784a58cb54b3c5ed4861bef0de753
[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" "0228a2a3fbd83569db5d0586194b4bf4c53784a58cb54b3c5ed4861bef0de753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0228a2a3fbd83569db5d0586194b4bf4c53784a58cb54b3c5ed4861bef0de753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0228a2a3fbd83569db5d0586194b4bf4c53784a58cb54b3c5ed4861bef0de753", kill_on_drop: false }`
[INFO] [stdout] 0228a2a3fbd83569db5d0586194b4bf4c53784a58cb54b3c5ed4861bef0de753
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "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] 8e203fdc04928df6b735079a3b2335481c0089e27695132f87ce7cd4a6c20bbe
[INFO] running `Command { std: "docker" "start" "-a" "8e203fdc04928df6b735079a3b2335481c0089e27695132f87ce7cd4a6c20bbe", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking libc v0.2.30
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking scopeguard v0.3.2
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking futures v0.1.15
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]    Compiling gcc v0.3.53
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking deflate v0.7.16
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num-rational v0.1.39
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking image v0.12.4
[INFO] [stderr]     Checking image-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.47s
[INFO] running `Command { std: "docker" "inspect" "8e203fdc04928df6b735079a3b2335481c0089e27695132f87ce7cd4a6c20bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e203fdc04928df6b735079a3b2335481c0089e27695132f87ce7cd4a6c20bbe", kill_on_drop: false }`
[INFO] [stdout] 8e203fdc04928df6b735079a3b2335481c0089e27695132f87ce7cd4a6c20bbe