[INFO] cloning repository https://github.com/cbrune/pring
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cbrune/pring" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbrune%2Fpring", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbrune%2Fpring'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1249a8320a683ebdcbe5bc0a41ca9e4138dcde66
[INFO] checking cbrune/pring against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbrune%2Fpring" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cbrune/pring on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cbrune/pring
[INFO] finished tweaking git repo https://github.com/cbrune/pring
[INFO] tweaked toml for git repo https://github.com/cbrune/pring written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cbrune/pring already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69d226093e54112eec8847b48fd4e35d5004efa1dd9b814dc14c6fae56335521
[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" "69d226093e54112eec8847b48fd4e35d5004efa1dd9b814dc14c6fae56335521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69d226093e54112eec8847b48fd4e35d5004efa1dd9b814dc14c6fae56335521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69d226093e54112eec8847b48fd4e35d5004efa1dd9b814dc14c6fae56335521", kill_on_drop: false }`
[INFO] [stdout] 69d226093e54112eec8847b48fd4e35d5004efa1dd9b814dc14c6fae56335521
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71b9b6630deb6ff94640f3f5e7f36695566a2c6801ffb92236b9145f42383842
[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" "71b9b6630deb6ff94640f3f5e7f36695566a2c6801ffb92236b9145f42383842", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking pnet_base v0.27.2 (https://github.com/libpnet/libpnet.git?rev=5b7103ab4e651713f6dc4359e264b6ddee063d6a#5b7103ab)
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling pnet v0.27.2 (https://github.com/libpnet/libpnet.git?rev=5b7103ab4e651713f6dc4359e264b6ddee063d6a#5b7103ab)
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]     Checking pnet_macros_support v0.27.2 (https://github.com/libpnet/libpnet.git?rev=5b7103ab4e651713f6dc4359e264b6ddee063d6a#5b7103ab)
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking pnet_sys v0.27.2 (https://github.com/libpnet/libpnet.git?rev=5b7103ab4e651713f6dc4359e264b6ddee063d6a#5b7103ab)
[INFO] [stderr]     Checking socket2 v0.3.17
[INFO] [stderr]     Checking ipnetwork v0.17.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking dns-lookup v1.0.5
[INFO] [stderr]     Checking pnet_datalink v0.27.2 (https://github.com/libpnet/libpnet.git?rev=5b7103ab4e651713f6dc4359e264b6ddee063d6a#5b7103ab)
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]    Compiling pring v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.27.2 (https://github.com/libpnet/libpnet.git?rev=5b7103ab4e651713f6dc4359e264b6ddee063d6a#5b7103ab)
[INFO] [stderr]    Compiling pnet_packet v0.27.2 (https://github.com/libpnet/libpnet.git?rev=5b7103ab4e651713f6dc4359e264b6ddee063d6a#5b7103ab)
[INFO] [stderr]     Checking pnet_transport v0.27.2 (https://github.com/libpnet/libpnet.git?rev=5b7103ab4e651713f6dc4359e264b6ddee063d6a#5b7103ab)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 32s
[INFO] running `Command { std: "docker" "inspect" "71b9b6630deb6ff94640f3f5e7f36695566a2c6801ffb92236b9145f42383842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b9b6630deb6ff94640f3f5e7f36695566a2c6801ffb92236b9145f42383842", kill_on_drop: false }`
[INFO] [stdout] 71b9b6630deb6ff94640f3f5e7f36695566a2c6801ffb92236b9145f42383842