[INFO] cloning repository https://github.com/mitsuhiko/qq [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mitsuhiko/qq" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fqq", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fqq'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b2323ed7a929a179f9ea26f537e961a2e6f80107 [INFO] checking mitsuhiko/qq against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fqq" "/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/mitsuhiko/qq on toolchain 339e19697a39a78f4d669c217b7d21109215de41 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mitsuhiko/qq [INFO] finished tweaking git repo https://github.com/mitsuhiko/qq [INFO] tweaked toml for git repo https://github.com/mitsuhiko/qq written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/mitsuhiko/qq already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded maplit v1.0.1 [INFO] [stderr] Downloaded structopt-derive v0.2.14 [INFO] [stderr] Downloaded pest_generator v2.1.0 [INFO] [stderr] Downloaded redox_syscall v0.1.50 [INFO] [stderr] Downloaded ryu v0.2.7 [INFO] [stderr] Downloaded structopt v0.2.14 [INFO] [stderr] Downloaded generic-array v0.9.0 [INFO] [stderr] Downloaded itoa v0.4.3 [INFO] [stderr] Downloaded serde v1.0.85 [INFO] [stderr] Downloaded syn v0.15.26 [INFO] [stderr] Downloaded libc v0.2.47 [INFO] [stderr] Downloaded serde_json v1.0.36 [INFO] [stderr] Downloaded pest_derive v2.1.0 [INFO] [stderr] Downloaded autocfg v0.1.2 [INFO] [stderr] Downloaded ucd-trie v0.1.1 [INFO] [stderr] Downloaded digest v0.7.6 [INFO] [stderr] Downloaded pest v2.1.0 [INFO] [stderr] Downloaded arrayref v0.3.5 [INFO] [stderr] Downloaded byte-tools v0.2.0 [INFO] [stderr] Downloaded sha-1 v0.7.0 [INFO] [stderr] Downloaded pest_meta v2.1.0 [INFO] [stderr] Downloaded ordered-float v1.0.1 [INFO] [stderr] Downloaded toml v0.4.10 [INFO] [stderr] Downloaded rustc-demangle v0.1.13 [INFO] [stderr] Downloaded failure_derive v0.1.5 [INFO] [stderr] Downloaded failure v0.1.5 [INFO] [stderr] Downloaded block-buffer v0.3.3 [INFO] [stderr] Downloaded typenum v1.10.0 [INFO] [stderr] Downloaded indexmap v1.0.2 [INFO] [stderr] Downloaded serde_yaml v0.8.8 [INFO] [stderr] Downloaded dtoa v0.4.3 [INFO] [stderr] Downloaded proc-macro2 v0.4.25 [INFO] [stderr] Downloaded yaml-rust v0.4.2 [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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 239834ca8a82abe2898e34c74257789b478836c7e6dc3f34c9b8e86c2ef3ef29 [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" "239834ca8a82abe2898e34c74257789b478836c7e6dc3f34c9b8e86c2ef3ef29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "239834ca8a82abe2898e34c74257789b478836c7e6dc3f34c9b8e86c2ef3ef29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "239834ca8a82abe2898e34c74257789b478836c7e6dc3f34c9b8e86c2ef3ef29", kill_on_drop: false }` [INFO] [stdout] 239834ca8a82abe2898e34c74257789b478836c7e6dc3f34c9b8e86c2ef3ef29 [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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 019310bed5a5e586dd59f44ead1b8ea34cbc6cc4a8bd0a043afac3f7eb940d8a [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" "019310bed5a5e586dd59f44ead1b8ea34cbc6cc4a8bd0a043afac3f7eb940d8a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v0.4.25 [INFO] [stderr] Compiling libc v0.2.47 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Compiling backtrace v0.3.13 [INFO] [stderr] Checking indexmap v1.0.2 [INFO] [stderr] Checking serde_yaml v0.8.8 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking serde_json v1.0.36 [INFO] [stderr] Checking serde-value v0.5.3 (https://github.com/mitsuhiko/serde-value?rev=3767089d736480264c7e4fc7a9ca6a1aea65a0e4#3767089d) [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking backtrace-sys v0.1.28 [INFO] [stderr] Compiling quote v0.6.10 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling pest_generator v2.1.0 [INFO] [stderr] Compiling structopt-derive v0.2.14 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking structopt v0.2.14 [INFO] [stderr] Checking qq v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 27.03s [INFO] running `Command { std: "docker" "inspect" "019310bed5a5e586dd59f44ead1b8ea34cbc6cc4a8bd0a043afac3f7eb940d8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "019310bed5a5e586dd59f44ead1b8ea34cbc6cc4a8bd0a043afac3f7eb940d8a", kill_on_drop: false }` [INFO] [stdout] 019310bed5a5e586dd59f44ead1b8ea34cbc6cc4a8bd0a043afac3f7eb940d8a