[INFO] cloning repository https://github.com/wongsyrone/rustlings-solution [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wongsyrone/rustlings-solution" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwongsyrone%2Frustlings-solution", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwongsyrone%2Frustlings-solution'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 69994bca22ddb90bc7739e218ca4697dfd339a98 [INFO] checking wongsyrone/rustlings-solution against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwongsyrone%2Frustlings-solution" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wongsyrone/rustlings-solution on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wongsyrone/rustlings-solution [INFO] finished tweaking git repo https://github.com/wongsyrone/rustlings-solution [INFO] tweaked toml for git repo https://github.com/wongsyrone/rustlings-solution written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/wongsyrone/rustlings-solution already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "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 console v0.8.0 [INFO] [stderr] Downloaded indicatif v0.10.3 [INFO] [stderr] Downloaded serde_derive v1.0.92 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6078bddee9f3031d4e1ba80bc0e924cea6784ed4ca0b136cef82c80ecebcccd3 [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" "6078bddee9f3031d4e1ba80bc0e924cea6784ed4ca0b136cef82c80ecebcccd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6078bddee9f3031d4e1ba80bc0e924cea6784ed4ca0b136cef82c80ecebcccd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6078bddee9f3031d4e1ba80bc0e924cea6784ed4ca0b136cef82c80ecebcccd3", kill_on_drop: false }` [INFO] [stdout] 6078bddee9f3031d4e1ba80bc0e924cea6784ed4ca0b136cef82c80ecebcccd3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9e07100bdff2470d495e385cd1337285d12a19634c422da4ae5e7d8587eaafac [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" "9e07100bdff2470d495e385cd1337285d12a19634c422da4ae5e7d8587eaafac", kill_on_drop: false }` [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking lock_api v0.2.0 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Checking clicolors-control v1.0.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking filetime v0.2.5 [INFO] [stderr] Checking inotify v0.7.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking console v0.8.0 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Checking predicates v1.0.1 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking mio-extras v2.0.5 [INFO] [stderr] Checking notify v4.0.15 [INFO] [stderr] Checking console v0.7.7 [INFO] [stderr] Checking indicatif v0.10.3 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Checking serde v1.0.92 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking rustlings v4.3.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking escargot v0.4.0 [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 39.85s [INFO] running `Command { std: "docker" "inspect" "9e07100bdff2470d495e385cd1337285d12a19634c422da4ae5e7d8587eaafac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e07100bdff2470d495e385cd1337285d12a19634c422da4ae5e7d8587eaafac", kill_on_drop: false }` [INFO] [stdout] 9e07100bdff2470d495e385cd1337285d12a19634c422da4ae5e7d8587eaafac