[INFO] cloning repository https://github.com/jjballano/rust_programming_language_examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jjballano/rust_programming_language_examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjballano%2Frust_programming_language_examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjballano%2Frust_programming_language_examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c0935a2dfc5c770f3e42e100c44d7e38130db75
[INFO] checking jjballano/rust_programming_language_examples against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjballano%2Frust_programming_language_examples" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jjballano/rust_programming_language_examples on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jjballano/rust_programming_language_examples
[INFO] finished tweaking git repo https://github.com/jjballano/rust_programming_language_examples
[INFO] tweaked toml for git repo https://github.com/jjballano/rust_programming_language_examples written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jjballano/rust_programming_language_examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "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] 33ff35c19b2013df4d3a15e93e619b2e26e62bbd4cfcb7fce45d95e0f7d26e59
[INFO] running `Command { std: "docker" "start" "-a" "33ff35c19b2013df4d3a15e93e619b2e26e62bbd4cfcb7fce45d95e0f7d26e59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33ff35c19b2013df4d3a15e93e619b2e26e62bbd4cfcb7fce45d95e0f7d26e59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33ff35c19b2013df4d3a15e93e619b2e26e62bbd4cfcb7fce45d95e0f7d26e59", kill_on_drop: false }`
[INFO] [stdout] 33ff35c19b2013df4d3a15e93e619b2e26e62bbd4cfcb7fce45d95e0f7d26e59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e27444407d2d6aedb119548d6fdfc2cbed57e49ca636a2f1390ceba0c61af13d
[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" "e27444407d2d6aedb119548d6fdfc2cbed57e49ca636a2f1390ceba0c61af13d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking book_examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.52s
[INFO] running `Command { std: "docker" "inspect" "e27444407d2d6aedb119548d6fdfc2cbed57e49ca636a2f1390ceba0c61af13d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e27444407d2d6aedb119548d6fdfc2cbed57e49ca636a2f1390ceba0c61af13d", kill_on_drop: false }`
[INFO] [stdout] e27444407d2d6aedb119548d6fdfc2cbed57e49ca636a2f1390ceba0c61af13d