[INFO] cloning repository https://github.com/PlasmaPower/random-walk
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PlasmaPower/random-walk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPlasmaPower%2Frandom-walk"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPlasmaPower%2Frandom-walk'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4c3be3cb2aee6f580185c50dbbc60c3aabe38750
[INFO] checking PlasmaPower/random-walk against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPlasmaPower%2Frandom-walk" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PlasmaPower/random-walk on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/PlasmaPower/random-walk
[INFO] finished tweaking git repo https://github.com/PlasmaPower/random-walk
[INFO] tweaked toml for git repo https://github.com/PlasmaPower/random-walk written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/PlasmaPower/random-walk already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 95b7a8085abceb683f5632ae246c441151d841d336a656bf2c84fa8a53013fa8
[INFO] running `"docker" "start" "-a" "95b7a8085abceb683f5632ae246c441151d841d336a656bf2c84fa8a53013fa8"`
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]     Checking random-walk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:51:30
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn random_walk(mut rng: &mut Rng, starting_room: &Room) -> u8 {
[INFO] [stderr]    |                              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | / lazy_static! {
[INFO] [stderr] 39 | |     static ref ROOMS: HashMap<&'static str, Room> = {
[INFO] [stderr] 40 | |         let mut map = HashMap::new();
[INFO] [stderr] 41 | |         map.insert("A", Room::new(vec!["F", "D"]));
[INFO] [stderr] ...  |
[INFO] [stderr] 48 | |     };
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | / lazy_static! {
[INFO] [stderr] 39 | |     static ref ROOMS: HashMap<&'static str, Room> = {
[INFO] [stderr] 40 | |         let mut map = HashMap::new();
[INFO] [stderr] 41 | |         map.insert("A", Room::new(vec!["F", "D"]));
[INFO] [stderr] ...  |
[INFO] [stderr] 48 | |     };
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:51:30
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn random_walk(mut rng: &mut Rng, starting_room: &Room) -> u8 {
[INFO] [stderr]    |                              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | / lazy_static! {
[INFO] [stderr] 39 | |     static ref ROOMS: HashMap<&'static str, Room> = {
[INFO] [stderr] 40 | |         let mut map = HashMap::new();
[INFO] [stderr] 41 | |         map.insert("A", Room::new(vec!["F", "D"]));
[INFO] [stderr] ...  |
[INFO] [stderr] 48 | |     };
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | / lazy_static! {
[INFO] [stderr] 39 | |     static ref ROOMS: HashMap<&'static str, Room> = {
[INFO] [stderr] 40 | |         let mut map = HashMap::new();
[INFO] [stderr] 41 | |         map.insert("A", Room::new(vec!["F", "D"]));
[INFO] [stderr] ...  |
[INFO] [stderr] 48 | |     };
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.00s
[INFO] running `"docker" "inspect" "95b7a8085abceb683f5632ae246c441151d841d336a656bf2c84fa8a53013fa8"`
[INFO] running `"docker" "rm" "-f" "95b7a8085abceb683f5632ae246c441151d841d336a656bf2c84fa8a53013fa8"`
[INFO] [stdout] 95b7a8085abceb683f5632ae246c441151d841d336a656bf2c84fa8a53013fa8