[INFO] cloning repository https://github.com/PlasmaPower/random-walk [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPlasmaPower%2Frandom-walk'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4c3be3cb2aee6f580185c50dbbc60c3aabe38750 [INFO] checking PlasmaPower/random-walk against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPlasmaPower%2Frandom-walk" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/PlasmaPower/random-walk 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/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-9/source/Cargo.toml [INFO] crate git repo https://github.com/PlasmaPower/random-walk 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 432f0d88649ec56643ee5eb73ee7011a077c1e82e9c59bcf7e327e0c252eb784 [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" "432f0d88649ec56643ee5eb73ee7011a077c1e82e9c59bcf7e327e0c252eb784", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "432f0d88649ec56643ee5eb73ee7011a077c1e82e9c59bcf7e327e0c252eb784", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "432f0d88649ec56643ee5eb73ee7011a077c1e82e9c59bcf7e327e0c252eb784", kill_on_drop: false }` [INFO] [stdout] 432f0d88649ec56643ee5eb73ee7011a077c1e82e9c59bcf7e327e0c252eb784 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f2ecdea544f8403fd6b8a6169249b6553e768be103826dcd05ef96d55cfd87c3 [INFO] running `Command { std: "docker" "start" "-a" "f2ecdea544f8403fd6b8a6169249b6553e768be103826dcd05ef96d55cfd87c3", kill_on_drop: false }` [INFO] [stderr] Checking yaml-rust v0.3.5 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stderr] Checking strsim v0.6.0 [INFO] [stderr] Checking unicode-width v0.1.4 [INFO] [stderr] Checking vec_map v0.8.0 [INFO] [stderr] Checking fnv v1.0.5 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking clap v2.24.2 [INFO] [stderr] Checking random-walk v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:51:30 [INFO] [stdout] | [INFO] [stdout] 51 | fn random_walk(mut rng: &mut Rng, starting_room: &Room) -> u8 { [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Rng` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/main.rs:38:1 [INFO] [stdout] | [INFO] [stdout] 38 | / lazy_static! { [INFO] [stdout] 39 | | static ref ROOMS: HashMap<&'static str, Room> = { [INFO] [stdout] 40 | | let mut map = HashMap::new(); [INFO] [stdout] 41 | | map.insert("A", Room::new(vec!["F", "D"])); [INFO] [stdout] ... | [INFO] [stdout] 48 | | }; [INFO] [stdout] 49 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/main.rs:38:1 [INFO] [stdout] | [INFO] [stdout] 38 | / lazy_static! { [INFO] [stdout] 39 | | static ref ROOMS: HashMap<&'static str, Room> = { [INFO] [stdout] 40 | | let mut map = HashMap::new(); [INFO] [stdout] 41 | | map.insert("A", Room::new(vec!["F", "D"])); [INFO] [stdout] ... | [INFO] [stdout] 48 | | }; [INFO] [stdout] 49 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:51:30 [INFO] [stdout] | [INFO] [stdout] 51 | fn random_walk(mut rng: &mut Rng, starting_room: &Room) -> u8 { [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Rng` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/main.rs:38:1 [INFO] [stdout] | [INFO] [stdout] 38 | / lazy_static! { [INFO] [stdout] 39 | | static ref ROOMS: HashMap<&'static str, Room> = { [INFO] [stdout] 40 | | let mut map = HashMap::new(); [INFO] [stdout] 41 | | map.insert("A", Room::new(vec!["F", "D"])); [INFO] [stdout] ... | [INFO] [stdout] 48 | | }; [INFO] [stdout] 49 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/main.rs:38:1 [INFO] [stdout] | [INFO] [stdout] 38 | / lazy_static! { [INFO] [stdout] 39 | | static ref ROOMS: HashMap<&'static str, Room> = { [INFO] [stdout] 40 | | let mut map = HashMap::new(); [INFO] [stdout] 41 | | map.insert("A", Room::new(vec!["F", "D"])); [INFO] [stdout] ... | [INFO] [stdout] 48 | | }; [INFO] [stdout] 49 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/main.rs:109:52 [INFO] [stdout] | [INFO] [stdout] 109 | for (index, count) in small_counts.into_iter().enumerate() { [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/main.rs:109:52 [INFO] [stdout] | [INFO] [stdout] 109 | for (index, count) in small_counts.into_iter().enumerate() { [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.33s [INFO] running `Command { std: "docker" "inspect" "f2ecdea544f8403fd6b8a6169249b6553e768be103826dcd05ef96d55cfd87c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f2ecdea544f8403fd6b8a6169249b6553e768be103826dcd05ef96d55cfd87c3", kill_on_drop: false }` [INFO] [stdout] f2ecdea544f8403fd6b8a6169249b6553e768be103826dcd05ef96d55cfd87c3