[INFO] cloning repository https://github.com/Densaugeo/Niflheim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Densaugeo/Niflheim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDensaugeo%2FNiflheim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDensaugeo%2FNiflheim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3955f149be2e66f3b6389dddf53399dd73480ac5
[INFO] checking Densaugeo/Niflheim against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDensaugeo%2FNiflheim" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Densaugeo/Niflheim on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Densaugeo/Niflheim
[INFO] finished tweaking git repo https://github.com/Densaugeo/Niflheim
[INFO] tweaked toml for git repo https://github.com/Densaugeo/Niflheim written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Densaugeo/Niflheim already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.9
[INFO] [stderr]   Downloaded rand v0.3.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4b9ccd4723c7c011d1d0c5037aba655b3c06e0aa95226e7f8caf4a7a820a110
[INFO] running `Command { std: "docker" "start" "-a" "e4b9ccd4723c7c011d1d0c5037aba655b3c06e0aa95226e7f8caf4a7a820a110", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4b9ccd4723c7c011d1d0c5037aba655b3c06e0aa95226e7f8caf4a7a820a110", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4b9ccd4723c7c011d1d0c5037aba655b3c06e0aa95226e7f8caf4a7a820a110", kill_on_drop: false }`
[INFO] [stdout] e4b9ccd4723c7c011d1d0c5037aba655b3c06e0aa95226e7f8caf4a7a820a110
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1b2259b16714ef98131dcf5a7b66a18b68cc041f92fe0f086b0af0a13f7034d
[INFO] running `Command { std: "docker" "start" "-a" "f1b2259b16714ef98131dcf5a7b66a18b68cc041f92fe0f086b0af0a13f7034d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.9
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking sim v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Terrain`
[INFO] [stdout]   --> src/main.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | use particles::{Agent, Terrain, Cell};
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Terrain`
[INFO] [stdout]   --> src/main.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | use particles::{Agent, Terrain, Cell};
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]  --> src/main.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread::sleep_ms;
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/main.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |     map = std::mem::uninitialized();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]    --> src/main.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 210 |     sleep_ms(1000);
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]  --> src/main.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread::sleep_ms;
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/main.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |     map = std::mem::uninitialized();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]    --> src/main.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 210 |     sleep_ms(1000);
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PacketBuffer`
[INFO] [stdout]   --> src/main.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 | use packets::{PacketData, PacketBuffer, CellBuffer};
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PacketBuffer`
[INFO] [stdout]   --> src/main.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 | use packets::{PacketData, PacketBuffer, CellBuffer};
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `PacketType` is more private than the item `PacketBuffer::push_header`
[INFO] [stdout]   --> src/packets.rs:91:3
[INFO] [stdout]    |
[INFO] [stdout] 91 |   fn push_header(&mut self, packet_type: PacketType) {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `PacketBuffer::push_header` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `PacketType` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/packets.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | enum PacketType {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `PacketType` is more private than the item `PacketBuffer::push_header`
[INFO] [stdout]   --> src/packets.rs:91:3
[INFO] [stdout]    |
[INFO] [stdout] 91 |   fn push_header(&mut self, packet_type: PacketType) {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `PacketBuffer::push_header` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `PacketType` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/packets.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | enum PacketType {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pauli` is never read
[INFO] [stdout]   --> src/particles.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Species {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 17 |   pub type_id: u32,
[INFO] [stdout] 18 |   pub pauli: bool,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `SPECIES_LIBRARY` is never used
[INFO] [stdout]   --> src/particles.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub static SPECIES_LIBRARY: [Species; 2] = [
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `agent_id` is never read
[INFO] [stdout]   --> src/packets.rs:35:7
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct AgentActionPacket {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 35 |   pub agent_id: u32,
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[[particles::Cell; 16]; 16]` does not permit being left uninitialized
[INFO] [stdout]   --> src/main.rs:30:11
[INFO] [stdout]    |
[INFO] [stdout] 30 |     map = std::mem::uninitialized();
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           this code causes undefined behavior when executed
[INFO] [stdout]    |           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/particles.rs:47:3
[INFO] [stdout]    |
[INFO] [stdout] 47 |   pub x: i16,
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pauli` is never read
[INFO] [stdout]   --> src/particles.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Species {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 17 |   pub type_id: u32,
[INFO] [stdout] 18 |   pub pauli: bool,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `agent_id` is never read
[INFO] [stdout]   --> src/packets.rs:35:7
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct AgentActionPacket {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 35 |   pub agent_id: u32,
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[[particles::Cell; 16]; 16]` does not permit being left uninitialized
[INFO] [stdout]   --> src/main.rs:30:11
[INFO] [stdout]    |
[INFO] [stdout] 30 |     map = std::mem::uninitialized();
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           this code causes undefined behavior when executed
[INFO] [stdout]    |           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/particles.rs:47:3
[INFO] [stdout]    |
[INFO] [stdout] 47 |   pub x: i16,
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "f1b2259b16714ef98131dcf5a7b66a18b68cc041f92fe0f086b0af0a13f7034d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b2259b16714ef98131dcf5a7b66a18b68cc041f92fe0f086b0af0a13f7034d", kill_on_drop: false }`
[INFO] [stdout] f1b2259b16714ef98131dcf5a7b66a18b68cc041f92fe0f086b0af0a13f7034d