[INFO] cloning repository https://github.com/comp500/miniworld
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/comp500/miniworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomp500%2Fminiworld", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomp500%2Fminiworld'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b6beb25def764b33c0e45bf7e0df24f2c7929d7
[INFO] testing comp500/miniworld against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomp500%2Fminiworld" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/comp500/miniworld on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/comp500/miniworld
[INFO] finished tweaking git repo https://github.com/comp500/miniworld
[INFO] tweaked toml for git repo https://github.com/comp500/miniworld written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/comp500/miniworld already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zigzag v0.1.0
[INFO] [stderr]   Downloaded tree-buf v0.10.0
[INFO] [stderr]   Downloaded simple-16 v0.2.0
[INFO] [stderr]   Downloaded transmute v0.1.1
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[INFO] [stderr]   Downloaded fenwick v1.0.0
[INFO] [stderr]   Downloaded hilbert_index v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b04d6b66b158e4471698983bf01fb47ad6f369a8171b17f4374fc220d4ae6858
[INFO] running `Command { std: "docker" "start" "-a" "b04d6b66b158e4471698983bf01fb47ad6f369a8171b17f4374fc220d4ae6858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b04d6b66b158e4471698983bf01fb47ad6f369a8171b17f4374fc220d4ae6858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b04d6b66b158e4471698983bf01fb47ad6f369a8171b17f4374fc220d4ae6858", kill_on_drop: false }`
[INFO] [stdout] b04d6b66b158e4471698983bf01fb47ad6f369a8171b17f4374fc220d4ae6858
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc6edc0781b8a5e14b7a9241ce3bef6742584cbbc90f15cb5f619906e22326d6
[INFO] running `Command { std: "docker" "start" "-a" "dc6edc0781b8a5e14b7a9241ce3bef6742584cbbc90f15cb5f619906e22326d6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
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[INFO] [stderr]    Compiling zigzag v0.1.0
[INFO] [stderr]    Compiling xz2 v0.1.6
[INFO] [stderr]    Compiling coercible_errors v0.1.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]    Compiling enum-iterator-derive v0.6.0
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling tree-buf-macros v0.10.0
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]    Compiling enum_dispatch v0.3.7
[INFO] [stderr]    Compiling enum-iterator v0.6.0
[INFO] [stderr]    Compiling tree-buf v0.10.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling hematite-nbt v0.5.0
[INFO] [stderr]    Compiling zstd-safe v2.0.5+zstd.1.4.5
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling zstd v0.5.3+zstd.1.4.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling num_enum v0.5.1
[INFO] [stderr]    Compiling miniworld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BufWriter`, `Cursor`, `Write`
[INFO] [stdout]  --> src/main.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | use io::{BufWriter, Seek, SeekFrom, Read, Cursor, Write};
[INFO] [stdout]   |          ^^^^^^^^^                        ^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::HashMap`, `time::Instant`
[INFO] [stdout]   --> src/main.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | time::Instant, collections::BTreeMap, collections::HashMap};
[INFO] [stdout]    | ^^^^^^^^^^^^^                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/integertransformers.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `marker::PhantomData`
[INFO] [stdout]  --> src/integertransformers.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{convert::TryInto, marker::PhantomData};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ByteOrder`
[INFO] [stdout]  --> src/main.rs:5:42
[INFO] [stdout]   |
[INFO] [stdout] 5 | use byteorder::{BigEndian, ReadBytesExt, ByteOrder};
[INFO] [stdout]   |                                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/main.rs:6:37
[INFO] [stdout]   |
[INFO] [stdout] 6 | use io::{BufWriter, Seek, SeekFrom, Read, Cursor, Write};
[INFO] [stdout]   |                                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `orig_size`
[INFO] [stdout]    --> src/main.rs:104:6
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let orig_size = buf_reader.seek(SeekFrom::End(0))?;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_orig_size`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `unpadded_size` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:106:10
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let mut unpadded_size = 0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_unpadded_size` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `decompressed_size` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:107:10
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let mut decompressed_size = 0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_decompressed_size` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delta`
[INFO] [stdout]   --> src/integertransformers.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let delta = *v;
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_delta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sector_count`
[INFO] [stdout]   --> src/main.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 32 |     sector_count: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `ChunkPosition` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[derive(Debug, Copy, Clone)]
[INFO] [stdout]    |          ^^^^^        ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `color`
[INFO] [stdout]   --> src/main.rs:37:2
[INFO] [stdout]    |
[INFO] [stdout] 37 |     color: [u8; 3],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `PaletteValue` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nbt`
[INFO] [stdout]   --> src/main.rs:38:2
[INFO] [stdout]    |
[INFO] [stdout] 38 |     nbt: Value,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `PaletteValue` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PackedIntegers`
[INFO] [stdout]   --> src/integercoders.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct PackedIntegers; // TODO
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Simple16`
[INFO] [stdout]   --> src/integercoders.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Simple16; // TODO
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `miniworld` due to 2 previous errors; 15 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "dc6edc0781b8a5e14b7a9241ce3bef6742584cbbc90f15cb5f619906e22326d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc6edc0781b8a5e14b7a9241ce3bef6742584cbbc90f15cb5f619906e22326d6", kill_on_drop: false }`
[INFO] [stdout] dc6edc0781b8a5e14b7a9241ce3bef6742584cbbc90f15cb5f619906e22326d6