[INFO] cloning repository https://github.com/PurpleMyst/lazyminer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PurpleMyst/lazyminer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPurpleMyst%2Flazyminer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPurpleMyst%2Flazyminer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3bc1514dfd4f7ccc8ce270e9d8c9a684eb22305e
[INFO] checking PurpleMyst/lazyminer against master#029c9e18dd1f4668e1d42bb187c1c263dfe20093 for pr-157562
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPurpleMyst%2Flazyminer" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/PurpleMyst/lazyminer
[INFO] finished tweaking git repo https://github.com/PurpleMyst/lazyminer
[INFO] tweaked toml for git repo https://github.com/PurpleMyst/lazyminer written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/PurpleMyst/lazyminer on toolchain 029c9e18dd1f4668e1d42bb187c1c263dfe20093
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+029c9e18dd1f4668e1d42bb187c1c263dfe20093" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/PurpleMyst/lazyminer 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" "+029c9e18dd1f4668e1d42bb187c1c263dfe20093" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wait-timeout v0.2.0
[INFO] [stderr]   Downloaded tempfile v3.0.9
[INFO] [stderr]   Downloaded rusty-fork v0.2.2
[INFO] [stderr]   Downloaded proptest v0.9.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d3d60440bc627152274419b9d4f6b02c3a7cdb840e1c0b54f320560f3186a695
[INFO] running `Command { std: "docker" "start" "d3d60440bc627152274419b9d4f6b02c3a7cdb840e1c0b54f320560f3186a695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d3d60440bc627152274419b9d4f6b02c3a7cdb840e1c0b54f320560f3186a695" "/opt/rustwide/cargo-home/bin/cargo" "+029c9e18dd1f4668e1d42bb187c1c263dfe20093" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3d60440bc627152274419b9d4f6b02c3a7cdb840e1c0b54f320560f3186a695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d3d60440bc627152274419b9d4f6b02c3a7cdb840e1c0b54f320560f3186a695" "/opt/rustwide/cargo-home/bin/cargo" "+029c9e18dd1f4668e1d42bb187c1c263dfe20093" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking tempfile v3.0.9
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.9.4
[INFO] [stderr]     Checking mcserver v0.1.0 (/opt/rustwide/workdir/mcserver)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> mcserver/src/objs/position.rs:38:10
[INFO] [stdout]    |
[INFO] [stdout] 38 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `position::Position`
[INFO] [stdout]  --> mcserver/src/objs/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use position::Position;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VarLong`
[INFO] [stdout]  --> mcserver/src/objs/mod.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use varint::{VarInt, VarLong};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Position` is never constructed
[INFO] [stdout]  --> mcserver/src/objs/position.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Position {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VarLong` is never constructed
[INFO] [stdout]   --> mcserver/src/objs/varint.rs:73:33
[INFO] [stdout]    |
[INFO] [stdout] 73 | coder_varint_impl!(VarInt: i32, VarLong: i64);
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `coder_varint_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `never_type` is declared but not used
[INFO] [stdout]  --> mcserver/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> mcserver/src/objs/position.rs:38:10
[INFO] [stdout]    |
[INFO] [stdout] 38 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `never_type` is declared but not used
[INFO] [stdout]  --> mcserver/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.02s
[INFO] running `Command { std: "docker" "inspect" "d3d60440bc627152274419b9d4f6b02c3a7cdb840e1c0b54f320560f3186a695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d60440bc627152274419b9d4f6b02c3a7cdb840e1c0b54f320560f3186a695", kill_on_drop: false }`
[INFO] [stdout] d3d60440bc627152274419b9d4f6b02c3a7cdb840e1c0b54f320560f3186a695