[INFO] cloning repository https://github.com/accusitive/rmc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/accusitive/rmc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faccusitive%2Frmc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faccusitive%2Frmc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e87e3238382b6fe7d4f656c2fc1041137a621332
[INFO] testing accusitive/rmc against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faccusitive%2Frmc" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/accusitive/rmc on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/accusitive/rmc
[INFO] finished tweaking git repo https://github.com/accusitive/rmc
[INFO] tweaked toml for git repo https://github.com/accusitive/rmc written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/accusitive/rmc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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 minecraft-varint v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9769f146eb2f66a205ea159d24aeae1d47fe979f28c120cf535bc4953ce779e6
[INFO] running `Command { std: "docker" "start" "-a" "9769f146eb2f66a205ea159d24aeae1d47fe979f28c120cf535bc4953ce779e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9769f146eb2f66a205ea159d24aeae1d47fe979f28c120cf535bc4953ce779e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9769f146eb2f66a205ea159d24aeae1d47fe979f28c120cf535bc4953ce779e6", kill_on_drop: false }`
[INFO] [stdout] 9769f146eb2f66a205ea159d24aeae1d47fe979f28c120cf535bc4953ce779e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da4e8da8618bf93731f1c907e6bdaa3e5ec453018237c0870dc3b9e4300e55b6
[INFO] running `Command { std: "docker" "start" "-a" "da4e8da8618bf93731f1c907e6bdaa3e5ec453018237c0870dc3b9e4300e55b6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling minecraft-varint v0.1.1
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling rmc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ReadMCString`
[INFO] [stdout]  --> src/main.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use network::{Packet, ReadMCString};
[INFO] [stdout]   |                       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Write`
[INFO] [stdout]  --> src/network.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::TryInto, fmt::Write};
[INFO] [stdout]   |                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BigEndian`
[INFO] [stdout]  --> src/network.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ByteOrder`
[INFO] [stdout]  --> src/packets.rs:3:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | use byteorder::{BigEndian, ByteOrder, ReadBytesExt, WriteBytesExt};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket_addr`
[INFO] [stdout]   --> src/main.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |     for (mut stream, socket_addr) in socket.accept() {
[INFO] [stdout]    |                      ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/packets.rs:37:40
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn write<W: std::io::Write>(&self, s: &mut W) -> Option<()> {
[INFO] [stdout]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/packets.rs:51:40
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn write<W: std::io::Write>(&self, s: &mut W) -> Option<()> {
[INFO] [stdout]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/packets.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn read(s: &mut CursorType) -> Option<Self>
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/network.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         self.write_var_i32(s.to_string().len().try_into().unwrap());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.48s
[INFO] running `Command { std: "docker" "inspect" "da4e8da8618bf93731f1c907e6bdaa3e5ec453018237c0870dc3b9e4300e55b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da4e8da8618bf93731f1c907e6bdaa3e5ec453018237c0870dc3b9e4300e55b6", kill_on_drop: false }`
[INFO] [stdout] da4e8da8618bf93731f1c907e6bdaa3e5ec453018237c0870dc3b9e4300e55b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83d90a18b26b34333b1bee5ed939f892e78fb42402d01ae26cedca6baa3ce008
[INFO] running `Command { std: "docker" "start" "-a" "83d90a18b26b34333b1bee5ed939f892e78fb42402d01ae26cedca6baa3ce008", kill_on_drop: false }`
[INFO] [stderr]    Compiling rmc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ReadMCString`
[INFO] [stdout]  --> src/main.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use network::{Packet, ReadMCString};
[INFO] [stdout]   |                       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Write`
[INFO] [stdout]  --> src/network.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::TryInto, fmt::Write};
[INFO] [stdout]   |                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BigEndian`
[INFO] [stdout]  --> src/network.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ByteOrder`
[INFO] [stdout]  --> src/packets.rs:3:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | use byteorder::{BigEndian, ByteOrder, ReadBytesExt, WriteBytesExt};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket_addr`
[INFO] [stdout]   --> src/main.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |     for (mut stream, socket_addr) in socket.accept() {
[INFO] [stdout]    |                      ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/packets.rs:37:40
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn write<W: std::io::Write>(&self, s: &mut W) -> Option<()> {
[INFO] [stdout]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/packets.rs:51:40
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn write<W: std::io::Write>(&self, s: &mut W) -> Option<()> {
[INFO] [stdout]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/packets.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn read(s: &mut CursorType) -> Option<Self>
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/network.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         self.write_var_i32(s.to_string().len().try_into().unwrap());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "83d90a18b26b34333b1bee5ed939f892e78fb42402d01ae26cedca6baa3ce008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d90a18b26b34333b1bee5ed939f892e78fb42402d01ae26cedca6baa3ce008", kill_on_drop: false }`
[INFO] [stdout] 83d90a18b26b34333b1bee5ed939f892e78fb42402d01ae26cedca6baa3ce008
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ad2d02ba5fd57c1172c36eec15d48397377a3ca01679051030aa8624746ee178
[INFO] running `Command { std: "docker" "start" "-a" "ad2d02ba5fd57c1172c36eec15d48397377a3ca01679051030aa8624746ee178", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `ReadMCString`
[INFO] [stderr]  --> src/main.rs:2:23
[INFO] [stderr]   |
[INFO] [stderr] 2 | use network::{Packet, ReadMCString};
[INFO] [stderr]   |                       ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `fmt::Write`
[INFO] [stderr]  --> src/network.rs:1:29
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{convert::TryInto, fmt::Write};
[INFO] [stderr]   |                             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BigEndian`
[INFO] [stderr]  --> src/network.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
[INFO] [stderr]   |                 ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ByteOrder`
[INFO] [stderr]  --> src/packets.rs:3:28
[INFO] [stderr]   |
[INFO] [stderr] 3 | use byteorder::{BigEndian, ByteOrder, ReadBytesExt, WriteBytesExt};
[INFO] [stderr]   |                            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `socket_addr`
[INFO] [stderr]   --> src/main.rs:53:22
[INFO] [stderr]    |
[INFO] [stderr] 53 |     for (mut stream, socket_addr) in socket.accept() {
[INFO] [stderr]    |                      ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket_addr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/packets.rs:37:40
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn write<W: std::io::Write>(&self, s: &mut W) -> Option<()> {
[INFO] [stderr]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/packets.rs:51:40
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn write<W: std::io::Write>(&self, s: &mut W) -> Option<()> {
[INFO] [stderr]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/packets.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn read(s: &mut CursorType) -> Option<Self>
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/network.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         self.write_var_i32(s.to_string().len().try_into().unwrap());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `rmc` (bin "rmc" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rmc-904ffe56b0b6de68)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ad2d02ba5fd57c1172c36eec15d48397377a3ca01679051030aa8624746ee178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad2d02ba5fd57c1172c36eec15d48397377a3ca01679051030aa8624746ee178", kill_on_drop: false }`
[INFO] [stdout] ad2d02ba5fd57c1172c36eec15d48397377a3ca01679051030aa8624746ee178