[INFO] cloning repository https://github.com/kregerl/nbt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kregerl/nbt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkregerl%2Fnbt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkregerl%2Fnbt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 982c47172414e21df7dcdfcf6d4e0e4c52f0149c
[INFO] testing kregerl/nbt against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkregerl%2Fnbt" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kregerl/nbt on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kregerl/nbt
[INFO] finished tweaking git repo https://github.com/kregerl/nbt
[INFO] tweaked toml for git repo https://github.com/kregerl/nbt written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kregerl/nbt 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f2c075fbcdbc34f4b9595139f6afbc92128b68e277651b024df013333ade1b1
[INFO] running `Command { std: "docker" "start" "-a" "6f2c075fbcdbc34f4b9595139f6afbc92128b68e277651b024df013333ade1b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f2c075fbcdbc34f4b9595139f6afbc92128b68e277651b024df013333ade1b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f2c075fbcdbc34f4b9595139f6afbc92128b68e277651b024df013333ade1b1", kill_on_drop: false }`
[INFO] [stdout] 6f2c075fbcdbc34f4b9595139f6afbc92128b68e277651b024df013333ade1b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dda024a29b29d56a0b6b23344cc91ff0eb3a6511b0fe594ec368908f9f8cd3c
[INFO] running `Command { std: "docker" "start" "-a" "6dda024a29b29d56a0b6b23344cc91ff0eb3a6511b0fe594ec368908f9f8cd3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling flate2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling nbt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/debug.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, BTreeMap},
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/debug.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum NBTPayload {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 14 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     Byte(i8),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     Short(i16),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     Int(i32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 18 |     Long(i64),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 19 |     Float(f32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Double(f64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 21 |     ByteArray(Vec<i8>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 22 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 23 |     List(Vec<NBTPayload>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     Compound(BTreeMap<String, NBTPayload>),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 25 |     IntArray(Vec<i32>),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     LongArray(Vec<i64>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NBTPayload` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `name`, and `payload` are never read
[INFO] [stdout]   --> src/debug.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct NBTTag {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 31 |     kind: NBTKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 33 |     payload: NBTPayload,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NBTTag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/debug.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl NBTTag {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 37 |     fn new(kind: NBTKind, name: Option<String>, payload: NBTPayload) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_nbt` is never used
[INFO] [stdout]   --> src/debug.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn dump_nbt(filename: &str) -> error::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_nbt_from_bytes` is never used
[INFO] [stdout]   --> src/debug.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn dump_nbt_from_bytes(bytes: Vec<u8>) -> error::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor` is never read
[INFO] [stdout]   --> src/debug.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct NBTReader {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 72 |     cursor: Cursor<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GZIP_SIGNATURE` is never used
[INFO] [stdout]   --> src/debug.rs:83:7
[INFO] [stdout]    |
[INFO] [stdout] 83 | const GZIP_SIGNATURE: [u8; 2] = [0x1f, 0x8b];
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `has_bytes_left`, `parse_nbt`, `parse_array`, `parse_nbt_payload`, and `parse_nbt_tag` are never used
[INFO] [stdout]    --> src/debug.rs:85:8
[INFO] [stdout]     |
[INFO] [stdout] 84  | impl NBTReader {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 85  |     fn new(filename: &str) -> io::Result<Self> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn has_bytes_left(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn parse_nbt(&mut self) -> Option<NBTTag> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     fn parse_array<T>(
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     fn parse_nbt_payload(&mut self, kind: &NBTKind) -> io::Result<NBTPayload> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     fn parse_nbt_tag(&mut self) -> io::Result<NBTTag> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serialize_array` is never used
[INFO] [stdout]    --> src/ser.rs:646:4
[INFO] [stdout]     |
[INFO] [stdout] 646 | fn serialize_array<T, S>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.37s
[INFO] running `Command { std: "docker" "inspect" "6dda024a29b29d56a0b6b23344cc91ff0eb3a6511b0fe594ec368908f9f8cd3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dda024a29b29d56a0b6b23344cc91ff0eb3a6511b0fe594ec368908f9f8cd3c", kill_on_drop: false }`
[INFO] [stdout] 6dda024a29b29d56a0b6b23344cc91ff0eb3a6511b0fe594ec368908f9f8cd3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 778a49b2a7071c6c8ed120bb6e453baf27110909b8a99f71ddd9ac6925430d9f
[INFO] running `Command { std: "docker" "start" "-a" "778a49b2a7071c6c8ed120bb6e453baf27110909b8a99f71ddd9ac6925430d9f", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/debug.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, BTreeMap},
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/debug.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum NBTPayload {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 14 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     Byte(i8),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     Short(i16),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     Int(i32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 18 |     Long(i64),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 19 |     Float(f32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Double(f64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 21 |     ByteArray(Vec<i8>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 22 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 23 |     List(Vec<NBTPayload>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     Compound(BTreeMap<String, NBTPayload>),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 25 |     IntArray(Vec<i32>),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     LongArray(Vec<i64>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NBTPayload` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `name`, and `payload` are never read
[INFO] [stdout]   --> src/debug.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct NBTTag {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 31 |     kind: NBTKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 33 |     payload: NBTPayload,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NBTTag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/debug.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl NBTTag {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 37 |     fn new(kind: NBTKind, name: Option<String>, payload: NBTPayload) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_nbt` is never used
[INFO] [stdout]   --> src/debug.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn dump_nbt(filename: &str) -> error::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_nbt_from_bytes` is never used
[INFO] [stdout]   --> src/debug.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn dump_nbt_from_bytes(bytes: Vec<u8>) -> error::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor` is never read
[INFO] [stdout]   --> src/debug.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct NBTReader {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 72 |     cursor: Cursor<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GZIP_SIGNATURE` is never used
[INFO] [stdout]   --> src/debug.rs:83:7
[INFO] [stdout]    |
[INFO] [stdout] 83 | const GZIP_SIGNATURE: [u8; 2] = [0x1f, 0x8b];
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `has_bytes_left`, `parse_nbt`, `parse_array`, `parse_nbt_payload`, and `parse_nbt_tag` are never used
[INFO] [stdout]    --> src/debug.rs:85:8
[INFO] [stdout]     |
[INFO] [stdout] 84  | impl NBTReader {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 85  |     fn new(filename: &str) -> io::Result<Self> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn has_bytes_left(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn parse_nbt(&mut self) -> Option<NBTTag> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     fn parse_array<T>(
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     fn parse_nbt_payload(&mut self, kind: &NBTKind) -> io::Result<NBTPayload> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     fn parse_nbt_tag(&mut self) -> io::Result<NBTTag> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nbt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `serialize_array` is never used
[INFO] [stdout]    --> src/ser.rs:646:4
[INFO] [stdout]     |
[INFO] [stdout] 646 | fn serialize_array<T, S>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/debug.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, BTreeMap},
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_nbt_from_bytes` is never used
[INFO] [stdout]   --> src/debug.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn dump_nbt_from_bytes(bytes: Vec<u8>) -> error::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serialize_array` is never used
[INFO] [stdout]    --> src/ser.rs:646:4
[INFO] [stdout]     |
[INFO] [stdout] 646 | fn serialize_array<T, S>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "778a49b2a7071c6c8ed120bb6e453baf27110909b8a99f71ddd9ac6925430d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "778a49b2a7071c6c8ed120bb6e453baf27110909b8a99f71ddd9ac6925430d9f", kill_on_drop: false }`
[INFO] [stdout] 778a49b2a7071c6c8ed120bb6e453baf27110909b8a99f71ddd9ac6925430d9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 91566ec5b27eb4f542eee9005de30b00dadc6577c192499f0f5e8ca789be3963
[INFO] running `Command { std: "docker" "start" "-a" "91566ec5b27eb4f542eee9005de30b00dadc6577c192499f0f5e8ca789be3963", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/debug.rs:2:19
[INFO] [stderr]   |
[INFO] [stderr] 2 |     collections::{HashMap, BTreeMap},
[INFO] [stderr]   |                   ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple variants are never constructed
[INFO] [stderr]   --> src/debug.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | enum NBTPayload {
[INFO] [stderr]    |      ---------- variants in this enum
[INFO] [stderr] 14 |     Empty,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 15 |     Byte(i8),
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 16 |     Short(i16),
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 17 |     Int(i32),
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 18 |     Long(i64),
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 19 |     Float(f32),
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 20 |     Double(f64),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 21 |     ByteArray(Vec<i8>),
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 22 |     String(String),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 23 |     List(Vec<NBTPayload>),
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 24 |     Compound(BTreeMap<String, NBTPayload>),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 25 |     IntArray(Vec<i32>),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 26 |     LongArray(Vec<i64>),
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `NBTPayload` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `kind`, `name`, and `payload` are never read
[INFO] [stderr]   --> src/debug.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | struct NBTTag {
[INFO] [stderr]    |        ------ fields in this struct
[INFO] [stderr] 31 |     kind: NBTKind,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 32 |     name: Option<String>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 33 |     payload: NBTPayload,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `NBTTag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/debug.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | impl NBTTag {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 37 |     fn new(kind: NBTKind, name: Option<String>, payload: NBTPayload) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dump_nbt` is never used
[INFO] [stderr]   --> src/debug.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn dump_nbt(filename: &str) -> error::Result<()> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dump_nbt_from_bytes` is never used
[INFO] [stderr]   --> src/debug.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn dump_nbt_from_bytes(bytes: Vec<u8>) -> error::Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `cursor` is never read
[INFO] [stderr]   --> src/debug.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 71 | struct NBTReader {
[INFO] [stderr]    |        --------- field in this struct
[INFO] [stderr] 72 |     cursor: Cursor<Vec<u8>>,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `GZIP_SIGNATURE` is never used
[INFO] [stderr]   --> src/debug.rs:83:7
[INFO] [stderr]    |
[INFO] [stderr] 83 | const GZIP_SIGNATURE: [u8; 2] = [0x1f, 0x8b];
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `has_bytes_left`, `parse_nbt`, `parse_array`, `parse_nbt_payload`, and `parse_nbt_tag` are never used
[INFO] [stderr]    --> src/debug.rs:85:8
[INFO] [stderr]     |
[INFO] [stderr] 84  | impl NBTReader {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 85  |     fn new(filename: &str) -> io::Result<Self> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 101 |     fn has_bytes_left(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |     fn parse_nbt(&mut self) -> Option<NBTTag> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 118 |     fn parse_array<T>(
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 130 |     fn parse_nbt_payload(&mut self, kind: &NBTKind) -> io::Result<NBTPayload> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 202 |     fn parse_nbt_tag(&mut self) -> io::Result<NBTTag> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `serialize_array` is never used
[INFO] [stderr]    --> src/ser.rs:646:4
[INFO] [stderr]     |
[INFO] [stderr] 646 | fn serialize_array<T, S>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dump_nbt_from_bytes` is never used
[INFO] [stderr]   --> src/debug.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn dump_nbt_from_bytes(bytes: Vec<u8>) -> error::Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nbt` (lib) generated 10 warnings (run `cargo fix --lib -p nbt` to apply 1 suggestion)
[INFO] [stderr] warning: `nbt` (lib test) generated 3 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nbt-5b081229e05f6254)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test ser::test_write ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- ser::test_write stdout ----
[INFO] [stdout] thread 'ser::test_write' panicked at src/ser.rs:32:41:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56417ffd843c - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x56417ffd843c - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x56417ffd843c - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x56417ffd843c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x564180002f80 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x564180002f80 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x56417ffd5def - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x56417ffd8224 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x56417ffd8224 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x56417ffd9ee7 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x56417ffd9bd3 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x56417ff8ecf7 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0ad024c9bdc6d768
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   12:     0x56417ff8ecf7 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x56417ffda4f8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1f8f335eaa9cfaee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   14:     0x56417ffda4f8 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x56417ffda24e - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x56417ffd8906 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   17:     0x56417ffd9fb2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x56417ff3b145 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x56417ff3b6d3 - core::result::unwrap_failed::hddb4fea594200c52
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1653:5
[INFO] [stdout]   20:     0x56417ff4fd4b - core::result::Result<T,E>::unwrap::hb2f2ed403c6b35d5
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1077:23
[INFO] [stdout]   21:     0x56417ff5a718 - nbt::ser::test_write::h95a99e90b0955034
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ser.rs:32:16
[INFO] [stdout]   22:     0x56417ff5a6c7 - nbt::ser::test_write::{{closure}}::hb30621eccc02a0a4
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ser.rs:18:16
[INFO] [stdout]   23:     0x56417ff54a16 - core::ops::function::FnOnce::call_once::hb1977bc8bb483e02
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x56417ff9434f - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x56417ff9434f - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   26:     0x56417ff93365 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   27:     0x56417ff93365 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h76c106ea31c14d7b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x56417ff93365 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   29:     0x56417ff93365 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   30:     0x56417ff93365 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x56417ff93365 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   32:     0x56417ff93365 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   33:     0x56417ff5b626 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   34:     0x56417ff5b626 - std::sys_common::backtrace::__rust_begin_short_backtrace::he6df152596625789
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   35:     0x56417ff606d7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   36:     0x56417ff606d7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9dc6bd6372f16606
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x56417ff606d7 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   38:     0x56417ff606d7 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   39:     0x56417ff606d7 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x56417ff606d7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   41:     0x56417ff606d7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x56417ffdef85 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7eafaff61e32df9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   43:     0x56417ffdef85 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ba4a5de48dd2304
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   44:     0x56417ffdef85 - std::sys::unix::thread::Thread::new::thread_start::he469335aef763e45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7fc392b7bac3 - <unknown>
[INFO] [stdout]   46:     0x7fc392c0cbf4 - __clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     ser::test_write
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "91566ec5b27eb4f542eee9005de30b00dadc6577c192499f0f5e8ca789be3963", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91566ec5b27eb4f542eee9005de30b00dadc6577c192499f0f5e8ca789be3963", kill_on_drop: false }`
[INFO] [stdout] 91566ec5b27eb4f542eee9005de30b00dadc6577c192499f0f5e8ca789be3963
[INFO] testing kregerl/nbt against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkregerl%2Fnbt" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kregerl/nbt on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kregerl/nbt
[INFO] finished tweaking git repo https://github.com/kregerl/nbt
[INFO] tweaked toml for git repo https://github.com/kregerl/nbt written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kregerl/nbt 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce4e0dfc95ba839e417dcd0d722fce507c537723fc75a3cedceebecf73acdf75
[INFO] running `Command { std: "docker" "start" "-a" "ce4e0dfc95ba839e417dcd0d722fce507c537723fc75a3cedceebecf73acdf75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce4e0dfc95ba839e417dcd0d722fce507c537723fc75a3cedceebecf73acdf75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce4e0dfc95ba839e417dcd0d722fce507c537723fc75a3cedceebecf73acdf75", kill_on_drop: false }`
[INFO] [stdout] ce4e0dfc95ba839e417dcd0d722fce507c537723fc75a3cedceebecf73acdf75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71ecc695d45e9f2f871edd269eadc071c5333d0b6d8613bb020e8cee77f38541
[INFO] running `Command { std: "docker" "start" "-a" "71ecc695d45e9f2f871edd269eadc071c5333d0b6d8613bb020e8cee77f38541", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling flate2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling nbt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/debug.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, BTreeMap},
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/debug.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum NBTPayload {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 14 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     Byte(i8),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     Short(i16),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     Int(i32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 18 |     Long(i64),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 19 |     Float(f32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Double(f64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 21 |     ByteArray(Vec<i8>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 22 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 23 |     List(Vec<NBTPayload>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     Compound(BTreeMap<String, NBTPayload>),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 25 |     IntArray(Vec<i32>),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     LongArray(Vec<i64>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NBTPayload` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `name`, and `payload` are never read
[INFO] [stdout]   --> src/debug.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct NBTTag {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 31 |     kind: NBTKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 33 |     payload: NBTPayload,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NBTTag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/debug.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl NBTTag {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 37 |     fn new(kind: NBTKind, name: Option<String>, payload: NBTPayload) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_nbt` is never used
[INFO] [stdout]   --> src/debug.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn dump_nbt(filename: &str) -> error::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_nbt_from_bytes` is never used
[INFO] [stdout]   --> src/debug.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn dump_nbt_from_bytes(bytes: Vec<u8>) -> error::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor` is never read
[INFO] [stdout]   --> src/debug.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct NBTReader {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 72 |     cursor: Cursor<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GZIP_SIGNATURE` is never used
[INFO] [stdout]   --> src/debug.rs:83:7
[INFO] [stdout]    |
[INFO] [stdout] 83 | const GZIP_SIGNATURE: [u8; 2] = [0x1f, 0x8b];
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `has_bytes_left`, `parse_nbt`, `parse_array`, `parse_nbt_payload`, and `parse_nbt_tag` are never used
[INFO] [stdout]    --> src/debug.rs:85:8
[INFO] [stdout]     |
[INFO] [stdout] 84  | impl NBTReader {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 85  |     fn new(filename: &str) -> io::Result<Self> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn has_bytes_left(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn parse_nbt(&mut self) -> Option<NBTTag> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     fn parse_array<T>(
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     fn parse_nbt_payload(&mut self, kind: &NBTKind) -> io::Result<NBTPayload> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     fn parse_nbt_tag(&mut self) -> io::Result<NBTTag> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serialize_array` is never used
[INFO] [stdout]    --> src/ser.rs:646:4
[INFO] [stdout]     |
[INFO] [stdout] 646 | fn serialize_array<T, S>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.18s
[INFO] running `Command { std: "docker" "inspect" "71ecc695d45e9f2f871edd269eadc071c5333d0b6d8613bb020e8cee77f38541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ecc695d45e9f2f871edd269eadc071c5333d0b6d8613bb020e8cee77f38541", kill_on_drop: false }`
[INFO] [stdout] 71ecc695d45e9f2f871edd269eadc071c5333d0b6d8613bb020e8cee77f38541
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34dd53963811d83543e923fa657f1e73d3209a64a8a5e332625d071d47a9f21c
[INFO] running `Command { std: "docker" "start" "-a" "34dd53963811d83543e923fa657f1e73d3209a64a8a5e332625d071d47a9f21c", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/debug.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, BTreeMap},
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/debug.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum NBTPayload {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 14 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     Byte(i8),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     Short(i16),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     Int(i32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 18 |     Long(i64),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 19 |     Float(f32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Double(f64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 21 |     ByteArray(Vec<i8>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 22 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 23 |     List(Vec<NBTPayload>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     Compound(BTreeMap<String, NBTPayload>),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 25 |     IntArray(Vec<i32>),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     LongArray(Vec<i64>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NBTPayload` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `name`, and `payload` are never read
[INFO] [stdout]   --> src/debug.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct NBTTag {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 31 |     kind: NBTKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 33 |     payload: NBTPayload,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NBTTag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/debug.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl NBTTag {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 37 |     fn new(kind: NBTKind, name: Option<String>, payload: NBTPayload) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_nbt` is never used
[INFO] [stdout]   --> src/debug.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn dump_nbt(filename: &str) -> error::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_nbt_from_bytes` is never used
[INFO] [stdout]   --> src/debug.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn dump_nbt_from_bytes(bytes: Vec<u8>) -> error::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor` is never read
[INFO] [stdout]   --> src/debug.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct NBTReader {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 72 |     cursor: Cursor<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nbt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `GZIP_SIGNATURE` is never used
[INFO] [stdout]   --> src/debug.rs:83:7
[INFO] [stdout]    |
[INFO] [stdout] 83 | const GZIP_SIGNATURE: [u8; 2] = [0x1f, 0x8b];
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `has_bytes_left`, `parse_nbt`, `parse_array`, `parse_nbt_payload`, and `parse_nbt_tag` are never used
[INFO] [stdout]    --> src/debug.rs:85:8
[INFO] [stdout]     |
[INFO] [stdout] 84  | impl NBTReader {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 85  |     fn new(filename: &str) -> io::Result<Self> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn has_bytes_left(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn parse_nbt(&mut self) -> Option<NBTTag> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     fn parse_array<T>(
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     fn parse_nbt_payload(&mut self, kind: &NBTKind) -> io::Result<NBTPayload> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     fn parse_nbt_tag(&mut self) -> io::Result<NBTTag> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serialize_array` is never used
[INFO] [stdout]    --> src/ser.rs:646:4
[INFO] [stdout]     |
[INFO] [stdout] 646 | fn serialize_array<T, S>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/debug.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, BTreeMap},
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_nbt_from_bytes` is never used
[INFO] [stdout]   --> src/debug.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn dump_nbt_from_bytes(bytes: Vec<u8>) -> error::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serialize_array` is never used
[INFO] [stdout]    --> src/ser.rs:646:4
[INFO] [stdout]     |
[INFO] [stdout] 646 | fn serialize_array<T, S>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "34dd53963811d83543e923fa657f1e73d3209a64a8a5e332625d071d47a9f21c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34dd53963811d83543e923fa657f1e73d3209a64a8a5e332625d071d47a9f21c", kill_on_drop: false }`
[INFO] [stdout] 34dd53963811d83543e923fa657f1e73d3209a64a8a5e332625d071d47a9f21c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7a94fa0fa8c445f20c6a897042490272ac1afa5d86e2599fb23a2448c68252a6
[INFO] running `Command { std: "docker" "start" "-a" "7a94fa0fa8c445f20c6a897042490272ac1afa5d86e2599fb23a2448c68252a6", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/debug.rs:2:19
[INFO] [stderr]   |
[INFO] [stderr] 2 |     collections::{HashMap, BTreeMap},
[INFO] [stderr]   |                   ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple variants are never constructed
[INFO] [stderr]   --> src/debug.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | enum NBTPayload {
[INFO] [stderr]    |      ---------- variants in this enum
[INFO] [stderr] 14 |     Empty,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 15 |     Byte(i8),
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 16 |     Short(i16),
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 17 |     Int(i32),
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 18 |     Long(i64),
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 19 |     Float(f32),
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 20 |     Double(f64),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 21 |     ByteArray(Vec<i8>),
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 22 |     String(String),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 23 |     List(Vec<NBTPayload>),
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 24 |     Compound(BTreeMap<String, NBTPayload>),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 25 |     IntArray(Vec<i32>),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 26 |     LongArray(Vec<i64>),
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `NBTPayload` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `kind`, `name`, and `payload` are never read
[INFO] [stderr]   --> src/debug.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | struct NBTTag {
[INFO] [stderr]    |        ------ fields in this struct
[INFO] [stderr] 31 |     kind: NBTKind,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 32 |     name: Option<String>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 33 |     payload: NBTPayload,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `NBTTag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/debug.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | impl NBTTag {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 37 |     fn new(kind: NBTKind, name: Option<String>, payload: NBTPayload) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dump_nbt` is never used
[INFO] [stderr]   --> src/debug.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn dump_nbt(filename: &str) -> error::Result<()> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dump_nbt_from_bytes` is never used
[INFO] [stderr]   --> src/debug.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn dump_nbt_from_bytes(bytes: Vec<u8>) -> error::Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `cursor` is never read
[INFO] [stderr]   --> src/debug.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 71 | struct NBTReader {
[INFO] [stderr]    |        --------- field in this struct
[INFO] [stderr] 72 |     cursor: Cursor<Vec<u8>>,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `GZIP_SIGNATURE` is never used
[INFO] [stderr]   --> src/debug.rs:83:7
[INFO] [stderr]    |
[INFO] [stderr] 83 | const GZIP_SIGNATURE: [u8; 2] = [0x1f, 0x8b];
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `has_bytes_left`, `parse_nbt`, `parse_array`, `parse_nbt_payload`, and `parse_nbt_tag` are never used
[INFO] [stderr]    --> src/debug.rs:85:8
[INFO] [stderr]     |
[INFO] [stderr] 84  | impl NBTReader {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 85  |     fn new(filename: &str) -> io::Result<Self> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 101 |     fn has_bytes_left(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |     fn parse_nbt(&mut self) -> Option<NBTTag> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 118 |     fn parse_array<T>(
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 130 |     fn parse_nbt_payload(&mut self, kind: &NBTKind) -> io::Result<NBTPayload> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 202 |     fn parse_nbt_tag(&mut self) -> io::Result<NBTTag> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `serialize_array` is never used
[INFO] [stderr]    --> src/ser.rs:646:4
[INFO] [stderr]     |
[INFO] [stderr] 646 | fn serialize_array<T, S>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dump_nbt_from_bytes` is never used
[INFO] [stderr]   --> src/debug.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn dump_nbt_from_bytes(bytes: Vec<u8>) -> error::Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nbt` (lib) generated 10 warnings (run `cargo fix --lib -p nbt` to apply 1 suggestion)
[INFO] [stderr] warning: `nbt` (lib test) generated 3 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nbt-0ecbf1f05b788cfb)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test ser::test_write ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- ser::test_write stdout ----
[INFO] [stdout] thread 'ser::test_write' panicked at src/ser.rs:32:41:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x556dce6c6ae6 - std::backtrace_rs::backtrace::libunwind::trace::h261606ad26a499c1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x556dce6c6ae6 - std::backtrace_rs::backtrace::trace_unsynchronized::hd183f0625477fb28
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x556dce6c6ae6 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x556dce6c6ae6 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h623d9b51f2f453f1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x556dce6f0920 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x556dce6f0920 - core::fmt::write::hc9b6faf4ac2aeff7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x556dce6c454f - std::io::Write::write_fmt::he04625a3a989fec3
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x556dce6c68c4 - std::sys_common::backtrace::_print::hd5d66399c7df88a2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x556dce6c68c4 - std::sys_common::backtrace::print::he81ed2da642d37e5
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x556dce6c8637 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d
[INFO] [stdout]   10:     0x556dce6c831d - std::panicking::default_hook::h6a1694a91d09b278
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x556dce67d0d7 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h616ac37fa3cd6c8f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   12:     0x556dce67d0d7 - test::test_main::{{closure}}::h00d84697cefdcbb6
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x556dce6c8c56 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcb3fe3b9bb537ba8
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   14:     0x556dce6c8c56 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x556dce6c89a2 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x556dce6c6fe6 - std::sys_common::backtrace::__rust_end_short_backtrace::hf3289479464f7dfe
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x556dce6c8700 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x556dce628125 - core::panicking::panic_fmt::hcc9f77c5c132af55
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x556dce6286c3 - core::result::unwrap_failed::hbe14f498be1452f9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1649:5
[INFO] [stdout]   20:     0x556dce64429b - core::result::Result<T,E>::unwrap::hb440792315171d90
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1073:23
[INFO] [stdout]   21:     0x556dce63af38 - nbt::ser::test_write::hbf5d1909df5b4888
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ser.rs:32:16
[INFO] [stdout]   22:     0x556dce63aee7 - nbt::ser::test_write::{{closure}}::h8661cfced6f1441f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ser.rs:18:16
[INFO] [stdout]   23:     0x556dce6430e6 - core::ops::function::FnOnce::call_once::hb1dac9e0b9faaf80
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x556dce6829af - core::ops::function::FnOnce::call_once::hd64d26f405258157
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x556dce6829af - test::__rust_begin_short_backtrace::he21b0b7a6d731bf9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18
[INFO] [stdout]   26:     0x556dce681731 - test::run_test_in_process::{{closure}}::hf5c73986d7bdfde2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60
[INFO] [stdout]   27:     0x556dce681731 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330011ad032aadc0
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x556dce681731 - std::panicking::try::do_call::he61b0a958b795a41
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   29:     0x556dce681731 - std::panicking::try::h7309da130f906eb7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   30:     0x556dce681731 - std::panic::catch_unwind::hc5c3a06fdaf0a92a
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x556dce681731 - test::run_test_in_process::h7e7b7c71c3324e0f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27
[INFO] [stdout]   32:     0x556dce681731 - test::run_test::{{closure}}::h1f509f28f5cf20b1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43
[INFO] [stdout]   33:     0x556dce648a66 - test::run_test::{{closure}}::h1754218abf443f6d
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41
[INFO] [stdout]   34:     0x556dce648a66 - std::sys_common::backtrace::__rust_begin_short_backtrace::h2ee174b9d5954948
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   35:     0x556dce64dac7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf60bee9c1a17ef09
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   36:     0x556dce64dac7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h33d0dddec5216160
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x556dce64dac7 - std::panicking::try::do_call::h144b3048b546f835
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   38:     0x556dce64dac7 - std::panicking::try::h978244d04646189f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   39:     0x556dce64dac7 - std::panic::catch_unwind::hdf436369d188fe86
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x556dce64dac7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h87329cbdd33c79ec
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   41:     0x556dce64dac7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h401abbe67897d450
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x556dce6cd705 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5d7c8f150ab9c84c
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   43:     0x556dce6cd705 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h570d5b005c242c15
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   44:     0x556dce6cd705 - std::sys::unix::thread::Thread::new::thread_start::h36b0a20c0b2361ad
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7f8d23cedac3 - <unknown>
[INFO] [stdout]   46:     0x7f8d23d7ebf4 - __clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     ser::test_write
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "7a94fa0fa8c445f20c6a897042490272ac1afa5d86e2599fb23a2448c68252a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a94fa0fa8c445f20c6a897042490272ac1afa5d86e2599fb23a2448c68252a6", kill_on_drop: false }`
[INFO] [stdout] 7a94fa0fa8c445f20c6a897042490272ac1afa5d86e2599fb23a2448c68252a6
