[INFO] cloning repository https://github.com/willemolding/serde-bin-prot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/willemolding/serde-bin-prot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillemolding%2Fserde-bin-prot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillemolding%2Fserde-bin-prot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 41e800f7dd2262ecfe30559a2c8f495306c68cbd
[INFO] checking willemolding/serde-bin-prot against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillemolding%2Fserde-bin-prot" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/willemolding/serde-bin-prot on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/willemolding/serde-bin-prot
[INFO] finished tweaking git repo https://github.com/willemolding/serde-bin-prot
[INFO] tweaked toml for git repo https://github.com/willemolding/serde-bin-prot written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/willemolding/serde-bin-prot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0b55ea87e7a55e25f2782a1483b1cd0a5eecf499f808ddff6fe12b229cd9d76
[INFO] running `Command { std: "docker" "start" "-a" "f0b55ea87e7a55e25f2782a1483b1cd0a5eecf499f808ddff6fe12b229cd9d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0b55ea87e7a55e25f2782a1483b1cd0a5eecf499f808ddff6fe12b229cd9d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0b55ea87e7a55e25f2782a1483b1cd0a5eecf499f808ddff6fe12b229cd9d76", kill_on_drop: false }`
[INFO] [stdout] f0b55ea87e7a55e25f2782a1483b1cd0a5eecf499f808ddff6fe12b229cd9d76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6814c8342fe68ab832e2cf20ba72b01a1ee0b10954e2710a742cce3a01de8e5
[INFO] running `Command { std: "docker" "start" "-a" "e6814c8342fe68ab832e2cf20ba72b01a1ee0b10954e2710a742cce3a01de8e5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking serde-bin-prot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `roundtrip_test`
[INFO] [stdout]   --> tests/common.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn roundtrip_test<'a, T: Serialize + Deserialize<'a> + PartialEq + Debug>(val: T) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> tests/common.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(input: T, expected: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> tests/common.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(input: T, expected: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> tests/common.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(input: T, expected: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `roundtrip_test`
[INFO] [stdout]   --> tests/common.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn roundtrip_test<'a, T: Serialize + Deserialize<'a> + PartialEq + Debug>(val: T) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c0`
[INFO] [stdout]   --> tests/struct.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let c0 = C {
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_c0`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TestC`
[INFO] [stdout]   --> tests/struct.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     TestC(C),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> tests/common.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(input: T, expected: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.47s
[INFO] running `Command { std: "docker" "inspect" "e6814c8342fe68ab832e2cf20ba72b01a1ee0b10954e2710a742cce3a01de8e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6814c8342fe68ab832e2cf20ba72b01a1ee0b10954e2710a742cce3a01de8e5", kill_on_drop: false }`
[INFO] [stdout] e6814c8342fe68ab832e2cf20ba72b01a1ee0b10954e2710a742cce3a01de8e5