[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] 23595bfed0b438b45eb07ee36f690da0b9b0dc8b
[INFO] checking willemolding/serde-bin-prot against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillemolding%2Fserde-bin-prot" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/willemolding/serde-bin-prot on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-13/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddaccd41f7bad3198ac0073af6b05239dfd9482ef17af6ba1589854938154db3
[INFO] running `Command { std: "docker" "start" "-a" "ddaccd41f7bad3198ac0073af6b05239dfd9482ef17af6ba1589854938154db3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddaccd41f7bad3198ac0073af6b05239dfd9482ef17af6ba1589854938154db3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddaccd41f7bad3198ac0073af6b05239dfd9482ef17af6ba1589854938154db3", kill_on_drop: false }`
[INFO] [stdout] ddaccd41f7bad3198ac0073af6b05239dfd9482ef17af6ba1589854938154db3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0423b2544498ce8d1814139b68c27e603c158897792e8b4248f7a371a8dc2da4
[INFO] running `Command { std: "docker" "start" "-a" "0423b2544498ce8d1814139b68c27e603c158897792e8b4248f7a371a8dc2da4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking regex v1.4.6
[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 serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[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: struct is never constructed: `Outer`
[INFO] [stdout]   --> tests/common.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub(crate) struct Outer {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Inner`
[INFO] [stdout]   --> tests/common.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) struct Inner {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Inner`, `Outer`
[INFO] [stdout]  --> tests/non_integers_repr.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::common::{BInner, Inner, Outer, A, B};
[INFO] [stdout]   |                             ^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Outer`
[INFO] [stdout]   --> tests/common.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub(crate) struct Outer {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Inner`
[INFO] [stdout]   --> tests/common.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) struct Inner {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Outer`
[INFO] [stdout]   --> tests/common.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub(crate) struct Outer {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Inner`
[INFO] [stdout]   --> tests/common.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) struct Inner {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Outer`
[INFO] [stdout]   --> tests/common.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub(crate) struct Outer {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Inner`
[INFO] [stdout]   --> tests/common.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) struct Inner {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `roundtrip_test`
[INFO] [stdout]   --> tests/common.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn roundtrip_test<'a, T: Serialize + Deserialize<'a> + PartialEq + Debug>(val: T) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Outer`
[INFO] [stdout]   --> tests/common.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub(crate) struct Outer {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Inner`
[INFO] [stdout]   --> tests/common.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) struct Inner {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_byte_array`
[INFO] [stdout]   --> tests/common.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn print_byte_array<W: Write>(w: &mut W, bytes: &[u8], max_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.43s
[INFO] running `Command { std: "docker" "inspect" "0423b2544498ce8d1814139b68c27e603c158897792e8b4248f7a371a8dc2da4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0423b2544498ce8d1814139b68c27e603c158897792e8b4248f7a371a8dc2da4", kill_on_drop: false }`
[INFO] [stdout] 0423b2544498ce8d1814139b68c27e603c158897792e8b4248f7a371a8dc2da4