[INFO] cloning repository https://github.com/chrisf1337/euphonium-core
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chrisf1337/euphonium-core" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisf1337%2Feuphonium-core", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisf1337%2Feuphonium-core'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dda17c3c50d5f0079a2fc2e925d4b1c3d478c47d
[INFO] checking chrisf1337/euphonium-core against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisf1337%2Feuphonium-core" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chrisf1337/euphonium-core on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chrisf1337/euphonium-core
[INFO] finished tweaking git repo https://github.com/chrisf1337/euphonium-core
[INFO] tweaked toml for git repo https://github.com/chrisf1337/euphonium-core written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/chrisf1337/euphonium-core already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b93021a9894d8c9a0a15f46c553dfc87d616c0eceda913a9fcfa0481c09fde74
[INFO] running `Command { std: "docker" "start" "-a" "b93021a9894d8c9a0a15f46c553dfc87d616c0eceda913a9fcfa0481c09fde74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b93021a9894d8c9a0a15f46c553dfc87d616c0eceda913a9fcfa0481c09fde74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b93021a9894d8c9a0a15f46c553dfc87d616c0eceda913a9fcfa0481c09fde74", kill_on_drop: false }`
[INFO] [stdout] b93021a9894d8c9a0a15f46c553dfc87d616c0eceda913a9fcfa0481c09fde74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f5c8d1c987fab33e10a6af32d10f928ddf11aa1ee8e7243fd2beca6bd27e4d4
[INFO] running `Command { std: "docker" "start" "-a" "1f5c8d1c987fab33e10a6af32d10f928ddf11aa1ee8e7243fd2beca6bd27e4d4", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]     Checking serde v0.9.7
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]    Compiling syn v0.11.4
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking color_logger v0.1.0 (/opt/rustwide/workdir/color_logger)
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> color_logger/src/lib.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn enabled(&self, metadata: &LogMetadata) -> bool {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking uuid v0.3.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.13.0
[INFO] [stderr]     Checking serde_json v0.9.5
[INFO] [stderr]    Compiling serde_derive v0.9.7
[INFO] [stderr]     Checking buffer v0.1.0 (/opt/rustwide/workdir/buffer)
[INFO] [stderr]     Checking demise_core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Value`
[INFO] [stdout]  --> src/actions.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde_json::{Value};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Value`
[INFO] [stdout]  --> src/actions.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde_json::{Value};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]    --> src/main.rs:189:20
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 Ok(stream) => {
[INFO] [stdout]     |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]    --> src/main.rs:189:20
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 Ok(stream) => {
[INFO] [stdout]     |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `out_handle_client`
[INFO] [stdout]    --> src/main.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn out_handle_client(stream: TcpStream) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `out_handle_client`
[INFO] [stdout]    --> src/main.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn out_handle_client(stream: TcpStream) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.34s
[INFO] running `Command { std: "docker" "inspect" "1f5c8d1c987fab33e10a6af32d10f928ddf11aa1ee8e7243fd2beca6bd27e4d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f5c8d1c987fab33e10a6af32d10f928ddf11aa1ee8e7243fd2beca6bd27e4d4", kill_on_drop: false }`
[INFO] [stdout] 1f5c8d1c987fab33e10a6af32d10f928ddf11aa1ee8e7243fd2beca6bd27e4d4