[INFO] fetching crate multiserver 0.1.0...
[INFO] testing multiserver-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate multiserver 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate multiserver 0.1.0
[INFO] finished tweaking crates.io crate multiserver 0.1.0
[INFO] tweaked toml for crates.io crate multiserver 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate multiserver 0.1.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate multiserver 0.1.0 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7be42951593423109f8822af3ff0471a50c87441140fd446defd9b759ac6e286
[INFO] running `Command { std: "docker" "start" "-a" "7be42951593423109f8822af3ff0471a50c87441140fd446defd9b759ac6e286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7be42951593423109f8822af3ff0471a50c87441140fd446defd9b759ac6e286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be42951593423109f8822af3ff0471a50c87441140fd446defd9b759ac6e286", kill_on_drop: false }`
[INFO] [stdout] 7be42951593423109f8822af3ff0471a50c87441140fd446defd9b759ac6e286
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 93d317048818f3e0697571036bbaea10dfbd40bd7768668029186013a20d57e3
[INFO] running `Command { std: "docker" "start" "-a" "93d317048818f3e0697571036bbaea10dfbd40bd7768668029186013a20d57e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling multiserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `works` is never read
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 4 |     works: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 31 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 32 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "93d317048818f3e0697571036bbaea10dfbd40bd7768668029186013a20d57e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d317048818f3e0697571036bbaea10dfbd40bd7768668029186013a20d57e3", kill_on_drop: false }`
[INFO] [stdout] 93d317048818f3e0697571036bbaea10dfbd40bd7768668029186013a20d57e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 6208c80126c15a5974eb4e94487ba55b252c539a39c3b963e0ff47376d304ea8
[INFO] running `Command { std: "docker" "start" "-a" "6208c80126c15a5974eb4e94487ba55b252c539a39c3b963e0ff47376d304ea8", kill_on_drop: false }`
[INFO] [stdout] warning: field `works` is never read
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 4 |     works: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 31 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 32 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling multiserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `works` is never read
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 4 |     works: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 31 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 32 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "6208c80126c15a5974eb4e94487ba55b252c539a39c3b963e0ff47376d304ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6208c80126c15a5974eb4e94487ba55b252c539a39c3b963e0ff47376d304ea8", kill_on_drop: false }`
[INFO] [stdout] 6208c80126c15a5974eb4e94487ba55b252c539a39c3b963e0ff47376d304ea8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 5aa4f0774eb3f81133a95789ef43dcf5204802a01bd49a027b686db245a9235d
[INFO] running `Command { std: "docker" "start" "-a" "5aa4f0774eb3f81133a95789ef43dcf5204802a01bd49a027b686db245a9235d", kill_on_drop: false }`
[INFO] [stderr] warning: field `works` is never read
[INFO] [stderr]  --> src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct ThreadPool {
[INFO] [stderr]   |            ---------- field in this struct
[INFO] [stderr] 4 |     works: Vec<Worker>,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `id` and `thread` are never read
[INFO] [stderr]   --> src/lib.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | struct Worker {
[INFO] [stderr]    |        ------ fields in this struct
[INFO] [stderr] 31 |     id: usize,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 32 |     thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `multiserver` (lib) generated 2 warnings
[INFO] [stderr] warning: `multiserver` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/multiserver-039e6cf7dd747ea1)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/multiserver-f77d5be0d7dc7ebd)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5aa4f0774eb3f81133a95789ef43dcf5204802a01bd49a027b686db245a9235d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aa4f0774eb3f81133a95789ef43dcf5204802a01bd49a027b686db245a9235d", kill_on_drop: false }`
[INFO] [stdout] 5aa4f0774eb3f81133a95789ef43dcf5204802a01bd49a027b686db245a9235d