[INFO] fetching crate serde-ext-macros 0.1.1...
[INFO] testing serde-ext-macros-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate serde-ext-macros 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate serde-ext-macros 0.1.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde-ext-macros 0.1.1
[INFO] finished tweaking crates.io crate serde-ext-macros 0.1.1
[INFO] tweaked toml for crates.io crate serde-ext-macros 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3b0ac4fca5da8fb83db653bfb3e1f1a69d9ce8747ca92587bf9bbbf6109107ae
[INFO] running `Command { std: "docker" "start" "-a" "3b0ac4fca5da8fb83db653bfb3e1f1a69d9ce8747ca92587bf9bbbf6109107ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b0ac4fca5da8fb83db653bfb3e1f1a69d9ce8747ca92587bf9bbbf6109107ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b0ac4fca5da8fb83db653bfb3e1f1a69d9ce8747ca92587bf9bbbf6109107ae", kill_on_drop: false }`
[INFO] [stdout] 3b0ac4fca5da8fb83db653bfb3e1f1a69d9ce8747ca92587bf9bbbf6109107ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3938d4127a7c2a49a2d7d2c93c1eb0a1c9a9e1bcd616ce1c83bc6e4052366e63
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3938d4127a7c2a49a2d7d2c93c1eb0a1c9a9e1bcd616ce1c83bc6e4052366e63", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde-ext-macros v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `out`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let out = item.clone();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_out`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/lib.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn extend_serde(attrs: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.98s
[INFO] running `Command { std: "docker" "inspect" "3938d4127a7c2a49a2d7d2c93c1eb0a1c9a9e1bcd616ce1c83bc6e4052366e63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3938d4127a7c2a49a2d7d2c93c1eb0a1c9a9e1bcd616ce1c83bc6e4052366e63", kill_on_drop: false }`
[INFO] [stdout] 3938d4127a7c2a49a2d7d2c93c1eb0a1c9a9e1bcd616ce1c83bc6e4052366e63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7b8e58874ec5f82f86baafb00e93cd8ff5a967a4739e83561409d3fbe2501b5a
[INFO] running `Command { std: "docker" "start" "-a" "7b8e58874ec5f82f86baafb00e93cd8ff5a967a4739e83561409d3fbe2501b5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-ext-macros v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `out`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let out = item.clone();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_out`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/lib.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn extend_serde(attrs: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `out`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let out = item.clone();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_out`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/lib.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn extend_serde(attrs: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_ext_macros-4ef3573c7e1cf675)
[INFO] running `Command { std: "docker" "inspect" "7b8e58874ec5f82f86baafb00e93cd8ff5a967a4739e83561409d3fbe2501b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b8e58874ec5f82f86baafb00e93cd8ff5a967a4739e83561409d3fbe2501b5a", kill_on_drop: false }`
[INFO] [stdout] 7b8e58874ec5f82f86baafb00e93cd8ff5a967a4739e83561409d3fbe2501b5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8b2b5de3d6eb4d8f80510a863f7e563a29a3475250a01ba62b9bf2f6f806b843
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8b2b5de3d6eb4d8f80510a863f7e563a29a3475250a01ba62b9bf2f6f806b843", 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] warning: unused variable: `out`
[INFO] [stderr]   --> src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let out = item.clone();
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_out`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `attrs`
[INFO] [stderr]   --> src/lib.rs:10:21
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn extend_serde(attrs: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stderr] 
[INFO] [stderr] warning: `serde-ext-macros` (lib) generated 2 warnings
[INFO] [stderr] warning: `serde-ext-macros` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_ext_macros-4ef3573c7e1cf675)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde-ext-macros
[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" "8b2b5de3d6eb4d8f80510a863f7e563a29a3475250a01ba62b9bf2f6f806b843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b2b5de3d6eb4d8f80510a863f7e563a29a3475250a01ba62b9bf2f6f806b843", kill_on_drop: false }`
[INFO] [stdout] 8b2b5de3d6eb4d8f80510a863f7e563a29a3475250a01ba62b9bf2f6f806b843