[INFO] fetching crate dynasm 1.1.0...
[INFO] testing dynasm-1.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate dynasm 1.1.0 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate dynasm 1.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dynasm 1.1.0
[INFO] finished tweaking crates.io crate dynasm 1.1.0
[INFO] tweaked toml for crates.io crate dynasm 1.1.0 written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 913fcb0a72e9f30846f7dd315d0085340dc4550c4af942f2596bf65b7790eb49
[INFO] running `Command { std: "docker" "start" "-a" "913fcb0a72e9f30846f7dd315d0085340dc4550c4af942f2596bf65b7790eb49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "913fcb0a72e9f30846f7dd315d0085340dc4550c4af942f2596bf65b7790eb49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "913fcb0a72e9f30846f7dd315d0085340dc4550c4af942f2596bf65b7790eb49", kill_on_drop: false }`
[INFO] [stdout] 913fcb0a72e9f30846f7dd315d0085340dc4550c4af942f2596bf65b7790eb49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1e7337f2364d0671baf10f9a6f5eddc39a6aed46453c8c0f22531eb75307ea6
[INFO] running `Command { std: "docker" "start" "-a" "f1e7337f2364d0671baf10f9a6f5eddc39a6aed46453c8c0f22531eb75307ea6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling dynasm v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `arch`
[INFO] [stdout]    --> src/lib.rs:225:5
[INFO] [stdout]     |
[INFO] [stdout] 225 |     pub arch: String
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `target`
[INFO] [stdout]    --> src/lib.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 243 |     pub target: &'a TokenTree,
[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 18.90s
[INFO] running `Command { std: "docker" "inspect" "f1e7337f2364d0671baf10f9a6f5eddc39a6aed46453c8c0f22531eb75307ea6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1e7337f2364d0671baf10f9a6f5eddc39a6aed46453c8c0f22531eb75307ea6", kill_on_drop: false }`
[INFO] [stdout] f1e7337f2364d0671baf10f9a6f5eddc39a6aed46453c8c0f22531eb75307ea6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8cf63121c282f2836da7ea71418572253bf7d900149fd8c238ee8d46df028a6
[INFO] running `Command { std: "docker" "start" "-a" "c8cf63121c282f2836da7ea71418572253bf7d900149fd8c238ee8d46df028a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling dynasm v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `arch`
[INFO] [stdout]    --> src/lib.rs:225:5
[INFO] [stdout]     |
[INFO] [stdout] 225 |     pub arch: String
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `target`
[INFO] [stdout]    --> src/lib.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 243 |     pub target: &'a TokenTree,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `arch`
[INFO] [stdout]    --> src/lib.rs:225:5
[INFO] [stdout]     |
[INFO] [stdout] 225 |     pub arch: String
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `target`
[INFO] [stdout]    --> src/lib.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 243 |     pub target: &'a TokenTree,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.61s
[INFO] running `Command { std: "docker" "inspect" "c8cf63121c282f2836da7ea71418572253bf7d900149fd8c238ee8d46df028a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8cf63121c282f2836da7ea71418572253bf7d900149fd8c238ee8d46df028a6", kill_on_drop: false }`
[INFO] [stdout] c8cf63121c282f2836da7ea71418572253bf7d900149fd8c238ee8d46df028a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b909662d5347b97535e8bc767d9f4fd12fa6ecf194374b511aae0a60eb06547f
[INFO] running `Command { std: "docker" "start" "-a" "b909662d5347b97535e8bc767d9f4fd12fa6ecf194374b511aae0a60eb06547f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `arch`
[INFO] [stderr]    --> src/lib.rs:225:5
[INFO] [stderr]     |
[INFO] [stderr] 225 |     pub arch: String
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `target`
[INFO] [stderr]    --> src/lib.rs:243:5
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub target: &'a TokenTree,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dynasm` (lib) generated 2 warnings
[INFO] [stderr] warning: `dynasm` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.80s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dynasm-8fcf98bcbae9e15b)
[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] [stderr]    Doc-tests dynasm
[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" "b909662d5347b97535e8bc767d9f4fd12fa6ecf194374b511aae0a60eb06547f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b909662d5347b97535e8bc767d9f4fd12fa6ecf194374b511aae0a60eb06547f", kill_on_drop: false }`
[INFO] [stdout] b909662d5347b97535e8bc767d9f4fd12fa6ecf194374b511aae0a60eb06547f