[INFO] fetching crate lightbeam 0.30.0...
[INFO] checking lightbeam-0.30.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate lightbeam 0.30.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate lightbeam 0.30.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lightbeam 0.30.0
[INFO] finished tweaking crates.io crate lightbeam 0.30.0
[INFO] tweaked toml for crates.io crate lightbeam 0.30.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate lightbeam 0.30.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b48f74c8d6632d9abca0766b14e564ffef643d82dc5a965b5b6ee67a34e8681
[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" "3b48f74c8d6632d9abca0766b14e564ffef643d82dc5a965b5b6ee67a34e8681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b48f74c8d6632d9abca0766b14e564ffef643d82dc5a965b5b6ee67a34e8681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b48f74c8d6632d9abca0766b14e564ffef643d82dc5a965b5b6ee67a34e8681", kill_on_drop: false }`
[INFO] [stdout] 3b48f74c8d6632d9abca0766b14e564ffef643d82dc5a965b5b6ee67a34e8681
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--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] 02ffc1f61c53603b598a58410972098888929d00c9554464a1dadeaf2d66b0bb
[INFO] running `Command { std: "docker" "start" "-a" "02ffc1f61c53603b598a58410972098888929d00c9554464a1dadeaf2d66b0bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.77.0
[INFO] [stderr]    Compiling cranelift-entity v0.77.0
[INFO] [stderr]    Compiling target-lexicon v0.12.2
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking wasmparser v0.80.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling capstone-sys v0.13.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking wast v38.0.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking memmap2 v0.2.3
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking cranelift-bforest v0.77.0
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.77.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking wat v1.0.40
[INFO] [stderr]    Compiling derive_utils v0.11.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling dynasm v1.1.0
[INFO] [stderr]    Compiling iter-enum v1.0.1
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling cranelift-codegen v0.77.0
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking dynasmrt v1.1.0
[INFO] [stderr]     Checking capstone v0.9.0
[INFO] [stderr]     Checking lightbeam v0.30.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `reg`
[INFO] [stdout]    --> src/backend.rs:680:5
[INFO] [stdout]     |
[INFO] [stdout] 680 |     reg: Option<GPR>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `imm`
[INFO] [stdout]    --> src/backend.rs:681:5
[INFO] [stdout]     |
[INFO] [stdout] 681 |     imm: usize,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position`
[INFO] [stdout]    --> src/backend.rs:686:5
[INFO] [stdout]     |
[INFO] [stdout] 686 |     position: AssemblyOffset,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dst_reg`
[INFO] [stdout]    --> src/backend.rs:687:5
[INFO] [stdout]     |
[INFO] [stdout] 687 |     dst_reg: GPR,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `address`
[INFO] [stdout]    --> src/backend.rs:688:5
[INFO] [stdout]     |
[INFO] [stdout] 688 |     address: RelocateAddress,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `reg`
[INFO] [stdout]    --> src/backend.rs:680:5
[INFO] [stdout]     |
[INFO] [stdout] 680 |     reg: Option<GPR>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `imm`
[INFO] [stdout]    --> src/backend.rs:681:5
[INFO] [stdout]     |
[INFO] [stdout] 681 |     imm: usize,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position`
[INFO] [stdout]    --> src/backend.rs:686:5
[INFO] [stdout]     |
[INFO] [stdout] 686 |     position: AssemblyOffset,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dst_reg`
[INFO] [stdout]    --> src/backend.rs:687:5
[INFO] [stdout]     |
[INFO] [stdout] 687 |     dst_reg: GPR,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `address`
[INFO] [stdout]    --> src/backend.rs:688:5
[INFO] [stdout]     |
[INFO] [stdout] 688 |     address: RelocateAddress,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "02ffc1f61c53603b598a58410972098888929d00c9554464a1dadeaf2d66b0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ffc1f61c53603b598a58410972098888929d00c9554464a1dadeaf2d66b0bb", kill_on_drop: false }`
[INFO] [stdout] 02ffc1f61c53603b598a58410972098888929d00c9554464a1dadeaf2d66b0bb