[INFO] fetching crate wasmer-singlepass-backend 0.17.1...
[INFO] checking wasmer-singlepass-backend-0.17.1 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate wasmer-singlepass-backend 0.17.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate wasmer-singlepass-backend 0.17.1 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-singlepass-backend 0.17.1
[INFO] finished tweaking crates.io crate wasmer-singlepass-backend 0.17.1
[INFO] tweaked toml for crates.io crate wasmer-singlepass-backend 0.17.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95837d561bc0e39dd8d4fe114444a4c23753888b810a8826415959a72ba93bac
[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" "95837d561bc0e39dd8d4fe114444a4c23753888b810a8826415959a72ba93bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95837d561bc0e39dd8d4fe114444a4c23753888b810a8826415959a72ba93bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95837d561bc0e39dd8d4fe114444a4c23753888b810a8826415959a72ba93bac", kill_on_drop: false }`
[INFO] [stdout] 95837d561bc0e39dd8d4fe114444a4c23753888b810a8826415959a72ba93bac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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] 08e40caea93ea9944eb23c6e6eadeba0fce780f12641b23edfe48ec1ada1eaad
[INFO] running `Command { std: "docker" "start" "-a" "08e40caea93ea9944eb23c6e6eadeba0fce780f12641b23edfe48ec1ada1eaad", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking serde-bench v0.0.7
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking indexmap v1.6.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking dynasmrt v0.5.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling wasmer-runtime-core v0.17.1
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling dynasm v0.5.2
[INFO] [stderr]     Checking wasmer-singlepass-backend v0.17.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: field is never read: `addr_rax`
[INFO] [stdout]    --> src/codegen_x64.rs:473:13
[INFO] [stdout]     |
[INFO] [stdout] 473 |             addr_rax: u64,
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout] 2   |     dead_code,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `addr_r11`
[INFO] [stdout]    --> src/codegen_x64.rs:475:13
[INFO] [stdout]     |
[INFO] [stdout] 475 |             addr_r11: u64,
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasmer-singlepass-backend`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: field is never read: `addr_rax`
[INFO] [stdout]    --> src/codegen_x64.rs:473:13
[INFO] [stdout]     |
[INFO] [stdout] 473 |             addr_rax: u64,
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout] 2   |     dead_code,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `addr_r11`
[INFO] [stdout]    --> src/codegen_x64.rs:475:13
[INFO] [stdout]     |
[INFO] [stdout] 475 |             addr_r11: u64,
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "08e40caea93ea9944eb23c6e6eadeba0fce780f12641b23edfe48ec1ada1eaad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08e40caea93ea9944eb23c6e6eadeba0fce780f12641b23edfe48ec1ada1eaad", kill_on_drop: false }`
[INFO] [stdout] 08e40caea93ea9944eb23c6e6eadeba0fce780f12641b23edfe48ec1ada1eaad