[INFO] fetching crate s1vm 0.1.1...
[INFO] checking s1vm-0.1.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate s1vm 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate s1vm 0.1.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate s1vm 0.1.1
[INFO] finished tweaking crates.io crate s1vm 0.1.1
[INFO] tweaked toml for crates.io crate s1vm 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate s1vm 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bwasm v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 9e809c48e1bd2464c1aeab8eeccb3a6b2dad207f58066ef544b39b69a7e1dba3
[INFO] running `Command { std: "docker" "start" "-a" "9e809c48e1bd2464c1aeab8eeccb3a6b2dad207f58066ef544b39b69a7e1dba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e809c48e1bd2464c1aeab8eeccb3a6b2dad207f58066ef544b39b69a7e1dba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e809c48e1bd2464c1aeab8eeccb3a6b2dad207f58066ef544b39b69a7e1dba3", kill_on_drop: false }`
[INFO] [stdout] 9e809c48e1bd2464c1aeab8eeccb3a6b2dad207f58066ef544b39b69a7e1dba3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] e16f9eb9c920d534711eab131004abecd1e2add65f0cd9174cbe44518e1b46a9
[INFO] running `Command { std: "docker" "start" "-a" "e16f9eb9c920d534711eab131004abecd1e2add65f0cd9174cbe44518e1b46a9", kill_on_drop: false }`
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking parity-wasm v0.42.2
[INFO] [stderr]     Checking wasmi-validation v0.3.0
[INFO] [stderr]     Checking wasmi-validation v0.4.0
[INFO] [stderr]     Checking bwasm v0.1.1
[INFO] [stderr]     Checking s1vm v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Branch`
[INFO] [stdout]   --> src/compiler.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   Branch(u32),
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]   --> src/compiler.rs:49:3
[INFO] [stdout]    |
[INFO] [stdout] 49 |   kind: BlockKind,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `func_idx`
[INFO] [stdout]    --> src/compiler.rs:133:3
[INFO] [stdout]     |
[INFO] [stdout] 133 |   func_idx: u32,
[INFO] [stdout]     |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Branch`
[INFO] [stdout]   --> src/compiler.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   Branch(u32),
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]   --> src/compiler.rs:49:3
[INFO] [stdout]    |
[INFO] [stdout] 49 |   kind: BlockKind,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `func_idx`
[INFO] [stdout]    --> src/compiler.rs:133:3
[INFO] [stdout]     |
[INFO] [stdout] 133 |   func_idx: u32,
[INFO] [stdout]     |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 3.79s
[INFO] running `Command { std: "docker" "inspect" "e16f9eb9c920d534711eab131004abecd1e2add65f0cd9174cbe44518e1b46a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e16f9eb9c920d534711eab131004abecd1e2add65f0cd9174cbe44518e1b46a9", kill_on_drop: false }`
[INFO] [stdout] e16f9eb9c920d534711eab131004abecd1e2add65f0cd9174cbe44518e1b46a9