[INFO] fetching crate s1vm 0.1.1...
[INFO] checking s1vm-0.1.1 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate s1vm 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate s1vm 0.1.1 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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-6/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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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] 2c61ce357f5b5bc274b35699cb249c69fb2a485de4a94fca007ef0d9a2eba88c
[INFO] running `Command { std: "docker" "start" "-a" "2c61ce357f5b5bc274b35699cb249c69fb2a485de4a94fca007ef0d9a2eba88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c61ce357f5b5bc274b35699cb249c69fb2a485de4a94fca007ef0d9a2eba88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c61ce357f5b5bc274b35699cb249c69fb2a485de4a94fca007ef0d9a2eba88c", kill_on_drop: false }`
[INFO] [stdout] 2c61ce357f5b5bc274b35699cb249c69fb2a485de4a94fca007ef0d9a2eba88c
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 185e3889d1c91728d6df22bebcb3aa93621bf787e4cdd88a3a839a96af9b6846
[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" "185e3889d1c91728d6df22bebcb3aa93621bf787e4cdd88a3a839a96af9b6846", 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 v0.4.0
[INFO] [stderr]     Checking wasmi-validation v0.3.0
[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 4.06s
[INFO] running `Command { std: "docker" "inspect" "185e3889d1c91728d6df22bebcb3aa93621bf787e4cdd88a3a839a96af9b6846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "185e3889d1c91728d6df22bebcb3aa93621bf787e4cdd88a3a839a96af9b6846", kill_on_drop: false }`
[INFO] [stdout] 185e3889d1c91728d6df22bebcb3aa93621bf787e4cdd88a3a839a96af9b6846