[INFO] fetching crate s1vm 0.1.1...
[INFO] testing s1vm-0.1.1 against try#16fbf98f22730e073c09e7b03f0eafb87a295545 for pr-145628
[INFO] extracting crate s1vm 0.1.1 into /workspace/builds/worker-5-tc2/source
[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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate s1vm 0.1.1 on toolchain 16fbf98f22730e073c09e7b03f0eafb87a295545
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate s1vm 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 110f14e0df42674eb8772b3b09f9629ea2261c2a742591303b6c7027ae9620b0
[INFO] running `Command { std: "docker" "start" "-a" "110f14e0df42674eb8772b3b09f9629ea2261c2a742591303b6c7027ae9620b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "110f14e0df42674eb8772b3b09f9629ea2261c2a742591303b6c7027ae9620b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "110f14e0df42674eb8772b3b09f9629ea2261c2a742591303b6c7027ae9620b0", kill_on_drop: false }`
[INFO] [stdout] 110f14e0df42674eb8772b3b09f9629ea2261c2a742591303b6c7027ae9620b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a3141cc8ba6ab9face59b282b1d7a535f95b15c8de1b81b86a4f2a23ab630f5
[INFO] running `Command { std: "docker" "start" "-a" "5a3141cc8ba6ab9face59b282b1d7a535f95b15c8de1b81b86a4f2a23ab630f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling parity-wasm v0.41.0
[INFO] [stderr]    Compiling parity-wasm v0.42.2
[INFO] [stderr]    Compiling wasmi-validation v0.3.0
[INFO] [stderr]    Compiling wasmi-validation v0.4.0
[INFO] [stderr]    Compiling bwasm v0.1.1
[INFO] [stderr]    Compiling s1vm v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Branch` is never constructed
[INFO] [stdout]   --> src/compiler.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum Action {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |   Branch(u32),
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Action` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/compiler.rs:49:3
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Block
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 48 | {
[INFO] [stdout] 49 |   kind: BlockKind,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 4.36s
[INFO] running `Command { std: "docker" "inspect" "5a3141cc8ba6ab9face59b282b1d7a535f95b15c8de1b81b86a4f2a23ab630f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a3141cc8ba6ab9face59b282b1d7a535f95b15c8de1b81b86a4f2a23ab630f5", kill_on_drop: false }`
[INFO] [stdout] 5a3141cc8ba6ab9face59b282b1d7a535f95b15c8de1b81b86a4f2a23ab630f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08719f62f5bde31cfd7e9f7d386aeab745d96052b6cfcaddc8c217c706b0e761
[INFO] running `Command { std: "docker" "start" "-a" "08719f62f5bde31cfd7e9f7d386aeab745d96052b6cfcaddc8c217c706b0e761", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `wasmi-validation v0.4.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack package `wasmi-validation v0.4.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/wasmi-validation-0.4.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "08719f62f5bde31cfd7e9f7d386aeab745d96052b6cfcaddc8c217c706b0e761", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08719f62f5bde31cfd7e9f7d386aeab745d96052b6cfcaddc8c217c706b0e761", kill_on_drop: false }`
[INFO] [stdout] 08719f62f5bde31cfd7e9f7d386aeab745d96052b6cfcaddc8c217c706b0e761