[INFO] fetching crate riscv-sandbox 0.2.0...
[INFO] checking riscv-sandbox-0.2.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate riscv-sandbox 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate riscv-sandbox 0.2.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate riscv-sandbox 0.2.0
[INFO] finished tweaking crates.io crate riscv-sandbox 0.2.0
[INFO] tweaked toml for crates.io crate riscv-sandbox 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate riscv-sandbox 0.2.0 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitvec v0.15.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2610111c6093be552699df621766fc860f865d8b7886eb37467800909f1b254e
[INFO] running `Command { std: "docker" "start" "-a" "2610111c6093be552699df621766fc860f865d8b7886eb37467800909f1b254e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2610111c6093be552699df621766fc860f865d8b7886eb37467800909f1b254e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2610111c6093be552699df621766fc860f865d8b7886eb37467800909f1b254e", kill_on_drop: false }`
[INFO] [stdout] 2610111c6093be552699df621766fc860f865d8b7886eb37467800909f1b254e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af5080f571b3f852aeef0a177c55b6c454d475455c95f9623a64b9489c4397fc
[INFO] running `Command { std: "docker" "start" "-a" "af5080f571b3f852aeef0a177c55b6c454d475455c95f9623a64b9489c4397fc", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking bitvec v0.15.2
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]     Checking riscv-sandbox v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/machine/mod.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn cycle(&mut self, &mut dyn Memory);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut dyn Memory`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/machine/mod.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn cycle(&mut self, &mut dyn Memory);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut dyn Memory`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `waiting_for_sync` is never read
[INFO] [stdout]   --> src/machine/simtx.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Path {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub waiting_for_sync : BitVec,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Path` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `waiting_for_sync` is never read
[INFO] [stdout]   --> src/machine/simtx.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Path {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub waiting_for_sync : BitVec,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Path` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "af5080f571b3f852aeef0a177c55b6c454d475455c95f9623a64b9489c4397fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af5080f571b3f852aeef0a177c55b6c454d475455c95f9623a64b9489c4397fc", kill_on_drop: false }`
[INFO] [stdout] af5080f571b3f852aeef0a177c55b6c454d475455c95f9623a64b9489c4397fc