[INFO] fetching crate judge-core 0.1.0...
[INFO] checking judge-core-0.1.0 against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] extracting crate judge-core 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate judge-core 0.1.0
[INFO] finished tweaking crates.io crate judge-core 0.1.0
[INFO] tweaked toml for crates.io crate judge-core 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate judge-core 0.1.0 on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 35 packages to highest compatible versions
[INFO] [stderr]       Adding env_logger v0.10.2 (available: v0.11.11)
[INFO] [stderr]       Adding libseccomp v0.3.0 (available: v0.4.0)
[INFO] [stderr]       Adding nix v0.26.4 (available: v0.31.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `judge-core` (manifest) generated 1 warning
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libseccomp v0.3.0
[INFO] [stderr]   Downloaded libseccomp-sys v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 95cb58438493fdabff820362e9ed36d91b444349d0c2679c549ffe54fd687d32
[INFO] running `Command { std: "docker" "start" "95cb58438493fdabff820362e9ed36d91b444349d0c2679c549ffe54fd687d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95cb58438493fdabff820362e9ed36d91b444349d0c2679c549ffe54fd687d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "95cb58438493fdabff820362e9ed36d91b444349d0c2679c549ffe54fd687d32" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95cb58438493fdabff820362e9ed36d91b444349d0c2679c549ffe54fd687d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "95cb58438493fdabff820362e9ed36d91b444349d0c2679c549ffe54fd687d32" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `judge-core` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.189
[INFO] [stderr]    Compiling libseccomp-sys v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.34
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling anyhow v1.0.104
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling libseccomp v0.3.0
[INFO] [stderr]     Checking is-terminal v0.4.17
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking judge-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/run/executor.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |           Ok(execve(
[INFO] [stdout]    |  _________^^_-
[INFO] [stdout]    | |         |
[INFO] [stdout]    | |         unreachable call
[INFO] [stdout] 41 | |             &CString::new(command)?,
[INFO] [stdout] 42 | |             c_args.as_slice(),
[INFO] [stdout] 43 | |             &[CString::new("")?],
[INFO] [stdout] 44 | |         )?)
[INFO] [stdout]    | |__________- any code following this expression is unreachable
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/run/sandbox.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 126 |                 self.executor.exec().expect("Failed to exec");
[INFO] [stdout]     |                 --------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 127 |                 unsafe { libc::_exit(0) };
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/run/executor.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |           Ok(execve(
[INFO] [stdout]    |  _________^^_-
[INFO] [stdout]    | |         |
[INFO] [stdout]    | |         unreachable call
[INFO] [stdout] 41 | |             &CString::new(command)?,
[INFO] [stdout] 42 | |             c_args.as_slice(),
[INFO] [stdout] 43 | |             &[CString::new("")?],
[INFO] [stdout] 44 | |         )?)
[INFO] [stdout]    | |__________- any code following this expression is unreachable
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/run/sandbox.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 126 |                 self.executor.exec().expect("Failed to exec");
[INFO] [stdout]     |                 --------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 127 |                 unsafe { libc::_exit(0) };
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.27s
[INFO] running `Command { std: "docker" "inspect" "95cb58438493fdabff820362e9ed36d91b444349d0c2679c549ffe54fd687d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95cb58438493fdabff820362e9ed36d91b444349d0c2679c549ffe54fd687d32", kill_on_drop: false }`
[INFO] [stdout] 95cb58438493fdabff820362e9ed36d91b444349d0c2679c549ffe54fd687d32
