[INFO] cloning repository https://github.com/ckafrouni/dataflowVM [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ckafrouni/dataflowVM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckafrouni%2FdataflowVM", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckafrouni%2FdataflowVM'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9933fc13ba8bcdf54ea3e6d2760429d6ccb361f0 [INFO] checking ckafrouni/dataflowVM against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckafrouni%2FdataflowVM" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/ckafrouni/dataflowVM [INFO] finished tweaking git repo https://github.com/ckafrouni/dataflowVM [INFO] tweaked toml for git repo https://github.com/ckafrouni/dataflowVM written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/ckafrouni/dataflowVM on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/ckafrouni/dataflowVM 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" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 96802e8e666cea9e53e2b326d6b65f076541697a9aeb51ed4aa027852564c7a9 [INFO] running `Command { std: "docker" "start" "-a" "96802e8e666cea9e53e2b326d6b65f076541697a9aeb51ed4aa027852564c7a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "96802e8e666cea9e53e2b326d6b65f076541697a9aeb51ed4aa027852564c7a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96802e8e666cea9e53e2b326d6b65f076541697a9aeb51ed4aa027852564c7a9", kill_on_drop: false }` [INFO] [stdout] 96802e8e666cea9e53e2b326d6b65f076541697a9aeb51ed4aa027852564c7a9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c12c003b7002b075b09fffd055d561e22e3a80a2418821e9779476ce8165ad76 [INFO] running `Command { std: "docker" "start" "-a" "c12c003b7002b075b09fffd055d561e22e3a80a2418821e9779476ce8165ad76", kill_on_drop: false }` [INFO] [stderr] Checking dataflow_vm v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Atom` [INFO] [stdout] --> src/vm/mod.rs:12:67 [INFO] [stdout] | [INFO] [stdout] 12 | pub use single_assignment_memory::{SingleAssignmentMemory, Value, Atom}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Atom` [INFO] [stdout] --> src/vm/mod.rs:12:67 [INFO] [stdout] | [INFO] [stdout] 12 | pub use single_assignment_memory::{SingleAssignmentMemory, Value, Atom}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let x = Identifier::new("X".to_string()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let y = Identifier::new("Y".to_string()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let z = Identifier::new("Z".to_string()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `foo` [INFO] [stdout] --> src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let foo = Identifier::new("foo".to_string()); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_foo` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let x = Identifier::new("X".to_string()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let y = Identifier::new("Y".to_string()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let z = Identifier::new("Z".to_string()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `foo` [INFO] [stdout] --> src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let foo = Identifier::new("foo".to_string()); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_foo` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Thread`, `AssignAdd`, `ProcDef`, and `ProcCall` are never constructed [INFO] [stdout] --> src/vm/mod.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 16 | pub enum VmInstruction { [INFO] [stdout] | ------------- variants in this enum [INFO] [stdout] 17 | Thread(Vec), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | AssignAdd(Identifier, Identifier, Identifier), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 21 | Print(Identifier), [INFO] [stdout] 22 | ProcDef( [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | ProcCall(Identifier, Vec), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `VmInstruction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Thread`, `AssignAdd`, `ProcDef`, and `ProcCall` are never constructed [INFO] [stdout] --> src/vm/mod.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 16 | pub enum VmInstruction { [INFO] [stdout] | ------------- variants in this enum [INFO] [stdout] 17 | Thread(Vec), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | AssignAdd(Identifier, Identifier, Identifier), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 21 | Print(Identifier), [INFO] [stdout] 22 | ProcDef( [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | ProcCall(Identifier, Vec), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `VmInstruction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/vm/variable.rs:11:37 [INFO] [stdout] | [INFO] [stdout] 11 | Variable(format!("v{}", COUNTER)) [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/vm/variable.rs:11:37 [INFO] [stdout] | [INFO] [stdout] 11 | Variable(format!("v{}", COUNTER)) [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s [INFO] running `Command { std: "docker" "inspect" "c12c003b7002b075b09fffd055d561e22e3a80a2418821e9779476ce8165ad76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c12c003b7002b075b09fffd055d561e22e3a80a2418821e9779476ce8165ad76", kill_on_drop: false }` [INFO] [stdout] c12c003b7002b075b09fffd055d561e22e3a80a2418821e9779476ce8165ad76