[INFO] cloning repository https://github.com/robinvd/vm [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robinvd/vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinvd%2Fvm"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinvd%2Fvm'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 841ea10727e816623721ed35a728c489af5a7213 [INFO] checking robinvd/vm against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinvd%2Fvm" "/workspace/builds/worker-0/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/robinvd/vm on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/robinvd/vm [INFO] finished tweaking git repo https://github.com/robinvd/vm [INFO] tweaked toml for git repo https://github.com/robinvd/vm written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/robinvd/vm already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f6f4d61647f00bdb0a416b76b60d73bdb4a3a9bbff79e9ef09455be9ab136ca4 [INFO] running `"docker" "start" "-a" "f6f4d61647f00bdb0a416b76b60d73bdb4a3a9bbff79e9ef09455be9ab136ca4"` [INFO] [stderr] Checking cfg-if v0.1.5 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling proc-macro2 v0.4.20 [INFO] [stderr] Checking byteorder v1.2.6 [INFO] [stderr] Compiling regex v1.0.5 [INFO] [stderr] Compiling ryu v0.2.6 [INFO] [stderr] Checking utf8-ranges v1.0.1 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking same-file v1.0.4 [INFO] [stderr] Compiling memchr v2.1.0 [INFO] [stderr] Compiling lazy_static v1.1.0 [INFO] [stderr] Checking regex-syntax v0.6.2 [INFO] [stderr] Checking itertools v0.7.8 [INFO] [stderr] Compiling pest_derive v1.0.8 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking backtrace v0.3.9 [INFO] [stderr] Checking term v0.5.1 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking walkdir v2.2.6 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Checking serde_json v1.0.32 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking aho-corasick v0.6.8 [INFO] [stderr] Checking csv-core v0.1.4 [INFO] [stderr] Checking combine v3.6.1 [INFO] [stderr] Compiling quote v0.6.9 [INFO] [stderr] Checking criterion-plot v0.2.5 [INFO] [stderr] Compiling syn v0.15.17 [INFO] [stderr] Checking csv v1.0.2 [INFO] [stderr] Checking num-integer v0.1.39 [INFO] [stderr] Checking ordered-float v1.0.1 [INFO] [stderr] Checking criterion-stats v0.2.5 [INFO] [stderr] Checking itertools-num v0.1.2 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking simplelog v0.5.3 [INFO] [stderr] Checking handlebars v0.32.4 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling serde_derive v1.0.80 [INFO] [stderr] Compiling failure_derive v0.1.3 [INFO] [stderr] Checking failure v0.1.3 [INFO] [stderr] Checking sabi v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/vm/mod.rs:662:27 [INFO] [stderr] | [INFO] [stderr] 662 | output: Arc>>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'write` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/vm/mod.rs:668:28 [INFO] [stderr] | [INFO] [stderr] 668 | pub fn new(output: Box) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'a + Sync` [INFO] [stderr] [INFO] [stderr] Checking criterion v0.2.5 [INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/compiler/mod.rs:105:17 [INFO] [stderr] | [INFO] [stderr] 101 | let loc = self [INFO] [stderr] | ___________________________- [INFO] [stderr] 102 | | .names [INFO] [stderr] | |__________________________- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 105 | self.add_opcode(vm, Opcode::Load, Some(&Arg::Int(*loc as isize)))?; [INFO] [stderr] | ^^^^ mutable borrow occurs here ---- immutable borrow later used here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:296:17 [INFO] [stderr] | [INFO] [stderr] 296 | writeln!(data, "{}", val); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:420:9 [INFO] [stderr] | [INFO] [stderr] 420 | writeln!(f, "{}:", self.name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:429:13 [INFO] [stderr] | [INFO] [stderr] 429 | write!(f, "{:04x}: {:?}", i, op); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:437:17 [INFO] [stderr] | [INFO] [stderr] 437 | write!(f, " {}", num); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:441:13 [INFO] [stderr] | [INFO] [stderr] 441 | writeln!(f); [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:444:9 [INFO] [stderr] | [INFO] [stderr] 444 | writeln!(f, "labels {:?}", self.labels); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:445:9 [INFO] [stderr] | [INFO] [stderr] 445 | writeln!(f, "labeli {:?}", self.label_index); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:446:9 [INFO] [stderr] | [INFO] [stderr] 446 | writeln!(f, "const {:?}", self.constants); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/vm/mod.rs:662:27 [INFO] [stderr] | [INFO] [stderr] 662 | output: Arc>>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'write` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/vm/mod.rs:668:28 [INFO] [stderr] | [INFO] [stderr] 668 | pub fn new(output: Box) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'a + Sync` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> benches/benchmark.rs:23:44 [INFO] [stderr] | [INFO] [stderr] 23 | fn load_vm<'a>(input: &'a str, buffer: Box<'a + std::io::Write + Sync>) -> VM<'a> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + std::io::Write + Sync` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/compiler/mod.rs:105:17 [INFO] [stderr] | [INFO] [stderr] 101 | let loc = self [INFO] [stderr] | ___________________________- [INFO] [stderr] 102 | | .names [INFO] [stderr] | |__________________________- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 105 | self.add_opcode(vm, Opcode::Load, Some(&Arg::Int(*loc as isize)))?; [INFO] [stderr] | ^^^^ mutable borrow occurs here ---- immutable borrow later used here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:296:17 [INFO] [stderr] | [INFO] [stderr] 296 | writeln!(data, "{}", val); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:420:9 [INFO] [stderr] | [INFO] [stderr] 420 | writeln!(f, "{}:", self.name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:429:13 [INFO] [stderr] | [INFO] [stderr] 429 | write!(f, "{:04x}: {:?}", i, op); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:437:17 [INFO] [stderr] | [INFO] [stderr] 437 | write!(f, " {}", num); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:441:13 [INFO] [stderr] | [INFO] [stderr] 441 | writeln!(f); [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:444:9 [INFO] [stderr] | [INFO] [stderr] 444 | writeln!(f, "labels {:?}", self.labels); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:445:9 [INFO] [stderr] | [INFO] [stderr] 445 | writeln!(f, "labeli {:?}", self.label_index); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/vm/mod.rs:446:9 [INFO] [stderr] | [INFO] [stderr] 446 | writeln!(f, "const {:?}", self.constants); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 12s [INFO] running `"docker" "inspect" "f6f4d61647f00bdb0a416b76b60d73bdb4a3a9bbff79e9ef09455be9ab136ca4"` [INFO] running `"docker" "rm" "-f" "f6f4d61647f00bdb0a416b76b60d73bdb4a3a9bbff79e9ef09455be9ab136ca4"` [INFO] [stdout] f6f4d61647f00bdb0a416b76b60d73bdb4a3a9bbff79e9ef09455be9ab136ca4