[INFO] fetching crate bronze_gc 0.1.0... [INFO] checking bronze_gc-0.1.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] extracting crate bronze_gc 0.1.0 into /workspace/builds/worker-42/source [INFO] validating manifest of crates.io crate bronze_gc 0.1.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate bronze_gc 0.1.0 [INFO] finished tweaking crates.io crate bronze_gc 0.1.0 [INFO] tweaked toml for crates.io crate bronze_gc 0.1.0 written to /workspace/builds/worker-42/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 388450d3dfe1702ddc2e62e89834c79022555006fa6971821d9db6d2007e0e9c [INFO] running `Command { std: "docker" "start" "-a" "388450d3dfe1702ddc2e62e89834c79022555006fa6971821d9db6d2007e0e9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "388450d3dfe1702ddc2e62e89834c79022555006fa6971821d9db6d2007e0e9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "388450d3dfe1702ddc2e62e89834c79022555006fa6971821d9db6d2007e0e9c", kill_on_drop: false }` [INFO] [stdout] 388450d3dfe1702ddc2e62e89834c79022555006fa6971821d9db6d2007e0e9c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1e63898b6b907fa67b572d5159d421d5138eb74e043edbceffd587ed7a4cac02 [INFO] running `Command { std: "docker" "start" "-a" "1e63898b6b907fa67b572d5159d421d5138eb74e043edbceffd587ed7a4cac02", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling humantime v2.1.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling bindgen v0.56.0 [INFO] [stderr] Compiling termcolor v1.1.2 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling peeking_take_while v0.1.2 [INFO] [stderr] Compiling shlex v0.1.1 [INFO] [stderr] Compiling rustc-hash v1.1.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking multiset v0.0.5 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling libloading v0.7.0 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling backtrace v0.3.61 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Compiling clang-sys v1.2.0 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Checking object v0.26.1 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling which v3.1.1 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling cexpr v0.4.0 [INFO] [stderr] Compiling env_logger v0.8.4 [INFO] [stderr] Compiling synstructure v0.12.5 [INFO] [stderr] Compiling serial_test_derive v0.5.1 [INFO] [stderr] Compiling bronze_derive v0.1.0 [INFO] [stderr] Checking serial_test v0.5.1 [INFO] [stderr] Compiling bronze_gc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::env` [INFO] [stdout] --> build.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::env; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::path::PathBuf` [INFO] [stdout] --> build.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::path::PathBuf; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::ffi::c_void` [INFO] [stdout] --> src/lib.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | use core::ffi::c_void; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::ffi::c_void` [INFO] [stdout] --> src/lib.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | use core::ffi::c_void; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `USED_SPACE_RATIO` [INFO] [stdout] --> src/lib.rs:41:1 [INFO] [stdout] | [INFO] [stdout] 41 | const USED_SPACE_RATIO: f64 = 0.7; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `threshold` [INFO] [stdout] --> src/lib.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | threshold: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `vtable` [INFO] [stdout] --> src/lib.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | vtable: *mut Vtable, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `marked` [INFO] [stdout] --> src/lib.rs:77:5 [INFO] [stdout] | [INFO] [stdout] 77 | marked: Cell, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `header` [INFO] [stdout] --> src/lib.rs:93:5 [INFO] [stdout] | [INFO] [stdout] 93 | header: GcBoxHeader, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `trace_inner` [INFO] [stdout] --> src/lib.rs:137:26 [INFO] [stdout] | [INFO] [stdout] 137 | pub(crate) unsafe fn trace_inner(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `erased` [INFO] [stdout] --> src/lib.rs:149:8 [INFO] [stdout] | [INFO] [stdout] 149 | fn erased(&self) -> &GcBox { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dyn_data` [INFO] [stdout] --> src/lib.rs:159:8 [INFO] [stdout] | [INFO] [stdout] 159 | fn dyn_data(&self) -> &dyn GcTrace { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_box` [INFO] [stdout] --> src/lib.rs:276:19 [INFO] [stdout] | [INFO] [stdout] 276 | pub(crate) fn as_box<'a> (&'a self) -> &GcBox { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `NullableBoxRef` [INFO] [stdout] --> src/lib.rs:420:5 [INFO] [stdout] | [INFO] [stdout] 420 | NullableBoxRef(NonNull>), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `USED_SPACE_RATIO` [INFO] [stdout] --> src/lib.rs:41:1 [INFO] [stdout] | [INFO] [stdout] 41 | const USED_SPACE_RATIO: f64 = 0.7; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `threshold` [INFO] [stdout] --> src/lib.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | threshold: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `vtable` [INFO] [stdout] --> src/lib.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | vtable: *mut Vtable, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `marked` [INFO] [stdout] --> src/lib.rs:77:5 [INFO] [stdout] | [INFO] [stdout] 77 | marked: Cell, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `header` [INFO] [stdout] --> src/lib.rs:93:5 [INFO] [stdout] | [INFO] [stdout] 93 | header: GcBoxHeader, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `trace_inner` [INFO] [stdout] --> src/lib.rs:137:26 [INFO] [stdout] | [INFO] [stdout] 137 | pub(crate) unsafe fn trace_inner(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `erased` [INFO] [stdout] --> src/lib.rs:149:8 [INFO] [stdout] | [INFO] [stdout] 149 | fn erased(&self) -> &GcBox { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dyn_data` [INFO] [stdout] --> src/lib.rs:159:8 [INFO] [stdout] | [INFO] [stdout] 159 | fn dyn_data(&self) -> &dyn GcTrace { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_box` [INFO] [stdout] --> src/lib.rs:276:19 [INFO] [stdout] | [INFO] [stdout] 276 | pub(crate) fn as_box<'a> (&'a self) -> &GcBox { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `NullableBoxRef` [INFO] [stdout] --> src/lib.rs:420:5 [INFO] [stdout] | [INFO] [stdout] 420 | NullableBoxRef(NonNull>), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `backtrace::Backtrace` [INFO] [stdout] --> tests/tests.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use backtrace::Backtrace; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `refs` [INFO] [stdout] --> tests/tests.rs:183:9 [INFO] [stdout] | [INFO] [stdout] 183 | let refs = TenRefs{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_refs` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `alloc_one_tracked_obj` [INFO] [stdout] --> tests/tests.rs:139:4 [INFO] [stdout] | [INFO] [stdout] 139 | fn alloc_one_tracked_obj(tracker: Rc>) -> GcRef { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `r1` [INFO] [stdout] --> tests/tests.rs:165:5 [INFO] [stdout] | [INFO] [stdout] 165 | r1: GcRef, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `r2` [INFO] [stdout] --> tests/tests.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 166 | r2: GcRef, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `r3` [INFO] [stdout] --> tests/tests.rs:167:5 [INFO] [stdout] | [INFO] [stdout] 167 | r3: GcRef, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `r4` [INFO] [stdout] --> tests/tests.rs:168:5 [INFO] [stdout] | [INFO] [stdout] 168 | r4: GcRef, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `r5` [INFO] [stdout] --> tests/tests.rs:169:5 [INFO] [stdout] | [INFO] [stdout] 169 | r5: GcRef, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `r6` [INFO] [stdout] --> tests/tests.rs:170:5 [INFO] [stdout] | [INFO] [stdout] 170 | r6: GcRef, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `r7` [INFO] [stdout] --> tests/tests.rs:171:5 [INFO] [stdout] | [INFO] [stdout] 171 | r7: GcRef, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `r8` [INFO] [stdout] --> tests/tests.rs:172:5 [INFO] [stdout] | [INFO] [stdout] 172 | r8: GcRef, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `r9` [INFO] [stdout] --> tests/tests.rs:173:5 [INFO] [stdout] | [INFO] [stdout] 173 | r9: GcRef, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `r10` [INFO] [stdout] --> tests/tests.rs:174:5 [INFO] [stdout] | [INFO] [stdout] 174 | r10: GcRef, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.82s [INFO] running `Command { std: "docker" "inspect" "1e63898b6b907fa67b572d5159d421d5138eb74e043edbceffd587ed7a4cac02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e63898b6b907fa67b572d5159d421d5138eb74e043edbceffd587ed7a4cac02", kill_on_drop: false }` [INFO] [stdout] 1e63898b6b907fa67b572d5159d421d5138eb74e043edbceffd587ed7a4cac02