[INFO] fetching crate shredder 0.1.2...
[INFO] testing shredder-0.1.2 against 1.47.0 for beta-1.48-2-subset
[INFO] extracting crate shredder 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate shredder 0.1.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shredder 0.1.2
[INFO] finished tweaking crates.io crate shredder 0.1.2
[INFO] tweaked toml for crates.io crate shredder 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbe595e05dbd1c26e610bcc15cf6a82f5d81a0a15e3251aef5691b894a99fcfd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dbe595e05dbd1c26e610bcc15cf6a82f5d81a0a15e3251aef5691b894a99fcfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbe595e05dbd1c26e610bcc15cf6a82f5d81a0a15e3251aef5691b894a99fcfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbe595e05dbd1c26e610bcc15cf6a82f5d81a0a15e3251aef5691b894a99fcfd", kill_on_drop: false }`
[INFO] [stdout] dbe595e05dbd1c26e610bcc15cf6a82f5d81a0a15e3251aef5691b894a99fcfd
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2d34672f3d6d6398cf7edb57e4a4047d8371436ef3c703818edc6e9aa34f8b9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b2d34672f3d6d6398cf7edb57e4a4047d8371436ef3c703818edc6e9aa34f8b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling instant v0.1.7
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling const-random v0.1.11
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling dashmap v3.11.10
[INFO] [stderr]    Compiling dynqueue v0.1.3
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling shredder_derive v0.1.1
[INFO] [stderr]    Compiling rental v0.5.5
[INFO] [stderr]    Compiling shredder v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.10s
[INFO] running `Command { std: "docker" "inspect" "b2d34672f3d6d6398cf7edb57e4a4047d8371436ef3c703818edc6e9aa34f8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2d34672f3d6d6398cf7edb57e4a4047d8371436ef3c703818edc6e9aa34f8b9", kill_on_drop: false }`
[INFO] [stdout] b2d34672f3d6d6398cf7edb57e4a4047d8371436ef3c703818edc6e9aa34f8b9
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4ceb65a4570b204b5eb2c5ae35c882582beb8a0b07440ddf638615fc7c473d3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f4ceb65a4570b204b5eb2c5ae35c882582beb8a0b07440ddf638615fc7c473d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling trybuild v1.0.35
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling shredder v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 51.39s
[INFO] running `Command { std: "docker" "inspect" "f4ceb65a4570b204b5eb2c5ae35c882582beb8a0b07440ddf638615fc7c473d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4ceb65a4570b204b5eb2c5ae35c882582beb8a0b07440ddf638615fc7c473d3", kill_on_drop: false }`
[INFO] [stdout] f4ceb65a4570b204b5eb2c5ae35c882582beb8a0b07440ddf638615fc7c473d3
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9e7a3761b2c0e6d2b360e2fdd48547a2593a562a841ffebe0a81577687529080
[INFO] running `Command { std: "docker" "start" "-a" "9e7a3761b2c0e6d2b360e2fdd48547a2593a562a841ffebe0a81577687529080", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/shredder-0ff9f3084e6a48b8
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test finalize::test::finalize_no_panic_i128 ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_i8 ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_isize ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_u16 ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_u128 ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_u8 ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_u32 ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_i32 ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_i16 ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_i64 ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_u64 ... ok
[INFO] [stdout] test lockout::test::warrant_prevents_exclusive_warrant ... ok
[INFO] [stdout] test finalize::test::finalize_no_panic_usize ... ok
[INFO] [stdout] test lockout::test::multiple_warrants ... ok
[INFO] [stdout] test scan::std_impls::test::cell_scans ... ok
[INFO] [stdout] test scan::std_impls::test::vec_scans_correctly ... ok
[INFO] [stdout] test lockout::test::exclusive_warrant_works_by_itself ... ok
[INFO] [stdout] test scan::std_impls::test::unpoisoned_rwlock_scans ... ok
[INFO] [stdout] test scan::std_impls::test::unpoisoned_mutex_scans ... ok
[INFO] [stdout] test scan::std_impls::test::poisoned_mutex_scans ... ok
[INFO] [stdout] test scan::std_impls::test::poisoned_rwlock_scans ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/derive_macro-a399d9c0f0766e82
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling instant v0.1.7
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling const-random v0.1.11
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling dashmap v3.11.10
[INFO] [stderr]    Compiling dynqueue v0.1.3
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling shredder_derive v0.1.1
[INFO] [stdout] test derive_trybuild ... test derive_trybuild has been running for over 60 seconds
[INFO] [stderr]    Compiling rental v0.5.5
[INFO] [stderr]    Compiling shredder v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling shredder-tests v0.0.0 (/opt/rustwide/target/tests/shredder)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] test basic_scanables.rs [should pass] ... ok
[INFO] [stderr] test non_gc_safe.rs [should fail to compile] ... ok
[INFO] [stderr] test non_scan.rs [should fail to compile] ... ok
[INFO] [stdout] test derive_trybuild ... ok
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration-30f02a364dc9afa3
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test alloc_directed_graph_node_gc ... ok
[INFO] [stdout] test alloc_u32_gc ... ok
[INFO] [stdout] test drop_run ... ok
[INFO] [stdout] test finalizers_run ... ok
[INFO] [stdout] test scan_skip_problem ... ok
[INFO] [stdout] test clone_directed_graph_chain_gc ... ok
[INFO] [stdout] test clone_directed_graph_node_gc ... ok
[INFO] [stdout] test no_drop_functional ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/readme-42d1ad9d2d23bcb0
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test _main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stress-357ed9e5d43fdac0
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test stress_test ... test stress_test has been running for over 60 seconds
[INFO] [stdout] test stress_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests shredder
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/scan/mod.rs - scan::Scan (line 48) ... ok
[INFO] [stdout] test src/scan/mod.rs - scan::Scan (line 77) ... ok
[INFO] [stdout] test src/scan/mod.rs - scan::Scan (line 60) ... ok
[INFO] [stdout] test src/scan/mod.rs - scan::Scan (line 37) ... ok
[INFO] [stdout] test src/lib.rs - synchronize_destructors (line 163) ... ok
[INFO] [stdout] test src/lib.rs - set_gc_trigger_percent (line 126) ... ok
[INFO] [stdout] test src/lib.rs - collect (line 149) ... ok
[INFO] [stdout] test src/lib.rs - run_with_gc_cleanup (line 182) ... ok
[INFO] [stdout] test src/lib.rs - number_of_active_handles (line 104) ... ok
[INFO] [stdout] test src/lib.rs - number_of_tracked_allocations (line 90) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9e7a3761b2c0e6d2b360e2fdd48547a2593a562a841ffebe0a81577687529080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e7a3761b2c0e6d2b360e2fdd48547a2593a562a841ffebe0a81577687529080", kill_on_drop: false }`
[INFO] [stdout] 9e7a3761b2c0e6d2b360e2fdd48547a2593a562a841ffebe0a81577687529080