Dec 14 07:02:47.541 INFO testing PaulGrandperrin/playground against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 07:02:47.541 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 07:02:48.135 INFO [stdout] 1b1f60f185f8ea6a3108a1a42a983b1a3c7d90b4ca02c979d0f6be630710aaa0
Dec 14 07:02:48.143 INFO running `"docker" "start" "-a" "1b1f60f185f8ea6a3108a1a42a983b1a3c7d90b4ca02c979d0f6be630710aaa0"`
Dec 14 07:02:49.564 INFO [stderr] usermod: no changes
Dec 14 07:02:49.795 INFO [stderr]    Compiling bincode v1.0.1
Dec 14 07:02:51.179 INFO [stderr]    Compiling playground v0.1.0 (/source)
Dec 14 07:02:52.687 INFO [stderr] warning: unused import: `itertools::Itertools`
Dec 14 07:02:52.687 INFO [stderr]  --> src/algorithm.rs:4:5
Dec 14 07:02:52.687 INFO [stderr]   |
Dec 14 07:02:52.687 INFO [stderr] 4 | use itertools::Itertools;
Dec 14 07:02:52.687 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:52.687 INFO [stderr]   |
Dec 14 07:02:52.687 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 07:02:52.687 INFO [stderr] 
Dec 14 07:02:52.687 INFO [stderr] warning: unused import: `crate::common::ConstObjType`
Dec 14 07:02:52.687 INFO [stderr]  --> src/context.rs:2:5
Dec 14 07:02:52.687 INFO [stderr]   |
Dec 14 07:02:52.687 INFO [stderr] 2 | use crate::common::ConstObjType;
Dec 14 07:02:52.687 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:52.687 INFO [stderr] 
Dec 14 07:02:52.687 INFO [stderr] warning: unused import: `crate::non_volatile::object::object_type::ObjectType`
Dec 14 07:02:52.687 INFO [stderr]  --> src/context.rs:5:5
Dec 14 07:02:52.687 INFO [stderr]   |
Dec 14 07:02:52.687 INFO [stderr] 5 | use crate::non_volatile::object::object_type::ObjectType;
Dec 14 07:02:52.687 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:52.690 INFO [stderr] 
Dec 14 07:02:52.690 INFO [stderr] warning: unused imports: `LeafType`, `Node`
Dec 14 07:02:52.690 INFO [stderr]  --> src/context.rs:6:51
Dec 14 07:02:52.690 INFO [stderr]   |
Dec 14 07:02:52.690 INFO [stderr] 6 | use crate::non_volatile::object::tree::{LeafNode, LeafType, Node, NodeEntry};
Dec 14 07:02:52.690 INFO [stderr]   |                                                   ^^^^^^^^  ^^^^
Dec 14 07:02:52.690 INFO [stderr] 
Dec 14 07:02:52.690 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 14 07:02:52.690 INFO [stderr]   --> src/context.rs:10:5
Dec 14 07:02:52.690 INFO [stderr]    |
Dec 14 07:02:52.690 INFO [stderr] 10 | use std::rc::Rc;
Dec 14 07:02:52.690 INFO [stderr]    |     ^^^^^^^^^^^
Dec 14 07:02:52.690 INFO [stderr] 
Dec 14 07:02:52.690 INFO [stderr] warning: unused import: `std::borrow::Borrow`
Dec 14 07:02:52.690 INFO [stderr]  --> src/non_volatile/object/any_rc_object.rs:6:5
Dec 14 07:02:52.690 INFO [stderr]   |
Dec 14 07:02:52.690 INFO [stderr] 6 | use std::borrow::Borrow;
Dec 14 07:02:52.690 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:52.690 INFO [stderr] 
Dec 14 07:02:52.690 INFO [stderr] warning: unused import: `TryInto`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/any_rc_object.rs:7:29
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 7 | use std::convert::{TryFrom, TryInto};
Dec 14 07:02:52.691 INFO [stderr]   |                             ^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused imports: `BufMut`, `Buf`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/object_pointer.rs:6:13
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 6 | use bytes::{Buf, BufMut};
Dec 14 07:02:52.691 INFO [stderr]   |             ^^^  ^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused import: `std::io::Cursor`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/object_pointer.rs:7:5
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 7 | use std::io::Cursor;
Dec 14 07:02:52.691 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `SeqAccess`, `Visitor`, `self`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/tree/internal_node.rs:3:17
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 3 | use serde::de::{self, Deserialize, Deserializer, SeqAccess, Visitor};
Dec 14 07:02:52.691 INFO [stderr]   |                 ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused imports: `SerializeStruct`, `Serialize`, `Serializer`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/tree/internal_node.rs:4:18
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 4 | use serde::ser::{Serialize, SerializeStruct, Serializer};
Dec 14 07:02:52.691 INFO [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused import: `super::super::object_type::ObjectType`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/tree/leaf_node.rs:1:5
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 1 | use super::super::object_type::ObjectType;
Dec 14 07:02:52.691 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused import: `std::fmt`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/tree/leaf_node.rs:4:5
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 4 | use std::fmt;
Dec 14 07:02:52.691 INFO [stderr]   |     ^^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused import: `std::mem`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/tree/leaf_node.rs:5:5
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 5 | use std::mem;
Dec 14 07:02:52.691 INFO [stderr]   |     ^^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `SeqAccess`, `Visitor`, `self`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/tree/leaf_node.rs:7:17
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 7 | use serde::de::{self, Deserialize, Deserializer, SeqAccess, Visitor};
Dec 14 07:02:52.691 INFO [stderr]   |                 ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused imports: `SerializeStruct`, `Serialize`, `Serializer`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/tree/leaf_node.rs:8:18
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 8 | use serde::ser::{Serialize, SerializeStruct, Serializer};
Dec 14 07:02:52.691 INFO [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused imports: `BufMut`, `Buf`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/uberblock.rs:4:13
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 4 | use bytes::{Buf, BufMut};
Dec 14 07:02:52.691 INFO [stderr]   |             ^^^  ^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused import: `failure::format_err`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/uberblock.rs:5:5
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 5 | use failure::format_err;
Dec 14 07:02:52.691 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused import: `std::io::Cursor`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/uberblock.rs:7:5
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 7 | use std::io::Cursor;
Dec 14 07:02:52.691 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.691 INFO [stderr] warning: unused import: `std::mem`
Dec 14 07:02:52.691 INFO [stderr]  --> src/non_volatile/object/uberblock.rs:8:5
Dec 14 07:02:52.691 INFO [stderr]   |
Dec 14 07:02:52.691 INFO [stderr] 8 | use std::mem;
Dec 14 07:02:52.691 INFO [stderr]   |     ^^^^^^^^
Dec 14 07:02:52.691 INFO [stderr] 
Dec 14 07:02:52.968 INFO [stderr] warning: unused import: `crate::common::ConstObjType`
Dec 14 07:02:52.968 INFO [stderr]  --> src/non_volatile/manager.rs:7:5
Dec 14 07:02:52.968 INFO [stderr]   |
Dec 14 07:02:52.968 INFO [stderr] 7 | use crate::common::ConstObjType;
Dec 14 07:02:52.968 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:52.968 INFO [stderr] 
Dec 14 07:02:53.031 INFO [stderr] warning: variable does not need to be mutable
Dec 14 07:02:53.031 INFO [stderr]   --> src/context.rs:71:13
Dec 14 07:02:53.031 INFO [stderr]    |
Dec 14 07:02:53.031 INFO [stderr] 71 |         let mut leaf = self
Dec 14 07:02:53.031 INFO [stderr]    |             ----^^^^
Dec 14 07:02:53.031 INFO [stderr]    |             |
Dec 14 07:02:53.031 INFO [stderr]    |             help: remove this `mut`
Dec 14 07:02:53.031 INFO [stderr]    |
Dec 14 07:02:53.031 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 07:02:53.031 INFO [stderr] 
Dec 14 07:02:53.175 INFO [stderr] warning: the feature `dbg_macro` has been stable since 1.32.0 and no longer requires an attribute to enable
Dec 14 07:02:53.175 INFO [stderr]  --> src/main.rs:5:5
Dec 14 07:02:53.175 INFO [stderr]   |
Dec 14 07:02:53.175 INFO [stderr] 5 |     dbg_macro,
Dec 14 07:02:53.175 INFO [stderr]   |     ^^^^^^^^^
Dec 14 07:02:53.175 INFO [stderr]   |
Dec 14 07:02:53.175 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 14 07:02:53.175 INFO [stderr] 
Dec 14 07:02:53.175 INFO [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used
Dec 14 07:02:53.175 INFO [stderr]   --> src/non_volatile/manager.rs:50:13
Dec 14 07:02:53.175 INFO [stderr]    |
Dec 14 07:02:53.175 INFO [stderr] 50 |             nv_blk_dev.write(i * Uberblock::RAW_SIZE as u64, &ub_raw);
Dec 14 07:02:53.175 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:53.175 INFO [stderr]    |
Dec 14 07:02:53.175 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 07:02:53.175 INFO [stderr] 
Dec 14 07:02:53.175 INFO [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used
Dec 14 07:02:53.175 INFO [stderr]    --> src/non_volatile/manager.rs:104:9
Dec 14 07:02:53.175 INFO [stderr]     |
Dec 14 07:02:53.175 INFO [stderr] 104 |         self.nv_blk_dev.write(ub_offset, &ub_raw);
Dec 14 07:02:53.175 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:53.175 INFO [stderr] 
Dec 14 07:02:53.175 INFO [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used
Dec 14 07:02:53.175 INFO [stderr]    --> src/non_volatile/manager.rs:155:9
Dec 14 07:02:53.175 INFO [stderr]     |
Dec 14 07:02:53.175 INFO [stderr] 155 |         nv_blk_dev.write(offset, &obj_raw);
Dec 14 07:02:53.175 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:53.175 INFO [stderr] 
Dec 14 07:02:55.192 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.59s
Dec 14 07:02:55.200 INFO [stderr] su: No module specific data is present
Dec 14 07:02:55.529 INFO running `"docker" "inspect" "1b1f60f185f8ea6a3108a1a42a983b1a3c7d90b4ca02c979d0f6be630710aaa0"`
Dec 14 07:02:55.598 INFO running `"docker" "rm" "-f" "1b1f60f185f8ea6a3108a1a42a983b1a3c7d90b4ca02c979d0f6be630710aaa0"`
Dec 14 07:02:55.669 INFO [stdout] 1b1f60f185f8ea6a3108a1a42a983b1a3c7d90b4ca02c979d0f6be630710aaa0
Dec 14 07:02:55.671 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 07:02:55.892 INFO [stdout] 681680849f1101ee6d21587dd119f1e7106a4891b8105496e181959d4ff675a3
Dec 14 07:02:55.892 INFO running `"docker" "start" "-a" "681680849f1101ee6d21587dd119f1e7106a4891b8105496e181959d4ff675a3"`
Dec 14 07:02:56.497 INFO [stderr] usermod: no changes
Dec 14 07:02:56.609 INFO [stderr]    Compiling playground v0.1.0 (/source)
Dec 14 07:02:57.534 INFO [stderr] warning: unused import: `itertools::Itertools`
Dec 14 07:02:57.534 INFO [stderr]  --> src/algorithm.rs:4:5
Dec 14 07:02:57.534 INFO [stderr]   |
Dec 14 07:02:57.534 INFO [stderr] 4 | use itertools::Itertools;
Dec 14 07:02:57.534 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:57.534 INFO [stderr]   |
Dec 14 07:02:57.534 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 07:02:57.534 INFO [stderr] 
Dec 14 07:02:57.534 INFO [stderr] warning: unused import: `crate::common::ConstObjType`
Dec 14 07:02:57.534 INFO [stderr]  --> src/context.rs:2:5
Dec 14 07:02:57.534 INFO [stderr]   |
Dec 14 07:02:57.534 INFO [stderr] 2 | use crate::common::ConstObjType;
Dec 14 07:02:57.534 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:57.534 INFO [stderr] 
Dec 14 07:02:57.534 INFO [stderr] warning: unused import: `crate::non_volatile::object::object_type::ObjectType`
Dec 14 07:02:57.534 INFO [stderr]  --> src/context.rs:5:5
Dec 14 07:02:57.534 INFO [stderr]   |
Dec 14 07:02:57.534 INFO [stderr] 5 | use crate::non_volatile::object::object_type::ObjectType;
Dec 14 07:02:57.534 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:57.534 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused imports: `LeafType`, `Node`
Dec 14 07:02:57.535 INFO [stderr]  --> src/context.rs:6:51
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 6 | use crate::non_volatile::object::tree::{LeafNode, LeafType, Node, NodeEntry};
Dec 14 07:02:57.535 INFO [stderr]   |                                                   ^^^^^^^^  ^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 14 07:02:57.535 INFO [stderr]   --> src/context.rs:10:5
Dec 14 07:02:57.535 INFO [stderr]    |
Dec 14 07:02:57.535 INFO [stderr] 10 | use std::rc::Rc;
Dec 14 07:02:57.535 INFO [stderr]    |     ^^^^^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused import: `std::borrow::Borrow`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/any_rc_object.rs:6:5
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 6 | use std::borrow::Borrow;
Dec 14 07:02:57.535 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused import: `TryInto`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/any_rc_object.rs:7:29
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 7 | use std::convert::{TryFrom, TryInto};
Dec 14 07:02:57.535 INFO [stderr]   |                             ^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused imports: `BufMut`, `Buf`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/object_pointer.rs:6:13
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 6 | use bytes::{Buf, BufMut};
Dec 14 07:02:57.535 INFO [stderr]   |             ^^^  ^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused import: `std::io::Cursor`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/object_pointer.rs:7:5
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 7 | use std::io::Cursor;
Dec 14 07:02:57.535 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `SeqAccess`, `Visitor`, `self`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/tree/internal_node.rs:3:17
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 3 | use serde::de::{self, Deserialize, Deserializer, SeqAccess, Visitor};
Dec 14 07:02:57.535 INFO [stderr]   |                 ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused imports: `SerializeStruct`, `Serialize`, `Serializer`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/tree/internal_node.rs:4:18
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 4 | use serde::ser::{Serialize, SerializeStruct, Serializer};
Dec 14 07:02:57.535 INFO [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused import: `super::super::object_type::ObjectType`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/tree/leaf_node.rs:1:5
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 1 | use super::super::object_type::ObjectType;
Dec 14 07:02:57.535 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused import: `std::fmt`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/tree/leaf_node.rs:4:5
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 4 | use std::fmt;
Dec 14 07:02:57.535 INFO [stderr]   |     ^^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused import: `std::mem`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/tree/leaf_node.rs:5:5
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 5 | use std::mem;
Dec 14 07:02:57.535 INFO [stderr]   |     ^^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `SeqAccess`, `Visitor`, `self`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/tree/leaf_node.rs:7:17
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 7 | use serde::de::{self, Deserialize, Deserializer, SeqAccess, Visitor};
Dec 14 07:02:57.535 INFO [stderr]   |                 ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused imports: `SerializeStruct`, `Serialize`, `Serializer`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/tree/leaf_node.rs:8:18
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 8 | use serde::ser::{Serialize, SerializeStruct, Serializer};
Dec 14 07:02:57.535 INFO [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused imports: `BufMut`, `Buf`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/uberblock.rs:4:13
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 4 | use bytes::{Buf, BufMut};
Dec 14 07:02:57.535 INFO [stderr]   |             ^^^  ^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused import: `failure::format_err`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/uberblock.rs:5:5
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 5 | use failure::format_err;
Dec 14 07:02:57.535 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:57.535 INFO [stderr] 
Dec 14 07:02:57.535 INFO [stderr] warning: unused import: `std::io::Cursor`
Dec 14 07:02:57.535 INFO [stderr]  --> src/non_volatile/object/uberblock.rs:7:5
Dec 14 07:02:57.535 INFO [stderr]   |
Dec 14 07:02:57.535 INFO [stderr] 7 | use std::io::Cursor;
Dec 14 07:02:57.535 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 14 07:02:57.536 INFO [stderr] 
Dec 14 07:02:57.536 INFO [stderr] warning: unused import: `std::mem`
Dec 14 07:02:57.536 INFO [stderr]  --> src/non_volatile/object/uberblock.rs:8:5
Dec 14 07:02:57.536 INFO [stderr]   |
Dec 14 07:02:57.536 INFO [stderr] 8 | use std::mem;
Dec 14 07:02:57.536 INFO [stderr]   |     ^^^^^^^^
Dec 14 07:02:57.536 INFO [stderr] 
Dec 14 07:02:57.865 INFO [stderr] warning: unused import: `crate::common::ConstObjType`
Dec 14 07:02:57.866 INFO [stderr]  --> src/non_volatile/manager.rs:7:5
Dec 14 07:02:57.866 INFO [stderr]   |
Dec 14 07:02:57.866 INFO [stderr] 7 | use crate::common::ConstObjType;
Dec 14 07:02:57.867 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:57.867 INFO [stderr] 
Dec 14 07:02:57.989 INFO [stderr] warning: variable does not need to be mutable
Dec 14 07:02:57.989 INFO [stderr]   --> src/context.rs:71:13
Dec 14 07:02:57.989 INFO [stderr]    |
Dec 14 07:02:57.989 INFO [stderr] 71 |         let mut leaf = self
Dec 14 07:02:57.989 INFO [stderr]    |             ----^^^^
Dec 14 07:02:57.989 INFO [stderr]    |             |
Dec 14 07:02:57.989 INFO [stderr]    |             help: remove this `mut`
Dec 14 07:02:57.989 INFO [stderr]    |
Dec 14 07:02:57.989 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 07:02:57.989 INFO [stderr] 
Dec 14 07:02:58.087 INFO [stderr] warning: the feature `dbg_macro` has been stable since 1.32.0 and no longer requires an attribute to enable
Dec 14 07:02:58.087 INFO [stderr]  --> src/main.rs:5:5
Dec 14 07:02:58.087 INFO [stderr]   |
Dec 14 07:02:58.087 INFO [stderr] 5 |     dbg_macro,
Dec 14 07:02:58.087 INFO [stderr]   |     ^^^^^^^^^
Dec 14 07:02:58.087 INFO [stderr]   |
Dec 14 07:02:58.087 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 14 07:02:58.087 INFO [stderr] 
Dec 14 07:02:58.091 INFO [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used
Dec 14 07:02:58.091 INFO [stderr]   --> src/non_volatile/manager.rs:50:13
Dec 14 07:02:58.091 INFO [stderr]    |
Dec 14 07:02:58.091 INFO [stderr] 50 |             nv_blk_dev.write(i * Uberblock::RAW_SIZE as u64, &ub_raw);
Dec 14 07:02:58.091 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:58.091 INFO [stderr]    |
Dec 14 07:02:58.091 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 07:02:58.091 INFO [stderr] 
Dec 14 07:02:58.091 INFO [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used
Dec 14 07:02:58.091 INFO [stderr]    --> src/non_volatile/manager.rs:104:9
Dec 14 07:02:58.091 INFO [stderr]     |
Dec 14 07:02:58.091 INFO [stderr] 104 |         self.nv_blk_dev.write(ub_offset, &ub_raw);
Dec 14 07:02:58.091 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:58.091 INFO [stderr] 
Dec 14 07:02:58.091 INFO [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used
Dec 14 07:02:58.091 INFO [stderr]    --> src/non_volatile/manager.rs:155:9
Dec 14 07:02:58.091 INFO [stderr]     |
Dec 14 07:02:58.091 INFO [stderr] 155 |         nv_blk_dev.write(offset, &obj_raw);
Dec 14 07:02:58.091 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:02:58.091 INFO [stderr] 
Dec 14 07:02:58.322 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
Dec 14 07:02:58.327 INFO [stderr] su: No module specific data is present
Dec 14 07:02:58.859 INFO running `"docker" "inspect" "681680849f1101ee6d21587dd119f1e7106a4891b8105496e181959d4ff675a3"`
Dec 14 07:02:59.057 INFO running `"docker" "rm" "-f" "681680849f1101ee6d21587dd119f1e7106a4891b8105496e181959d4ff675a3"`
Dec 14 07:02:59.282 INFO [stdout] 681680849f1101ee6d21587dd119f1e7106a4891b8105496e181959d4ff675a3
Dec 14 07:02:59.285 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 07:02:59.558 INFO [stdout] ad1225c99588456e72b53d55a5a5d59b9202705868b197dba6af1524f521abbe
Dec 14 07:02:59.560 INFO running `"docker" "start" "-a" "ad1225c99588456e72b53d55a5a5d59b9202705868b197dba6af1524f521abbe"`
Dec 14 07:03:00.370 INFO [stderr] usermod: no changes
Dec 14 07:03:00.487 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
Dec 14 07:03:00.500 INFO [stderr]      Running /target/debug/deps/playground-f7bf3c3415823605
Dec 14 07:03:00.503 INFO [stdout] 
Dec 14 07:03:00.503 INFO [stdout] running 0 tests
Dec 14 07:03:00.503 INFO [stdout] 
Dec 14 07:03:00.504 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 07:03:00.504 INFO [stdout] 
Dec 14 07:03:00.505 INFO [stderr] su: No module specific data is present
Dec 14 07:03:00.820 INFO running `"docker" "inspect" "ad1225c99588456e72b53d55a5a5d59b9202705868b197dba6af1524f521abbe"`
Dec 14 07:03:00.922 INFO running `"docker" "rm" "-f" "ad1225c99588456e72b53d55a5a5d59b9202705868b197dba6af1524f521abbe"`
Dec 14 07:03:01.026 INFO [stdout] ad1225c99588456e72b53d55a5a5d59b9202705868b197dba6af1524f521abbe