[INFO] updating cached repository PaulGrandperrin/playground [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/PaulGrandperrin/playground [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/PaulGrandperrin/playground" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/PaulGrandperrin/playground"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/PaulGrandperrin/playground'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/PaulGrandperrin/playground" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/PaulGrandperrin/playground"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/PaulGrandperrin/playground'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 8c7a591f61653f011e744c9832fbf54bcdd3c709 [INFO] sha for GitHub repo PaulGrandperrin/playground: 8c7a591f61653f011e744c9832fbf54bcdd3c709 [INFO] validating manifest of PaulGrandperrin/playground on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of PaulGrandperrin/playground on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing PaulGrandperrin/playground [INFO] finished frobbing PaulGrandperrin/playground [INFO] frobbed toml for PaulGrandperrin/playground written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/PaulGrandperrin/playground/Cargo.toml [INFO] started frobbing PaulGrandperrin/playground [INFO] finished frobbing PaulGrandperrin/playground [INFO] frobbed toml for PaulGrandperrin/playground written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/PaulGrandperrin/playground/Cargo.toml [INFO] crate PaulGrandperrin/playground has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing PaulGrandperrin/playground against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/PaulGrandperrin/playground:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"` [INFO] [stdout] 6861a34c028cff7b2a8621c49511fe28fc3b4a6e2f81070a177e45057df06324 [INFO] running `"docker" "start" "-a" "6861a34c028cff7b2a8621c49511fe28fc3b4a6e2f81070a177e45057df06324"` [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Compiling bincode v1.0.1 [INFO] [stderr] Compiling failure v0.1.3 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling num v0.2.0 [INFO] [stderr] Compiling playground v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::collections::BTreeMap` [INFO] [stderr] --> src/algorithm.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::BTreeMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `itertools::Itertools` [INFO] [stderr] --> src/algorithm.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use itertools::Itertools; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::common::ConstObjType` [INFO] [stderr] --> src/context.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use crate::common::ConstObjType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::non_volatile::object::object_type::ObjectType` [INFO] [stderr] --> src/context.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use crate::non_volatile::object::object_type::ObjectType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `LeafType`, `NodeEntry`, `Node` [INFO] [stderr] --> src/context.rs:6:51 [INFO] [stderr] | [INFO] [stderr] 6 | use crate::non_volatile::object::tree::{LeafNode, LeafType, Node, NodeEntry}; [INFO] [stderr] | ^^^^^^^^ ^^^^ ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Deref` [INFO] [stderr] --> src/context.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::ops::Deref; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/context.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::Borrow` [INFO] [stderr] --> src/non_volatile/object/any_rc_object.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::borrow::Borrow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `TryInto` [INFO] [stderr] --> src/non_volatile/object/any_rc_object.rs:7:29 [INFO] [stderr] | [INFO] [stderr] 7 | use std::convert::{TryFrom, TryInto}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `BufMut`, `Buf` [INFO] [stderr] --> src/non_volatile/object/object_pointer.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | use bytes::{Buf, BufMut}; [INFO] [stderr] | ^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Cursor` [INFO] [stderr] --> src/non_volatile/object/object_pointer.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::io::Cursor; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `SeqAccess`, `Visitor`, `self` [INFO] [stderr] --> src/non_volatile/object/tree/internal_node.rs:3:17 [INFO] [stderr] | [INFO] [stderr] 3 | use serde::de::{self, Deserialize, Deserializer, SeqAccess, Visitor}; [INFO] [stderr] | ^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^ ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `SerializeStruct`, `Serialize`, `Serializer` [INFO] [stderr] --> src/non_volatile/object/tree/internal_node.rs:4:18 [INFO] [stderr] | [INFO] [stderr] 4 | use serde::ser::{Serialize, SerializeStruct, Serializer}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::super::object_type::ObjectType` [INFO] [stderr] --> src/non_volatile/object/tree/leaf_node.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use super::super::object_type::ObjectType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt` [INFO] [stderr] --> src/non_volatile/object/tree/leaf_node.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::fmt; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/non_volatile/object/tree/leaf_node.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `SeqAccess`, `Visitor`, `self` [INFO] [stderr] --> src/non_volatile/object/tree/leaf_node.rs:7:17 [INFO] [stderr] | [INFO] [stderr] 7 | use serde::de::{self, Deserialize, Deserializer, SeqAccess, Visitor}; [INFO] [stderr] | ^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^ ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `SerializeStruct`, `Serialize`, `Serializer` [INFO] [stderr] --> src/non_volatile/object/tree/leaf_node.rs:8:18 [INFO] [stderr] | [INFO] [stderr] 8 | use serde::ser::{Serialize, SerializeStruct, Serializer}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `BufMut`, `Buf` [INFO] [stderr] --> src/non_volatile/object/uberblock.rs:4:13 [INFO] [stderr] | [INFO] [stderr] 4 | use bytes::{Buf, BufMut}; [INFO] [stderr] | ^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `failure::format_err` [INFO] [stderr] --> src/non_volatile/object/uberblock.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use failure::format_err; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Cursor` [INFO] [stderr] --> src/non_volatile/object/uberblock.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::io::Cursor; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/non_volatile/object/uberblock.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::common::ConstObjType` [INFO] [stderr] --> src/non_volatile/manager.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use crate::common::ConstObjType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | uniform_paths, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(stable_features)] on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `dbg_macro` has been stable since 1.32.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | dbg_macro, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stderr] --> src/non_volatile/manager.rs:50:13 [INFO] [stderr] | [INFO] [stderr] 50 | nv_blk_dev.write(i * Uberblock::RAW_SIZE as u64, &ub_raw); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stderr] --> src/non_volatile/manager.rs:104:9 [INFO] [stderr] | [INFO] [stderr] 104 | self.nv_blk_dev.write(ub_offset, &ub_raw); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stderr] --> src/non_volatile/manager.rs:155:9 [INFO] [stderr] | [INFO] [stderr] 155 | nv_blk_dev.write(offset, &obj_raw); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.25s [INFO] running `"docker" "inspect" "6861a34c028cff7b2a8621c49511fe28fc3b4a6e2f81070a177e45057df06324"` [INFO] running `"docker" "rm" "-f" "6861a34c028cff7b2a8621c49511fe28fc3b4a6e2f81070a177e45057df06324"` [INFO] [stdout] 6861a34c028cff7b2a8621c49511fe28fc3b4a6e2f81070a177e45057df06324 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/PaulGrandperrin/playground:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] 0adfab2226c3cc924ff162fb78197e92ff36aa317cbcbf8c46e7baf2bb0e8f8e [INFO] running `"docker" "start" "-a" "0adfab2226c3cc924ff162fb78197e92ff36aa317cbcbf8c46e7baf2bb0e8f8e"` [INFO] [stderr] Compiling playground v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::collections::BTreeMap` [INFO] [stderr] --> src/algorithm.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::BTreeMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `itertools::Itertools` [INFO] [stderr] --> src/algorithm.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use itertools::Itertools; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::common::ConstObjType` [INFO] [stderr] --> src/context.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use crate::common::ConstObjType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::non_volatile::object::object_type::ObjectType` [INFO] [stderr] --> src/context.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use crate::non_volatile::object::object_type::ObjectType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `LeafType`, `NodeEntry`, `Node` [INFO] [stderr] --> src/context.rs:6:51 [INFO] [stderr] | [INFO] [stderr] 6 | use crate::non_volatile::object::tree::{LeafNode, LeafType, Node, NodeEntry}; [INFO] [stderr] | ^^^^^^^^ ^^^^ ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Deref` [INFO] [stderr] --> src/context.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::ops::Deref; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/context.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::Borrow` [INFO] [stderr] --> src/non_volatile/object/any_rc_object.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::borrow::Borrow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `TryInto` [INFO] [stderr] --> src/non_volatile/object/any_rc_object.rs:7:29 [INFO] [stderr] | [INFO] [stderr] 7 | use std::convert::{TryFrom, TryInto}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `BufMut`, `Buf` [INFO] [stderr] --> src/non_volatile/object/object_pointer.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | use bytes::{Buf, BufMut}; [INFO] [stderr] | ^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Cursor` [INFO] [stderr] --> src/non_volatile/object/object_pointer.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::io::Cursor; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `SeqAccess`, `Visitor`, `self` [INFO] [stderr] --> src/non_volatile/object/tree/internal_node.rs:3:17 [INFO] [stderr] | [INFO] [stderr] 3 | use serde::de::{self, Deserialize, Deserializer, SeqAccess, Visitor}; [INFO] [stderr] | ^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^ ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `SerializeStruct`, `Serialize`, `Serializer` [INFO] [stderr] --> src/non_volatile/object/tree/internal_node.rs:4:18 [INFO] [stderr] | [INFO] [stderr] 4 | use serde::ser::{Serialize, SerializeStruct, Serializer}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::super::object_type::ObjectType` [INFO] [stderr] --> src/non_volatile/object/tree/leaf_node.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use super::super::object_type::ObjectType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt` [INFO] [stderr] --> src/non_volatile/object/tree/leaf_node.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::fmt; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/non_volatile/object/tree/leaf_node.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `SeqAccess`, `Visitor`, `self` [INFO] [stderr] --> src/non_volatile/object/tree/leaf_node.rs:7:17 [INFO] [stderr] | [INFO] [stderr] 7 | use serde::de::{self, Deserialize, Deserializer, SeqAccess, Visitor}; [INFO] [stderr] | ^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^ ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `SerializeStruct`, `Serialize`, `Serializer` [INFO] [stderr] --> src/non_volatile/object/tree/leaf_node.rs:8:18 [INFO] [stderr] | [INFO] [stderr] 8 | use serde::ser::{Serialize, SerializeStruct, Serializer}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `BufMut`, `Buf` [INFO] [stderr] --> src/non_volatile/object/uberblock.rs:4:13 [INFO] [stderr] | [INFO] [stderr] 4 | use bytes::{Buf, BufMut}; [INFO] [stderr] | ^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `failure::format_err` [INFO] [stderr] --> src/non_volatile/object/uberblock.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use failure::format_err; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Cursor` [INFO] [stderr] --> src/non_volatile/object/uberblock.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::io::Cursor; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/non_volatile/object/uberblock.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::common::ConstObjType` [INFO] [stderr] --> src/non_volatile/manager.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use crate::common::ConstObjType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | uniform_paths, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(stable_features)] on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `dbg_macro` has been stable since 1.32.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | dbg_macro, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stderr] --> src/non_volatile/manager.rs:50:13 [INFO] [stderr] | [INFO] [stderr] 50 | nv_blk_dev.write(i * Uberblock::RAW_SIZE as u64, &ub_raw); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stderr] --> src/non_volatile/manager.rs:104:9 [INFO] [stderr] | [INFO] [stderr] 104 | self.nv_blk_dev.write(ub_offset, &ub_raw); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stderr] --> src/non_volatile/manager.rs:155:9 [INFO] [stderr] | [INFO] [stderr] 155 | nv_blk_dev.write(offset, &obj_raw); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.14s [INFO] running `"docker" "inspect" "0adfab2226c3cc924ff162fb78197e92ff36aa317cbcbf8c46e7baf2bb0e8f8e"` [INFO] running `"docker" "rm" "-f" "0adfab2226c3cc924ff162fb78197e92ff36aa317cbcbf8c46e7baf2bb0e8f8e"` [INFO] [stdout] 0adfab2226c3cc924ff162fb78197e92ff36aa317cbcbf8c46e7baf2bb0e8f8e [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/PaulGrandperrin/playground:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"` [INFO] [stdout] 96e1215e6a2bca925deff00a9ae9b25077422014c8e595c4d90dcc8eddec556f [INFO] running `"docker" "start" "-a" "96e1215e6a2bca925deff00a9ae9b25077422014c8e595c4d90dcc8eddec556f"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.11s [INFO] [stderr] Running /opt/crater/target/debug/deps/playground-91d16d13153e83dc [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "96e1215e6a2bca925deff00a9ae9b25077422014c8e595c4d90dcc8eddec556f"` [INFO] running `"docker" "rm" "-f" "96e1215e6a2bca925deff00a9ae9b25077422014c8e595c4d90dcc8eddec556f"` [INFO] [stdout] 96e1215e6a2bca925deff00a9ae9b25077422014c8e595c4d90dcc8eddec556f