[INFO] cloning repository https://github.com/PaulGrandperrin/playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PaulGrandperrin/playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPaulGrandperrin%2Fplayground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPaulGrandperrin%2Fplayground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 572ff41ccdfa72771a37fd9ab89f37e9b5451041 [INFO] checking PaulGrandperrin/playground against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPaulGrandperrin%2Fplayground" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/PaulGrandperrin/playground on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/PaulGrandperrin/playground [INFO] finished tweaking git repo https://github.com/PaulGrandperrin/playground [INFO] tweaked toml for git repo https://github.com/PaulGrandperrin/playground written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/PaulGrandperrin/playground already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded color-backtrace v0.1.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef9b7efb7b677d403ec79d38a0a35684482c7f391225033ecb173679fb95cb74 [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" "ef9b7efb7b677d403ec79d38a0a35684482c7f391225033ecb173679fb95cb74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef9b7efb7b677d403ec79d38a0a35684482c7f391225033ecb173679fb95cb74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef9b7efb7b677d403ec79d38a0a35684482c7f391225033ecb173679fb95cb74", kill_on_drop: false }` [INFO] [stdout] ef9b7efb7b677d403ec79d38a0a35684482c7f391225033ecb173679fb95cb74 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bac10c2ced2db60574082f56dec3ed8178ecceb9a10ae77bd3325f3c3dc44f0c [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" "bac10c2ced2db60574082f56dec3ed8178ecceb9a10ae77bd3325f3c3dc44f0c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.55 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling cc v1.0.37 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Checking rustc-demangle v0.1.14 [INFO] [stderr] Compiling serde v1.0.91 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling backtrace v0.3.26 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling bincode v1.1.4 [INFO] [stderr] Checking itertools v0.8.0 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking term v0.5.2 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking color-backtrace v0.1.3 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling serde_derive v1.0.91 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking exitfailure v0.5.1 [INFO] [stderr] Checking playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::BTreeMap` [INFO] [stdout] --> src/algorithm.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::BTreeMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Insert` [INFO] [stdout] --> src/algorithm.rs:12:62 [INFO] [stdout] | [INFO] [stdout] 12 | use crate::non_volatile::object::tree::{BufferNode, Message, Insert}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::common::ConstObjType` [INFO] [stdout] --> src/algorithm.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | use crate::common::ConstObjType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/algorithm.rs:302:20 [INFO] [stdout] | [INFO] [stdout] 302 | if (num_of_candidates_for_cur_child > BUF_SIZE) { // BIG TODO find a better heuristic [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::common::ConstObjType` [INFO] [stdout] --> src/context.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::common::ConstObjType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::non_volatile::object::object_type::ObjectType` [INFO] [stdout] --> src/context.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::non_volatile::object::object_type::ObjectType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `LeafNode`, `LeafType`, `NodeEntry` [INFO] [stdout] --> src/context.rs:6:41 [INFO] [stdout] | [INFO] [stdout] 6 | use crate::non_volatile::object::tree::{LeafNode, LeafType, NodeEntry, Message, Insert}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> src/context.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::ops::Deref; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/context.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TryInto` [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:7:29 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::{TryFrom, TryInto}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufMut`, `Buf` [INFO] [stdout] --> src/non_volatile/object/object_pointer.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 6 | use bytes::{Buf, BufMut}; [INFO] [stdout] | ^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Cursor` [INFO] [stdout] --> src/non_volatile/object/object_pointer.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::Cursor; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::marker::PhantomData` [INFO] [stdout] --> src/non_volatile/object/tree.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::marker::PhantomData; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserialize`, `Deserializer`, `SeqAccess`, `Visitor`, `self` [INFO] [stdout] --> src/non_volatile/object/tree.rs:7:17 [INFO] [stdout] | [INFO] [stdout] 7 | use serde::de::{self, Deserialize, Deserializer, SeqAccess, Visitor}; [INFO] [stdout] | ^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `SerializeStruct`, `Serialize`, `Serializer` [INFO] [stdout] --> src/non_volatile/object/tree.rs:8:18 [INFO] [stdout] | [INFO] [stdout] 8 | use serde::ser::{Serialize, SerializeStruct, Serializer}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/non_volatile/object/tree/internal_node.rs:45:42 [INFO] [stdout] | [INFO] [stdout] 45 | _p: std::marker::PhantomData<(K)>, [INFO] [stdout] | ^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/non_volatile/object/tree/buffer_node.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufMut`, `Buf` [INFO] [stdout] --> src/non_volatile/object/uberblock.rs:4:13 [INFO] [stdout] | [INFO] [stdout] 4 | use bytes::{Buf, BufMut}; [INFO] [stdout] | ^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::BTreeMap` [INFO] [stdout] --> src/algorithm.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::BTreeMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `failure::format_err` [INFO] [stdout] --> src/non_volatile/object/uberblock.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use failure::format_err; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Cursor` [INFO] [stdout] --> src/non_volatile/object/uberblock.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::Cursor; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Insert` [INFO] [stdout] --> src/algorithm.rs:12:62 [INFO] [stdout] | [INFO] [stdout] 12 | use crate::non_volatile::object::tree::{BufferNode, Message, Insert}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/non_volatile/object/uberblock.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::common::ConstObjType` [INFO] [stdout] --> src/algorithm.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | use crate::common::ConstObjType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:79:31 [INFO] [stdout] | [INFO] [stdout] 79 | fn process_sortedmap(sm: &mut SortedMap<&str, &str>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SortedMap<&str, &str>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/algorithm.rs:302:20 [INFO] [stdout] | [INFO] [stdout] 302 | if (num_of_candidates_for_cur_child > BUF_SIZE) { // BIG TODO find a better heuristic [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::common::ConstObjType` [INFO] [stdout] --> src/context.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::common::ConstObjType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::non_volatile::object::object_type::ObjectType` [INFO] [stdout] --> src/context.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::non_volatile::object::object_type::ObjectType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `LeafNode`, `LeafType`, `NodeEntry` [INFO] [stdout] --> src/context.rs:6:41 [INFO] [stdout] | [INFO] [stdout] 6 | use crate::non_volatile::object::tree::{LeafNode, LeafType, NodeEntry, Message, Insert}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> src/context.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::ops::Deref; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/context.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TryInto` [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:7:29 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::{TryFrom, TryInto}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufMut`, `Buf` [INFO] [stdout] --> src/non_volatile/object/object_pointer.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 6 | use bytes::{Buf, BufMut}; [INFO] [stdout] | ^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Cursor` [INFO] [stdout] --> src/non_volatile/object/object_pointer.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::Cursor; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::marker::PhantomData` [INFO] [stdout] --> src/non_volatile/object/tree.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::marker::PhantomData; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserialize`, `Deserializer`, `SeqAccess`, `Visitor`, `self` [INFO] [stdout] --> src/non_volatile/object/tree.rs:7:17 [INFO] [stdout] | [INFO] [stdout] 7 | use serde::de::{self, Deserialize, Deserializer, SeqAccess, Visitor}; [INFO] [stdout] | ^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `SerializeStruct`, `Serialize`, `Serializer` [INFO] [stdout] --> src/non_volatile/object/tree.rs:8:18 [INFO] [stdout] | [INFO] [stdout] 8 | use serde::ser::{Serialize, SerializeStruct, Serializer}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/non_volatile/object/tree/internal_node.rs:45:42 [INFO] [stdout] | [INFO] [stdout] 45 | _p: std::marker::PhantomData<(K)>, [INFO] [stdout] | ^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/non_volatile/object/tree/buffer_node.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufMut`, `Buf` [INFO] [stdout] --> src/non_volatile/object/uberblock.rs:4:13 [INFO] [stdout] | [INFO] [stdout] 4 | use bytes::{Buf, BufMut}; [INFO] [stdout] | ^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `failure::format_err` [INFO] [stdout] --> src/non_volatile/object/uberblock.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use failure::format_err; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Cursor` [INFO] [stdout] --> src/non_volatile/object/uberblock.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::Cursor; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/non_volatile/object/uberblock.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:79:31 [INFO] [stdout] | [INFO] [stdout] 79 | fn process_sortedmap(sm: &mut SortedMap<&str, &str>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SortedMap<&str, &str>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 30 | return Ok(()); [INFO] [stdout] | ------------- any code following this expression is unreachable [INFO] [stdout] 31 | ctx.commit(); [INFO] [stdout] | ^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 30 | return Ok(()); [INFO] [stdout] | ------------- any code following this expression is unreachable [INFO] [stdout] 31 | ctx.commit(); [INFO] [stdout] | ^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::common::ConstObjType` [INFO] [stdout] --> src/non_volatile/manager.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use crate::common::ConstObjType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::common::ConstObjType` [INFO] [stdout] --> src/non_volatile/manager.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use crate::common::ConstObjType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `non_exhaustive` has been stable since 1.40.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | non_exhaustive, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | uniform_paths, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `dbg_macro` has been stable since 1.32.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | dbg_macro, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `try_from` has been stable since 1.34.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | try_from, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: Trait bound impl non_volatile::object::any_rc_object::Object: non_volatile::object::any_rc_object::Object does not depend on any type or lifetime parameters [INFO] [stdout] --> src/algorithm.rs:23:26 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn new() -> impl Object { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(trivial_bounds)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stdout] --> src/non_volatile/manager.rs:50:13 [INFO] [stdout] | [INFO] [stdout] 50 | nv_blk_dev.write(i * Uberblock::RAW_SIZE as u64, &ub_raw); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stdout] --> src/non_volatile/manager.rs:104:9 [INFO] [stdout] | [INFO] [stdout] 104 | self.nv_blk_dev.write(ub_offset, &ub_raw); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stdout] --> src/non_volatile/manager.rs:167:9 [INFO] [stdout] | [INFO] [stdout] 167 | nv_blk_dev.write(offset, &obj_raw); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 33 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' panicked at 'no errors encountered even though `delay_span_bug` issued', src/librustc_errors/lib.rs:366:17 [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate(< as std::convert::TryFrom>::Error as std::fmt::Debug>) on opaque type [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:34:52 [INFO] [stdout] | [INFO] [stdout] 34 | as TryFrom>::Error: Debug; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] stack backtrace: [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate( as std::convert::TryFrom>) on opaque type [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:33:19 [INFO] [stdout] | [INFO] [stdout] 33 | Rc: TryFrom, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate( as std::marker::Sized>) on opaque type [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate(>>) on opaque type [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:32:22 [INFO] [stdout] | [INFO] [stdout] 32 | AnyRcObject: From>, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate() on opaque type [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate(>) on opaque type [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:31:77 [INFO] [stdout] | [INFO] [stdout] 31 | pub trait Object = Serializable + ConstObjType + Default where AnyRcObject: From, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 0: 0x7fd75506d200 - std::backtrace_rs::backtrace::libunwind::trace::ha1eabb142084ea37 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96 [INFO] [stderr] 1: 0x7fd75506d200 - std::backtrace_rs::backtrace::trace_unsynchronized::hbb8825661d997281 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/../../backtrace/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7fd75506d200 - std::sys_common::backtrace::_print_fmt::h26d850e2f7183914 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:79 [INFO] [stderr] 3: 0x7fd75506d200 - ::fmt::h3834b06f68a2b012 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:58 [INFO] [stderr] 4: 0x7fd7550dd15c - core::fmt::write::h3a043650ba7bf668 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/fmt/mod.rs:1117 [INFO] [stderr] 5: 0x7fd75505fdf5 - std::io::Write::write_fmt::h9c0c8944a1898139 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/io/mod.rs:1510 [INFO] [stderr] 6: 0x7fd755071cb0 - std::sys_common::backtrace::_print::h693c0c2cc41d4d10 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:61 [INFO] [stderr] 7: 0x7fd755071cb0 - std::sys_common::backtrace::print::h213be73e5670b8ea [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:48 [INFO] [stderr] 8: 0x7fd755071cb0 - std::panicking::default_hook::{{closure}}::h2d49a3361cc4e7ea [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:200 [INFO] [stderr] 9: 0x7fd7550719fc - std::panicking::default_hook::hd41fbdeba93207ba [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:219 [INFO] [stderr] 10: 0x7fd7558ad2a9 - rustc_driver::report_ice::h1120fbf2656cc9f3 [INFO] [stderr] 11: 0x7fd74925efd6 - as core::ops::function::Fn>::call::h1c7ebbd292213547 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/alloc/src/boxed.rs:1039 [INFO] [stderr] 12: 0x7fd74924f8c5 - proc_macro::bridge::client::::enter::{{closure}}::{{closure}}::h9be21c2250af8150 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/proc_macro/src/bridge/client.rs:319 [INFO] [stderr] 13: 0x7fd755072448 - std::panicking::rust_panic_with_hook::hcab398664b4bd473 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:573 [INFO] [stderr] 14: 0x7fd75882f374 - std::panicking::begin_panic::{{closure}}::h32dec0227ebf42b8 [INFO] [stderr] 15: 0x7fd75882ee1c - std::sys_common::backtrace::__rust_end_short_backtrace::h1ed1da138c878104 [INFO] [stderr] 16: 0x7fd75882f32c - std::panicking::begin_panic::h3f3dbb2741e0e8cc [INFO] [stderr] 17: 0x7fd7587e9042 - ::drop::h79844dfdeb05219a [INFO] [stderr] 18: 0x7fd75591dc96 - core::ptr::drop_in_place::h96744f924baaf7bf [INFO] [stderr] 19: 0x7fd755924d96 - as core::ops::drop::Drop>::drop::hf7a8810390c41787 [INFO] [stderr] 20: 0x7fd7558b79cd - core::ptr::drop_in_place::hc36a5b4b5fa75e30 [INFO] [stderr] 21: 0x7fd7558b2551 - rustc_span::with_source_map::h4312ff0660509f98 [INFO] [stderr] 22: 0x7fd7558f17f5 - rustc_interface::interface::create_compiler_and_run::hb2f7781764c10c57 [INFO] [stderr] 23: 0x7fd7558b34bb - rustc_span::with_session_globals::h6f0396829c123936 [INFO] [stderr] 24: 0x7fd7558e13fd - std::sys_common::backtrace::__rust_begin_short_backtrace::habb527642304c3bb [INFO] [stderr] 25: 0x7fd75589771e - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe0f8ecc165e4f02 [INFO] [stderr] 26: 0x7fd75508327a - as core::ops::function::FnOnce>::call_once::h8a8db08de617a605 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/alloc/src/boxed.rs:1025 [INFO] [stderr] 27: 0x7fd75508327a - as core::ops::function::FnOnce>::call_once::hddfcff0ffd25c0c4 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/alloc/src/boxed.rs:1025 [INFO] [stderr] 28: 0x7fd75508327a - std::sys::unix::thread::Thread::new::thread_start::h8e648f9ee2e9cb3a [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys/unix/thread.rs:87 [INFO] [stderr] 29: 0x7fd754fa0609 - start_thread [INFO] [stderr] 30: 0x7fd754eb4103 - clone [INFO] [stderr] 31: 0x0 - [INFO] [stderr] [INFO] [stderr] error: internal compiler error: unexpected panic [INFO] [stderr] [INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md [INFO] [stderr] [INFO] [stderr] note: rustc 1.47.0-nightly (f6e2f7876 2020-08-13) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type bin [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] end of query stack [INFO] [stdout] warning: the feature `non_exhaustive` has been stable since 1.40.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | non_exhaustive, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | uniform_paths, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `dbg_macro` has been stable since 1.32.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | dbg_macro, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `try_from` has been stable since 1.34.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | try_from, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `playground`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: Trait bound impl non_volatile::object::any_rc_object::Object: non_volatile::object::any_rc_object::Object does not depend on any type or lifetime parameters [INFO] [stdout] --> src/algorithm.rs:23:26 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn new() -> impl Object { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(trivial_bounds)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stdout] --> src/non_volatile/manager.rs:50:13 [INFO] [stdout] | [INFO] [stdout] 50 | nv_blk_dev.write(i * Uberblock::RAW_SIZE as u64, &ub_raw); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stdout] --> src/non_volatile/manager.rs:104:9 [INFO] [stdout] | [INFO] [stdout] 104 | self.nv_blk_dev.write(ub_offset, &ub_raw); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `non_volatile::block_device::file_backend::FileBackend::write` that must be used [INFO] [stdout] --> src/non_volatile/manager.rs:167:9 [INFO] [stdout] | [INFO] [stdout] 167 | nv_blk_dev.write(offset, &obj_raw); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' panicked at 'no errors encountered even though `delay_span_bug` issued', src/librustc_errors/lib.rs:366:17 [INFO] [stdout] warning: 33 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] stack backtrace: [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate(< as std::convert::TryFrom>::Error as std::fmt::Debug>) on opaque type [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:34:52 [INFO] [stdout] | [INFO] [stdout] 34 | as TryFrom>::Error: Debug; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 0: 0x7f059db38200 - std::backtrace_rs::backtrace::libunwind::trace::ha1eabb142084ea37 [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate( as std::convert::TryFrom>) on opaque type [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:33:19 [INFO] [stdout] | [INFO] [stdout] 33 | Rc: TryFrom, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96 [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate( as std::marker::Sized>) on opaque type [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 1: 0x7f059db38200 - std::backtrace_rs::backtrace::trace_unsynchronized::hbb8825661d997281 [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate(>>) on opaque type [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:32:22 [INFO] [stdout] | [INFO] [stdout] 32 | AnyRcObject: From>, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/../../backtrace/src/backtrace/mod.rs:66 [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate() on opaque type [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 2: 0x7f059db38200 - std::sys_common::backtrace::_print_fmt::h26d850e2f7183914 [INFO] [stdout] error: internal compiler error: unexpected predicate TraitPredicate(>) on opaque type [INFO] [stdout] --> src/non_volatile/object/any_rc_object.rs:31:77 [INFO] [stdout] | [INFO] [stdout] 31 | pub trait Object = Serializable + ConstObjType + Default where AnyRcObject: From, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: delayed at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/src/librustc_session/session.rs:441:27 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:79 [INFO] [stderr] 3: 0x7f059db38200 - ::fmt::h3834b06f68a2b012 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:58 [INFO] [stderr] 4: 0x7f059dba815c - core::fmt::write::h3a043650ba7bf668 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/fmt/mod.rs:1117 [INFO] [stderr] 5: 0x7f059db2adf5 - std::io::Write::write_fmt::h9c0c8944a1898139 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/io/mod.rs:1510 [INFO] [stderr] 6: 0x7f059db3ccb0 - std::sys_common::backtrace::_print::h693c0c2cc41d4d10 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:61 [INFO] [stderr] 7: 0x7f059db3ccb0 - std::sys_common::backtrace::print::h213be73e5670b8ea [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:48 [INFO] [stderr] 8: 0x7f059db3ccb0 - std::panicking::default_hook::{{closure}}::h2d49a3361cc4e7ea [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:200 [INFO] [stderr] 9: 0x7f059db3c9fc - std::panicking::default_hook::hd41fbdeba93207ba [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:219 [INFO] [stderr] 10: 0x7f059e3782a9 - rustc_driver::report_ice::h1120fbf2656cc9f3 [INFO] [stderr] 11: 0x7f0591d3afd6 - as core::ops::function::Fn>::call::h1c7ebbd292213547 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/alloc/src/boxed.rs:1039 [INFO] [stderr] 12: 0x7f0591d2b8c5 - proc_macro::bridge::client::::enter::{{closure}}::{{closure}}::h9be21c2250af8150 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/proc_macro/src/bridge/client.rs:319 [INFO] [stderr] 13: 0x7f059db3d448 - std::panicking::rust_panic_with_hook::hcab398664b4bd473 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:573 [INFO] [stderr] 14: 0x7f05a12fa374 - std::panicking::begin_panic::{{closure}}::h32dec0227ebf42b8 [INFO] [stderr] 15: 0x7f05a12f9e1c - std::sys_common::backtrace::__rust_end_short_backtrace::h1ed1da138c878104 [INFO] [stderr] 16: 0x7f05a12fa32c - std::panicking::begin_panic::h3f3dbb2741e0e8cc [INFO] [stderr] 17: 0x7f05a12b4042 - ::drop::h79844dfdeb05219a [INFO] [stderr] 18: 0x7f059e3e8c96 - core::ptr::drop_in_place::h96744f924baaf7bf [INFO] [stderr] 19: 0x7f059e3efd96 - as core::ops::drop::Drop>::drop::hf7a8810390c41787 [INFO] [stderr] 20: 0x7f059e3829cd - core::ptr::drop_in_place::hc36a5b4b5fa75e30 [INFO] [stderr] 21: 0x7f059e37d551 - rustc_span::with_source_map::h4312ff0660509f98 [INFO] [stderr] 22: 0x7f059e3bc7f5 - rustc_interface::interface::create_compiler_and_run::hb2f7781764c10c57 [INFO] [stderr] 23: 0x7f059e37e4bb - rustc_span::with_session_globals::h6f0396829c123936 [INFO] [stderr] 24: 0x7f059e3ac3fd - std::sys_common::backtrace::__rust_begin_short_backtrace::habb527642304c3bb [INFO] [stderr] 25: 0x7f059e36271e - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe0f8ecc165e4f02 [INFO] [stderr] 26: 0x7f059db4e27a - as core::ops::function::FnOnce>::call_once::h8a8db08de617a605 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/alloc/src/boxed.rs:1025 [INFO] [stderr] 27: 0x7f059db4e27a - as core::ops::function::FnOnce>::call_once::hddfcff0ffd25c0c4 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/alloc/src/boxed.rs:1025 [INFO] [stderr] 28: 0x7f059db4e27a - std::sys::unix::thread::Thread::new::thread_start::h8e648f9ee2e9cb3a [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys/unix/thread.rs:87 [INFO] [stderr] 29: 0x7f059da6b609 - start_thread [INFO] [stderr] 30: 0x7f059d97f103 - clone [INFO] [stderr] 31: 0x0 - [INFO] [stderr] [INFO] [stderr] error: internal compiler error: unexpected panic [INFO] [stderr] [INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md [INFO] [stderr] [INFO] [stderr] note: rustc 1.47.0-nightly (f6e2f7876 2020-08-13) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] end of query stack [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "bac10c2ced2db60574082f56dec3ed8178ecceb9a10ae77bd3325f3c3dc44f0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bac10c2ced2db60574082f56dec3ed8178ecceb9a10ae77bd3325f3c3dc44f0c", kill_on_drop: false }` [INFO] [stdout] bac10c2ced2db60574082f56dec3ed8178ecceb9a10ae77bd3325f3c3dc44f0c