[INFO] updating cached repository hansihe/beam_code
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hansihe/beam_code
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hansihe/beam_code" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/hansihe/beam_code"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/hansihe/beam_code'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hansihe/beam_code" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/hansihe/beam_code"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/hansihe/beam_code'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 64f05a3f331e5ca9fc19c2501739c248995b9587
[INFO] sha for GitHub repo hansihe/beam_code: 64f05a3f331e5ca9fc19c2501739c248995b9587
[INFO] validating manifest of hansihe/beam_code on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hansihe/beam_code on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hansihe/beam_code
[INFO] finished frobbing hansihe/beam_code
[INFO] frobbed toml for hansihe/beam_code written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/hansihe/beam_code/Cargo.toml
[INFO] started frobbing hansihe/beam_code
[INFO] finished frobbing hansihe/beam_code
[INFO] frobbed toml for hansihe/beam_code written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/hansihe/beam_code/Cargo.toml
[INFO] crate hansihe/beam_code already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking hansihe/beam_code against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-2/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/hansihe/beam_code:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 863a4d79bdafa9ceed807cf6e5eeee49a35fc469ec62bd2de2c028c25f883dcb
[INFO] running `"docker" "start" "-a" "863a4d79bdafa9ceed807cf6e5eeee49a35fc469ec62bd2de2c028c25f883dcb"`
[INFO] [stderr]     Checking libflate v0.1.9
[INFO] [stderr]     Checking itertools v0.6.0
[INFO] [stderr]     Checking string-intern v0.1.6
[INFO] [stderr]     Checking num-bigint v0.1.39
[INFO] [stderr]     Checking num-rational v0.1.38
[INFO] [stderr]     Checking beam_file v0.2.2
[INFO] [stderr]     Checking num v0.1.39
[INFO] [stderr]     Checking eetf v0.3.6
[INFO] [stderr]     Checking beam_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `::std::rc::Rc`
[INFO] [stderr]  --> src/op.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Literal`
[INFO] [stderr]  --> src/ssa/mod.rs:5:52
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::op::{ Op, LabelId, Register, OpKind, Source, Literal };
[INFO] [stderr]   |                                                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::hash::Hash`
[INFO] [stderr]  --> src/ssa/representation.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::fmt::Debug`
[INFO] [stderr]  --> src/graph/dfs.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ::std::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GraphAccessor`
[INFO] [stderr]  --> src/graph/dfs.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::{ GraphAccessor, GraphDfs };
[INFO] [stderr]   |              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::rc::Rc`
[INFO] [stderr]  --> src/op.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Literal`
[INFO] [stderr]  --> src/ssa/mod.rs:5:52
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::op::{ Op, LabelId, Register, OpKind, Source, Literal };
[INFO] [stderr]   |                                                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::hash::Hash`
[INFO] [stderr]  --> src/ssa/representation.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::fmt::Debug`
[INFO] [stderr]  --> src/graph/dfs.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ::std::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GraphAccessor`
[INFO] [stderr]  --> src/graph/dfs.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::{ GraphAccessor, GraphDfs };
[INFO] [stderr]   |              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `atom_num`
[INFO] [stderr]    --> src/beam_module.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |     for atom_num in 0..len {
[INFO] [stderr]     |         ^^^^^^^^ help: consider prefixing with an underscore: `_atom_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `atom_num`
[INFO] [stderr]    --> src/beam_module.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |     for atom_num in 0..len {
[INFO] [stderr]     |         ^^^^^^^^ help: consider prefixing with an underscore: `_atom_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `x_reg`
[INFO] [stderr]    --> src/op.rs:687:5
[INFO] [stderr]     |
[INFO] [stderr] 687 |     fn x_reg(num: u32) -> Source {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `GraphAccessor`
[INFO] [stderr]   --> src/graph/mod.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `x_reg`
[INFO] [stderr]    --> src/op.rs:687:5
[INFO] [stderr]     |
[INFO] [stderr] 687 |     fn x_reg(num: u32) -> Source {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `GraphAccessor`
[INFO] [stderr]   --> src/graph/mod.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::rc::Rc`
[INFO] [stderr]  --> src/op.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Literal`
[INFO] [stderr]  --> src/ssa/mod.rs:5:52
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::op::{ Op, LabelId, Register, OpKind, Source, Literal };
[INFO] [stderr]   |                                                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::hash::Hash`
[INFO] [stderr]  --> src/ssa/representation.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::fmt::Debug`
[INFO] [stderr]  --> src/graph/dfs.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ::std::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GraphAccessor`
[INFO] [stderr]  --> src/graph/dfs.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::{ GraphAccessor, GraphDfs };
[INFO] [stderr]   |              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::rc::Rc`
[INFO] [stderr]  --> src/op.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Literal`
[INFO] [stderr]  --> src/ssa/mod.rs:5:52
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::op::{ Op, LabelId, Register, OpKind, Source, Literal };
[INFO] [stderr]   |                                                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::hash::Hash`
[INFO] [stderr]  --> src/ssa/representation.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::fmt::Debug`
[INFO] [stderr]  --> src/graph/dfs.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ::std::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GraphAccessor`
[INFO] [stderr]  --> src/graph/dfs.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::{ GraphAccessor, GraphDfs };
[INFO] [stderr]   |              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `atom_num`
[INFO] [stderr]    --> src/beam_module.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |     for atom_num in 0..len {
[INFO] [stderr]     |         ^^^^^^^^ help: consider prefixing with an underscore: `_atom_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `atom_num`
[INFO] [stderr]    --> src/beam_module.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |     for atom_num in 0..len {
[INFO] [stderr]     |         ^^^^^^^^ help: consider prefixing with an underscore: `_atom_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_reads_labels`
[INFO] [stderr]   --> src/op.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn with_reads_labels(kind: OpKind, reads: Vec<Source>, labels: Vec<LabelId>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CaseEnd`
[INFO] [stderr]    --> src/op.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     CaseEnd,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `x_reg`
[INFO] [stderr]    --> src/op.rs:687:5
[INFO] [stderr]     |
[INFO] [stderr] 687 |     fn x_reg(num: u32) -> Source {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_register`
[INFO] [stderr]    --> src/op.rs:691:5
[INFO] [stderr]     |
[INFO] [stderr] 691 |     pub fn get_register(&self) -> Register {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_register`
[INFO] [stderr]   --> src/ssa/representation.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn get_register(&self) -> SSARegister {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `GraphAccessor`
[INFO] [stderr]   --> src/graph/mod.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_reads_labels`
[INFO] [stderr]   --> src/op.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn with_reads_labels(kind: OpKind, reads: Vec<Source>, labels: Vec<LabelId>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CaseEnd`
[INFO] [stderr]    --> src/op.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     CaseEnd,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `x_reg`
[INFO] [stderr]    --> src/op.rs:687:5
[INFO] [stderr]     |
[INFO] [stderr] 687 |     fn x_reg(num: u32) -> Source {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_register`
[INFO] [stderr]    --> src/op.rs:691:5
[INFO] [stderr]     |
[INFO] [stderr] 691 |     pub fn get_register(&self) -> Register {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_register`
[INFO] [stderr]   --> src/ssa/representation.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn get_register(&self) -> SSARegister {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `GraphAccessor`
[INFO] [stderr]   --> src/graph/mod.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.06s
[INFO] running `"docker" "inspect" "863a4d79bdafa9ceed807cf6e5eeee49a35fc469ec62bd2de2c028c25f883dcb"`
[INFO] running `"docker" "rm" "-f" "863a4d79bdafa9ceed807cf6e5eeee49a35fc469ec62bd2de2c028c25f883dcb"`
[INFO] [stdout] 863a4d79bdafa9ceed807cf6e5eeee49a35fc469ec62bd2de2c028c25f883dcb