[INFO] updating cached repository playXE/libextra
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/playXE/libextra
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/playXE/libextra" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/playXE/libextra"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/playXE/libextra'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/playXE/libextra" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/playXE/libextra"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/playXE/libextra'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9fb8894c7d6dc2b71435a8f6055e7ce1629cd444
[INFO] sha for GitHub repo playXE/libextra: 9fb8894c7d6dc2b71435a8f6055e7ce1629cd444
[INFO] validating manifest of playXE/libextra on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of playXE/libextra on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing playXE/libextra
[INFO] finished frobbing playXE/libextra
[INFO] frobbed toml for playXE/libextra written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/playXE/libextra/Cargo.toml
[INFO] started frobbing playXE/libextra
[INFO] finished frobbing playXE/libextra
[INFO] frobbed toml for playXE/libextra written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/playXE/libextra/Cargo.toml
[INFO] crate playXE/libextra already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking playXE/libextra against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-1/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/playXE/libextra:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 85a460557cba05d58a2361fceab2b8fde2908e37d7b278e47cb8c3b81544654c
[INFO] running `"docker" "start" "-a" "85a460557cba05d58a2361fceab2b8fde2908e37d7b278e47cb8c3b81544654c"`
[INFO] [stderr]     Checking libextra v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Enumerate`, `FilterMap`
[INFO] [stderr]  --> src/map.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::iter::{Enumerate, FilterMap};
[INFO] [stderr]   |                 ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/map.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | / macro_rules! iterator {
[INFO] [stderr] 40 | |     (impl $name:ident -> $elem:ty, $getter:ident) => {
[INFO] [stderr] 41 | |         impl<'a, T: 'a> Iterator for $name<'a, T> {
[INFO] [stderr] 42 | |             type Item = $elem;
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Enumerate`, `FilterMap`
[INFO] [stderr]  --> src/map.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::iter::{Enumerate, FilterMap};
[INFO] [stderr]   |                 ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/map.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | / macro_rules! iterator {
[INFO] [stderr] 40 | |     (impl $name:ident -> $elem:ty, $getter:ident) => {
[INFO] [stderr] 41 | |         impl<'a, T: 'a> Iterator for $name<'a, T> {
[INFO] [stderr] 42 | |             type Item = $elem;
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/bitv.rs:179:30
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn difference(&self, other: &BitvSet, f: &fn(&usize) -> bool) -> bool {
[INFO] [stderr]     |                              ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/bitv.rs:179:47
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn difference(&self, other: &BitvSet, f: &fn(&usize) -> bool) -> bool {
[INFO] [stderr]     |                                               ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/bitv.rs:179:30
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn difference(&self, other: &BitvSet, f: &fn(&usize) -> bool) -> bool {
[INFO] [stderr]     |                              ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/bitv.rs:179:47
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn difference(&self, other: &BitvSet, f: &fn(&usize) -> bool) -> bool {
[INFO] [stderr]     |                                               ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `iterate_bits`
[INFO] [stderr]  --> src/bitv.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn iterate_bits(base: usize, bits: usize, f: &Fn(usize) -> bool) -> bool {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Op`
[INFO] [stderr]    --> src/bitv.rs:121:1
[INFO] [stderr]     |
[INFO] [stderr] 121 | enum Op {
[INFO] [stderr]     | ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `front`
[INFO] [stderr]   --> src/map.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     front: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `back`
[INFO] [stderr]   --> src/map.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     back: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `iter`
[INFO] [stderr]   --> src/map.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     iter: Iterator<Item=Option<T>> + 'a,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `iterate_bits`
[INFO] [stderr]  --> src/bitv.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn iterate_bits(base: usize, bits: usize, f: &Fn(usize) -> bool) -> bool {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Op`
[INFO] [stderr]    --> src/bitv.rs:121:1
[INFO] [stderr]     |
[INFO] [stderr] 121 | enum Op {
[INFO] [stderr]     | ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `front`
[INFO] [stderr]   --> src/map.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     front: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `back`
[INFO] [stderr]   --> src/map.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     back: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `iter`
[INFO] [stderr]   --> src/map.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     iter: Iterator<Item=Option<T>> + 'a,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "85a460557cba05d58a2361fceab2b8fde2908e37d7b278e47cb8c3b81544654c"`
[INFO] running `"docker" "rm" "-f" "85a460557cba05d58a2361fceab2b8fde2908e37d7b278e47cb8c3b81544654c"`
[INFO] [stdout] 85a460557cba05d58a2361fceab2b8fde2908e37d7b278e47cb8c3b81544654c