[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/beta-1.37-6/sources/1.36.0/gh/playXE/libextra"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/playXE/libextra'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/playXE/libextra" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/playXE/libextra"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/playXE/libextra'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cfc89fff0d457a4fd7b846a4a01d54eb5dca5de6
[INFO] sha for GitHub repo playXE/libextra: cfc89fff0d457a4fd7b846a4a01d54eb5dca5de6
[INFO] validating manifest of playXE/libextra on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of playXE/libextra on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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/beta-1.37-6/sources/1.36.0/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/beta-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing playXE/libextra against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 8e27abce4ecfb2f0269910abf33efa6b150aca9a7b50e3fcb367f34df0c448d7
[INFO] running `"docker" "start" "-a" "8e27abce4ecfb2f0269910abf33efa6b150aca9a7b50e3fcb367f34df0c448d7"`
[INFO] [stderr]    Compiling 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:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / macro_rules! iterator {
[INFO] [stderr] 37 | |     (impl $name:ident -> $elem:ty, $getter:ident) => {
[INFO] [stderr] 38 | |         impl<'a, T: 'a> Iterator for $name<T> {
[INFO] [stderr] 39 | |             type Item = (usize, &'a T);
[INFO] [stderr] ...  |
[INFO] [stderr] 63 | |     };
[INFO] [stderr] 64 | | }
[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:182:30
[INFO] [stderr]     |
[INFO] [stderr] 182 |     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:182:47
[INFO] [stderr]     |
[INFO] [stderr] 182 |     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:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | 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:117:1
[INFO] [stderr]     |
[INFO] [stderr] 117 | enum Op {
[INFO] [stderr]     | ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `"docker" "inspect" "8e27abce4ecfb2f0269910abf33efa6b150aca9a7b50e3fcb367f34df0c448d7"`
[INFO] running `"docker" "rm" "-f" "8e27abce4ecfb2f0269910abf33efa6b150aca9a7b50e3fcb367f34df0c448d7"`
[INFO] [stdout] 8e27abce4ecfb2f0269910abf33efa6b150aca9a7b50e3fcb367f34df0c448d7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 03d1e6a140fc013c2ccf923d412d3591095e65991f800f091a529219e0f63c30
[INFO] running `"docker" "start" "-a" "03d1e6a140fc013c2ccf923d412d3591095e65991f800f091a529219e0f63c30"`
[INFO] [stderr]    Compiling 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:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | / macro_rules! iterator {
[INFO] [stderr] 37 | |     (impl $name:ident -> $elem:ty, $getter:ident) => {
[INFO] [stderr] 38 | |         impl<'a, T: 'a> Iterator for $name<T> {
[INFO] [stderr] 39 | |             type Item = (usize, &'a T);
[INFO] [stderr] ...  |
[INFO] [stderr] 63 | |     };
[INFO] [stderr] 64 | | }
[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:182:30
[INFO] [stderr]     |
[INFO] [stderr] 182 |     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:182:47
[INFO] [stderr]     |
[INFO] [stderr] 182 |     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:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | 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:117:1
[INFO] [stderr]     |
[INFO] [stderr] 117 | enum Op {
[INFO] [stderr]     | ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `"docker" "inspect" "03d1e6a140fc013c2ccf923d412d3591095e65991f800f091a529219e0f63c30"`
[INFO] running `"docker" "rm" "-f" "03d1e6a140fc013c2ccf923d412d3591095e65991f800f091a529219e0f63c30"`
[INFO] [stdout] 03d1e6a140fc013c2ccf923d412d3591095e65991f800f091a529219e0f63c30
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] b63022bb2ed2a682633fe8fad373507133ea1767953e729d4f4f67573d0ad721
[INFO] running `"docker" "start" "-a" "b63022bb2ed2a682633fe8fad373507133ea1767953e729d4f4f67573d0ad721"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/libextra-2294b06c1c6da695
[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] [stderr]      Running /opt/crater/target/debug/deps/libextra-a721b0618829b9cd
[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] [stderr]    Doc-tests libextra
[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" "b63022bb2ed2a682633fe8fad373507133ea1767953e729d4f4f67573d0ad721"`
[INFO] running `"docker" "rm" "-f" "b63022bb2ed2a682633fe8fad373507133ea1767953e729d4f4f67573d0ad721"`
[INFO] [stdout] b63022bb2ed2a682633fe8fad373507133ea1767953e729d4f4f67573d0ad721