[INFO] updating cached repository xeranimus/mergebg
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/xeranimus/mergebg
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/xeranimus/mergebg" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/xeranimus/mergebg"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/xeranimus/mergebg'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xeranimus/mergebg" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/xeranimus/mergebg"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/xeranimus/mergebg'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 603295c617318981a18517c853172ffd313cfe8d
[INFO] sha for GitHub repo xeranimus/mergebg: 603295c617318981a18517c853172ffd313cfe8d
[INFO] validating manifest of xeranimus/mergebg on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of xeranimus/mergebg on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing xeranimus/mergebg
[INFO] finished frobbing xeranimus/mergebg
[INFO] frobbed toml for xeranimus/mergebg written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/xeranimus/mergebg/Cargo.toml
[INFO] started frobbing xeranimus/mergebg
[INFO] finished frobbing xeranimus/mergebg
[INFO] frobbed toml for xeranimus/mergebg written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/xeranimus/mergebg/Cargo.toml
[INFO] crate xeranimus/mergebg already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking xeranimus/mergebg against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/xeranimus/mergebg:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 72c248cb46a49678a7bd90d2f63b2b4111e0566c036cadeab36086474342f438
[INFO] running `"docker" "start" "-a" "72c248cb46a49678a7bd90d2f63b2b4111e0566c036cadeab36086474342f438"`
[INFO] [stderr]     Checking mergebg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> src/lib.rs:108:33
[INFO] [stderr]     |
[INFO] [stderr] 108 |         fn starts_before(&self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |                                 ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> src/lib.rs:113:30
[INFO] [stderr]     |
[INFO] [stderr] 113 |         fn ends_after(&self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |                              ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> src/lib.rs:118:39
[INFO] [stderr]     |
[INFO] [stderr] 118 |         fn truncate_before(&mut self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |                                       ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> src/lib.rs:123:38
[INFO] [stderr]     |
[INFO] [stderr] 123 |         fn truncate_after(&mut self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |                                      ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `start_pos`
[INFO] [stderr]   --> src/lib.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         fn start_pos(&self) -> ChromPos {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stop_pos`
[INFO] [stderr]   --> src/lib.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         fn stop_pos(&self) -> ChromPos {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `starts_before`
[INFO] [stderr]    --> src/lib.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         fn starts_before(&self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ends_after`
[INFO] [stderr]    --> src/lib.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         fn ends_after(&self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate_before`
[INFO] [stderr]    --> src/lib.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         fn truncate_before(&mut self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate_after`
[INFO] [stderr]    --> src/lib.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         fn truncate_after(&mut self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> src/lib.rs:108:33
[INFO] [stderr]     |
[INFO] [stderr] 108 |         fn starts_before(&self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |                                 ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> src/lib.rs:113:30
[INFO] [stderr]     |
[INFO] [stderr] 113 |         fn ends_after(&self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |                              ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> src/lib.rs:118:39
[INFO] [stderr]     |
[INFO] [stderr] 118 |         fn truncate_before(&mut self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |                                       ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> src/lib.rs:123:38
[INFO] [stderr]     |
[INFO] [stderr] 123 |         fn truncate_after(&mut self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |                                      ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |             let mut bedgraph = BedGraphIterator::new("test/unionbedg/1+2+3.bg").unwrap();
[INFO] [stderr]     |                 ----^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `starts_before`
[INFO] [stderr]    --> src/lib.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         fn starts_before(&self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ends_after`
[INFO] [stderr]    --> src/lib.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         fn ends_after(&self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate_before`
[INFO] [stderr]    --> src/lib.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         fn truncate_before(&mut self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate_after`
[INFO] [stderr]    --> src/lib.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         fn truncate_after(&mut self, pos: &chrom_geo::ChromPos) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`
[INFO] [stderr]  --> src/main.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufRead, BufReader};
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`
[INFO] [stderr]  --> src/main.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufRead, BufReader};
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "72c248cb46a49678a7bd90d2f63b2b4111e0566c036cadeab36086474342f438"`
[INFO] running `"docker" "rm" "-f" "72c248cb46a49678a7bd90d2f63b2b4111e0566c036cadeab36086474342f438"`
[INFO] [stdout] 72c248cb46a49678a7bd90d2f63b2b4111e0566c036cadeab36086474342f438