[INFO] updating cached repository https://github.com/iljakuklic/cover
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 750931d515bdfe52d38eea1d8752e943525e2546
[INFO] testing iljakuklic/cover against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Filjakuklic%2Fcover" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iljakuklic/cover on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/iljakuklic/cover
[INFO] finished tweaking git repo https://github.com/iljakuklic/cover
[INFO] tweaked toml for git repo https://github.com/iljakuklic/cover written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/iljakuklic/cover already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] dc1d9a6518020a21d4bcb8d1fc52d05e3946add44fd1f62745257e102477d95b
[INFO] running `"docker" "start" "-a" "dc1d9a6518020a21d4bcb8d1fc52d05e3946add44fd1f62745257e102477d95b"`
[INFO] [stderr]    Compiling bitvec v0.6.0
[INFO] [stderr]    Compiling cover v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `transpose`
[INFO] [stderr]    --> src/main.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     fn transpose(self) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_cols`
[INFO] [stderr]    --> src/main.rs:186:5
[INFO] [stderr]     |
[INFO] [stderr] 186 |     fn from_cols(byrow : Vec<(u32, u32)>) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "dc1d9a6518020a21d4bcb8d1fc52d05e3946add44fd1f62745257e102477d95b"`
[INFO] running `"docker" "rm" "-f" "dc1d9a6518020a21d4bcb8d1fc52d05e3946add44fd1f62745257e102477d95b"`
[INFO] [stdout] dc1d9a6518020a21d4bcb8d1fc52d05e3946add44fd1f62745257e102477d95b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 85b4c70f503e35c0f3eafa089053250ffacb1d69b9a82f8bbf661d6c38ae030f
[INFO] running `"docker" "start" "-a" "85b4c70f503e35c0f3eafa089053250ffacb1d69b9a82f8bbf661d6c38ae030f"`
[INFO] [stderr]    Compiling cover v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `transpose`
[INFO] [stderr]    --> src/main.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     fn transpose(self) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_cols`
[INFO] [stderr]    --> src/main.rs:186:5
[INFO] [stderr]     |
[INFO] [stderr] 186 |     fn from_cols(byrow : Vec<(u32, u32)>) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "85b4c70f503e35c0f3eafa089053250ffacb1d69b9a82f8bbf661d6c38ae030f"`
[INFO] running `"docker" "rm" "-f" "85b4c70f503e35c0f3eafa089053250ffacb1d69b9a82f8bbf661d6c38ae030f"`
[INFO] [stdout] 85b4c70f503e35c0f3eafa089053250ffacb1d69b9a82f8bbf661d6c38ae030f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 1a646a0bbcb617add9da645bf652961d58287dcc5256c675053b4be18984d095
[INFO] running `"docker" "start" "-a" "1a646a0bbcb617add9da645bf652961d58287dcc5256c675053b4be18984d095"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cover-f3c494478c2af01d
[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" "1a646a0bbcb617add9da645bf652961d58287dcc5256c675053b4be18984d095"`
[INFO] running `"docker" "rm" "-f" "1a646a0bbcb617add9da645bf652961d58287dcc5256c675053b4be18984d095"`
[INFO] [stdout] 1a646a0bbcb617add9da645bf652961d58287dcc5256c675053b4be18984d095