[INFO] updating cached repository MicroJoe/rmatrix
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MicroJoe/rmatrix
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MicroJoe/rmatrix" "work/ex/beta-1.37-6/sources/1.36.0/gh/MicroJoe/rmatrix"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/MicroJoe/rmatrix'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MicroJoe/rmatrix" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/MicroJoe/rmatrix"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/MicroJoe/rmatrix'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 52506714448a41de35353162c64de33266acce43
[INFO] sha for GitHub repo MicroJoe/rmatrix: 52506714448a41de35353162c64de33266acce43
[INFO] validating manifest of MicroJoe/rmatrix 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 MicroJoe/rmatrix 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 MicroJoe/rmatrix
[INFO] finished frobbing MicroJoe/rmatrix
[INFO] frobbed toml for MicroJoe/rmatrix written to work/ex/beta-1.37-6/sources/1.36.0/gh/MicroJoe/rmatrix/Cargo.toml
[INFO] started frobbing MicroJoe/rmatrix
[INFO] finished frobbing MicroJoe/rmatrix
[INFO] frobbed toml for MicroJoe/rmatrix written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/MicroJoe/rmatrix/Cargo.toml
[INFO] crate MicroJoe/rmatrix 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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing MicroJoe/rmatrix 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/MicroJoe/rmatrix:/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] 039e1457548cc1c77d4eead8cf8f76f4e030414c4bd0fd80c56f7c8b425ab142
[INFO] running `"docker" "start" "-a" "039e1457548cc1c77d4eead8cf8f76f4e030414c4bd0fd80c56f7c8b425ab142"`
[INFO] [stderr]    Compiling rmatrix v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `id`
[INFO] [stderr]   --> src/matrix.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn id(w: usize) -> Matrix {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "039e1457548cc1c77d4eead8cf8f76f4e030414c4bd0fd80c56f7c8b425ab142"`
[INFO] running `"docker" "rm" "-f" "039e1457548cc1c77d4eead8cf8f76f4e030414c4bd0fd80c56f7c8b425ab142"`
[INFO] [stdout] 039e1457548cc1c77d4eead8cf8f76f4e030414c4bd0fd80c56f7c8b425ab142
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/MicroJoe/rmatrix:/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] 9a9cfefa9f5bd2f9f8ef3c7dc64d090fffe75d4ebbe3627351be1b635e4d8192
[INFO] running `"docker" "start" "-a" "9a9cfefa9f5bd2f9f8ef3c7dc64d090fffe75d4ebbe3627351be1b635e4d8192"`
[INFO] [stderr]    Compiling rmatrix v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "9a9cfefa9f5bd2f9f8ef3c7dc64d090fffe75d4ebbe3627351be1b635e4d8192"`
[INFO] running `"docker" "rm" "-f" "9a9cfefa9f5bd2f9f8ef3c7dc64d090fffe75d4ebbe3627351be1b635e4d8192"`
[INFO] [stdout] 9a9cfefa9f5bd2f9f8ef3c7dc64d090fffe75d4ebbe3627351be1b635e4d8192
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/MicroJoe/rmatrix:/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] ddf6011e16c884201fa5b5ce323ce75b50375036ec3b25c05098fd7c629d39c2
[INFO] running `"docker" "start" "-a" "ddf6011e16c884201fa5b5ce323ce75b50375036ec3b25c05098fd7c629d39c2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rmatrix-d995650e280dd212
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test matrix::test_mult_id ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ddf6011e16c884201fa5b5ce323ce75b50375036ec3b25c05098fd7c629d39c2"`
[INFO] running `"docker" "rm" "-f" "ddf6011e16c884201fa5b5ce323ce75b50375036ec3b25c05098fd7c629d39c2"`
[INFO] [stdout] ddf6011e16c884201fa5b5ce323ce75b50375036ec3b25c05098fd7c629d39c2