[INFO] updating cached repository OneMoreByte/qm-method-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/OneMoreByte/qm-method-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/OneMoreByte/qm-method-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/OneMoreByte/qm-method-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/OneMoreByte/qm-method-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/OneMoreByte/qm-method-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/OneMoreByte/qm-method-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/OneMoreByte/qm-method-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 98cd5beb1ecafb8650baa5d23f2390813c6e505d
[INFO] sha for GitHub repo OneMoreByte/qm-method-rs: 98cd5beb1ecafb8650baa5d23f2390813c6e505d
[INFO] validating manifest of OneMoreByte/qm-method-rs on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of OneMoreByte/qm-method-rs on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing OneMoreByte/qm-method-rs
[INFO] finished frobbing OneMoreByte/qm-method-rs
[INFO] frobbed toml for OneMoreByte/qm-method-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/OneMoreByte/qm-method-rs/Cargo.toml
[INFO] started frobbing OneMoreByte/qm-method-rs
[INFO] finished frobbing OneMoreByte/qm-method-rs
[INFO] frobbed toml for OneMoreByte/qm-method-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/OneMoreByte/qm-method-rs/Cargo.toml
[INFO] crate OneMoreByte/qm-method-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing OneMoreByte/qm-method-rs against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/OneMoreByte/qm-method-rs:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 406a5bfba4b8169cb3bd804787124c79fa31ae595597edee226d3d9fb7f2dcba
[INFO] running `"docker" "start" "-a" "406a5bfba4b8169cb3bd804787124c79fa31ae595597edee226d3d9fb7f2dcba"`
[INFO] [stderr]    Compiling qm-method-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/main.rs:78:31
[INFO] [stderr]    |
[INFO] [stderr] 78 |             z.binary_eqv.push((((m / (t.pow(x as u32))) % 2) as i8))
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:258:16
[INFO] [stderr]     |
[INFO] [stderr] 258 | fn place_mterm(mut bin: &mut Vec<Vec<Term>>, m: u64, n: i8) {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `"docker" "inspect" "406a5bfba4b8169cb3bd804787124c79fa31ae595597edee226d3d9fb7f2dcba"`
[INFO] running `"docker" "rm" "-f" "406a5bfba4b8169cb3bd804787124c79fa31ae595597edee226d3d9fb7f2dcba"`
[INFO] [stdout] 406a5bfba4b8169cb3bd804787124c79fa31ae595597edee226d3d9fb7f2dcba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/OneMoreByte/qm-method-rs:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] a7ec2aff73581c3a55212b77ff3481464d8d6f680fab81d3e48ddd5c9a0c9893
[INFO] running `"docker" "start" "-a" "a7ec2aff73581c3a55212b77ff3481464d8d6f680fab81d3e48ddd5c9a0c9893"`
[INFO] [stderr]    Compiling qm-method-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/main.rs:78:31
[INFO] [stderr]    |
[INFO] [stderr] 78 |             z.binary_eqv.push((((m / (t.pow(x as u32))) % 2) as i8))
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:258:16
[INFO] [stderr]     |
[INFO] [stderr] 258 | fn place_mterm(mut bin: &mut Vec<Vec<Term>>, m: u64, n: i8) {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "a7ec2aff73581c3a55212b77ff3481464d8d6f680fab81d3e48ddd5c9a0c9893"`
[INFO] running `"docker" "rm" "-f" "a7ec2aff73581c3a55212b77ff3481464d8d6f680fab81d3e48ddd5c9a0c9893"`
[INFO] [stdout] a7ec2aff73581c3a55212b77ff3481464d8d6f680fab81d3e48ddd5c9a0c9893
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/OneMoreByte/qm-method-rs:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 8154d8a4484a2000e9471bd1c8582a4fce295e881d92b047253966bff33a126c
[INFO] running `"docker" "start" "-a" "8154d8a4484a2000e9471bd1c8582a4fce295e881d92b047253966bff33a126c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/qm_method_rs-0f16dfdd80351d51
[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" "8154d8a4484a2000e9471bd1c8582a4fce295e881d92b047253966bff33a126c"`
[INFO] running `"docker" "rm" "-f" "8154d8a4484a2000e9471bd1c8582a4fce295e881d92b047253966bff33a126c"`
[INFO] [stdout] 8154d8a4484a2000e9471bd1c8582a4fce295e881d92b047253966bff33a126c