[INFO] updating cached repository proelbtn/school-calculator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/proelbtn/school-calculator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/proelbtn/school-calculator" "work/ex/beta-1.37-6/sources/1.36.0/gh/proelbtn/school-calculator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/proelbtn/school-calculator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/proelbtn/school-calculator" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/proelbtn/school-calculator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/proelbtn/school-calculator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a8b6aa16c9a7bfa4c04a8ced01f97931d5ade30e
[INFO] sha for GitHub repo proelbtn/school-calculator: a8b6aa16c9a7bfa4c04a8ced01f97931d5ade30e
[INFO] validating manifest of proelbtn/school-calculator 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 proelbtn/school-calculator 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 proelbtn/school-calculator
[INFO] finished frobbing proelbtn/school-calculator
[INFO] frobbed toml for proelbtn/school-calculator written to work/ex/beta-1.37-6/sources/1.36.0/gh/proelbtn/school-calculator/Cargo.toml
[INFO] started frobbing proelbtn/school-calculator
[INFO] finished frobbing proelbtn/school-calculator
[INFO] frobbed toml for proelbtn/school-calculator written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/proelbtn/school-calculator/Cargo.toml
[INFO] crate proelbtn/school-calculator 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 proelbtn/school-calculator 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/proelbtn/school-calculator:/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] 5a6a490f2c13ca8750ef238428e1f73aff43bf3988c3cc9ff0063d2c5b7b4b07
[INFO] running `"docker" "start" "-a" "5a6a490f2c13ca8750ef238428e1f73aff43bf3988c3cc9ff0063d2c5b7b4b07"`
[INFO] [stderr]    Compiling school-calculator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `i` is never read
[INFO] [stderr]    --> src/main.rs:121:25
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 let mut i = 0;
[INFO] [stderr]     |                         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/main.rs:122:25
[INFO] [stderr]     |
[INFO] [stderr] 122 |                 let mut val: f64 = 0.;
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "5a6a490f2c13ca8750ef238428e1f73aff43bf3988c3cc9ff0063d2c5b7b4b07"`
[INFO] running `"docker" "rm" "-f" "5a6a490f2c13ca8750ef238428e1f73aff43bf3988c3cc9ff0063d2c5b7b4b07"`
[INFO] [stdout] 5a6a490f2c13ca8750ef238428e1f73aff43bf3988c3cc9ff0063d2c5b7b4b07
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/proelbtn/school-calculator:/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] 18087bfc0635b0d4ed6f8b6119954cd4d5aa10315c0f3f99a96cf0060e27046a
[INFO] running `"docker" "start" "-a" "18087bfc0635b0d4ed6f8b6119954cd4d5aa10315c0f3f99a96cf0060e27046a"`
[INFO] [stderr]    Compiling school-calculator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `i` is never read
[INFO] [stderr]    --> src/main.rs:121:25
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 let mut i = 0;
[INFO] [stderr]     |                         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/main.rs:122:25
[INFO] [stderr]     |
[INFO] [stderr] 122 |                 let mut val: f64 = 0.;
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "18087bfc0635b0d4ed6f8b6119954cd4d5aa10315c0f3f99a96cf0060e27046a"`
[INFO] running `"docker" "rm" "-f" "18087bfc0635b0d4ed6f8b6119954cd4d5aa10315c0f3f99a96cf0060e27046a"`
[INFO] [stdout] 18087bfc0635b0d4ed6f8b6119954cd4d5aa10315c0f3f99a96cf0060e27046a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/proelbtn/school-calculator:/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] 3b0b0756d693cacd5b8adfbbd8370a47d4c68d69398badfa9c5161d92afc570c
[INFO] running `"docker" "start" "-a" "3b0b0756d693cacd5b8adfbbd8370a47d4c68d69398badfa9c5161d92afc570c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/school_calculator-4e86724c0eaeabfc
[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" "3b0b0756d693cacd5b8adfbbd8370a47d4c68d69398badfa9c5161d92afc570c"`
[INFO] running `"docker" "rm" "-f" "3b0b0756d693cacd5b8adfbbd8370a47d4c68d69398badfa9c5161d92afc570c"`
[INFO] [stdout] 3b0b0756d693cacd5b8adfbbd8370a47d4c68d69398badfa9c5161d92afc570c