[INFO] updating cached repository anetcher/rust_boj
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/anetcher/rust_boj
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/anetcher/rust_boj" "work/ex/beta-1.37-6/sources/1.36.0/gh/anetcher/rust_boj"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/anetcher/rust_boj'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/anetcher/rust_boj" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anetcher/rust_boj"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anetcher/rust_boj'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7cd9e1dc6f668f6fa18b71f6428411907d69269c
[INFO] sha for GitHub repo anetcher/rust_boj: 7cd9e1dc6f668f6fa18b71f6428411907d69269c
[INFO] validating manifest of anetcher/rust_boj 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 anetcher/rust_boj 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 anetcher/rust_boj
[INFO] finished frobbing anetcher/rust_boj
[INFO] frobbed toml for anetcher/rust_boj written to work/ex/beta-1.37-6/sources/1.36.0/gh/anetcher/rust_boj/Cargo.toml
[INFO] started frobbing anetcher/rust_boj
[INFO] finished frobbing anetcher/rust_boj
[INFO] frobbed toml for anetcher/rust_boj written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anetcher/rust_boj/Cargo.toml
[INFO] crate anetcher/rust_boj 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing anetcher/rust_boj against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anetcher/rust_boj:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 003b0563d5a33c2cc138b6991c58046cb23ccaf453b313c5a7f1cb2bebe0d292
[INFO] running `"docker" "start" "-a" "003b0563d5a33c2cc138b6991c58046cb23ccaf453b313c5a7f1cb2bebe0d292"`
[INFO] [stderr]    Compiling rust_boj v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/print_star/_2442.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     for i in 0..N {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_self_number`
[INFO] [stderr]  --> src/_4673.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn print_self_number(limit: i32) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `d`
[INFO] [stderr]   --> src/_4673.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn d(n: &i32) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `accumulate`
[INFO] [stderr]   --> src/_4673.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn accumulate(x: &i32) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_star`
[INFO] [stderr]  --> src/print_star/_2442.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn print_star() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `N` should have a snake case name
[INFO] [stderr]  --> src/print_star/_2442.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut N: i32 = 0;
[INFO] [stderr]   |             ^ help: convert the identifier to snake case: `n`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "003b0563d5a33c2cc138b6991c58046cb23ccaf453b313c5a7f1cb2bebe0d292"`
[INFO] running `"docker" "rm" "-f" "003b0563d5a33c2cc138b6991c58046cb23ccaf453b313c5a7f1cb2bebe0d292"`
[INFO] [stdout] 003b0563d5a33c2cc138b6991c58046cb23ccaf453b313c5a7f1cb2bebe0d292
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anetcher/rust_boj:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 285f7477a33dc9ce134c682d2d578b8cc7629a8badd9e10f6043ebc251d2f584
[INFO] running `"docker" "start" "-a" "285f7477a33dc9ce134c682d2d578b8cc7629a8badd9e10f6043ebc251d2f584"`
[INFO] [stderr]    Compiling rust_boj v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/print_star/_2442.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     for i in 0..N {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_self_number`
[INFO] [stderr]  --> src/_4673.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn print_self_number(limit: i32) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `d`
[INFO] [stderr]   --> src/_4673.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn d(n: &i32) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `accumulate`
[INFO] [stderr]   --> src/_4673.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn accumulate(x: &i32) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_star`
[INFO] [stderr]  --> src/print_star/_2442.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn print_star() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `N` should have a snake case name
[INFO] [stderr]  --> src/print_star/_2442.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut N: i32 = 0;
[INFO] [stderr]   |             ^ help: convert the identifier to snake case: `n`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "285f7477a33dc9ce134c682d2d578b8cc7629a8badd9e10f6043ebc251d2f584"`
[INFO] running `"docker" "rm" "-f" "285f7477a33dc9ce134c682d2d578b8cc7629a8badd9e10f6043ebc251d2f584"`
[INFO] [stdout] 285f7477a33dc9ce134c682d2d578b8cc7629a8badd9e10f6043ebc251d2f584
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anetcher/rust_boj:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 4575dd0572e0d13d1b497819babfae6fea36a1e4af70b744b8ed4569b772be7e
[INFO] running `"docker" "start" "-a" "4575dd0572e0d13d1b497819babfae6fea36a1e4af70b744b8ed4569b772be7e"`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_boj-46b58ad03731dcd6
[INFO] running `"docker" "inspect" "4575dd0572e0d13d1b497819babfae6fea36a1e4af70b744b8ed4569b772be7e"`
[INFO] running `"docker" "rm" "-f" "4575dd0572e0d13d1b497819babfae6fea36a1e4af70b744b8ed4569b772be7e"`
[INFO] [stdout] 4575dd0572e0d13d1b497819babfae6fea36a1e4af70b744b8ed4569b772be7e