[INFO] cloning repository https://github.com/frafra/brutegol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frafra/brutegol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrafra%2Fbrutegol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrafra%2Fbrutegol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 154791840fc5193e1009ca3d1cb8a82c216a8fb6
[INFO] testing frafra/brutegol against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrafra%2Fbrutegol" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frafra/brutegol on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/frafra/brutegol
[INFO] finished tweaking git repo https://github.com/frafra/brutegol
[INFO] tweaked toml for git repo https://github.com/frafra/brutegol written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/frafra/brutegol already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a81ebe2cac94a829d68f7bff18ef2b7f96b39500f5179564ed9c78aacfb8fcb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4a81ebe2cac94a829d68f7bff18ef2b7f96b39500f5179564ed9c78aacfb8fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a81ebe2cac94a829d68f7bff18ef2b7f96b39500f5179564ed9c78aacfb8fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a81ebe2cac94a829d68f7bff18ef2b7f96b39500f5179564ed9c78aacfb8fcb", kill_on_drop: false }`
[INFO] [stdout] 4a81ebe2cac94a829d68f7bff18ef2b7f96b39500f5179564ed9c78aacfb8fcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9e086554a7ccb5a7e2a4ced5b8e8c5898449fab6e672e86b645d8521e2dc27ef
[INFO] running `Command { std: "docker" "start" "-a" "9e086554a7ccb5a7e2a4ced5b8e8c5898449fab6e672e86b645d8521e2dc27ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling brutegol v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/main.rs:96:22
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn mirror_horizontal(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/main.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn mirror_vertical(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]     |                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/main.rs:100:32
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn mirror_vertical(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/main.rs:104:20
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn mirror_diagonal(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]     |                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/main.rs:116:27
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn rotate_180(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `columns`
[INFO] [stdout]    --> src/main.rs:116:40
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn rotate_180(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.61s
[INFO] running `Command { std: "docker" "inspect" "9e086554a7ccb5a7e2a4ced5b8e8c5898449fab6e672e86b645d8521e2dc27ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e086554a7ccb5a7e2a4ced5b8e8c5898449fab6e672e86b645d8521e2dc27ef", kill_on_drop: false }`
[INFO] [stdout] 9e086554a7ccb5a7e2a4ced5b8e8c5898449fab6e672e86b645d8521e2dc27ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e0e750acd3ad41358cb3b888a562476e7316bf250a2264d6edb27a36c5aa1fc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7e0e750acd3ad41358cb3b888a562476e7316bf250a2264d6edb27a36c5aa1fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.1
[INFO] [stderr]    Compiling brutegol v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/main.rs:96:22
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn mirror_horizontal(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/main.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn mirror_vertical(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]     |                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/main.rs:100:32
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn mirror_vertical(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/main.rs:104:20
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn mirror_diagonal(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]     |                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/main.rs:116:27
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn rotate_180(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `columns`
[INFO] [stdout]    --> src/main.rs:116:40
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn rotate_180(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stdout]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.92s
[INFO] running `Command { std: "docker" "inspect" "7e0e750acd3ad41358cb3b888a562476e7316bf250a2264d6edb27a36c5aa1fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e0e750acd3ad41358cb3b888a562476e7316bf250a2264d6edb27a36c5aa1fc", kill_on_drop: false }`
[INFO] [stdout] 7e0e750acd3ad41358cb3b888a562476e7316bf250a2264d6edb27a36c5aa1fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aeee22b158be669540bb63f788469dc59686ddbee4e6447d5ef2ec17ffa43593
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aeee22b158be669540bb63f788469dc59686ddbee4e6447d5ef2ec17ffa43593", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]   --> src/main.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn mirror_horizontal(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/main.rs:100:20
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn mirror_vertical(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rows`
[INFO] [stderr]    --> src/main.rs:100:32
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn mirror_vertical(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/main.rs:104:20
[INFO] [stderr]     |
[INFO] [stderr] 104 | fn mirror_diagonal(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rows`
[INFO] [stderr]    --> src/main.rs:116:27
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn rotate_180(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `columns`
[INFO] [stderr]    --> src/main.rs:116:40
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn rotate_180(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/brutegol-cc727014d6105f1c
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test::next_test ... ok
[INFO] [stdout] test test::discover_test ... ok
[INFO] [stdout] test test::mirror_horizontal_vertical ... ok
[INFO] [stdout] test test::rotate_180_test ... ok
[INFO] [stdout] test test::mirror_diagonal_test ... ok
[INFO] [stdout] test test::show_test ... ok
[INFO] [stdout] test test::mirror_horizontal_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aeee22b158be669540bb63f788469dc59686ddbee4e6447d5ef2ec17ffa43593", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeee22b158be669540bb63f788469dc59686ddbee4e6447d5ef2ec17ffa43593", kill_on_drop: false }`
[INFO] [stdout] aeee22b158be669540bb63f788469dc59686ddbee4e6447d5ef2ec17ffa43593