[INFO] cloning repository https://github.com/TheSamsa/Rechenmauer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheSamsa/Rechenmauer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheSamsa%2FRechenmauer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheSamsa%2FRechenmauer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 169ebbe710e481c9841b0db7ba67b72ec83f8d77
[INFO] checking TheSamsa/Rechenmauer against master#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheSamsa%2FRechenmauer" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TheSamsa/Rechenmauer on toolchain 3e826bb11228508fbe749e594038d6727208aa94
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TheSamsa/Rechenmauer
[INFO] finished tweaking git repo https://github.com/TheSamsa/Rechenmauer
[INFO] tweaked toml for git repo https://github.com/TheSamsa/Rechenmauer written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/TheSamsa/Rechenmauer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", 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] 47426e6ef522f3b196e7fb11d3c07fa815467a5de16c7d96c9b3be656c69360a
[INFO] running `Command { std: "docker" "start" "-a" "47426e6ef522f3b196e7fb11d3c07fa815467a5de16c7d96c9b3be656c69360a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47426e6ef522f3b196e7fb11d3c07fa815467a5de16c7d96c9b3be656c69360a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47426e6ef522f3b196e7fb11d3c07fa815467a5de16c7d96c9b3be656c69360a", kill_on_drop: false }`
[INFO] [stdout] 47426e6ef522f3b196e7fb11d3c07fa815467a5de16c7d96c9b3be656c69360a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc30bba9033b8f1897f5d24bdfd456e17fe1be822e27e0693f66b1025e42d1c6
[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" "bc30bba9033b8f1897f5d24bdfd456e17fe1be822e27e0693f66b1025e42d1c6", kill_on_drop: false }`
[INFO] [stderr]     Checking rechenmauer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/mauer/block_map.rs:144:61
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 .fold(BTreeMap::new(), |mut equation, (pos, val)| {
[INFO] [stdout]     |                                                             ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/mauer/block_map.rs:144:61
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 .fold(BTreeMap::new(), |mut equation, (pos, val)| {
[INFO] [stdout]     |                                                             ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spire`
[INFO] [stdout]   --> src/mauer/block_map.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn spire() -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left_lane`
[INFO] [stdout]    --> src/mauer/block_map.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn left_lane(&self) -> BTreeMap<&Position, &Option<isize>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right_lane`
[INFO] [stdout]    --> src/mauer/block_map.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn right_lane(&self) -> BTreeMap<&Position, &Option<isize>> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_top`
[INFO] [stdout]    --> src/mauer/block_map.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn is_top(&self, pos: &Position) -> bool {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spire`
[INFO] [stdout]   --> src/mauer/block_map.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn spire() -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left_lane`
[INFO] [stdout]    --> src/mauer/block_map.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn left_lane(&self) -> BTreeMap<&Position, &Option<isize>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right_lane`
[INFO] [stdout]    --> src/mauer/block_map.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn right_lane(&self) -> BTreeMap<&Position, &Option<isize>> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_top`
[INFO] [stdout]    --> src/mauer/block_map.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn is_top(&self, pos: &Position) -> bool {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "bc30bba9033b8f1897f5d24bdfd456e17fe1be822e27e0693f66b1025e42d1c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc30bba9033b8f1897f5d24bdfd456e17fe1be822e27e0693f66b1025e42d1c6", kill_on_drop: false }`
[INFO] [stdout] bc30bba9033b8f1897f5d24bdfd456e17fe1be822e27e0693f66b1025e42d1c6