[INFO] cloning repository https://github.com/lbrande/18-chesapeake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lbrande/18-chesapeake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbrande%2F18-chesapeake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbrande%2F18-chesapeake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e485fa3f30057b006d08cbc09198074319a24d0
[INFO] checking lbrande/18-chesapeake against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbrande%2F18-chesapeake" "/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/lbrande/18-chesapeake on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lbrande/18-chesapeake
[INFO] finished tweaking git repo https://github.com/lbrande/18-chesapeake
[INFO] tweaked toml for git repo https://github.com/lbrande/18-chesapeake written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/lbrande/18-chesapeake already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dfc21c4a79a9a5fe0697abd068a93939026d6ee9901e4d2e1675a4cdd498365
[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" "0dfc21c4a79a9a5fe0697abd068a93939026d6ee9901e4d2e1675a4cdd498365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dfc21c4a79a9a5fe0697abd068a93939026d6ee9901e4d2e1675a4cdd498365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dfc21c4a79a9a5fe0697abd068a93939026d6ee9901e4d2e1675a4cdd498365", kill_on_drop: false }`
[INFO] [stdout] 0dfc21c4a79a9a5fe0697abd068a93939026d6ee9901e4d2e1675a4cdd498365
[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=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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--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] 34a64d7ae267def00faa9c02badd7fb3b94b20ba5d910b34aeac4542ce675c6d
[INFO] running `Command { std: "docker" "start" "-a" "34a64d7ae267def00faa9c02badd7fb3b94b20ba5d910b34aeac4542ce675c6d", kill_on_drop: false }`
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking lib v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> lib/src/economy/stock_chart.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 |     values: Vec<Vec<(u32)>>,
[INFO] [stdout]    |                     ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> lib/src/economy/stock_chart.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 |     values: Vec<Vec<(u32)>>,
[INFO] [stdout]    |                     ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> lib/src/geography/map.rs:117:19
[INFO] [stdout]     |
[INFO] [stdout] 117 |             for &(x, y, edge) in stations {}
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> lib/src/geography/map.rs:117:22
[INFO] [stdout]     |
[INFO] [stdout] 117 |             for &(x, y, edge) in stations {}
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edge`
[INFO] [stdout]    --> lib/src/geography/map.rs:117:25
[INFO] [stdout]     |
[INFO] [stdout] 117 |             for &(x, y, edge) in stations {}
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_edge`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> lib/src/geography/map.rs:117:19
[INFO] [stdout]     |
[INFO] [stdout] 117 |             for &(x, y, edge) in stations {}
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> lib/src/geography/map.rs:117:22
[INFO] [stdout]     |
[INFO] [stdout] 117 |             for &(x, y, edge) in stations {}
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edge`
[INFO] [stdout]    --> lib/src/geography/map.rs:117:25
[INFO] [stdout]     |
[INFO] [stdout] 117 |             for &(x, y, edge) in stations {}
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_edge`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> lib/src/geography/track_lay_map.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub(crate) fn insert(&mut self, key: (usize, usize), value: (i32, u32)) {
[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: `insert`
[INFO] [stdout]   --> lib/src/geography/track_lay_map.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub(crate) fn insert(&mut self, key: (usize, usize), value: (i32, u32)) {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir/server)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "34a64d7ae267def00faa9c02badd7fb3b94b20ba5d910b34aeac4542ce675c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a64d7ae267def00faa9c02badd7fb3b94b20ba5d910b34aeac4542ce675c6d", kill_on_drop: false }`
[INFO] [stdout] 34a64d7ae267def00faa9c02badd7fb3b94b20ba5d910b34aeac4542ce675c6d