[INFO] cloning repository https://github.com/c-cube/strictly_tally
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/c-cube/strictly_tally" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc-cube%2Fstrictly_tally", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc-cube%2Fstrictly_tally'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 355075a84f98b9192d3fcb4916ebfd5751c1c3e7
[INFO] checking c-cube/strictly_tally against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc-cube%2Fstrictly_tally" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/c-cube/strictly_tally on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/c-cube/strictly_tally
[INFO] finished tweaking git repo https://github.com/c-cube/strictly_tally
[INFO] tweaked toml for git repo https://github.com/c-cube/strictly_tally written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/c-cube/strictly_tally already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ef1dff3109744e68aa5b9983930056d4681f00e54bec6d0a23b35baebbb4f1f
[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" "1ef1dff3109744e68aa5b9983930056d4681f00e54bec6d0a23b35baebbb4f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ef1dff3109744e68aa5b9983930056d4681f00e54bec6d0a23b35baebbb4f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef1dff3109744e68aa5b9983930056d4681f00e54bec6d0a23b35baebbb4f1f", kill_on_drop: false }`
[INFO] [stdout] 1ef1dff3109744e68aa5b9983930056d4681f00e54bec6d0a23b35baebbb4f1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f568088a53ae650576afca0198e0274165338c19514ab4db4853cfc0e87af13
[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" "2f568088a53ae650576afca0198e0274165338c19514ab4db4853cfc0e87af13", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling serde v1.0.85
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking strictly_tally v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `notes`
[INFO] [stdout]    --> src/main.rs:299:20
[INFO] [stdout]     |
[INFO] [stdout] 299 |         let Sheet {notes, judges, competitors, ..} = self;
[INFO] [stdout]     |                    ^^^^^ help: try ignoring the field: `notes: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `judges`
[INFO] [stdout]    --> src/main.rs:299:27
[INFO] [stdout]     |
[INFO] [stdout] 299 |         let Sheet {notes, judges, competitors, ..} = self;
[INFO] [stdout]     |                           ^^^^^^ help: try ignoring the field: `judges: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `notes`
[INFO] [stdout]    --> src/main.rs:299:20
[INFO] [stdout]     |
[INFO] [stdout] 299 |         let Sheet {notes, judges, competitors, ..} = self;
[INFO] [stdout]     |                    ^^^^^ help: try ignoring the field: `notes: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `judges`
[INFO] [stdout]    --> src/main.rs:299:27
[INFO] [stdout]     |
[INFO] [stdout] 299 |         let Sheet {notes, judges, competitors, ..} = self;
[INFO] [stdout]     |                           ^^^^^^ help: try ignoring the field: `judges: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_one`
[INFO] [stdout]   --> src/main.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn as_one(&self) -> Option<&T> {
[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: `map`
[INFO] [stdout]   --> src/main.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn map<F, U>(&self, mut f: F) -> Cluster<U> where F: FnMut(&T) -> U {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]    --> src/main.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn from_str(s: &str) -> Res<Self> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:361:21
[INFO] [stdout]     |
[INFO] [stdout] 361 |                     write!(out, "{:?}", c);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:361:21
[INFO] [stdout]     |
[INFO] [stdout] 361 |                     write!(out, "{:?}", c);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.69s
[INFO] running `Command { std: "docker" "inspect" "2f568088a53ae650576afca0198e0274165338c19514ab4db4853cfc0e87af13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f568088a53ae650576afca0198e0274165338c19514ab4db4853cfc0e87af13", kill_on_drop: false }`
[INFO] [stdout] 2f568088a53ae650576afca0198e0274165338c19514ab4db4853cfc0e87af13