[INFO] cloning repository https://github.com/sarvex/cpp-x-maelstrom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sarvex/cpp-x-maelstrom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarvex%2Fcpp-x-maelstrom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarvex%2Fcpp-x-maelstrom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f16c5139cf6955dcbd5f2195727ebfa06f14b910
[INFO] testing sarvex/cpp-x-maelstrom against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarvex%2Fcpp-x-maelstrom" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sarvex/cpp-x-maelstrom
[INFO] finished tweaking git repo https://github.com/sarvex/cpp-x-maelstrom
[INFO] tweaked toml for git repo https://github.com/sarvex/cpp-x-maelstrom written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sarvex/cpp-x-maelstrom on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sarvex/cpp-x-maelstrom already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1722f37bc1119808ebae8535b2b66510dd7b3f32a98bae76b93e49bcb332ae15
[INFO] running `Command { std: "docker" "start" "-a" "1722f37bc1119808ebae8535b2b66510dd7b3f32a98bae76b93e49bcb332ae15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1722f37bc1119808ebae8535b2b66510dd7b3f32a98bae76b93e49bcb332ae15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1722f37bc1119808ebae8535b2b66510dd7b3f32a98bae76b93e49bcb332ae15", kill_on_drop: false }`
[INFO] [stdout] 1722f37bc1119808ebae8535b2b66510dd7b3f32a98bae76b93e49bcb332ae15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8de54b0084d18b1462519884c6bb201a51e989664e290e604c983949f7a9544f
[INFO] running `Command { std: "docker" "start" "-a" "8de54b0084d18b1462519884c6bb201a51e989664e290e604c983949f7a9544f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling maelstrom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `send_all` is never used
[INFO] [stdout]   --> src/sender.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Sender {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn send_all(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.99s
[INFO] running `Command { std: "docker" "inspect" "8de54b0084d18b1462519884c6bb201a51e989664e290e604c983949f7a9544f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8de54b0084d18b1462519884c6bb201a51e989664e290e604c983949f7a9544f", kill_on_drop: false }`
[INFO] [stdout] 8de54b0084d18b1462519884c6bb201a51e989664e290e604c983949f7a9544f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20f8b5b951eb37a58930b35a13320b5a1971f137476cba6ae8d1f72ed994af94
[INFO] running `Command { std: "docker" "start" "-a" "20f8b5b951eb37a58930b35a13320b5a1971f137476cba6ae8d1f72ed994af94", kill_on_drop: false }`
[INFO] [stderr]    Compiling maelstrom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `send_all` is never used
[INFO] [stdout]   --> src/sender.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Sender {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn send_all(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "20f8b5b951eb37a58930b35a13320b5a1971f137476cba6ae8d1f72ed994af94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20f8b5b951eb37a58930b35a13320b5a1971f137476cba6ae8d1f72ed994af94", kill_on_drop: false }`
[INFO] [stdout] 20f8b5b951eb37a58930b35a13320b5a1971f137476cba6ae8d1f72ed994af94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee5e4b0b6a2ad9d5121641496db16350ece45dd93e01a26556993c2251e0e85e
[INFO] running `Command { std: "docker" "start" "-a" "ee5e4b0b6a2ad9d5121641496db16350ece45dd93e01a26556993c2251e0e85e", kill_on_drop: false }`
[INFO] [stderr] warning: method `send_all` is never used
[INFO] [stdout] 
[INFO] [stderr]   --> src/sender.rs:23:12
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]  8 | impl Sender {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stdout] 
[INFO] [stderr] ...
[INFO] [stderr] 23 |     pub fn send_all(&mut self) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `maelstrom` (bin "maelstrom" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/maelstrom-1abafb3c35b68963)
[INFO] running `Command { std: "docker" "inspect" "ee5e4b0b6a2ad9d5121641496db16350ece45dd93e01a26556993c2251e0e85e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee5e4b0b6a2ad9d5121641496db16350ece45dd93e01a26556993c2251e0e85e", kill_on_drop: false }`
[INFO] [stdout] ee5e4b0b6a2ad9d5121641496db16350ece45dd93e01a26556993c2251e0e85e