[INFO] cloning repository https://github.com/ArkadyRudenko/maelstrom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ArkadyRudenko/maelstrom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArkadyRudenko%2Fmaelstrom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArkadyRudenko%2Fmaelstrom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98ce741f20a6aaf54410bd31edbafe072a307224
[INFO] building ArkadyRudenko/maelstrom against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArkadyRudenko%2Fmaelstrom" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ArkadyRudenko/maelstrom on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ArkadyRudenko/maelstrom
[INFO] finished tweaking git repo https://github.com/ArkadyRudenko/maelstrom
[INFO] tweaked toml for git repo https://github.com/ArkadyRudenko/maelstrom written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ArkadyRudenko/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" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93844d4bd0206d67ae51464a6235f0020d537a51f82c3141800960bf48166a53
[INFO] running `Command { std: "docker" "start" "-a" "93844d4bd0206d67ae51464a6235f0020d537a51f82c3141800960bf48166a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93844d4bd0206d67ae51464a6235f0020d537a51f82c3141800960bf48166a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93844d4bd0206d67ae51464a6235f0020d537a51f82c3141800960bf48166a53", kill_on_drop: false }`
[INFO] [stdout] 93844d4bd0206d67ae51464a6235f0020d537a51f82c3141800960bf48166a53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3697d8b5fe480c3fffe91af68917b9ca4638f1c8ba106bed41cb67febfafc410
[INFO] running `Command { std: "docker" "start" "-a" "3697d8b5fe480c3fffe91af68917b9ca4638f1c8ba106bed41cb67febfafc410", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling serde_json v1.0.102
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling pin-project-lite v0.2.12
[INFO] [stderr]    Compiling itoa v1.0.8
[INFO] [stderr]    Compiling ryu v1.0.14
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling socket2 v0.5.3
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling tokio v1.32.0
[INFO] [stderr]    Compiling maelstrom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `topology`
[INFO] [stdout]    --> src/bin/broadcast.rs:139:41
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     Payload::Topology { mut topology } => {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^ help: try ignoring the field: `topology: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Gossip` is never constructed
[INFO] [stdout]   --> src/bin/grow_only_counter.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum InjectedPayload {
[INFO] [stdout]    |      --------------- variant in this enum
[INFO] [stdout] 20 |     Gossip,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `node_id`, `node_count`, and `tx` are never read
[INFO] [stdout]   --> src/bin/grow_only_counter.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct CounterNode {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] 24 |     id: usize,
[INFO] [stdout] 25 |     node_id: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 26 |     node_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     tx: tokio::sync::mpsc::Sender<Event<Payload, InjectedPayload>>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/broadcast.rs:139:41
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     Payload::Topology { mut topology } => {
[INFO] [stdout]     |                                         ----^^^^^^^^
[INFO] [stdout]     |                                         |
[INFO] [stdout]     |                                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/broadcast.rs:141:29
[INFO] [stdout]     |
[INFO] [stdout] 141 |                         let mut id: i32 = id.parse().expect(
[INFO] [stdout]     |                             ----^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.95s
[INFO] running `Command { std: "docker" "inspect" "3697d8b5fe480c3fffe91af68917b9ca4638f1c8ba106bed41cb67febfafc410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3697d8b5fe480c3fffe91af68917b9ca4638f1c8ba106bed41cb67febfafc410", kill_on_drop: false }`
[INFO] [stdout] 3697d8b5fe480c3fffe91af68917b9ca4638f1c8ba106bed41cb67febfafc410
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 482fc42f6ffe1fc2777b9eb3782a715f6054a2d19c4ea65e7647f5719258b471
[INFO] running `Command { std: "docker" "start" "-a" "482fc42f6ffe1fc2777b9eb3782a715f6054a2d19c4ea65e7647f5719258b471", kill_on_drop: false }`
[INFO] [stderr]    Compiling maelstrom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `topology`
[INFO] [stdout]    --> src/bin/broadcast.rs:139:41
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     Payload::Topology { mut topology } => {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^ help: try ignoring the field: `topology: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/broadcast.rs:139:41
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     Payload::Topology { mut topology } => {
[INFO] [stdout]     |                                         ----^^^^^^^^
[INFO] [stdout]     |                                         |
[INFO] [stdout]     |                                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/broadcast.rs:141:29
[INFO] [stdout]     |
[INFO] [stdout] 141 |                         let mut id: i32 = id.parse().expect(
[INFO] [stdout]     |                             ----^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Gossip` is never constructed
[INFO] [stdout]   --> src/bin/grow_only_counter.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum InjectedPayload {
[INFO] [stdout]    |      --------------- variant in this enum
[INFO] [stdout] 20 |     Gossip,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `node_id`, `node_count`, and `tx` are never read
[INFO] [stdout]   --> src/bin/grow_only_counter.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct CounterNode {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] 24 |     id: usize,
[INFO] [stdout] 25 |     node_id: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 26 |     node_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     tx: tokio::sync::mpsc::Sender<Event<Payload, InjectedPayload>>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "482fc42f6ffe1fc2777b9eb3782a715f6054a2d19c4ea65e7647f5719258b471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "482fc42f6ffe1fc2777b9eb3782a715f6054a2d19c4ea65e7647f5719258b471", kill_on_drop: false }`
[INFO] [stdout] 482fc42f6ffe1fc2777b9eb3782a715f6054a2d19c4ea65e7647f5719258b471
