[INFO] cloning repository https://github.com/davirieser/Maelstrom [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davirieser/Maelstrom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavirieser%2FMaelstrom", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavirieser%2FMaelstrom'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a256bdd87736bd754544736e9fba0a5a3510c0db [INFO] checking davirieser/Maelstrom/a256bdd87736bd754544736e9fba0a5a3510c0db against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavirieser%2FMaelstrom" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/davirieser/Maelstrom on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/davirieser/Maelstrom [INFO] finished tweaking git repo https://github.com/davirieser/Maelstrom [INFO] tweaked toml for git repo https://github.com/davirieser/Maelstrom written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/davirieser/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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded debug_print v1.0.0 [INFO] [stderr] Downloaded serde v1.0.188 [INFO] [stderr] Downloaded serde_derive v1.0.188 [INFO] [stderr] Downloaded serde_json v1.0.105 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b3f8b7b5baa549fbcc20ec1fb9fe6040682a00abeb6446c6fcab62ee2874205c [INFO] running `Command { std: "docker" "start" "-a" "b3f8b7b5baa549fbcc20ec1fb9fe6040682a00abeb6446c6fcab62ee2874205c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b3f8b7b5baa549fbcc20ec1fb9fe6040682a00abeb6446c6fcab62ee2874205c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3f8b7b5baa549fbcc20ec1fb9fe6040682a00abeb6446c6fcab62ee2874205c", kill_on_drop: false }` [INFO] [stdout] b3f8b7b5baa549fbcc20ec1fb9fe6040682a00abeb6446c6fcab62ee2874205c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3ff96087db3019b76514b89b4db045e6a370379bd11a0ff227cfb2b05301e316 [INFO] running `Command { std: "docker" "start" "-a" "3ff96087db3019b76514b89b4db045e6a370379bd11a0ff227cfb2b05301e316", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Compiling serde_json v1.0.105 [INFO] [stderr] Checking itoa v1.0.9 [INFO] [stderr] Checking ryu v1.0.15 [INFO] [stderr] Checking debug_print v1.0.0 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.31 [INFO] [stderr] Compiling serde_derive v1.0.188 [INFO] [stderr] Checking Maelstrom v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:126:47 [INFO] [stdout] | [INFO] [stdout] 126 | fn test_build_broadcast_topology_internal(mut topology: Topology) -> bool { [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/lib.rs:137:13 [INFO] [stdout] | [INFO] [stdout] 137 | let mut nodes: HashSet = topology.keys().cloned().collect(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:166:13 [INFO] [stdout] | [INFO] [stdout] 166 | let mut nodes: Vec = base_topology.keys().cloned().collect(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:170:17 [INFO] [stdout] | [INFO] [stdout] 170 | let mut broadcast_topology = build_broadcast_topology(node, &nodes, &base_topology); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec` [INFO] [stdout] --> src/lib.rs:192:21 [INFO] [stdout] | [INFO] [stdout] 192 | let mut vec = complete_topology.get_mut(node).unwrap(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_vec` [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/lib.rs:178:13 [INFO] [stdout] | [INFO] [stdout] 178 | let mut nodes: Vec = topologies.keys().cloned().collect(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:192:17 [INFO] [stdout] | [INFO] [stdout] 192 | let mut vec = complete_topology.get_mut(node).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cmp_node_ids` is never used [INFO] [stdout] --> src/lib.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | fn cmp_node_ids(id1: &str, id2: &str) -> Ordering { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.42s [INFO] running `Command { std: "docker" "inspect" "3ff96087db3019b76514b89b4db045e6a370379bd11a0ff227cfb2b05301e316", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ff96087db3019b76514b89b4db045e6a370379bd11a0ff227cfb2b05301e316", kill_on_drop: false }` [INFO] [stdout] 3ff96087db3019b76514b89b4db045e6a370379bd11a0ff227cfb2b05301e316