[INFO] cloning repository https://github.com/AlexSchunert/graph_lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlexSchunert/graph_lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexSchunert%2Fgraph_lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexSchunert%2Fgraph_lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cdef943c8e72e9c8479839500f7df2ea79da101
[INFO] checking AlexSchunert/graph_lib against master#a26e97be8826d408309fffbd8168362365719f50 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexSchunert%2Fgraph_lib" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlexSchunert/graph_lib on toolchain a26e97be8826d408309fffbd8168362365719f50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlexSchunert/graph_lib
[INFO] finished tweaking git repo https://github.com/AlexSchunert/graph_lib
[INFO] tweaked toml for git repo https://github.com/AlexSchunert/graph_lib written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AlexSchunert/graph_lib 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" "+a26e97be8826d408309fffbd8168362365719f50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd48a574a4791ef3bc5c2c4d9ea50d807db46ac203c1b2bfab36f0f8d38f35b2
[INFO] running `Command { std: "docker" "start" "-a" "cd48a574a4791ef3bc5c2c4d9ea50d807db46ac203c1b2bfab36f0f8d38f35b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd48a574a4791ef3bc5c2c4d9ea50d807db46ac203c1b2bfab36f0f8d38f35b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd48a574a4791ef3bc5c2c4d9ea50d807db46ac203c1b2bfab36f0f8d38f35b2", kill_on_drop: false }`
[INFO] [stdout] cd48a574a4791ef3bc5c2c4d9ea50d807db46ac203c1b2bfab36f0f8d38f35b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca4363f3319c904f56b1f3ff339e29390f039843d7479b55a733b87396d4d9c4
[INFO] running `Command { std: "docker" "start" "-a" "ca4363f3319c904f56b1f3ff339e29390f039843d7479b55a733b87396d4d9c4", kill_on_drop: false }`
[INFO] [stderr]     Checking graph_lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let mut edge12: graph::Edge = graph::Edge::new(0,node1.idx(),node2.idx());
[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/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut edge13: graph::Edge = graph::Edge::new(1,node1.idx(),node3.idx());
[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/main.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut edge23: graph::Edge = graph::Edge::new(2,node2.idx(),node3.idx());
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `m_idx`, `m_node_idx_start`, and `m_node_idx_end` are never read
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub struct Edge{
[INFO] [stdout]    |                ---- fields in this struct
[INFO] [stdout] 52 |         m_idx: u16,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 53 |         m_node_idx_start: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 54 |         m_node_idx_end: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let mut edge12: graph::Edge = graph::Edge::new(0,node1.idx(),node2.idx());
[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/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut edge13: graph::Edge = graph::Edge::new(1,node1.idx(),node3.idx());
[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/main.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut edge23: graph::Edge = graph::Edge::new(2,node2.idx(),node3.idx());
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `m_idx`, `m_node_idx_start`, and `m_node_idx_end` are never read
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub struct Edge{
[INFO] [stdout]    |                ---- fields in this struct
[INFO] [stdout] 52 |         m_idx: u16,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 53 |         m_node_idx_start: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 54 |         m_node_idx_end: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "ca4363f3319c904f56b1f3ff339e29390f039843d7479b55a733b87396d4d9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca4363f3319c904f56b1f3ff339e29390f039843d7479b55a733b87396d4d9c4", kill_on_drop: false }`
[INFO] [stdout] ca4363f3319c904f56b1f3ff339e29390f039843d7479b55a733b87396d4d9c4
