[INFO] cloning repository https://github.com/michaelshum321/todo-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michaelshum321/todo-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelshum321%2Ftodo-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelshum321%2Ftodo-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64add0aa044f80c68287065c842805e3293610d6
[INFO] checking michaelshum321/todo-rust against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelshum321%2Ftodo-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michaelshum321/todo-rust on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/michaelshum321/todo-rust
[INFO] finished tweaking git repo https://github.com/michaelshum321/todo-rust
[INFO] tweaked toml for git repo https://github.com/michaelshum321/todo-rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/michaelshum321/todo-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 109d0d060c828da1ab13c55fe5d477784773d3e0e29c323943ca9af80ade6511
[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" "109d0d060c828da1ab13c55fe5d477784773d3e0e29c323943ca9af80ade6511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "109d0d060c828da1ab13c55fe5d477784773d3e0e29c323943ca9af80ade6511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "109d0d060c828da1ab13c55fe5d477784773d3e0e29c323943ca9af80ade6511", kill_on_drop: false }`
[INFO] [stdout] 109d0d060c828da1ab13c55fe5d477784773d3e0e29c323943ca9af80ade6511
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bd5405c89d5e4a1d6fe4151838604795cc01ddfdffcd0d8469449bdf80e920b
[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" "1bd5405c89d5e4a1d6fe4151838604795cc01ddfdffcd0d8469449bdf80e920b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.20.0
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking rusqlite v0.24.0
[INFO] [stderr]     Checking todo-app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Context`
[INFO] [stdout]  --> src/controller.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Context {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `todo`
[INFO] [stdout]  --> src/controller.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     todo: Todo
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Context`
[INFO] [stdout]  --> src/controller.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Context {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `todo`
[INFO] [stdout]  --> src/controller.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     todo: Todo
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "1bd5405c89d5e4a1d6fe4151838604795cc01ddfdffcd0d8469449bdf80e920b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bd5405c89d5e4a1d6fe4151838604795cc01ddfdffcd0d8469449bdf80e920b", kill_on_drop: false }`
[INFO] [stdout] 1bd5405c89d5e4a1d6fe4151838604795cc01ddfdffcd0d8469449bdf80e920b