[INFO] cloning repository https://github.com/ryanavella/kassia
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryanavella/kassia" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanavella%2Fkassia", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanavella%2Fkassia'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c27c879417c8ef9d6989192b290c2428f62dfbba
[INFO] checking ryanavella/kassia against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanavella%2Fkassia" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanavella/kassia on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryanavella/kassia
[INFO] finished tweaking git repo https://github.com/ryanavella/kassia
[INFO] tweaked toml for git repo https://github.com/ryanavella/kassia written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanavella/kassia already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d530c8fd4f63cb661a8e9684fd7c43e863bb4c65f1637d01188a1f810279f856
[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" "d530c8fd4f63cb661a8e9684fd7c43e863bb4c65f1637d01188a1f810279f856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d530c8fd4f63cb661a8e9684fd7c43e863bb4c65f1637d01188a1f810279f856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d530c8fd4f63cb661a8e9684fd7c43e863bb4c65f1637d01188a1f810279f856", kill_on_drop: false }`
[INFO] [stdout] d530c8fd4f63cb661a8e9684fd7c43e863bb4c65f1637d01188a1f810279f856
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90bd7e8d97154534198cafe71a496f2ab9b293f42c57fd6226ad769938ba72c8
[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" "90bd7e8d97154534198cafe71a496f2ab9b293f42c57fd6226ad769938ba72c8", kill_on_drop: false }`
[INFO] [stderr]     Checking kassia v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Node`
[INFO] [stdout]    --> src/main.rs:429:8
[INFO] [stdout]     |
[INFO] [stdout] 429 | struct Node {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `NodeKind`
[INFO] [stdout]    --> src/main.rs:433:6
[INFO] [stdout]     |
[INFO] [stdout] 433 | enum NodeKind {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]    --> src/main.rs:438:8
[INFO] [stdout]     |
[INFO] [stdout] 438 | struct Parser {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/main.rs:443:14
[INFO] [stdout]     |
[INFO] [stdout] 443 |     const fn new(lexer: Lexer) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Node`
[INFO] [stdout]    --> src/main.rs:429:8
[INFO] [stdout]     |
[INFO] [stdout] 429 | struct Node {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `NodeKind`
[INFO] [stdout]    --> src/main.rs:433:6
[INFO] [stdout]     |
[INFO] [stdout] 433 | enum NodeKind {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]    --> src/main.rs:438:8
[INFO] [stdout]     |
[INFO] [stdout] 438 | struct Parser {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/main.rs:443:14
[INFO] [stdout]     |
[INFO] [stdout] 443 |     const fn new(lexer: Lexer) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "90bd7e8d97154534198cafe71a496f2ab9b293f42c57fd6226ad769938ba72c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90bd7e8d97154534198cafe71a496f2ab9b293f42c57fd6226ad769938ba72c8", kill_on_drop: false }`
[INFO] [stdout] 90bd7e8d97154534198cafe71a496f2ab9b293f42c57fd6226ad769938ba72c8