[INFO] cloning repository https://github.com/ColonelPhantom/lubberts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ColonelPhantom/lubberts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FColonelPhantom%2Flubberts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FColonelPhantom%2Flubberts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5fc09a79947575e86d52e2222c7127c96a4be6c
[INFO] checking ColonelPhantom/lubberts against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FColonelPhantom%2Flubberts" "/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/ColonelPhantom/lubberts on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ColonelPhantom/lubberts
[INFO] finished tweaking git repo https://github.com/ColonelPhantom/lubberts
[INFO] tweaked toml for git repo https://github.com/ColonelPhantom/lubberts written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ColonelPhantom/lubberts already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a8974e22a597725108fb3f9efb127be0a4e47b41ab9bce9e895b8ef9d4f951a1
[INFO] running `Command { std: "docker" "start" "-a" "a8974e22a597725108fb3f9efb127be0a4e47b41ab9bce9e895b8ef9d4f951a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8974e22a597725108fb3f9efb127be0a4e47b41ab9bce9e895b8ef9d4f951a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8974e22a597725108fb3f9efb127be0a4e47b41ab9bce9e895b8ef9d4f951a1", kill_on_drop: false }`
[INFO] [stdout] a8974e22a597725108fb3f9efb127be0a4e47b41ab9bce9e895b8ef9d4f951a1
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9d1d38368cd3449b56304444ad0d8f08f1d21a9fc118bb1671b8a901906950e5
[INFO] running `Command { std: "docker" "start" "-a" "9d1d38368cd3449b56304444ad0d8f08f1d21a9fc118bb1671b8a901906950e5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking lubberts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/chunk.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |             Err(e) => return Err(ParseError::InvalidString),
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[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/chunk.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut c = Chunk {};
[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: variant is never constructed: `InvalidString`
[INFO] [stdout]   --> src/chunk.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     InvalidString,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LuaString`
[INFO] [stdout]   --> src/chunk.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct LuaString {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]   --> src/chunk.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from_bytes(bytes: &[u8]) -> Result<Self, ParseError> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/chunk.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |             Err(e) => return Err(ParseError::InvalidString),
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[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/chunk.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut c = Chunk {};
[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: variant is never constructed: `InvalidString`
[INFO] [stdout]   --> src/chunk.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     InvalidString,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LuaString`
[INFO] [stdout]   --> src/chunk.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct LuaString {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]   --> src/chunk.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from_bytes(bytes: &[u8]) -> Result<Self, ParseError> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "9d1d38368cd3449b56304444ad0d8f08f1d21a9fc118bb1671b8a901906950e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d1d38368cd3449b56304444ad0d8f08f1d21a9fc118bb1671b8a901906950e5", kill_on_drop: false }`
[INFO] [stdout] 9d1d38368cd3449b56304444ad0d8f08f1d21a9fc118bb1671b8a901906950e5