[INFO] cloning repository https://github.com/mnmaraes/csl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mnmaraes/csl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnmaraes%2Fcsl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnmaraes%2Fcsl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ede967fd1883afc0bf7da2a0baf60047a22a861
[INFO] checking mnmaraes/csl against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnmaraes%2Fcsl" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mnmaraes/csl on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mnmaraes/csl
[INFO] finished tweaking git repo https://github.com/mnmaraes/csl
[INFO] tweaked toml for git repo https://github.com/mnmaraes/csl written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mnmaraes/csl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f945d74ebabafa9a1c32e41988d4a1a7f87d9fbc6397e7d4fffdc0fb55584485
[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" "f945d74ebabafa9a1c32e41988d4a1a7f87d9fbc6397e7d4fffdc0fb55584485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f945d74ebabafa9a1c32e41988d4a1a7f87d9fbc6397e7d4fffdc0fb55584485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f945d74ebabafa9a1c32e41988d4a1a7f87d9fbc6397e7d4fffdc0fb55584485", kill_on_drop: false }`
[INFO] [stdout] f945d74ebabafa9a1c32e41988d4a1a7f87d9fbc6397e7d4fffdc0fb55584485
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecd0d5357162b2b076e59b663150069e79cf41858471fdd8f6c26ad516597714
[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" "ecd0d5357162b2b076e59b663150069e79cf41858471fdd8f6c26ad516597714", kill_on_drop: false }`
[INFO] [stderr]     Checking csl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/vm/mod.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 _ => {
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constant`
[INFO] [stdout]   --> src/vm/mod.rs:24:25
[INFO] [stdout]    |
[INFO] [stdout] 24 |                     let constant = chunk.get_const(*addr);
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constant`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/vm/mod.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 _ => {
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constant`
[INFO] [stdout]   --> src/vm/mod.rs:24:25
[INFO] [stdout]    |
[INFO] [stdout] 24 |                     let constant = chunk.get_const(*addr);
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constant`
[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/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut vm = VM::default();
[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:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut vm = VM::default();
[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: associated function is never used: `disassemble`
[INFO] [stdout]   --> src/vm/chunk.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn disassemble(&self, w: &mut dyn std::fmt::Write, name: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/vm/chunk.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn new(code: &'a [OpCode]) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Compile`
[INFO] [stdout]  --> src/vm/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Compile,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/vm/chunk.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn new(code: &'a [OpCode]) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Compile`
[INFO] [stdout]  --> src/vm/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Compile,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "ecd0d5357162b2b076e59b663150069e79cf41858471fdd8f6c26ad516597714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecd0d5357162b2b076e59b663150069e79cf41858471fdd8f6c26ad516597714", kill_on_drop: false }`
[INFO] [stdout] ecd0d5357162b2b076e59b663150069e79cf41858471fdd8f6c26ad516597714