[INFO] cloning repository https://github.com/ConnorSkees/ski
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ConnorSkees/ski" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorSkees%2Fski", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorSkees%2Fski'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51ced065d15b86fdca8ef43fd158fc53c21c4836
[INFO] checking ConnorSkees/ski against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorSkees%2Fski" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ConnorSkees/ski on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ConnorSkees/ski
[INFO] finished tweaking git repo https://github.com/ConnorSkees/ski
[INFO] tweaked toml for git repo https://github.com/ConnorSkees/ski written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ConnorSkees/ski already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6cce4ac0813f95c9a0dc7c3aa20a4fc41d84187e6327543a0f249b7ec8a4fd9
[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" "f6cce4ac0813f95c9a0dc7c3aa20a4fc41d84187e6327543a0f249b7ec8a4fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6cce4ac0813f95c9a0dc7c3aa20a4fc41d84187e6327543a0f249b7ec8a4fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6cce4ac0813f95c9a0dc7c3aa20a4fc41d84187e6327543a0f249b7ec8a4fd9", kill_on_drop: false }`
[INFO] [stdout] f6cce4ac0813f95c9a0dc7c3aa20a4fc41d84187e6327543a0f249b7ec8a4fd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c4696a60d43773ba137226cccf45f5ca2223ee653cdf4e33e5684ed8f7975b1
[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" "7c4696a60d43773ba137226cccf45f5ca2223ee653cdf4e33e5684ed8f7975b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking ski v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/compiler.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         unimplemented!();
[INFO] [stdout]     |         ----------------- any code following this expression is unreachable
[INFO] [stdout] 169 |         Ok(())
[INFO] [stdout]     |         ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/compiler.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         unimplemented!();
[INFO] [stdout]     |         ----------------- any code following this expression is unreachable
[INFO] [stdout] 174 |         Ok(())
[INFO] [stdout]     |         ^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/compiler.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         unimplemented!();
[INFO] [stdout]     |         ----------------- any code following this expression is unreachable
[INFO] [stdout] 169 |         Ok(())
[INFO] [stdout]     |         ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/compiler.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         unimplemented!();
[INFO] [stdout]     |         ----------------- any code following this expression is unreachable
[INFO] [stdout] 174 |         Ok(())
[INFO] [stdout]     |         ^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ast`
[INFO] [stdout]    --> src/compiler.rs:172:42
[INFO] [stdout]     |
[INFO] [stdout] 172 |     pub fn compile_const_decl(&mut self, ast: Box<ConstDecl>) -> io::Result<()> {
[INFO] [stdout]     |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ast`
[INFO] [stdout]    --> src/compiler.rs:172:42
[INFO] [stdout]     |
[INFO] [stdout] 172 |     pub fn compile_const_decl(&mut self, ast: Box<ConstDecl>) -> io::Result<()> {
[INFO] [stdout]     |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.94s
[INFO] running `Command { std: "docker" "inspect" "7c4696a60d43773ba137226cccf45f5ca2223ee653cdf4e33e5684ed8f7975b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c4696a60d43773ba137226cccf45f5ca2223ee653cdf4e33e5684ed8f7975b1", kill_on_drop: false }`
[INFO] [stdout] 7c4696a60d43773ba137226cccf45f5ca2223ee653cdf4e33e5684ed8f7975b1