[INFO] cloning repository https://github.com/AR2202/RustySKI
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AR2202/RustySKI" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAR2202%2FRustySKI", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAR2202%2FRustySKI'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62594c776b7c9d07c804fc6254e8664c62385627
[INFO] checking AR2202/RustySKI against try#f70ee28831acc074c109afab32d287057c3eca46 for pr-149389
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAR2202%2FRustySKI" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AR2202/RustySKI
[INFO] finished tweaking git repo https://github.com/AR2202/RustySKI
[INFO] tweaked toml for git repo https://github.com/AR2202/RustySKI written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AR2202/RustySKI on toolchain f70ee28831acc074c109afab32d287057c3eca46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AR2202/RustySKI already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfe1edbf78964aea7c1da0b1115bd0fe91675dea07d443ec5e77d39ca2c8ad0d
[INFO] running `Command { std: "docker" "start" "-a" "cfe1edbf78964aea7c1da0b1115bd0fe91675dea07d443ec5e77d39ca2c8ad0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfe1edbf78964aea7c1da0b1115bd0fe91675dea07d443ec5e77d39ca2c8ad0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe1edbf78964aea7c1da0b1115bd0fe91675dea07d443ec5e77d39ca2c8ad0d", kill_on_drop: false }`
[INFO] [stdout] cfe1edbf78964aea7c1da0b1115bd0fe91675dea07d443ec5e77d39ca2c8ad0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50cb4b0ea7efcf468effa6744a2a6277addf27cfb8dce263f7151d9be52c5f43
[INFO] running `Command { std: "docker" "start" "-a" "50cb4b0ea7efcf468effa6744a2a6277addf27cfb8dce263f7151d9be52c5f43", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.162
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.4.8
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]    Compiling quickcheck_macros v1.0.0
[INFO] [stderr]     Checking RustySKI v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::ast::SKI`
[INFO] [stdout]  --> src/lexer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ast::SKI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SKIErr`
[INFO] [stdout]  --> src/lexer.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::ast::{self, SKIErr};
[INFO] [stdout]   |                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::SKI`
[INFO] [stdout]  --> src/lexer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ast::SKI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SKIErr`
[INFO] [stdout]  --> src/lexer.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::ast::{self, SKIErr};
[INFO] [stdout]   |                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/ast.rs:84:30
[INFO] [stdout]    |
[INFO] [stdout] 84 |             SKI::Application(x) => write!(f, "{:?}({:?})", self.combinator, self.arg),
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustySKI` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `rusty_ski`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/ast.rs:84:30
[INFO] [stdout]    |
[INFO] [stdout] 84 |             SKI::Application(x) => write!(f, "{:?}({:?})", self.combinator, self.arg),
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on functions
[INFO] [stdout]  --> src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[macro_use]` can be applied to crates, extern crates, and modules
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on functions
[INFO] [stdout]  --> src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[macro_use]` can be applied to crates, extern crates, and modules
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.88s
[INFO] running `Command { std: "docker" "inspect" "50cb4b0ea7efcf468effa6744a2a6277addf27cfb8dce263f7151d9be52c5f43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50cb4b0ea7efcf468effa6744a2a6277addf27cfb8dce263f7151d9be52c5f43", kill_on_drop: false }`
[INFO] [stdout] 50cb4b0ea7efcf468effa6744a2a6277addf27cfb8dce263f7151d9be52c5f43
