[INFO] cloning repository https://github.com/brudnevskij/froggle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brudnevskij/froggle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrudnevskij%2Ffroggle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrudnevskij%2Ffroggle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8a021256ca5758e696b0f855bb5ce1ca0537d2e
[INFO] checking brudnevskij/froggle against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrudnevskij%2Ffroggle" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/brudnevskij/froggle
[INFO] finished tweaking git repo https://github.com/brudnevskij/froggle
[INFO] tweaked toml for git repo https://github.com/brudnevskij/froggle written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/brudnevskij/froggle on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/brudnevskij/froggle 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3778f1cd1b0d9e58ed8914509498ed7f018c01ea4a6ed13666fb97803ef0214
[INFO] running `Command { std: "docker" "start" "-a" "a3778f1cd1b0d9e58ed8914509498ed7f018c01ea4a6ed13666fb97803ef0214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3778f1cd1b0d9e58ed8914509498ed7f018c01ea4a6ed13666fb97803ef0214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3778f1cd1b0d9e58ed8914509498ed7f018c01ea4a6ed13666fb97803ef0214", kill_on_drop: false }`
[INFO] [stdout] a3778f1cd1b0d9e58ed8914509498ed7f018c01ea4a6ed13666fb97803ef0214
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00ef82005543fd99fb1ecf8b1f4aa5ef26fe7e9f005af4bf1b1bb8303c47f7ef
[INFO] running `Command { std: "docker" "start" "-a" "00ef82005543fd99fb1ecf8b1f4aa5ef26fe7e9f005af4bf1b1bb8303c47f7ef", kill_on_drop: false }`
[INFO] [stderr]     Checking froggle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Variable`
[INFO] [stdout]    --> src/typechecker.rs:206:45
[INFO] [stdout]     |
[INFO] [stdout] 206 |     use crate::parser::Expression::{Number, Variable};
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/typechecker.rs:162:33
[INFO] [stdout]     |
[INFO] [stdout] 162 |             params.iter().map(|(name, t)| t.clone()).collect(),
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `type_envs` is never read
[INFO] [stdout]    --> src/parser.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 116 | pub struct Parser {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 117 |     tokens: Vec<Token>,
[INFO] [stdout] 118 |     type_envs: Vec<HashMap<String, Type>>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `enter_scope` and `exit_scope` are never used
[INFO] [stdout]    --> src/parser.rs:146:8
[INFO] [stdout]     |
[INFO] [stdout] 122 | impl Parser {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 146 |     fn enter_scope(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     fn exit_scope(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/typechecker.rs:162:33
[INFO] [stdout]     |
[INFO] [stdout] 162 |             params.iter().map(|(name, t)| t.clone()).collect(),
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `type_envs` is never read
[INFO] [stdout]    --> src/parser.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 116 | pub struct Parser {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 117 |     tokens: Vec<Token>,
[INFO] [stdout] 118 |     type_envs: Vec<HashMap<String, Type>>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `enter_scope` and `exit_scope` are never used
[INFO] [stdout]    --> src/parser.rs:146:8
[INFO] [stdout]     |
[INFO] [stdout] 122 | impl Parser {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 146 |     fn enter_scope(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     fn exit_scope(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "00ef82005543fd99fb1ecf8b1f4aa5ef26fe7e9f005af4bf1b1bb8303c47f7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00ef82005543fd99fb1ecf8b1f4aa5ef26fe7e9f005af4bf1b1bb8303c47f7ef", kill_on_drop: false }`
[INFO] [stdout] 00ef82005543fd99fb1ecf8b1f4aa5ef26fe7e9f005af4bf1b1bb8303c47f7ef