[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#9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840 for pr-149518
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrudnevskij%2Ffroggle" "/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/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-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/brudnevskij/froggle on toolchain 9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "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" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking brudnevskij/froggle against try#9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840 for pr-149518
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrudnevskij%2Ffroggle" "/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/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-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/brudnevskij/froggle on toolchain 9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "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" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38bf6f8e9ca6f9df6eba7bedaff3c22af59b63452d77a355e8e63434c2f6cec0
[INFO] running `Command { std: "docker" "start" "-a" "38bf6f8e9ca6f9df6eba7bedaff3c22af59b63452d77a355e8e63434c2f6cec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38bf6f8e9ca6f9df6eba7bedaff3c22af59b63452d77a355e8e63434c2f6cec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38bf6f8e9ca6f9df6eba7bedaff3c22af59b63452d77a355e8e63434c2f6cec0", kill_on_drop: false }`
[INFO] [stdout] 38bf6f8e9ca6f9df6eba7bedaff3c22af59b63452d77a355e8e63434c2f6cec0
[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" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07a21ecb4b0734f27ced44386aea6c14d91e2136b5a87bc85b6df482c671f2cc
[INFO] running `Command { std: "docker" "start" "-a" "07a21ecb4b0734f27ced44386aea6c14d91e2136b5a87bc85b6df482c671f2cc", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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 0.14s
[INFO] running `Command { std: "docker" "inspect" "07a21ecb4b0734f27ced44386aea6c14d91e2136b5a87bc85b6df482c671f2cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a21ecb4b0734f27ced44386aea6c14d91e2136b5a87bc85b6df482c671f2cc", kill_on_drop: false }`
[INFO] [stdout] 07a21ecb4b0734f27ced44386aea6c14d91e2136b5a87bc85b6df482c671f2cc