[INFO] cloning repository https://github.com/mesuutt/learn_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mesuutt/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmesuutt%2Flearn_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmesuutt%2Flearn_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28f85a7157a3e039f8da8cadf7108d68a8c19b9a
[INFO] checking mesuutt/learn_rust against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmesuutt%2Flearn_rust" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mesuutt/learn_rust on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mesuutt/learn_rust
[INFO] finished tweaking git repo https://github.com/mesuutt/learn_rust
[INFO] tweaked toml for git repo https://github.com/mesuutt/learn_rust written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/mesuutt/learn_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4326df42342059eb33edc4a023230977ae6c5ba96c3ad5193ebedff350a37ba
[INFO] running `Command { std: "docker" "start" "-a" "e4326df42342059eb33edc4a023230977ae6c5ba96c3ad5193ebedff350a37ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4326df42342059eb33edc4a023230977ae6c5ba96c3ad5193ebedff350a37ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4326df42342059eb33edc4a023230977ae6c5ba96c3ad5193ebedff350a37ba", kill_on_drop: false }`
[INFO] [stdout] e4326df42342059eb33edc4a023230977ae6c5ba96c3ad5193ebedff350a37ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c652dddb4b68be072fed03eff4a03d5108aa961d564b07db097f8436eedb78f
[INFO] running `Command { std: "docker" "start" "-a" "8c652dddb4b68be072fed03eff4a03d5108aa961d564b07db097f8436eedb78f", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.24
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[INFO] [stdout] warning: unused import: `UserClientImpl`
[INFO] [stdout]  --> src/traits/src/user_service.rs:2:64
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::user_client::{UserClient, ClientResp, ClientResult, UserClientImpl};
[INFO] [stdout]   |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/traits/src/user_service.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UserClientImpl`
[INFO] [stdout]  --> src/traits/src/user_service.rs:2:64
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::user_client::{UserClient, ClientResp, ClientResult, UserClientImpl};
[INFO] [stdout]   |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/traits/src/user_service.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `user_service::UserService`
[INFO] [stdout]  --> src/traits/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use user_service::UserService;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `user_service::UserService`
[INFO] [stdout]  --> src/traits/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use user_service::UserService;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[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 38.34s
[INFO] running `Command { std: "docker" "inspect" "8c652dddb4b68be072fed03eff4a03d5108aa961d564b07db097f8436eedb78f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c652dddb4b68be072fed03eff4a03d5108aa961d564b07db097f8436eedb78f", kill_on_drop: false }`
[INFO] [stdout] 8c652dddb4b68be072fed03eff4a03d5108aa961d564b07db097f8436eedb78f