[INFO] cloning repository https://github.com/jfontan/rust-ls
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jfontan/rust-ls" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjfontan%2Frust-ls", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjfontan%2Frust-ls'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30967b871d045e3740e7b40318f319fd2822662a
[INFO] checking jfontan/rust-ls against try#18c1d185ac7a6a3bf399296b35e4b2736809a756 for pr-146972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjfontan%2Frust-ls" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jfontan/rust-ls
[INFO] finished tweaking git repo https://github.com/jfontan/rust-ls
[INFO] tweaked toml for git repo https://github.com/jfontan/rust-ls written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jfontan/rust-ls on toolchain 18c1d185ac7a6a3bf399296b35e4b2736809a756
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jfontan/rust-ls 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" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.118
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eea467f993b61e9836d9d86a13cf0cad3d2f9f8b183fc0ee6722d7f3780bb50f
[INFO] running `Command { std: "docker" "start" "-a" "eea467f993b61e9836d9d86a13cf0cad3d2f9f8b183fc0ee6722d7f3780bb50f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eea467f993b61e9836d9d86a13cf0cad3d2f9f8b183fc0ee6722d7f3780bb50f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eea467f993b61e9836d9d86a13cf0cad3d2f9f8b183fc0ee6722d7f3780bb50f", kill_on_drop: false }`
[INFO] [stdout] eea467f993b61e9836d9d86a13cf0cad3d2f9f8b183fc0ee6722d7f3780bb50f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88d3a1ac87922b7be55244d0fb2fe18793ce3bc13f8a5f7702a802f00a7945bc
[INFO] running `Command { std: "docker" "start" "-a" "88d3a1ac87922b7be55244d0fb2fe18793ce3bc13f8a5f7702a802f00a7945bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking ls v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DateTime` and `Local`
[INFO] [stdout]  --> src/main.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | use chrono::{DateTime, Local};
[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 imports: `DateTime` and `Local`
[INFO] [stdout]  --> src/main.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | use chrono::{DateTime, Local};
[INFO] [stdout]   |              ^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.98s
[INFO] running `Command { std: "docker" "inspect" "88d3a1ac87922b7be55244d0fb2fe18793ce3bc13f8a5f7702a802f00a7945bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88d3a1ac87922b7be55244d0fb2fe18793ce3bc13f8a5f7702a802f00a7945bc", kill_on_drop: false }`
[INFO] [stdout] 88d3a1ac87922b7be55244d0fb2fe18793ce3bc13f8a5f7702a802f00a7945bc