[INFO] cloning repository https://github.com/benneycao/xdiff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benneycao/xdiff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenneycao%2Fxdiff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenneycao%2Fxdiff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f71b19a84069c349e7f1a64f6b2ced575839810
[INFO] checking benneycao/xdiff against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenneycao%2Fxdiff" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benneycao/xdiff on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benneycao/xdiff
[INFO] finished tweaking git repo https://github.com/benneycao/xdiff
[INFO] tweaked toml for git repo https://github.com/benneycao/xdiff written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/benneycao/xdiff 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snapbox-macros v0.3.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1be05338c220edf7717caa95f22c68fb5b2d9afc8b615eb710b46072dd0d7576
[INFO] running `Command { std: "docker" "start" "-a" "1be05338c220edf7717caa95f22c68fb5b2d9afc8b615eb710b46072dd0d7576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1be05338c220edf7717caa95f22c68fb5b2d9afc8b615eb710b46072dd0d7576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be05338c220edf7717caa95f22c68fb5b2d9afc8b615eb710b46072dd0d7576", kill_on_drop: false }`
[INFO] [stdout] 1be05338c220edf7717caa95f22c68fb5b2d9afc8b615eb710b46072dd0d7576
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09026eb3b3862b6f21a66ad96b9e298a47959e2da341189c581e4e0039181dca
[INFO] running `Command { std: "docker" "start" "-a" "09026eb3b3862b6f21a66ad96b9e298a47959e2da341189c581e4e0039181dca", kill_on_drop: false }`
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[INFO] [stderr]     Checking xdiff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/config.rs:65:31
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn get_profile(&self, name: &str) -> Option<&DiffProfile> {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking trycmd v0.13.6
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> examples/config.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() -> Result<()>{
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/config.rs:65:31
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn get_profile(&self, name: &str) -> Option<&DiffProfile> {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 52.60s
[INFO] running `Command { std: "docker" "inspect" "09026eb3b3862b6f21a66ad96b9e298a47959e2da341189c581e4e0039181dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09026eb3b3862b6f21a66ad96b9e298a47959e2da341189c581e4e0039181dca", kill_on_drop: false }`
[INFO] [stdout] 09026eb3b3862b6f21a66ad96b9e298a47959e2da341189c581e4e0039181dca