[INFO] cloning repository https://github.com/volks73/groom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/volks73/groom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolks73%2Fgroom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolks73%2Fgroom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f495906323a9804f4d37e06abb43745c3b0547d3
[INFO] checking volks73/groom against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolks73%2Fgroom" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/volks73/groom on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/volks73/groom
[INFO] finished tweaking git repo https://github.com/volks73/groom
[INFO] tweaked toml for git repo https://github.com/volks73/groom written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/volks73/groom already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a72660feeb77c7852b60a68a04d9a0a094348dd5b91da23704add6765ecad63
[INFO] running `Command { std: "docker" "start" "-a" "3a72660feeb77c7852b60a68a04d9a0a094348dd5b91da23704add6765ecad63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a72660feeb77c7852b60a68a04d9a0a094348dd5b91da23704add6765ecad63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a72660feeb77c7852b60a68a04d9a0a094348dd5b91da23704add6765ecad63", kill_on_drop: false }`
[INFO] [stdout] 3a72660feeb77c7852b60a68a04d9a0a094348dd5b91da23704add6765ecad63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db881f23e87019cdcdb582d5de55aba1c91e6688e3d5898a26e70927cd754c67
[INFO] running `Command { std: "docker" "start" "-a" "db881f23e87019cdcdb582d5de55aba1c91e6688e3d5898a26e70927cd754c67", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]    Compiling Groom v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking clap v2.29.4
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking loggerv v0.6.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Checking serde_yaml v0.7.3
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/groom.rs:75:36
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let mut output_writer: Box<Write> = if let Some(output) = self.output {
[INFO] [stdout]    |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:147:32
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/groom.rs:75:36
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let mut output_writer: Box<Write> = if let Some(output) = self.output {
[INFO] [stdout]    |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:147:32
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:91:65
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let mut tag = format!("Error[{}] ({})", e.code(), e.description());
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:91:65
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let mut tag = format!("Error[{}] ({})", e.code(), e.description());
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.76s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db881f23e87019cdcdb582d5de55aba1c91e6688e3d5898a26e70927cd754c67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db881f23e87019cdcdb582d5de55aba1c91e6688e3d5898a26e70927cd754c67", kill_on_drop: false }`
[INFO] [stdout] db881f23e87019cdcdb582d5de55aba1c91e6688e3d5898a26e70927cd754c67