[INFO] cloning repository https://github.com/gabe-lee/cargit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gabe-lee/cargit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgabe-lee%2Fcargit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgabe-lee%2Fcargit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ef0bb6ad0d864518c2c8decbde9fa56e904e670
[INFO] checking gabe-lee/cargit against try#9961e55b3687a6d0b2bab4af0e5e81494b09be81 for pr-139087-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgabe-lee%2Fcargit" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gabe-lee/cargit
[INFO] finished tweaking git repo https://github.com/gabe-lee/cargit
[INFO] tweaked toml for git repo https://github.com/gabe-lee/cargit written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gabe-lee/cargit on toolchain 9961e55b3687a6d0b2bab4af0e5e81494b09be81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gabe-lee/cargit 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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "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 gmec v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b874d81e02e0ea91005a0cfd23324719743dc6ee06ece8447c7d3a67d574767
[INFO] running `Command { std: "docker" "start" "-a" "7b874d81e02e0ea91005a0cfd23324719743dc6ee06ece8447c7d3a67d574767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b874d81e02e0ea91005a0cfd23324719743dc6ee06ece8447c7d3a67d574767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b874d81e02e0ea91005a0cfd23324719743dc6ee06ece8447c7d3a67d574767", kill_on_drop: false }`
[INFO] [stdout] 7b874d81e02e0ea91005a0cfd23324719743dc6ee06ece8447c7d3a67d574767
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23d8d9b14f0aa9cb83b186b0c8e9d09ce1d1fdb65b43ea9220e15e4f45f8d779
[INFO] running `Command { std: "docker" "start" "-a" "23d8d9b14f0aa9cb83b186b0c8e9d09ce1d1fdb65b43ea9220e15e4f45f8d779", kill_on_drop: false }`
[INFO] [stderr]     Checking gmec v0.0.3
[INFO] [stderr]     Checking cargit v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `branch`
[INFO] [stdout]    --> src/internal.rs:110:65
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub(crate) fn get_reverse_chron_iterator_over_commits_in_branch(branch: &str) -> Result<Commiterator, ErrorChain> {
[INFO] [stdout]     |                                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_branch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_reverse_chron_iterator_over_commits_in_current_branch` is never used
[INFO] [stdout]    --> src/internal.rs:105:15
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub(crate) fn get_reverse_chron_iterator_over_commits_in_current_branch() -> Result<Commiterator, ErrorChain> {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_all_local_branches_in_repo` is never used
[INFO] [stdout]    --> src/internal.rs:169:15
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub(crate) fn get_all_local_branches_in_repo() -> Result<Vec<String>, ErrorChain> {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `git_merge` is never used
[INFO] [stdout]    --> src/internal.rs:207:15
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub(crate) fn git_merge(from_branch: &String, into_branch: &String) -> Result<(), ErrorChain> {
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `git_delete_branch` is never used
[INFO] [stdout]    --> src/internal.rs:212:15
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub(crate) fn git_delete_branch(branch: &String) -> Result<(), ErrorChain> {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `branch`
[INFO] [stdout]    --> src/internal.rs:110:65
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub(crate) fn get_reverse_chron_iterator_over_commits_in_branch(branch: &str) -> Result<Commiterator, ErrorChain> {
[INFO] [stdout]     |                                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_branch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `git_merge` is never used
[INFO] [stdout]    --> src/internal.rs:207:15
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub(crate) fn git_merge(from_branch: &String, into_branch: &String) -> Result<(), ErrorChain> {
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `git_delete_branch` is never used
[INFO] [stdout]    --> src/internal.rs:212:15
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub(crate) fn git_delete_branch(branch: &String) -> Result<(), ErrorChain> {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "23d8d9b14f0aa9cb83b186b0c8e9d09ce1d1fdb65b43ea9220e15e4f45f8d779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23d8d9b14f0aa9cb83b186b0c8e9d09ce1d1fdb65b43ea9220e15e4f45f8d779", kill_on_drop: false }`
[INFO] [stdout] 23d8d9b14f0aa9cb83b186b0c8e9d09ce1d1fdb65b43ea9220e15e4f45f8d779