[INFO] updating cached repository https://github.com/outfrost/shovel
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e6adf99b034552c87ecea13a5be6bfbde3b4cbc0
[INFO] checking outfrost/shovel against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foutfrost%2Fshovel" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/outfrost/shovel on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/outfrost/shovel
[INFO] finished tweaking git repo https://github.com/outfrost/shovel
[INFO] tweaked toml for git repo https://github.com/outfrost/shovel written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/outfrost/shovel already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3c1901dbd8074671056a133d3b94177c7e87bcae58f578db35a4cb5e8f39e45b
[INFO] running `"docker" "start" "-a" "3c1901dbd8074671056a133d3b94177c7e87bcae58f578db35a4cb5e8f39e45b"`
[INFO] [stderr]     Checking shovel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `workspace`
[INFO] [stderr]   --> src/frob.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn frobnicate_elsewhere(workspace: &str, targets: Vec<&str>) {
[INFO] [stderr]    |                             ^^^^^^^^^ help: consider prefixing with an underscore: `_workspace`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `targets`
[INFO] [stderr]   --> src/frob.rs:33:46
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn frobnicate_elsewhere(workspace: &str, targets: Vec<&str>) {
[INFO] [stderr]    |                                              ^^^^^^^ help: consider prefixing with an underscore: `_targets`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `host`
[INFO] [stderr]   --> src/frob.rs:36:28
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn frobnicate_remotely(host: &str, workspace: &str, targets: Vec<&str>) {
[INFO] [stderr]    |                            ^^^^ help: consider prefixing with an underscore: `_host`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `workspace`
[INFO] [stderr]   --> src/frob.rs:36:40
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn frobnicate_remotely(host: &str, workspace: &str, targets: Vec<&str>) {
[INFO] [stderr]    |                                        ^^^^^^^^^ help: consider prefixing with an underscore: `_workspace`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `targets`
[INFO] [stderr]   --> src/frob.rs:36:57
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn frobnicate_remotely(host: &str, workspace: &str, targets: Vec<&str>) {
[INFO] [stderr]    |                                                         ^^^^^^^ help: consider prefixing with an underscore: `_targets`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/frob.rs:25:34
[INFO] [stderr]    |
[INFO] [stderr] 25 | ...                   writeln!(stdout_log, "{}", s);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/frob.rs:29:34
[INFO] [stderr]    |
[INFO] [stderr] 29 | ...                   writeln!(stderr_log, "{}", s);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `workspace`
[INFO] [stderr]   --> src/frob.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn frobnicate_elsewhere(workspace: &str, targets: Vec<&str>) {
[INFO] [stderr]    |                             ^^^^^^^^^ help: consider prefixing with an underscore: `_workspace`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `targets`
[INFO] [stderr]   --> src/frob.rs:33:46
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn frobnicate_elsewhere(workspace: &str, targets: Vec<&str>) {
[INFO] [stderr]    |                                              ^^^^^^^ help: consider prefixing with an underscore: `_targets`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `host`
[INFO] [stderr]   --> src/frob.rs:36:28
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn frobnicate_remotely(host: &str, workspace: &str, targets: Vec<&str>) {
[INFO] [stderr]    |                            ^^^^ help: consider prefixing with an underscore: `_host`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `workspace`
[INFO] [stderr]   --> src/frob.rs:36:40
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn frobnicate_remotely(host: &str, workspace: &str, targets: Vec<&str>) {
[INFO] [stderr]    |                                        ^^^^^^^^^ help: consider prefixing with an underscore: `_workspace`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `targets`
[INFO] [stderr]   --> src/frob.rs:36:57
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn frobnicate_remotely(host: &str, workspace: &str, targets: Vec<&str>) {
[INFO] [stderr]    |                                                         ^^^^^^^ help: consider prefixing with an underscore: `_targets`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/frob.rs:25:34
[INFO] [stderr]    |
[INFO] [stderr] 25 | ...                   writeln!(stdout_log, "{}", s);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/frob.rs:29:34
[INFO] [stderr]    |
[INFO] [stderr] 29 | ...                   writeln!(stderr_log, "{}", s);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `"docker" "inspect" "3c1901dbd8074671056a133d3b94177c7e87bcae58f578db35a4cb5e8f39e45b"`
[INFO] running `"docker" "rm" "-f" "3c1901dbd8074671056a133d3b94177c7e87bcae58f578db35a4cb5e8f39e45b"`
[INFO] [stdout] 3c1901dbd8074671056a133d3b94177c7e87bcae58f578db35a4cb5e8f39e45b