[INFO] cloning repository https://github.com/equalsraf/git-springclean
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/equalsraf/git-springclean" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fequalsraf%2Fgit-springclean"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fequalsraf%2Fgit-springclean'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fcaed730df784ddf69d4260893abdcc6c3c51eb4
[INFO] checking equalsraf/git-springclean against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fequalsraf%2Fgit-springclean" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/equalsraf/git-springclean on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/equalsraf/git-springclean
[INFO] finished tweaking git repo https://github.com/equalsraf/git-springclean
[INFO] tweaked toml for git repo https://github.com/equalsraf/git-springclean written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/equalsraf/git-springclean already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 95569333aa208c9410909d007158e7835850fe7bd3463f2318d5a7f84826402a
[INFO] running `"docker" "start" "-a" "95569333aa208c9410909d007158e7835850fe7bd3463f2318d5a7f84826402a"`
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]     Checking git-springclean v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/checks.rs:99:30
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut local_branches = try!(git_branch_list(p, &[]));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/checks.rs:99:30
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut local_branches = try!(git_branch_list(p, &[]));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/checks.rs:100:27
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let remote_branches = try!(git_branch_list(p, &["-r"]));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/checks.rs:106:22
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let merged = try!(git_branch_list(p, &["--merged", &remote]));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/checks.rs:124:42
[INFO] [stderr]     |
[INFO] [stderr] 124 | pub const ALL_CHECKS: &'static [&'static Fn(&Path, &Args) -> CheckResult] = &[
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Path, &Args) -> CheckResult`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         f: &Fn(&Path, &Args) -> bool, args: &Args) 
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Path, &Args) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/checks.rs:100:27
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let remote_branches = try!(git_branch_list(p, &["-r"]));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/checks.rs:106:22
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let merged = try!(git_branch_list(p, &["--merged", &remote]));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/checks.rs:124:42
[INFO] [stderr]     |
[INFO] [stderr] 124 | pub const ALL_CHECKS: &'static [&'static Fn(&Path, &Args) -> CheckResult] = &[
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Path, &Args) -> CheckResult`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         f: &Fn(&Path, &Args) -> bool, args: &Args) 
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Path, &Args) -> bool`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `"docker" "inspect" "95569333aa208c9410909d007158e7835850fe7bd3463f2318d5a7f84826402a"`
[INFO] running `"docker" "rm" "-f" "95569333aa208c9410909d007158e7835850fe7bd3463f2318d5a7f84826402a"`
[INFO] [stdout] 95569333aa208c9410909d007158e7835850fe7bd3463f2318d5a7f84826402a