[INFO] fetching crate libpijul-compat 0.10.2...
[INFO] checking libpijul-compat-0.10.2 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate libpijul-compat 0.10.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate libpijul-compat 0.10.2 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate libpijul-compat 0.10.2
[INFO] finished tweaking crates.io crate libpijul-compat 0.10.2
[INFO] tweaked toml for crates.io crate libpijul-compat 0.10.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thrussh-keys v0.9.5
[INFO] [stderr]   Downloaded sanakirja v0.8.22
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] 2551a48a9c2f024adc39eb8d39ff963df3f2e62679168aa46f23b313b744f596
[INFO] running `"docker" "start" "-a" "2551a48a9c2f024adc39eb8d39ff963df3f2e62679168aa46f23b313b744f596"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking bs58 v0.2.5
[INFO] [stderr]    Compiling thrussh-libsodium v0.1.4
[INFO] [stderr]     Checking base64 v0.8.0
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking cryptovec v0.4.6
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking yasna v0.1.3
[INFO] [stderr]     Checking sanakirja v0.8.22
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking thrussh-keys v0.9.5
[INFO] [stderr]     Checking ignore v0.4.10
[INFO] [stderr]     Checking libpijul-compat v0.10.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:380:20
[INFO] [stderr]     |
[INFO] [stderr] 380 |         let file = try!(File::open(&patches_dir));
[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/lib.rs:476:16
[INFO] [stderr]     |
[INFO] [stderr] 476 |     let repo = try!(Repository::open(pristine_dir, Some(size_increase as u64)));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:477:19
[INFO] [stderr]     |
[INFO] [stderr] 477 |     let mut txn = try!(repo.mut_txn_begin(rand::thread_rng()));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:502:16
[INFO] [stderr]     |
[INFO] [stderr] 502 |     let repo = try!(Repository::open(repo_dir, Some(increase)));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:504:19
[INFO] [stderr]     |
[INFO] [stderr] 504 |     let mut txn = try!(repo.mut_txn_begin(rand::thread_rng()));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:520:5
[INFO] [stderr]     |
[INFO] [stderr] 520 |     try!(txn.commit_branch(branch));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:521:5
[INFO] [stderr]     |
[INFO] [stderr] 521 |     try!(txn.commit());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/patch.rs:514:36
[INFO] [stderr]     |
[INFO] [stderr] 514 | pub fn read_signature_file(r: &mut Read) -> Result<SignatureFile> {
[INFO] [stderr]     |                                    ^^^^ help: use `dyn`: `dyn Read`
[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/patch.rs:528:48
[INFO] [stderr]     |
[INFO] [stderr] 528 |     pub fn write_signature_file(&self, w: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/patch.rs:549:29
[INFO] [stderr]     |
[INFO] [stderr] 549 | pub fn read_changes(r: &mut Read) -> Result<HashMap<Hash, ApplyTimestamp>> {
[INFO] [stderr]     |                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:380:20
[INFO] [stderr]     |
[INFO] [stderr] 380 |         let file = try!(File::open(&patches_dir));
[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/lib.rs:476:16
[INFO] [stderr]     |
[INFO] [stderr] 476 |     let repo = try!(Repository::open(pristine_dir, Some(size_increase as u64)));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:477:19
[INFO] [stderr]     |
[INFO] [stderr] 477 |     let mut txn = try!(repo.mut_txn_begin(rand::thread_rng()));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:502:16
[INFO] [stderr]     |
[INFO] [stderr] 502 |     let repo = try!(Repository::open(repo_dir, Some(increase)));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:504:19
[INFO] [stderr]     |
[INFO] [stderr] 504 |     let mut txn = try!(repo.mut_txn_begin(rand::thread_rng()));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:520:5
[INFO] [stderr]     |
[INFO] [stderr] 520 |     try!(txn.commit_branch(branch));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:521:5
[INFO] [stderr]     |
[INFO] [stderr] 521 |     try!(txn.commit());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/patch.rs:514:36
[INFO] [stderr]     |
[INFO] [stderr] 514 | pub fn read_signature_file(r: &mut Read) -> Result<SignatureFile> {
[INFO] [stderr]     |                                    ^^^^ help: use `dyn`: `dyn Read`
[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/patch.rs:528:48
[INFO] [stderr]     |
[INFO] [stderr] 528 |     pub fn write_signature_file(&self, w: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/patch.rs:549:29
[INFO] [stderr]     |
[INFO] [stderr] 549 | pub fn read_changes(r: &mut Read) -> Result<HashMap<Hash, ApplyTimestamp>> {
[INFO] [stderr]     |                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'bs58::decode::DecodeError': Use `bs58::decode::Error` instead
[INFO] [stderr]   --> src/lib.rs:70:22
[INFO] [stderr]    |
[INFO] [stderr] 70 |         Base58Decode(bs58::decode::DecodeError);
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/backend/inode.rs:65:28
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let mut i: Inode = std::mem::uninitialized();
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/backend/key.rs:166:21
[INFO] [stderr]     |
[INFO] [stderr] 166 |         let mut k = std::mem::uninitialized();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/backend/patch_id.rs:75:37
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let mut patch_id: PatchId = std::mem::uninitialized();
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'bs58::decode::DecodeError': Use `bs58::decode::Error` instead
[INFO] [stderr]   --> src/lib.rs:70:22
[INFO] [stderr]    |
[INFO] [stderr] 70 |         Base58Decode(bs58::decode::DecodeError);
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/backend/inode.rs:65:28
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let mut i: Inode = std::mem::uninitialized();
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/backend/key.rs:166:21
[INFO] [stderr]     |
[INFO] [stderr] 166 |         let mut k = std::mem::uninitialized();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/backend/patch_id.rs:75:37
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let mut patch_id: PatchId = std::mem::uninitialized();
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::Rng::gen_ascii_chars': use sample_iter(&Alphanumeric) instead
[INFO] [stderr]    --> src/lib.rs:154:34
[INFO] [stderr]     |
[INFO] [stderr] 154 |             branch_id.extend(rng.gen_ascii_chars().take(ID_LENGTH));
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::Rng::gen_ascii_chars': use sample_iter(&Alphanumeric) instead
[INFO] [stderr]    --> src/lib.rs:154:34
[INFO] [stderr]     |
[INFO] [stderr] 154 |             branch_id.extend(rng.gen_ascii_chars().take(ID_LENGTH));
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'bitflags::core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/backend/key.rs:75:23
[INFO] [stderr]    |
[INFO] [stderr] 75 |         w.write_str(h.trim_right_matches('0'))
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'bitflags::core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/backend/key.rs:80:23
[INFO] [stderr]    |
[INFO] [stderr] 80 |         w.write_str(h.trim_right_matches('0'))
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::Rng::gen_ascii_chars': use sample_iter(&Alphanumeric) instead
[INFO] [stderr]    --> src/fs_representation.rs:112:18
[INFO] [stderr]     |
[INFO] [stderr] 112 |     x.extend(rng.gen_ascii_chars().take(ID_LENGTH));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'bitflags::core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/backend/key.rs:75:23
[INFO] [stderr]    |
[INFO] [stderr] 75 |         w.write_str(h.trim_right_matches('0'))
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'bitflags::core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/backend/key.rs:80:23
[INFO] [stderr]    |
[INFO] [stderr] 80 |         w.write_str(h.trim_right_matches('0'))
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::Rng::gen_ascii_chars': use sample_iter(&Alphanumeric) instead
[INFO] [stderr]    --> src/fs_representation.rs:112:18
[INFO] [stderr]     |
[INFO] [stderr] 112 |     x.extend(rng.gen_ascii_chars().take(ID_LENGTH));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lib.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | / error_chain! {
[INFO] [stderr] 61 | |     foreign_links {
[INFO] [stderr] 62 | |         IO(std::io::Error);
[INFO] [stderr] 63 | |         Sanakirja(sanakirja::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |     }
[INFO] [stderr] 98 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[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: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lib.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | / error_chain! {
[INFO] [stderr] 61 | |     foreign_links {
[INFO] [stderr] 62 | |         IO(std::io::Error);
[INFO] [stderr] 63 | |         Sanakirja(sanakirja::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |     }
[INFO] [stderr] 98 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/file_operations.rs:416:17
[INFO] [stderr]     |
[INFO] [stderr] 416 |             let mut is_first = true;
[INFO] [stderr]     |                 ----^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/file_operations.rs:416:17
[INFO] [stderr]     |
[INFO] [stderr] 416 |             let mut is_first = true;
[INFO] [stderr]     |                 ----^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/optimal_diff/add.rs:131:21
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 let mut descendant = *diff.conflicts_descendants.get(&ancestor).unwrap();
[INFO] [stderr]     |                     ----^^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/apply/apply.rs:243:17
[INFO] [stderr]     |
[INFO] [stderr] 243 |             let mut is_zombie_marker = to_edge.introduced_by != patch_id
[INFO] [stderr]     |                 ----^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/optimal_diff/add.rs:131:21
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 let mut descendant = *diff.conflicts_descendants.get(&ancestor).unwrap();
[INFO] [stderr]     |                     ----^^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/output.rs:282:25
[INFO] [stderr]     |
[INFO] [stderr] 282 |                     let mut name = if b_len > 1
[INFO] [stderr]     |                         ----^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/apply/apply.rs:243:17
[INFO] [stderr]     |
[INFO] [stderr] 243 |             let mut is_zombie_marker = to_edge.introduced_by != patch_id
[INFO] [stderr]     |                 ----^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/unrecord/mod.rs:182:18
[INFO] [stderr]     |
[INFO] [stderr] 182 |             for (mut k, mut v) in files.drain(..) {
[INFO] [stderr]     |                  ----^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/unrecord/edges.rs:298:22
[INFO] [stderr]     |
[INFO] [stderr] 298 |                 for (mut k, mut v) in files.drain(..) {
[INFO] [stderr]     |                      ----^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/output.rs:282:25
[INFO] [stderr]     |
[INFO] [stderr] 282 |                     let mut name = if b_len > 1
[INFO] [stderr]     |                         ----^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/unrecord/mod.rs:182:18
[INFO] [stderr]     |
[INFO] [stderr] 182 |             for (mut k, mut v) in files.drain(..) {
[INFO] [stderr]     |                  ----^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/unrecord/edges.rs:298:22
[INFO] [stderr]     |
[INFO] [stderr] 298 |                 for (mut k, mut v) in files.drain(..) {
[INFO] [stderr]     |                      ----^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.67s
[INFO] running `"docker" "inspect" "2551a48a9c2f024adc39eb8d39ff963df3f2e62679168aa46f23b313b744f596"`
[INFO] running `"docker" "rm" "-f" "2551a48a9c2f024adc39eb8d39ff963df3f2e62679168aa46f23b313b744f596"`
[INFO] [stdout] 2551a48a9c2f024adc39eb8d39ff963df3f2e62679168aa46f23b313b744f596