[INFO] crate pact_matching 0.5.0 is already in cache
[INFO] extracting crate pact_matching 0.5.0 into work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/pact_matching/0.5.0
[INFO] extracting crate pact_matching 0.5.0 into work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/pact_matching/0.5.0
[INFO] validating manifest of pact_matching-0.5.0 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pact_matching-0.5.0 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pact_matching-0.5.0
[INFO] finished frobbing pact_matching-0.5.0
[INFO] frobbed toml for pact_matching-0.5.0 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/pact_matching/0.5.0/Cargo.toml
[INFO] started frobbing pact_matching-0.5.0
[INFO] finished frobbing pact_matching-0.5.0
[INFO] frobbed toml for pact_matching-0.5.0 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/pact_matching/0.5.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking pact_matching-0.5.0 against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-0/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/pact_matching/0.5.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 87ccfa4142eb99d4fb2e50f10bfbe4c7d6a69b4cc00ab8e01eb2f1330cf06ded
[INFO] running `"docker" "start" "-a" "87ccfa4142eb99d4fb2e50f10bfbe4c7d6a69b4cc00ab8e01eb2f1330cf06ded"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Checking expectest v0.9.2
[INFO] [stderr]     Checking pact_matching v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/models/generators.rs:353:25
[INFO] [stderr]     |
[INFO] [stderr] 353 |                     let mut node = tree.new_node(name.clone());
[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/models/generators.rs:366:23
[INFO] [stderr]     |
[INFO] [stderr] 366 |                   let mut node = tree.new_node(format!("{}", index));
[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/models/generators.rs:380:25
[INFO] [stderr]     |
[INFO] [stderr] 380 |                     let mut node = tree.new_node(key.clone());
[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/models/generators.rs:395:25
[INFO] [stderr]     |
[INFO] [stderr] 395 |                     let mut node = tree.new_node(format!("{}", index));
[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/models/generators.rs:425:13
[INFO] [stderr]     |
[INFO] [stderr] 425 |         let mut root = tree.new_node("".into());
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for macro
[INFO] [stderr]    --> src/models/matchingrules.rs:593:1
[INFO] [stderr]     |
[INFO] [stderr] 593 | macro_rules! matchingrules {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 | #![warn(missing_docs)]
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for macro
[INFO] [stderr]    --> src/models/generators.rs:660:1
[INFO] [stderr]     |
[INFO] [stderr] 660 | macro_rules! generators {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/models/generators.rs:353:25
[INFO] [stderr]     |
[INFO] [stderr] 353 |                     let mut node = tree.new_node(name.clone());
[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/models/generators.rs:366:23
[INFO] [stderr]     |
[INFO] [stderr] 366 |                   let mut node = tree.new_node(format!("{}", index));
[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/models/generators.rs:380:25
[INFO] [stderr]     |
[INFO] [stderr] 380 |                     let mut node = tree.new_node(key.clone());
[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/models/generators.rs:395:25
[INFO] [stderr]     |
[INFO] [stderr] 395 |                     let mut node = tree.new_node(format!("{}", index));
[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/models/generators.rs:425:13
[INFO] [stderr]     |
[INFO] [stderr] 425 |         let mut root = tree.new_node("".into());
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for macro
[INFO] [stderr]    --> src/models/matchingrules.rs:593:1
[INFO] [stderr]     |
[INFO] [stderr] 593 | macro_rules! matchingrules {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 | #![warn(missing_docs)]
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for macro
[INFO] [stderr]    --> src/models/generators.rs:660:1
[INFO] [stderr]     |
[INFO] [stderr] 660 | macro_rules! generators {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.56s
[INFO] running `"docker" "inspect" "87ccfa4142eb99d4fb2e50f10bfbe4c7d6a69b4cc00ab8e01eb2f1330cf06ded"`
[INFO] running `"docker" "rm" "-f" "87ccfa4142eb99d4fb2e50f10bfbe4c7d6a69b4cc00ab8e01eb2f1330cf06ded"`
[INFO] [stdout] 87ccfa4142eb99d4fb2e50f10bfbe4c7d6a69b4cc00ab8e01eb2f1330cf06ded