[INFO] updating cached repository nelhage/iron-gollum
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nelhage/iron-gollum
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nelhage/iron-gollum" "work/ex/beta-1.37-6/sources/1.36.0/gh/nelhage/iron-gollum"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nelhage/iron-gollum'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nelhage/iron-gollum" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nelhage/iron-gollum"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nelhage/iron-gollum'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 504c88b3d928478fce2c98b6a54d5b85e728e858
[INFO] sha for GitHub repo nelhage/iron-gollum: 504c88b3d928478fce2c98b6a54d5b85e728e858
[INFO] validating manifest of nelhage/iron-gollum on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nelhage/iron-gollum on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nelhage/iron-gollum
[INFO] finished frobbing nelhage/iron-gollum
[INFO] frobbed toml for nelhage/iron-gollum written to work/ex/beta-1.37-6/sources/1.36.0/gh/nelhage/iron-gollum/Cargo.toml
[INFO] started frobbing nelhage/iron-gollum
[INFO] finished frobbing nelhage/iron-gollum
[INFO] frobbed toml for nelhage/iron-gollum written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nelhage/iron-gollum/Cargo.toml
[INFO] crate nelhage/iron-gollum already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nelhage/iron-gollum against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nelhage/iron-gollum:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 04eedb9eca78f0acf6776ef3e90d5287ad6a86c729253ef4b176ffeacb135baa
[INFO] running `"docker" "start" "-a" "04eedb9eca78f0acf6776ef3e90d5287ad6a86c729253ef4b176ffeacb135baa"`
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling atty v0.2.8
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling pest_derive v1.0.7
[INFO] [stderr]    Compiling iron-golem v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:44:17
[INFO] [stderr]    |
[INFO] [stderr] 44 |             let mut inner = pair.into_inner();
[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/parser.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |             let mut expr = *build(path, inner.next().unwrap());
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.14s
[INFO] running `"docker" "inspect" "04eedb9eca78f0acf6776ef3e90d5287ad6a86c729253ef4b176ffeacb135baa"`
[INFO] running `"docker" "rm" "-f" "04eedb9eca78f0acf6776ef3e90d5287ad6a86c729253ef4b176ffeacb135baa"`
[INFO] [stdout] 04eedb9eca78f0acf6776ef3e90d5287ad6a86c729253ef4b176ffeacb135baa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nelhage/iron-gollum:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 46d5c59499f06b76594306319d66384ce7f84f23fe7ae3c96bbb5326c4249cc9
[INFO] running `"docker" "start" "-a" "46d5c59499f06b76594306319d66384ce7f84f23fe7ae3c96bbb5326c4249cc9"`
[INFO] [stderr]    Compiling iron-golem v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:44:17
[INFO] [stderr]    |
[INFO] [stderr] 44 |             let mut inner = pair.into_inner();
[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/parser.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |             let mut expr = *build(path, inner.next().unwrap());
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.38s
[INFO] running `"docker" "inspect" "46d5c59499f06b76594306319d66384ce7f84f23fe7ae3c96bbb5326c4249cc9"`
[INFO] running `"docker" "rm" "-f" "46d5c59499f06b76594306319d66384ce7f84f23fe7ae3c96bbb5326c4249cc9"`
[INFO] [stdout] 46d5c59499f06b76594306319d66384ce7f84f23fe7ae3c96bbb5326c4249cc9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nelhage/iron-gollum:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] c37dd30b4c442fa091e2b1cdae2f8c946ad01e4df3ab4720e38c201aa278c6c7
[INFO] running `"docker" "start" "-a" "c37dd30b4c442fa091e2b1cdae2f8c946ad01e4df3ab4720e38c201aa278c6c7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/iron_golem-8d8dfd57fbeddd89
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test parser::tests::test_bad ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/iron_golem-63e663f49b0bcc38
[INFO] [stdout] test parser::tests::test_parser ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test_corpus-66d0c924ba6dd3fe
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_typecheck ... ok
[INFO] [stdout] test test_bad ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iron_golem
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c37dd30b4c442fa091e2b1cdae2f8c946ad01e4df3ab4720e38c201aa278c6c7"`
[INFO] running `"docker" "rm" "-f" "c37dd30b4c442fa091e2b1cdae2f8c946ad01e4df3ab4720e38c201aa278c6c7"`
[INFO] [stdout] c37dd30b4c442fa091e2b1cdae2f8c946ad01e4df3ab4720e38c201aa278c6c7