[INFO] updating cached repository muktakosh/unicorn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/muktakosh/unicorn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/muktakosh/unicorn" "work/ex/beta-1.37-6/sources/1.36.0/gh/muktakosh/unicorn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/muktakosh/unicorn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/muktakosh/unicorn" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/muktakosh/unicorn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/muktakosh/unicorn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 55b0a35021b16ac3e8ca162e57bd8c70748fbf0b
[INFO] sha for GitHub repo muktakosh/unicorn: 55b0a35021b16ac3e8ca162e57bd8c70748fbf0b
[INFO] validating manifest of muktakosh/unicorn 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 muktakosh/unicorn 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 muktakosh/unicorn
[INFO] finished frobbing muktakosh/unicorn
[INFO] frobbed toml for muktakosh/unicorn written to work/ex/beta-1.37-6/sources/1.36.0/gh/muktakosh/unicorn/Cargo.toml
[INFO] started frobbing muktakosh/unicorn
[INFO] finished frobbing muktakosh/unicorn
[INFO] frobbed toml for muktakosh/unicorn written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/muktakosh/unicorn/Cargo.toml
[INFO] crate muktakosh/unicorn 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 muktakosh/unicorn 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/muktakosh/unicorn:/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] a68e7f2d56a87ffe8ec2cbcef7668a641afcf709969d4cd1454a7450ba376a26
[INFO] running `"docker" "start" "-a" "a68e7f2d56a87ffe8ec2cbcef7668a641afcf709969d4cd1454a7450ba376a26"`
[INFO] [stderr]    Compiling syntex_pos v0.52.0
[INFO] [stderr]    Compiling syn v0.10.5
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling term_size v0.2.1
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling serde_json v0.8.4
[INFO] [stderr]    Compiling term v0.4.4
[INFO] [stderr]    Compiling clap v2.19.2
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling syntex_errors v0.52.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stderr]    Compiling syntex_syntax v0.52.0
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling ws v0.5.3
[INFO] [stderr]    Compiling syntex v0.52.0
[INFO] [stderr]    Compiling serde_codegen v0.8.21
[INFO] [stderr]    Compiling libunicorn v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router.rs:80:21
[INFO] [stderr]    |
[INFO] [stderr] 80 |         if let Some(mut t) = self.topics.get_mut(topic_id) {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `"docker" "inspect" "a68e7f2d56a87ffe8ec2cbcef7668a641afcf709969d4cd1454a7450ba376a26"`
[INFO] running `"docker" "rm" "-f" "a68e7f2d56a87ffe8ec2cbcef7668a641afcf709969d4cd1454a7450ba376a26"`
[INFO] [stdout] a68e7f2d56a87ffe8ec2cbcef7668a641afcf709969d4cd1454a7450ba376a26
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/muktakosh/unicorn:/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] b9cd3cfa48fb238c1a265ca2a1be7c8b37a34a5f7cdd729c6d3d7cce5b93c81a
[INFO] running `"docker" "start" "-a" "b9cd3cfa48fb238c1a265ca2a1be7c8b37a34a5f7cdd729c6d3d7cce5b93c81a"`
[INFO] [stderr]    Compiling libunicorn v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router.rs:80:21
[INFO] [stderr]    |
[INFO] [stderr] 80 |         if let Some(mut t) = self.topics.get_mut(topic_id) {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `"docker" "inspect" "b9cd3cfa48fb238c1a265ca2a1be7c8b37a34a5f7cdd729c6d3d7cce5b93c81a"`
[INFO] running `"docker" "rm" "-f" "b9cd3cfa48fb238c1a265ca2a1be7c8b37a34a5f7cdd729c6d3d7cce5b93c81a"`
[INFO] [stdout] b9cd3cfa48fb238c1a265ca2a1be7c8b37a34a5f7cdd729c6d3d7cce5b93c81a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/muktakosh/unicorn:/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] 243a942aeeec3bea7bcf39a0bb15c82375bd9faf27be3058844ebe50677739c9
[INFO] running `"docker" "start" "-a" "243a942aeeec3bea7bcf39a0bb15c82375bd9faf27be3058844ebe50677739c9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/unicorn-2bb4513fe45588f2
[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/unicorn-bef884ee67ede968
[INFO] [stderr]    Doc-tests unicorn
[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] [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" "243a942aeeec3bea7bcf39a0bb15c82375bd9faf27be3058844ebe50677739c9"`
[INFO] running `"docker" "rm" "-f" "243a942aeeec3bea7bcf39a0bb15c82375bd9faf27be3058844ebe50677739c9"`
[INFO] [stdout] 243a942aeeec3bea7bcf39a0bb15c82375bd9faf27be3058844ebe50677739c9