[INFO] updating cached repository corporealshift/rust-changes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/corporealshift/rust-changes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/corporealshift/rust-changes" "work/ex/beta-1.38-1/sources/1.37.0/gh/corporealshift/rust-changes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/corporealshift/rust-changes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/corporealshift/rust-changes" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/corporealshift/rust-changes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/corporealshift/rust-changes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2e9b997744112e7d00290bc7f0e6bd87e22ea2ad
[INFO] sha for GitHub repo corporealshift/rust-changes: 2e9b997744112e7d00290bc7f0e6bd87e22ea2ad
[INFO] validating manifest of corporealshift/rust-changes on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of corporealshift/rust-changes on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing corporealshift/rust-changes
[INFO] finished frobbing corporealshift/rust-changes
[INFO] frobbed toml for corporealshift/rust-changes written to work/ex/beta-1.38-1/sources/1.37.0/gh/corporealshift/rust-changes/Cargo.toml
[INFO] started frobbing corporealshift/rust-changes
[INFO] finished frobbing corporealshift/rust-changes
[INFO] frobbed toml for corporealshift/rust-changes written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/corporealshift/rust-changes/Cargo.toml
[INFO] crate corporealshift/rust-changes already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing corporealshift/rust-changes against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/corporealshift/rust-changes:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 55a20da34565d23815ed710cfca12943cfd28f0c18e38dec173fe9428cacdde5
[INFO] running `"docker" "start" "-a" "55a20da34565d23815ed710cfca12943cfd28f0c18e38dec173fe9428cacdde5"`
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.15
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling uuid v0.1.18
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling tokio-threadpool v0.1.8
[INFO] [stderr]    Compiling mktemp v0.3.1
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.6
[INFO] [stderr]    Compiling h2 v0.1.13
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio v0.1.11
[INFO] [stderr]    Compiling hyper v0.12.15
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling libgit2-sys v0.7.10
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling reqwest v0.9.5
[INFO] [stderr]    Compiling git2 v0.7.5
[INFO] [stderr]    Compiling changeswr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `old_version`
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let old_version = get_from_input("the current tag".to_string())?;
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_old_version`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `displayName` should have a snake case name
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     displayName: String,
[INFO] [stderr]    |     ^^^^^^^^^^^ help: convert the identifier to snake case: `display_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `"docker" "inspect" "55a20da34565d23815ed710cfca12943cfd28f0c18e38dec173fe9428cacdde5"`
[INFO] running `"docker" "rm" "-f" "55a20da34565d23815ed710cfca12943cfd28f0c18e38dec173fe9428cacdde5"`
[INFO] [stdout] 55a20da34565d23815ed710cfca12943cfd28f0c18e38dec173fe9428cacdde5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/corporealshift/rust-changes:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] dee0c34ea823b401a707ec1441ec15c7163cdb0709226f280bf5c7b76c8df019
[INFO] running `"docker" "start" "-a" "dee0c34ea823b401a707ec1441ec15c7163cdb0709226f280bf5c7b76c8df019"`
[INFO] [stderr]    Compiling changeswr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `old_version`
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let old_version = get_from_input("the current tag".to_string())?;
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_old_version`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `displayName` should have a snake case name
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     displayName: String,
[INFO] [stderr]    |     ^^^^^^^^^^^ help: convert the identifier to snake case: `display_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `"docker" "inspect" "dee0c34ea823b401a707ec1441ec15c7163cdb0709226f280bf5c7b76c8df019"`
[INFO] running `"docker" "rm" "-f" "dee0c34ea823b401a707ec1441ec15c7163cdb0709226f280bf5c7b76c8df019"`
[INFO] [stdout] dee0c34ea823b401a707ec1441ec15c7163cdb0709226f280bf5c7b76c8df019
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/corporealshift/rust-changes:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] aa8a9b6e9fe70604393e3ad9bd554d2d133472d6195dc55c2255d1ba3a57bc2f
[INFO] running `"docker" "start" "-a" "aa8a9b6e9fe70604393e3ad9bd554d2d133472d6195dc55c2255d1ba3a57bc2f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/changeswr-4d0cbc2b0db78843
[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" "aa8a9b6e9fe70604393e3ad9bd554d2d133472d6195dc55c2255d1ba3a57bc2f"`
[INFO] running `"docker" "rm" "-f" "aa8a9b6e9fe70604393e3ad9bd554d2d133472d6195dc55c2255d1ba3a57bc2f"`
[INFO] [stdout] aa8a9b6e9fe70604393e3ad9bd554d2d133472d6195dc55c2255d1ba3a57bc2f