[INFO] updating cached repository ogham/checkback
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ogham/checkback
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ogham/checkback" "work/ex/beta-1.38-1/sources/1.37.0/gh/ogham/checkback"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ogham/checkback'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ogham/checkback" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ogham/checkback"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ogham/checkback'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6899390eb025b4cbe46ac722b390b53dff47a97b
[INFO] sha for GitHub repo ogham/checkback: 6899390eb025b4cbe46ac722b390b53dff47a97b
[INFO] validating manifest of ogham/checkback 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 ogham/checkback 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 ogham/checkback
[INFO] finished frobbing ogham/checkback
[INFO] frobbed toml for ogham/checkback written to work/ex/beta-1.38-1/sources/1.37.0/gh/ogham/checkback/Cargo.toml
[INFO] started frobbing ogham/checkback
[INFO] finished frobbing ogham/checkback
[INFO] frobbed toml for ogham/checkback written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ogham/checkback/Cargo.toml
[INFO] crate ogham/checkback 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 ogham/checkback 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ogham/checkback:/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] 462fbaf2a2902fad9fa3982515cf6aa3f7b5c4c5d8d7a45bb24dcb065aefe79c
[INFO] running `"docker" "start" "-a" "462fbaf2a2902fad9fa3982515cf6aa3f7b5c4c5d8d7a45bb24dcb065aefe79c"`
[INFO] [stderr]    Compiling serde v1.0.62
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling locale v0.2.2
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling encoding_rs v0.7.2
[INFO] [stderr]    Compiling openssl-sys v0.9.31
[INFO] [stderr]    Compiling backtrace-sys v0.1.22
[INFO] [stderr]    Compiling proc-macro2 v0.4.3
[INFO] [stderr]    Compiling base64 v0.9.1
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling pad v0.1.5
[INFO] [stderr]    Compiling iso8601 v0.1.1
[INFO] [stderr]    Compiling want v0.0.4
[INFO] [stderr]    Compiling bytes v0.4.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling tokio-timer v0.2.3
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling quote v0.6.2
[INFO] [stderr]    Compiling crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling phf_shared v0.7.22
[INFO] [stderr]    Compiling mime v0.3.7
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling structopt-derive v0.2.8
[INFO] [stderr]    Compiling syn v0.14.0
[INFO] [stderr]    Compiling libflate v0.1.14
[INFO] [stderr]    Compiling tokio-threadpool v0.1.3
[INFO] [stderr]    Compiling datetime v0.4.7
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]    Compiling phf v0.7.22
[INFO] [stderr]    Compiling backtrace v0.3.8
[INFO] [stderr]    Compiling tokio-reactor v0.1.1
[INFO] [stderr]    Compiling tokio-fs v0.1.0
[INFO] [stderr]    Compiling phf_codegen v0.7.22
[INFO] [stderr]    Compiling rayon v0.9.0
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.4
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.0
[INFO] [stderr]    Compiling os_type v2.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.62
[INFO] [stderr]    Compiling tokio v0.1.6
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling serde_json v1.0.18
[INFO] [stderr]    Compiling serde_urlencoded v0.5.2
[INFO] [stderr]    Compiling native-tls v0.1.5
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling structopt v0.2.8
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling tokio-tls v0.1.4
[INFO] [stderr]    Compiling hyper v0.11.27
[INFO] [stderr]    Compiling human-panic v0.4.0
[INFO] [stderr]    Compiling quicli v0.2.0
[INFO] [stderr]    Compiling hyper-tls v0.1.3
[INFO] [stderr]    Compiling reqwest v0.8.5
[INFO] [stderr]    Compiling checkback v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 15s
[INFO] running `"docker" "inspect" "462fbaf2a2902fad9fa3982515cf6aa3f7b5c4c5d8d7a45bb24dcb065aefe79c"`
[INFO] running `"docker" "rm" "-f" "462fbaf2a2902fad9fa3982515cf6aa3f7b5c4c5d8d7a45bb24dcb065aefe79c"`
[INFO] [stdout] 462fbaf2a2902fad9fa3982515cf6aa3f7b5c4c5d8d7a45bb24dcb065aefe79c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ogham/checkback:/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] b45d675964084486396e6cdbb2f17cba4d7b06725de0aa4a62a41a1c74d3ab62
[INFO] running `"docker" "start" "-a" "b45d675964084486396e6cdbb2f17cba4d7b06725de0aa4a62a41a1c74d3ab62"`
[INFO] [stderr]    Compiling checkback v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `"docker" "inspect" "b45d675964084486396e6cdbb2f17cba4d7b06725de0aa4a62a41a1c74d3ab62"`
[INFO] running `"docker" "rm" "-f" "b45d675964084486396e6cdbb2f17cba4d7b06725de0aa4a62a41a1c74d3ab62"`
[INFO] [stdout] b45d675964084486396e6cdbb2f17cba4d7b06725de0aa4a62a41a1c74d3ab62
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ogham/checkback:/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] 1d472a11135a3a36b4cb192928e3f193e5744ff0d3274d7d51aaf7fa49de9848
[INFO] running `"docker" "start" "-a" "1d472a11135a3a36b4cb192928e3f193e5744ff0d3274d7d51aaf7fa49de9848"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/checkback-de4df5f00c7fe9c1
[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" "1d472a11135a3a36b4cb192928e3f193e5744ff0d3274d7d51aaf7fa49de9848"`
[INFO] running `"docker" "rm" "-f" "1d472a11135a3a36b4cb192928e3f193e5744ff0d3274d7d51aaf7fa49de9848"`
[INFO] [stdout] 1d472a11135a3a36b4cb192928e3f193e5744ff0d3274d7d51aaf7fa49de9848