[INFO] updating cached repository GrooveStomp/i3session-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/GrooveStomp/i3session-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/GrooveStomp/i3session-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/GrooveStomp/i3session-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/GrooveStomp/i3session-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/GrooveStomp/i3session-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GrooveStomp/i3session-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GrooveStomp/i3session-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 87e4f508f26791140d8301e14942607c773afd57
[INFO] sha for GitHub repo GrooveStomp/i3session-rs: 87e4f508f26791140d8301e14942607c773afd57
[INFO] validating manifest of GrooveStomp/i3session-rs 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 GrooveStomp/i3session-rs 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 GrooveStomp/i3session-rs
[INFO] finished frobbing GrooveStomp/i3session-rs
[INFO] frobbed toml for GrooveStomp/i3session-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/GrooveStomp/i3session-rs/Cargo.toml
[INFO] started frobbing GrooveStomp/i3session-rs
[INFO] finished frobbing GrooveStomp/i3session-rs
[INFO] frobbed toml for GrooveStomp/i3session-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GrooveStomp/i3session-rs/Cargo.toml
[INFO] crate GrooveStomp/i3session-rs 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 GrooveStomp/i3session-rs against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GrooveStomp/i3session-rs:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] c1bc6e3c6658aedefb653dbe1d8f4976bba8959660cd5898a5adaff7f652c149
[INFO] running `"docker" "start" "-a" "c1bc6e3c6658aedefb653dbe1d8f4976bba8959660cd5898a5adaff7f652c149"`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling syn v0.15.6
[INFO] [stderr]    Compiling serde_json v1.0.30
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling i3ipc v0.8.4
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]    Compiling docopt v1.0.1
[INFO] [stderr]    Compiling i3session-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `docopt::Docopt`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use docopt::Docopt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.35s
[INFO] running `"docker" "inspect" "c1bc6e3c6658aedefb653dbe1d8f4976bba8959660cd5898a5adaff7f652c149"`
[INFO] running `"docker" "rm" "-f" "c1bc6e3c6658aedefb653dbe1d8f4976bba8959660cd5898a5adaff7f652c149"`
[INFO] [stdout] c1bc6e3c6658aedefb653dbe1d8f4976bba8959660cd5898a5adaff7f652c149
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GrooveStomp/i3session-rs:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 361787a312ed8eac3d2009004a782739bc6429088c862554e50a31626d85f675
[INFO] running `"docker" "start" "-a" "361787a312ed8eac3d2009004a782739bc6429088c862554e50a31626d85f675"`
[INFO] [stderr]    Compiling i3session-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `docopt::Docopt`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use docopt::Docopt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "361787a312ed8eac3d2009004a782739bc6429088c862554e50a31626d85f675"`
[INFO] running `"docker" "rm" "-f" "361787a312ed8eac3d2009004a782739bc6429088c862554e50a31626d85f675"`
[INFO] [stdout] 361787a312ed8eac3d2009004a782739bc6429088c862554e50a31626d85f675
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GrooveStomp/i3session-rs:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 6f8bfeefe2c8f94d6338264b80d4fb20ac7b1aebb7a78f690252a8f19ce95a59
[INFO] running `"docker" "start" "-a" "6f8bfeefe2c8f94d6338264b80d4fb20ac7b1aebb7a78f690252a8f19ce95a59"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/i3session_rs-b592816acd94aa23
[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" "6f8bfeefe2c8f94d6338264b80d4fb20ac7b1aebb7a78f690252a8f19ce95a59"`
[INFO] running `"docker" "rm" "-f" "6f8bfeefe2c8f94d6338264b80d4fb20ac7b1aebb7a78f690252a8f19ce95a59"`
[INFO] [stdout] 6f8bfeefe2c8f94d6338264b80d4fb20ac7b1aebb7a78f690252a8f19ce95a59