[INFO] updating cached repository juggernaut0/snek
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/juggernaut0/snek
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/juggernaut0/snek" "work/ex/beta-1.38-1/sources/1.37.0/gh/juggernaut0/snek"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/juggernaut0/snek'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/juggernaut0/snek" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/juggernaut0/snek"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/juggernaut0/snek'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 49c64b3de6c848a7253d4c04dc9a5d46b5280139
[INFO] sha for GitHub repo juggernaut0/snek: 49c64b3de6c848a7253d4c04dc9a5d46b5280139
[INFO] validating manifest of juggernaut0/snek 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 juggernaut0/snek 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 juggernaut0/snek
[INFO] finished frobbing juggernaut0/snek
[INFO] frobbed toml for juggernaut0/snek written to work/ex/beta-1.38-1/sources/1.37.0/gh/juggernaut0/snek/Cargo.toml
[INFO] started frobbing juggernaut0/snek
[INFO] finished frobbing juggernaut0/snek
[INFO] frobbed toml for juggernaut0/snek written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/juggernaut0/snek/Cargo.toml
[INFO] crate juggernaut0/snek 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing juggernaut0/snek 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/juggernaut0/snek:/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] 461708b90d234911dbd6447aafb8a2ad581abfae4904d61a31963da4cd9703ff
[INFO] running `"docker" "start" "-a" "461708b90d234911dbd6447aafb8a2ad581abfae4904d61a31963da4cd9703ff"`
[INFO] [stderr]    Compiling snek v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `IDENT`
[INFO] [stderr]    --> src/scanner.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     IDENT,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `STRING`
[INFO] [stderr]    --> src/scanner.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     STRING,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `KEYWORD`
[INFO] [stderr]    --> src/scanner.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     KEYWORD,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SYMBOL`
[INFO] [stderr]    --> src/scanner.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     SYMBOL,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "461708b90d234911dbd6447aafb8a2ad581abfae4904d61a31963da4cd9703ff"`
[INFO] running `"docker" "rm" "-f" "461708b90d234911dbd6447aafb8a2ad581abfae4904d61a31963da4cd9703ff"`
[INFO] [stdout] 461708b90d234911dbd6447aafb8a2ad581abfae4904d61a31963da4cd9703ff
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/juggernaut0/snek:/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] eb01e3b0fa1a7d72aa6d54d088a61fdbe4d098b997a734602bd7730948845e53
[INFO] running `"docker" "start" "-a" "eb01e3b0fa1a7d72aa6d54d088a61fdbe4d098b997a734602bd7730948845e53"`
[INFO] [stderr]    Compiling snek v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `IDENT`
[INFO] [stderr]    --> src/scanner.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     IDENT,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `STRING`
[INFO] [stderr]    --> src/scanner.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     STRING,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `KEYWORD`
[INFO] [stderr]    --> src/scanner.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     KEYWORD,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SYMBOL`
[INFO] [stderr]    --> src/scanner.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     SYMBOL,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "eb01e3b0fa1a7d72aa6d54d088a61fdbe4d098b997a734602bd7730948845e53"`
[INFO] running `"docker" "rm" "-f" "eb01e3b0fa1a7d72aa6d54d088a61fdbe4d098b997a734602bd7730948845e53"`
[INFO] [stdout] eb01e3b0fa1a7d72aa6d54d088a61fdbe4d098b997a734602bd7730948845e53
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/juggernaut0/snek:/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] c27d95e1ece82a3e6634d7e89fe675aa7dec1eee961a06732c8a80746b4712b1
[INFO] running `"docker" "start" "-a" "c27d95e1ece82a3e6634d7e89fe675aa7dec1eee961a06732c8a80746b4712b1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/snek-a21955bc3733148d
[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" "c27d95e1ece82a3e6634d7e89fe675aa7dec1eee961a06732c8a80746b4712b1"`
[INFO] running `"docker" "rm" "-f" "c27d95e1ece82a3e6634d7e89fe675aa7dec1eee961a06732c8a80746b4712b1"`
[INFO] [stdout] c27d95e1ece82a3e6634d7e89fe675aa7dec1eee961a06732c8a80746b4712b1