[INFO] updating cached repository gardrek/bollox
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gardrek/bollox
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gardrek/bollox" "work/ex/beta-1.37-6/sources/1.36.0/gh/gardrek/bollox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/gardrek/bollox'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gardrek/bollox" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gardrek/bollox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gardrek/bollox'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c67774421957c3e34fbac4451a150b781f2a80c
[INFO] sha for GitHub repo gardrek/bollox: 3c67774421957c3e34fbac4451a150b781f2a80c
[INFO] validating manifest of gardrek/bollox 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 gardrek/bollox 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 gardrek/bollox
[INFO] finished frobbing gardrek/bollox
[INFO] frobbed toml for gardrek/bollox written to work/ex/beta-1.37-6/sources/1.36.0/gh/gardrek/bollox/Cargo.toml
[INFO] started frobbing gardrek/bollox
[INFO] finished frobbing gardrek/bollox
[INFO] frobbed toml for gardrek/bollox written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gardrek/bollox/Cargo.toml
[INFO] crate gardrek/bollox 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 gardrek/bollox 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/gardrek/bollox:/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] b7f9cefee7da498086d51a42998a5c9112fa072045cebb3144d1f6fc766422e1
[INFO] running `"docker" "start" "-a" "b7f9cefee7da498086d51a42998a5c9112fa072045cebb3144d1f6fc766422e1"`
[INFO] [stderr]    Compiling string-interner v0.7.0
[INFO] [stderr]    Compiling bollox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `crate::INTERNER`
[INFO] [stderr]  --> src/parser.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::INTERNER;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `VariableAccess`
[INFO] [stderr]   --> src/ast.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     VariableAccess(Sym),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dynamic`
[INFO] [stderr]   --> src/object.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Dynamic(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `"docker" "inspect" "b7f9cefee7da498086d51a42998a5c9112fa072045cebb3144d1f6fc766422e1"`
[INFO] running `"docker" "rm" "-f" "b7f9cefee7da498086d51a42998a5c9112fa072045cebb3144d1f6fc766422e1"`
[INFO] [stdout] b7f9cefee7da498086d51a42998a5c9112fa072045cebb3144d1f6fc766422e1
[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/gardrek/bollox:/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] 2891b14bdf95059426c20276b6fa7ef08a4a5acd92b732b5b5f67a8066fc6985
[INFO] running `"docker" "start" "-a" "2891b14bdf95059426c20276b6fa7ef08a4a5acd92b732b5b5f67a8066fc6985"`
[INFO] [stderr]    Compiling bollox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `crate::INTERNER`
[INFO] [stderr]  --> src/parser.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::INTERNER;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `VariableAccess`
[INFO] [stderr]   --> src/ast.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     VariableAccess(Sym),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dynamic`
[INFO] [stderr]   --> src/object.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Dynamic(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "2891b14bdf95059426c20276b6fa7ef08a4a5acd92b732b5b5f67a8066fc6985"`
[INFO] running `"docker" "rm" "-f" "2891b14bdf95059426c20276b6fa7ef08a4a5acd92b732b5b5f67a8066fc6985"`
[INFO] [stdout] 2891b14bdf95059426c20276b6fa7ef08a4a5acd92b732b5b5f67a8066fc6985
[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/gardrek/bollox:/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] 174730a9d43d92c0d54a7803970f11a7bf30499516fffcf0b4e64ecec8927469
[INFO] running `"docker" "start" "-a" "174730a9d43d92c0d54a7803970f11a7bf30499516fffcf0b4e64ecec8927469"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bollox-8ebf04603e46abcd
[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" "174730a9d43d92c0d54a7803970f11a7bf30499516fffcf0b4e64ecec8927469"`
[INFO] running `"docker" "rm" "-f" "174730a9d43d92c0d54a7803970f11a7bf30499516fffcf0b4e64ecec8927469"`
[INFO] [stdout] 174730a9d43d92c0d54a7803970f11a7bf30499516fffcf0b4e64ecec8927469