[INFO] updating cached repository jamwaffles/rust-into-tree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jamwaffles/rust-into-tree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jamwaffles/rust-into-tree" "work/ex/beta-1.38-1/sources/1.37.0/gh/jamwaffles/rust-into-tree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jamwaffles/rust-into-tree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jamwaffles/rust-into-tree" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jamwaffles/rust-into-tree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jamwaffles/rust-into-tree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 777dad381cd228877e69ff84f948d929d3d6e3f8
[INFO] sha for GitHub repo jamwaffles/rust-into-tree: 777dad381cd228877e69ff84f948d929d3d6e3f8
[INFO] validating manifest of jamwaffles/rust-into-tree 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 jamwaffles/rust-into-tree 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 jamwaffles/rust-into-tree
[INFO] finished frobbing jamwaffles/rust-into-tree
[INFO] frobbed toml for jamwaffles/rust-into-tree written to work/ex/beta-1.38-1/sources/1.37.0/gh/jamwaffles/rust-into-tree/Cargo.toml
[INFO] started frobbing jamwaffles/rust-into-tree
[INFO] finished frobbing jamwaffles/rust-into-tree
[INFO] frobbed toml for jamwaffles/rust-into-tree written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jamwaffles/rust-into-tree/Cargo.toml
[INFO] crate jamwaffles/rust-into-tree 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 jamwaffles/rust-into-tree 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jamwaffles/rust-into-tree:/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] 4b13546d12d2bef63e86a431589c1fb4dac7776e4688668e4939039a527d9e02
[INFO] running `"docker" "start" "-a" "4b13546d12d2bef63e86a431589c1fb4dac7776e4688668e4939039a527d9e02"`
[INFO] [stderr]    Compiling recurse-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `mutablething`
[INFO] [stderr]   --> src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn mutablething() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `secondmutablething`
[INFO] [stderr]   --> src/main.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn secondmutablething(mut thing: &mut Vec<i32>) -> Context {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `guard`
[INFO] [stderr]   --> src/main.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 | fn guard(data: &Vec<i32>) -> Context {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "4b13546d12d2bef63e86a431589c1fb4dac7776e4688668e4939039a527d9e02"`
[INFO] running `"docker" "rm" "-f" "4b13546d12d2bef63e86a431589c1fb4dac7776e4688668e4939039a527d9e02"`
[INFO] [stdout] 4b13546d12d2bef63e86a431589c1fb4dac7776e4688668e4939039a527d9e02
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jamwaffles/rust-into-tree:/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] 473b3d839b410329fd8dda651c8413a38132612eb5cea088113f04cec459a700
[INFO] running `"docker" "start" "-a" "473b3d839b410329fd8dda651c8413a38132612eb5cea088113f04cec459a700"`
[INFO] [stderr]    Compiling recurse-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `mutablething`
[INFO] [stderr]   --> src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn mutablething() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `secondmutablething`
[INFO] [stderr]   --> src/main.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn secondmutablething(mut thing: &mut Vec<i32>) -> Context {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `guard`
[INFO] [stderr]   --> src/main.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 | fn guard(data: &Vec<i32>) -> Context {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "473b3d839b410329fd8dda651c8413a38132612eb5cea088113f04cec459a700"`
[INFO] running `"docker" "rm" "-f" "473b3d839b410329fd8dda651c8413a38132612eb5cea088113f04cec459a700"`
[INFO] [stdout] 473b3d839b410329fd8dda651c8413a38132612eb5cea088113f04cec459a700
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jamwaffles/rust-into-tree:/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] 9169cb19c71345663d5eba7dc3f67cd170cbc297dbafba19c1bf9c1a58720c89
[INFO] running `"docker" "start" "-a" "9169cb19c71345663d5eba7dc3f67cd170cbc297dbafba19c1bf9c1a58720c89"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/recurse_test-3b13eadd0f2a706c
[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" "9169cb19c71345663d5eba7dc3f67cd170cbc297dbafba19c1bf9c1a58720c89"`
[INFO] running `"docker" "rm" "-f" "9169cb19c71345663d5eba7dc3f67cd170cbc297dbafba19c1bf9c1a58720c89"`
[INFO] [stdout] 9169cb19c71345663d5eba7dc3f67cd170cbc297dbafba19c1bf9c1a58720c89