[INFO] updating cached repository charliethomson/linkedlrst
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/charliethomson/linkedlrst
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/charliethomson/linkedlrst" "work/ex/beta-1.38-1/sources/1.37.0/gh/charliethomson/linkedlrst"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/charliethomson/linkedlrst'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/charliethomson/linkedlrst" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/charliethomson/linkedlrst"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/charliethomson/linkedlrst'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fca5202f305a3f5f86eda6cd49a59257c179bf33
[INFO] sha for GitHub repo charliethomson/linkedlrst: fca5202f305a3f5f86eda6cd49a59257c179bf33
[INFO] validating manifest of charliethomson/linkedlrst 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 charliethomson/linkedlrst 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 charliethomson/linkedlrst
[INFO] finished frobbing charliethomson/linkedlrst
[INFO] frobbed toml for charliethomson/linkedlrst written to work/ex/beta-1.38-1/sources/1.37.0/gh/charliethomson/linkedlrst/Cargo.toml
[INFO] started frobbing charliethomson/linkedlrst
[INFO] finished frobbing charliethomson/linkedlrst
[INFO] frobbed toml for charliethomson/linkedlrst written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/charliethomson/linkedlrst/Cargo.toml
[INFO] crate charliethomson/linkedlrst 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 charliethomson/linkedlrst 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/charliethomson/linkedlrst:/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] 7cbfa673f254073ed49f3f45c4c8bb741abd25030746d66ac2425c3203c53aa2
[INFO] running `"docker" "start" "-a" "7cbfa673f254073ed49f3f45c4c8bb741abd25030746d66ac2425c3203c53aa2"`
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling typename_derive v0.1.3
[INFO] [stderr]    Compiling typename v0.1.1
[INFO] [stderr]    Compiling linkedlist v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `dealloc`
[INFO] [stderr]  --> src/main.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 |     alloc::{alloc, dealloc, Layout},
[INFO] [stderr]   |                    ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `one`
[INFO] [stderr]   --> src/main.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut one = Node::new(10).with_next(Some(two.ptr));
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_one`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let mut two = Node::new(15);
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut one = Node::new(10).with_next(Some(two.ptr));
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.88s
[INFO] running `"docker" "inspect" "7cbfa673f254073ed49f3f45c4c8bb741abd25030746d66ac2425c3203c53aa2"`
[INFO] running `"docker" "rm" "-f" "7cbfa673f254073ed49f3f45c4c8bb741abd25030746d66ac2425c3203c53aa2"`
[INFO] [stdout] 7cbfa673f254073ed49f3f45c4c8bb741abd25030746d66ac2425c3203c53aa2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/charliethomson/linkedlrst:/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] bcbcc55f70abd17ec39d5db490ba1edb59bfe0c217f90dcf1b97e0a879e4ac83
[INFO] running `"docker" "start" "-a" "bcbcc55f70abd17ec39d5db490ba1edb59bfe0c217f90dcf1b97e0a879e4ac83"`
[INFO] [stderr]    Compiling linkedlist v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `dealloc`
[INFO] [stderr]  --> src/main.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 |     alloc::{alloc, dealloc, Layout},
[INFO] [stderr]   |                    ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `one`
[INFO] [stderr]   --> src/main.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut one = Node::new(10).with_next(Some(two.ptr));
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_one`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let mut two = Node::new(15);
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut one = Node::new(10).with_next(Some(two.ptr));
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "bcbcc55f70abd17ec39d5db490ba1edb59bfe0c217f90dcf1b97e0a879e4ac83"`
[INFO] running `"docker" "rm" "-f" "bcbcc55f70abd17ec39d5db490ba1edb59bfe0c217f90dcf1b97e0a879e4ac83"`
[INFO] [stdout] bcbcc55f70abd17ec39d5db490ba1edb59bfe0c217f90dcf1b97e0a879e4ac83
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/charliethomson/linkedlrst:/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] b3e48553f860aa4d4b88f03f536f15b7c687f4060d980007a508f889cadb4191
[INFO] running `"docker" "start" "-a" "b3e48553f860aa4d4b88f03f536f15b7c687f4060d980007a508f889cadb4191"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/linkedlist-b206075c5ceb6230
[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" "b3e48553f860aa4d4b88f03f536f15b7c687f4060d980007a508f889cadb4191"`
[INFO] running `"docker" "rm" "-f" "b3e48553f860aa4d4b88f03f536f15b7c687f4060d980007a508f889cadb4191"`
[INFO] [stdout] b3e48553f860aa4d4b88f03f536f15b7c687f4060d980007a508f889cadb4191