[INFO] cloning repository hmc-memsafe-2016f/wk2-starter
[INFO] running `"git" "clone" "--bare" "git://github.com/hmc-memsafe-2016f/wk2-starter.git" "work/cache/sources/gh/hmc-memsafe-2016f/wk2-starter"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/hmc-memsafe-2016f/wk2-starter'...
[INFO] running `"git" "clone" "work/cache/sources/gh/hmc-memsafe-2016f/wk2-starter" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/hmc-memsafe-2016f/wk2-starter"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/hmc-memsafe-2016f/wk2-starter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hmc-memsafe-2016f/wk2-starter" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/hmc-memsafe-2016f/wk2-starter"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/hmc-memsafe-2016f/wk2-starter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dde90e4a050fbfb2d74e08d7736e20dc87045162
[INFO] sha for GitHub repo hmc-memsafe-2016f/wk2-starter: dde90e4a050fbfb2d74e08d7736e20dc87045162
[INFO] validating manifest of hmc-memsafe-2016f/wk2-starter on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hmc-memsafe-2016f/wk2-starter on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hmc-memsafe-2016f/wk2-starter
[INFO] finished frobbing hmc-memsafe-2016f/wk2-starter
[INFO] frobbed toml for hmc-memsafe-2016f/wk2-starter written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/hmc-memsafe-2016f/wk2-starter/Cargo.toml
[INFO] started frobbing hmc-memsafe-2016f/wk2-starter
[INFO] finished frobbing hmc-memsafe-2016f/wk2-starter
[INFO] frobbed toml for hmc-memsafe-2016f/wk2-starter written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/hmc-memsafe-2016f/wk2-starter/Cargo.toml
[INFO] crate hmc-memsafe-2016f/wk2-starter already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/hmc-memsafe-2016f/wk2-starter/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hmc-memsafe-2016f/wk2-starter against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/hmc-memsafe-2016f/wk2-starter:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] d5521a7b7e4a84c2b242cacb0bb715281d899bd4c1d2f65504ffddcf3c0f7dc3
[INFO] running `"docker" "start" "-a" "d5521a7b7e4a84c2b242cacb0bb715281d899bd4c1d2f65504ffddcf3c0f7dc3"`
[INFO] [stderr]    Compiling wk2-starter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `Expr`
[INFO] [stderr]  --> src/expr/expr.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Expr {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BinOp`
[INFO] [stderr]   --> src/expr/expr.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum BinOp {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `evaluate`
[INFO] [stderr]   --> src/expr/expr.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn evaluate(&self) -> isize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `operation_count`
[INFO] [stderr]   --> src/expr/expr.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn operation_count(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `depth`
[INFO] [stderr]   --> src/expr/expr.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn depth(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "d5521a7b7e4a84c2b242cacb0bb715281d899bd4c1d2f65504ffddcf3c0f7dc3"`
[INFO] running `"docker" "rm" "-f" "d5521a7b7e4a84c2b242cacb0bb715281d899bd4c1d2f65504ffddcf3c0f7dc3"`
[INFO] [stdout] d5521a7b7e4a84c2b242cacb0bb715281d899bd4c1d2f65504ffddcf3c0f7dc3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/hmc-memsafe-2016f/wk2-starter:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9950e73112e426f2522b7159a0d1d5e7f7cf8449631e0e0f669402cc497f0913
[INFO] running `"docker" "start" "-a" "9950e73112e426f2522b7159a0d1d5e7f7cf8449631e0e0f669402cc497f0913"`
[INFO] [stderr]    Compiling wk2-starter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `Expr`
[INFO] [stderr]  --> src/expr/expr.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Expr {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BinOp`
[INFO] [stderr]   --> src/expr/expr.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum BinOp {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `evaluate`
[INFO] [stderr]   --> src/expr/expr.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn evaluate(&self) -> isize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `operation_count`
[INFO] [stderr]   --> src/expr/expr.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn operation_count(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `depth`
[INFO] [stderr]   --> src/expr/expr.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn depth(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "9950e73112e426f2522b7159a0d1d5e7f7cf8449631e0e0f669402cc497f0913"`
[INFO] running `"docker" "rm" "-f" "9950e73112e426f2522b7159a0d1d5e7f7cf8449631e0e0f669402cc497f0913"`
[INFO] [stdout] 9950e73112e426f2522b7159a0d1d5e7f7cf8449631e0e0f669402cc497f0913
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/hmc-memsafe-2016f/wk2-starter:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] d31b6a1e94e35e993a4b2b3b0240ee3462efe95f91b5988e66f0b19b800892da
[INFO] running `"docker" "start" "-a" "d31b6a1e94e35e993a4b2b3b0240ee3462efe95f91b5988e66f0b19b800892da"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/repl-4bcb8346575a34d6
[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" "d31b6a1e94e35e993a4b2b3b0240ee3462efe95f91b5988e66f0b19b800892da"`
[INFO] running `"docker" "rm" "-f" "d31b6a1e94e35e993a4b2b3b0240ee3462efe95f91b5988e66f0b19b800892da"`
[INFO] [stdout] d31b6a1e94e35e993a4b2b3b0240ee3462efe95f91b5988e66f0b19b800892da