[INFO] cloning repository KeyboardFire/xkcd1537-rust
[INFO] running `"git" "clone" "--bare" "git://github.com/KeyboardFire/xkcd1537-rust.git" "work/cache/sources/gh/KeyboardFire/xkcd1537-rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/KeyboardFire/xkcd1537-rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/KeyboardFire/xkcd1537-rust" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/KeyboardFire/xkcd1537-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/KeyboardFire/xkcd1537-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/KeyboardFire/xkcd1537-rust" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/KeyboardFire/xkcd1537-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/KeyboardFire/xkcd1537-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 54c82318d7c0ca798ced908cc6d76ce19d1f23e1
[INFO] sha for GitHub repo KeyboardFire/xkcd1537-rust: 54c82318d7c0ca798ced908cc6d76ce19d1f23e1
[INFO] validating manifest of KeyboardFire/xkcd1537-rust 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 KeyboardFire/xkcd1537-rust 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 KeyboardFire/xkcd1537-rust
[INFO] finished frobbing KeyboardFire/xkcd1537-rust
[INFO] frobbed toml for KeyboardFire/xkcd1537-rust written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/KeyboardFire/xkcd1537-rust/Cargo.toml
[INFO] started frobbing KeyboardFire/xkcd1537-rust
[INFO] finished frobbing KeyboardFire/xkcd1537-rust
[INFO] frobbed toml for KeyboardFire/xkcd1537-rust written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/KeyboardFire/xkcd1537-rust/Cargo.toml
[INFO] crate KeyboardFire/xkcd1537-rust 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing KeyboardFire/xkcd1537-rust against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/KeyboardFire/xkcd1537-rust:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 9e0a2ec419d27d0726da95a8e0f22ca39c0b623219eb2f543f185e6c1c4e2874
[INFO] running `"docker" "start" "-a" "9e0a2ec419d27d0726da95a8e0f22ca39c0b623219eb2f543f185e6c1c4e2874"`
[INFO] [stderr]    Compiling xkcd1537 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:239:45
[INFO] [stderr]     |
[INFO] [stderr] 239 |             Token::XFunction(Function::Wrap(n)) => { },
[INFO] [stderr]     |                                             ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `XArray`
[INFO] [stderr]   --> src/main.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     XArray(Vec<Token>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `exec_rpn`
[INFO] [stderr]    --> src/main.rs:227:1
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn exec_rpn(rpn: Vec<Token>) -> Vec<Token> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "9e0a2ec419d27d0726da95a8e0f22ca39c0b623219eb2f543f185e6c1c4e2874"`
[INFO] running `"docker" "rm" "-f" "9e0a2ec419d27d0726da95a8e0f22ca39c0b623219eb2f543f185e6c1c4e2874"`
[INFO] [stdout] 9e0a2ec419d27d0726da95a8e0f22ca39c0b623219eb2f543f185e6c1c4e2874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/KeyboardFire/xkcd1537-rust:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] a84a03bcf07a4a236c62a7ae9a193a3b85e787c3ab308860429a636c2efc006b
[INFO] running `"docker" "start" "-a" "a84a03bcf07a4a236c62a7ae9a193a3b85e787c3ab308860429a636c2efc006b"`
[INFO] [stderr]    Compiling xkcd1537 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:239:45
[INFO] [stderr]     |
[INFO] [stderr] 239 |             Token::XFunction(Function::Wrap(n)) => { },
[INFO] [stderr]     |                                             ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `XArray`
[INFO] [stderr]   --> src/main.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     XArray(Vec<Token>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `exec_rpn`
[INFO] [stderr]    --> src/main.rs:227:1
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn exec_rpn(rpn: Vec<Token>) -> Vec<Token> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "a84a03bcf07a4a236c62a7ae9a193a3b85e787c3ab308860429a636c2efc006b"`
[INFO] running `"docker" "rm" "-f" "a84a03bcf07a4a236c62a7ae9a193a3b85e787c3ab308860429a636c2efc006b"`
[INFO] [stdout] a84a03bcf07a4a236c62a7ae9a193a3b85e787c3ab308860429a636c2efc006b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/KeyboardFire/xkcd1537-rust:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] e7a11d9aa421c31e5185ccf36fe43c798c80a59db38e078f300d2154dc384a85
[INFO] running `"docker" "start" "-a" "e7a11d9aa421c31e5185ccf36fe43c798c80a59db38e078f300d2154dc384a85"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xkcd1537-f133f9bc56432992
[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" "e7a11d9aa421c31e5185ccf36fe43c798c80a59db38e078f300d2154dc384a85"`
[INFO] running `"docker" "rm" "-f" "e7a11d9aa421c31e5185ccf36fe43c798c80a59db38e078f300d2154dc384a85"`
[INFO] [stdout] e7a11d9aa421c31e5185ccf36fe43c798c80a59db38e078f300d2154dc384a85