[INFO] updating cached repository jalextowle/linearize
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jalextowle/linearize
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jalextowle/linearize" "work/ex/beta-1.38-1/sources/1.37.0/gh/jalextowle/linearize"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jalextowle/linearize'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jalextowle/linearize" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jalextowle/linearize"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jalextowle/linearize'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0f43ee3d52e23b199f97cfefe56772b0491b7cf2
[INFO] sha for GitHub repo jalextowle/linearize: 0f43ee3d52e23b199f97cfefe56772b0491b7cf2
[INFO] validating manifest of jalextowle/linearize 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 jalextowle/linearize 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 jalextowle/linearize
[INFO] finished frobbing jalextowle/linearize
[INFO] frobbed toml for jalextowle/linearize written to work/ex/beta-1.38-1/sources/1.37.0/gh/jalextowle/linearize/Cargo.toml
[INFO] started frobbing jalextowle/linearize
[INFO] finished frobbing jalextowle/linearize
[INFO] frobbed toml for jalextowle/linearize written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jalextowle/linearize/Cargo.toml
[INFO] crate jalextowle/linearize 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 jalextowle/linearize against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jalextowle/linearize:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ef88e8f51b04eeaadc90d2941d8f7fce7e0332e2ca94ed981fed7e52d225c756
[INFO] running `"docker" "start" "-a" "ef88e8f51b04eeaadc90d2941d8f7fce7e0332e2ca94ed981fed7e52d225c756"`
[INFO] [stderr]    Compiling linearizer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/linearize.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/linearize.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/lex.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut result = Token::NoToken;
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `merged`
[INFO] [stderr]   --> src/linearize.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let merged = merge(&list);
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_merged`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/linearize.rs:82:10
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn merge(list: &Vec<u32>) -> Vec<u32> { vec![] }
[INFO] [stderr]    |          ^^^^ help: consider prefixing with an underscore: `_list`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lex.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut result = Token::NoToken;
[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/linearize.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut result = vec![];
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `linearize`
[INFO] [stderr]   --> src/linearize.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn linearize(front: u32, mut list: Vec<u32>) -> Vec<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `merge`
[INFO] [stderr]   --> src/linearize.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn merge(list: &Vec<u32>) -> Vec<u32> { vec![] }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `linearizer::lex`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use linearizer::lex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `linearizer::linearize`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use linearizer::linearize;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let input = fs::read_to_string(name).expect("Unable to open input file");
[INFO] [stderr]   |         ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "ef88e8f51b04eeaadc90d2941d8f7fce7e0332e2ca94ed981fed7e52d225c756"`
[INFO] running `"docker" "rm" "-f" "ef88e8f51b04eeaadc90d2941d8f7fce7e0332e2ca94ed981fed7e52d225c756"`
[INFO] [stdout] ef88e8f51b04eeaadc90d2941d8f7fce7e0332e2ca94ed981fed7e52d225c756
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jalextowle/linearize:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9cb5d1d01388a7daeabec8744f04a88281ca2a32d3fdb8abd8253f31b20d2be1
[INFO] running `"docker" "start" "-a" "9cb5d1d01388a7daeabec8744f04a88281ca2a32d3fdb8abd8253f31b20d2be1"`
[INFO] [stderr]    Compiling linearizer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `linearizer::lex`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use linearizer::lex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `linearizer::linearize`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use linearizer::linearize;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/linearize.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/linearize.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let input = fs::read_to_string(name).expect("Unable to open input file");
[INFO] [stderr]   |         ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/lex.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut result = Token::NoToken;
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `merged`
[INFO] [stderr]   --> src/linearize.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let merged = merge(&list);
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_merged`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/linearize.rs:82:10
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn merge(list: &Vec<u32>) -> Vec<u32> { vec![] }
[INFO] [stderr]    |          ^^^^ help: consider prefixing with an underscore: `_list`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lex.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut result = Token::NoToken;
[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/linearize.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut result = vec![];
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `linearize`
[INFO] [stderr]   --> src/linearize.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn linearize(front: u32, mut list: Vec<u32>) -> Vec<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `merge`
[INFO] [stderr]   --> src/linearize.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn merge(list: &Vec<u32>) -> Vec<u32> { vec![] }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "9cb5d1d01388a7daeabec8744f04a88281ca2a32d3fdb8abd8253f31b20d2be1"`
[INFO] running `"docker" "rm" "-f" "9cb5d1d01388a7daeabec8744f04a88281ca2a32d3fdb8abd8253f31b20d2be1"`
[INFO] [stdout] 9cb5d1d01388a7daeabec8744f04a88281ca2a32d3fdb8abd8253f31b20d2be1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jalextowle/linearize:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 1206e8eb8486c54a76dbd655d9d8e86292763cf4655dc881bec8b76f8ad2ddda
[INFO] running `"docker" "start" "-a" "1206e8eb8486c54a76dbd655d9d8e86292763cf4655dc881bec8b76f8ad2ddda"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/linearizer-2249835038ee4206
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test lex::tests::identifier_test1 ... ok
[INFO] [stdout] test lex::tests::comma_test1 ... ok
[INFO] [stdout] test lex::tests::is_test1 ... ok
[INFO] [stdout] test lex::tests::no_token_test1 ... ok
[INFO] [stdout] test lex::tests::contract_test1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/linearizer-f8e6cb60051e3d90
[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] [stderr]      Running /opt/crater/target/debug/deps/lex_tests-48187c98cfcfaa61
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lex_tests::lex_integration_test1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests linearizer
[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" "1206e8eb8486c54a76dbd655d9d8e86292763cf4655dc881bec8b76f8ad2ddda"`
[INFO] running `"docker" "rm" "-f" "1206e8eb8486c54a76dbd655d9d8e86292763cf4655dc881bec8b76f8ad2ddda"`
[INFO] [stdout] 1206e8eb8486c54a76dbd655d9d8e86292763cf4655dc881bec8b76f8ad2ddda