[INFO] updating cached repository Samhaosss/Lexer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Samhaosss/Lexer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Samhaosss/Lexer" "work/ex/beta-1.37-6/sources/1.36.0/gh/Samhaosss/Lexer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Samhaosss/Lexer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Samhaosss/Lexer" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Samhaosss/Lexer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Samhaosss/Lexer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7e171e89341009785b167caab273539848966b0d
[INFO] sha for GitHub repo Samhaosss/Lexer: 7e171e89341009785b167caab273539848966b0d
[INFO] validating manifest of Samhaosss/Lexer on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Samhaosss/Lexer on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Samhaosss/Lexer
[INFO] finished frobbing Samhaosss/Lexer
[INFO] frobbed toml for Samhaosss/Lexer written to work/ex/beta-1.37-6/sources/1.36.0/gh/Samhaosss/Lexer/Cargo.toml
[INFO] started frobbing Samhaosss/Lexer
[INFO] finished frobbing Samhaosss/Lexer
[INFO] frobbed toml for Samhaosss/Lexer written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Samhaosss/Lexer/Cargo.toml
[INFO] crate Samhaosss/Lexer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Samhaosss/Lexer against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Samhaosss/Lexer:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 1f38d3fa2c9273990cb327af966f5b4a519df6fa99a339ede1f2f4acc331d73a
[INFO] running `"docker" "start" "-a" "1f38d3fa2c9273990cb327af966f5b4a519df6fa99a339ede1f2f4acc331d73a"`
[INFO] [stderr]    Compiling lexer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/buf_reader.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lexer.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 31 |             let mut tmp = String::from(i).replace("\t", "").replace("\n", "");
[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: field is never used: `err`
[INFO] [stderr]  --> src/error_handler.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     err: ErrType,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `"docker" "inspect" "1f38d3fa2c9273990cb327af966f5b4a519df6fa99a339ede1f2f4acc331d73a"`
[INFO] running `"docker" "rm" "-f" "1f38d3fa2c9273990cb327af966f5b4a519df6fa99a339ede1f2f4acc331d73a"`
[INFO] [stdout] 1f38d3fa2c9273990cb327af966f5b4a519df6fa99a339ede1f2f4acc331d73a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Samhaosss/Lexer:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 999f3ac6124c5e6e94f6ec7df3a95f914a2d878494d670716fbce6f60af9ffcb
[INFO] running `"docker" "start" "-a" "999f3ac6124c5e6e94f6ec7df3a95f914a2d878494d670716fbce6f60af9ffcb"`
[INFO] [stderr]    Compiling lexer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/buf_reader.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]   --> src/utils/mod.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     use std::env;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lexer.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 31 |             let mut tmp = String::from(i).replace("\t", "").replace("\n", "");
[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: field is never used: `err`
[INFO] [stderr]  --> src/error_handler.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     err: ErrType,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `"docker" "inspect" "999f3ac6124c5e6e94f6ec7df3a95f914a2d878494d670716fbce6f60af9ffcb"`
[INFO] running `"docker" "rm" "-f" "999f3ac6124c5e6e94f6ec7df3a95f914a2d878494d670716fbce6f60af9ffcb"`
[INFO] [stdout] 999f3ac6124c5e6e94f6ec7df3a95f914a2d878494d670716fbce6f60af9ffcb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Samhaosss/Lexer:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] af2516381fd22fc11418bd2f7e6d9ab73ce32d104a3b354abdf7600e32e3d26e
[INFO] running `"docker" "start" "-a" "af2516381fd22fc11418bd2f7e6d9ab73ce32d104a3b354abdf7600e32e3d26e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lexer-cbd752d5a7ed435e
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test buf_reader::tests::read_word ... ok
[INFO] [stdout] test utils::tests::circal_num_add_sub_correctness ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lexer-181340e5101369bf
[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]    Doc-tests lexer
[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" "af2516381fd22fc11418bd2f7e6d9ab73ce32d104a3b354abdf7600e32e3d26e"`
[INFO] running `"docker" "rm" "-f" "af2516381fd22fc11418bd2f7e6d9ab73ce32d104a3b354abdf7600e32e3d26e"`
[INFO] [stdout] af2516381fd22fc11418bd2f7e6d9ab73ce32d104a3b354abdf7600e32e3d26e