[INFO] crate em 0.2.0 is already in cache
[INFO] extracting crate em 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/em/0.2.0
[INFO] extracting crate em 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/em/0.2.0
[INFO] validating manifest of em-0.2.0 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 em-0.2.0 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 em-0.2.0
[INFO] finished frobbing em-0.2.0
[INFO] frobbed toml for em-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/em/0.2.0/Cargo.toml
[INFO] started frobbing em-0.2.0
[INFO] finished frobbing em-0.2.0
[INFO] frobbed toml for em-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/em/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 em-0.2.0 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/em/0.2.0:/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] e752e007b89cdd79de76d2b6949421d530b1864d3317b13f7eef83021ee94456
[INFO] running `"docker" "start" "-a" "e752e007b89cdd79de76d2b6949421d530b1864d3317b13f7eef83021ee94456"`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling em v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `name` is never read
[INFO] [stderr]   --> src/lib.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let mut name = String::new();
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `is_vector` is never read
[INFO] [stderr]   --> src/lib.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut is_vector = false;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ty` is never read
[INFO] [stderr]   --> src/lib.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut ty = EmuType::Null;
[INFO] [stderr]    |                 ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `for_var_name` is never read
[INFO] [stderr]    --> src/lib.rs:224:25
[INFO] [stderr]     |
[INFO] [stderr] 224 |                 let mut for_var_name = String::new();
[INFO] [stderr]     |                         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `is_precision_conversion` is never read
[INFO] [stderr]    --> src/lib.rs:361:25
[INFO] [stderr]     |
[INFO] [stderr] 361 |                 let mut is_precision_conversion = false;
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `is_pub` is never read
[INFO] [stderr]    --> src/lib.rs:586:17
[INFO] [stderr]     |
[INFO] [stderr] 586 |         let mut is_pub = false;
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `name` is never read
[INFO] [stderr]    --> src/lib.rs:606:25
[INFO] [stderr]     |
[INFO] [stderr] 606 |                 let mut name = String::new();
[INFO] [stderr]     |                         ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ty` is never read
[INFO] [stderr]    --> src/lib.rs:620:29
[INFO] [stderr]     |
[INFO] [stderr] 620 |                     let mut ty = EmuType::Null;
[INFO] [stderr]     |                             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `is_vector` is never read
[INFO] [stderr]    --> src/lib.rs:621:29
[INFO] [stderr]     |
[INFO] [stderr] 621 |                     let mut is_vector = false;
[INFO] [stderr]     |                             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.09s
[INFO] running `"docker" "inspect" "e752e007b89cdd79de76d2b6949421d530b1864d3317b13f7eef83021ee94456"`
[INFO] running `"docker" "rm" "-f" "e752e007b89cdd79de76d2b6949421d530b1864d3317b13f7eef83021ee94456"`
[INFO] [stdout] e752e007b89cdd79de76d2b6949421d530b1864d3317b13f7eef83021ee94456
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/em/0.2.0:/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] 4f156d37d33c61e76d54a4758fd680d5954deee04db216f1667467551625f13d
[INFO] running `"docker" "start" "-a" "4f156d37d33c61e76d54a4758fd680d5954deee04db216f1667467551625f13d"`
[INFO] [stderr]    Compiling em v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `name` is never read
[INFO] [stderr]   --> src/lib.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let mut name = String::new();
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `is_vector` is never read
[INFO] [stderr]   --> src/lib.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut is_vector = false;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ty` is never read
[INFO] [stderr]   --> src/lib.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut ty = EmuType::Null;
[INFO] [stderr]    |                 ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `for_var_name` is never read
[INFO] [stderr]    --> src/lib.rs:224:25
[INFO] [stderr]     |
[INFO] [stderr] 224 |                 let mut for_var_name = String::new();
[INFO] [stderr]     |                         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `is_precision_conversion` is never read
[INFO] [stderr]    --> src/lib.rs:361:25
[INFO] [stderr]     |
[INFO] [stderr] 361 |                 let mut is_precision_conversion = false;
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `is_pub` is never read
[INFO] [stderr]    --> src/lib.rs:586:17
[INFO] [stderr]     |
[INFO] [stderr] 586 |         let mut is_pub = false;
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `name` is never read
[INFO] [stderr]    --> src/lib.rs:606:25
[INFO] [stderr]     |
[INFO] [stderr] 606 |                 let mut name = String::new();
[INFO] [stderr]     |                         ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ty` is never read
[INFO] [stderr]    --> src/lib.rs:620:29
[INFO] [stderr]     |
[INFO] [stderr] 620 |                     let mut ty = EmuType::Null;
[INFO] [stderr]     |                             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `is_vector` is never read
[INFO] [stderr]    --> src/lib.rs:621:29
[INFO] [stderr]     |
[INFO] [stderr] 621 |                     let mut is_vector = false;
[INFO] [stderr]     |                             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "4f156d37d33c61e76d54a4758fd680d5954deee04db216f1667467551625f13d"`
[INFO] running `"docker" "rm" "-f" "4f156d37d33c61e76d54a4758fd680d5954deee04db216f1667467551625f13d"`
[INFO] [stdout] 4f156d37d33c61e76d54a4758fd680d5954deee04db216f1667467551625f13d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/em/0.2.0:/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] c91bdcc8b98c5bdc698aed4d384b2907b1b1b58fa12aab586c210236e03e331b
[INFO] running `"docker" "start" "-a" "c91bdcc8b98c5bdc698aed4d384b2907b1b1b58fa12aab586c210236e03e331b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/em-2e3fbe5b8b00c38e
[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 em
[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" "c91bdcc8b98c5bdc698aed4d384b2907b1b1b58fa12aab586c210236e03e331b"`
[INFO] running `"docker" "rm" "-f" "c91bdcc8b98c5bdc698aed4d384b2907b1b1b58fa12aab586c210236e03e331b"`
[INFO] [stdout] c91bdcc8b98c5bdc698aed4d384b2907b1b1b58fa12aab586c210236e03e331b