[INFO] crate em 0.2.0 is already in cache
[INFO] testing em-0.2.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate em 0.2.0 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate em 0.2.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate em 0.2.0
[INFO] finished tweaking crates.io crate em 0.2.0
[INFO] tweaked toml for crates.io crate em 0.2.0 written to work/builds/worker-1/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 61ab81d219140a918d7af627bd131e9e0e616a12ad8a8deddd4957286937dab1
[INFO] running `"docker" "start" "-a" "61ab81d219140a918d7af627bd131e9e0e616a12ad8a8deddd4957286937dab1"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling em v0.2.0 (/opt/rustwide/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 11.01s
[INFO] running `"docker" "inspect" "61ab81d219140a918d7af627bd131e9e0e616a12ad8a8deddd4957286937dab1"`
[INFO] running `"docker" "rm" "-f" "61ab81d219140a918d7af627bd131e9e0e616a12ad8a8deddd4957286937dab1"`
[INFO] [stdout] 61ab81d219140a918d7af627bd131e9e0e616a12ad8a8deddd4957286937dab1
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] c3658e0eecdff68a32582fb5552d2e7e9c6c41e516ba7c56275f78f57a12c3ea
[INFO] running `"docker" "start" "-a" "c3658e0eecdff68a32582fb5552d2e7e9c6c41e516ba7c56275f78f57a12c3ea"`
[INFO] [stderr]    Compiling em v0.2.0 (/opt/rustwide/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 0.64s
[INFO] running `"docker" "inspect" "c3658e0eecdff68a32582fb5552d2e7e9c6c41e516ba7c56275f78f57a12c3ea"`
[INFO] running `"docker" "rm" "-f" "c3658e0eecdff68a32582fb5552d2e7e9c6c41e516ba7c56275f78f57a12c3ea"`
[INFO] [stdout] c3658e0eecdff68a32582fb5552d2e7e9c6c41e516ba7c56275f78f57a12c3ea
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 3b2f54c3d6fd8bce723f1445c62460a7b3dda3207c5222192975123659bf1a4e
[INFO] running `"docker" "start" "-a" "3b2f54c3d6fd8bce723f1445c62460a7b3dda3207c5222192975123659bf1a4e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/em-7d0342bfbcc94945
[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" "3b2f54c3d6fd8bce723f1445c62460a7b3dda3207c5222192975123659bf1a4e"`
[INFO] running `"docker" "rm" "-f" "3b2f54c3d6fd8bce723f1445c62460a7b3dda3207c5222192975123659bf1a4e"`
[INFO] [stdout] 3b2f54c3d6fd8bce723f1445c62460a7b3dda3207c5222192975123659bf1a4e