[INFO] crate mscorlib_safe_derive 0.1.3 is already in cache
[INFO] testing mscorlib_safe_derive-0.1.3 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate mscorlib_safe_derive 0.1.3 into work/builds/worker-8/source
[INFO] validating manifest of crates.io crate mscorlib_safe_derive 0.1.3 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 mscorlib_safe_derive 0.1.3
[INFO] finished tweaking crates.io crate mscorlib_safe_derive 0.1.3
[INFO] tweaked toml for crates.io crate mscorlib_safe_derive 0.1.3 written to work/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/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] b42fa87a358172562d5e4e477b1f37e6b6f75cff209307f55d49495bf14d034d
[INFO] running `"docker" "start" "-a" "b42fa87a358172562d5e4e477b1f37e6b6f75cff209307f55d49495bf14d034d"`
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling mscorlib_safe_derive v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:56:21
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 let mut expanded = quote! {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 3.87s
[INFO] running `"docker" "inspect" "b42fa87a358172562d5e4e477b1f37e6b6f75cff209307f55d49495bf14d034d"`
[INFO] running `"docker" "rm" "-f" "b42fa87a358172562d5e4e477b1f37e6b6f75cff209307f55d49495bf14d034d"`
[INFO] [stdout] b42fa87a358172562d5e4e477b1f37e6b6f75cff209307f55d49495bf14d034d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/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] 61f77f620ac8e8d3e07170839c7edad6271943d9337357aab2f94cdd1449d991
[INFO] running `"docker" "start" "-a" "61f77f620ac8e8d3e07170839c7edad6271943d9337357aab2f94cdd1449d991"`
[INFO] [stderr]    Compiling mscorlib_safe_derive v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:56:21
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 let mut expanded = quote! {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `"docker" "inspect" "61f77f620ac8e8d3e07170839c7edad6271943d9337357aab2f94cdd1449d991"`
[INFO] running `"docker" "rm" "-f" "61f77f620ac8e8d3e07170839c7edad6271943d9337357aab2f94cdd1449d991"`
[INFO] [stdout] 61f77f620ac8e8d3e07170839c7edad6271943d9337357aab2f94cdd1449d991
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/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] 677965913fab5791da22e24d1ceab83f457dbcc1f95e19b52f9917f8d939bb62
[INFO] running `"docker" "start" "-a" "677965913fab5791da22e24d1ceab83f457dbcc1f95e19b52f9917f8d939bb62"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mscorlib_safe_derive-ccda53509a153501
[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 mscorlib_safe_derive
[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" "677965913fab5791da22e24d1ceab83f457dbcc1f95e19b52f9917f8d939bb62"`
[INFO] running `"docker" "rm" "-f" "677965913fab5791da22e24d1ceab83f457dbcc1f95e19b52f9917f8d939bb62"`
[INFO] [stdout] 677965913fab5791da22e24d1ceab83f457dbcc1f95e19b52f9917f8d939bb62