[INFO] crate fastdl 0.2.0 is already in cache
[INFO] extracting crate fastdl 0.2.0 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/fastdl/0.2.0
[INFO] extracting crate fastdl 0.2.0 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/fastdl/0.2.0
[INFO] validating manifest of fastdl-0.2.0 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fastdl-0.2.0 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fastdl-0.2.0
[INFO] finished frobbing fastdl-0.2.0
[INFO] frobbed toml for fastdl-0.2.0 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/fastdl/0.2.0/Cargo.toml
[INFO] started frobbing fastdl-0.2.0
[INFO] finished frobbing fastdl-0.2.0
[INFO] frobbed toml for fastdl-0.2.0 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/fastdl/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building fastdl-0.2.0 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/fastdl/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] b4685e8917f5f411c4ce875341751a7ddcdcda3cc920b7ae1b558986d1a78d33
[INFO] running `"docker" "start" "-a" "b4685e8917f5f411c4ce875341751a7ddcdcda3cc920b7ae1b558986d1a78d33"`
[INFO] [stderr]    Compiling fastdl v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::mem::transmute`
[INFO] [stderr]  --> src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::mem::transmute;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filename`
[INFO] [stderr]   --> src/lib.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(filename: &str) -> Result<Library<'a>> {
[INFO] [stderr]    |                ^^^^^^^^ help: consider prefixing with an underscore: `_filename`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `symbol`
[INFO] [stderr]   --> src/lib.rs:17:40
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub unsafe fn get<T>(&'a mut self, symbol: &'a str) -> Result<&'a libloading::Symbol<'a, T>> {
[INFO] [stderr]    |                                        ^^^^^^ help: consider prefixing with an underscore: `_symbol`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `lib`
[INFO] [stderr]  --> src/lib.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     lib: libloading::Library,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `fn_map`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn_map: HashMap<&'a str, libloading::Symbol<'a, *const ()>>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "b4685e8917f5f411c4ce875341751a7ddcdcda3cc920b7ae1b558986d1a78d33"`
[INFO] running `"docker" "rm" "-f" "b4685e8917f5f411c4ce875341751a7ddcdcda3cc920b7ae1b558986d1a78d33"`
[INFO] [stdout] b4685e8917f5f411c4ce875341751a7ddcdcda3cc920b7ae1b558986d1a78d33
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/fastdl/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 20f78b10dbfec21e09aeb5e255e04f58ea2fe2029abaab64b6575fafd7efd43a
[INFO] running `"docker" "start" "-a" "20f78b10dbfec21e09aeb5e255e04f58ea2fe2029abaab64b6575fafd7efd43a"`
[INFO] [stderr]    Compiling fastdl v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::mem::transmute`
[INFO] [stderr]  --> src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::mem::transmute;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filename`
[INFO] [stderr]   --> src/lib.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(filename: &str) -> Result<Library<'a>> {
[INFO] [stderr]    |                ^^^^^^^^ help: consider prefixing with an underscore: `_filename`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `symbol`
[INFO] [stderr]   --> src/lib.rs:17:40
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub unsafe fn get<T>(&'a mut self, symbol: &'a str) -> Result<&'a libloading::Symbol<'a, T>> {
[INFO] [stderr]    |                                        ^^^^^^ help: consider prefixing with an underscore: `_symbol`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `lib`
[INFO] [stderr]  --> src/lib.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     lib: libloading::Library,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `fn_map`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn_map: HashMap<&'a str, libloading::Symbol<'a, *const ()>>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "20f78b10dbfec21e09aeb5e255e04f58ea2fe2029abaab64b6575fafd7efd43a"`
[INFO] running `"docker" "rm" "-f" "20f78b10dbfec21e09aeb5e255e04f58ea2fe2029abaab64b6575fafd7efd43a"`
[INFO] [stdout] 20f78b10dbfec21e09aeb5e255e04f58ea2fe2029abaab64b6575fafd7efd43a