[INFO] updating cached repository ed-bassett/httptest [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/ed-bassett/httptest [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/ed-bassett/httptest" "work/ex/beta-1.37-6/sources/1.36.0/gh/ed-bassett/httptest"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ed-bassett/httptest'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ed-bassett/httptest" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ed-bassett/httptest"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ed-bassett/httptest'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 1e4bc9e899373a3e1101e6b1286fc789986e05e1 [INFO] sha for GitHub repo ed-bassett/httptest: 1e4bc9e899373a3e1101e6b1286fc789986e05e1 [INFO] validating manifest of ed-bassett/httptest 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 ed-bassett/httptest 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 ed-bassett/httptest [INFO] finished frobbing ed-bassett/httptest [INFO] frobbed toml for ed-bassett/httptest written to work/ex/beta-1.37-6/sources/1.36.0/gh/ed-bassett/httptest/Cargo.toml [INFO] started frobbing ed-bassett/httptest [INFO] finished frobbing ed-bassett/httptest [INFO] frobbed toml for ed-bassett/httptest written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ed-bassett/httptest/Cargo.toml [INFO] crate ed-bassett/httptest 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 ed-bassett/httptest 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ed-bassett/httptest:/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] e5fdbe1a83f0a8e8e338b7e76fb4df139b2a0db6fa6b299f6091969a346fa6f3 [INFO] running `"docker" "start" "-a" "e5fdbe1a83f0a8e8e338b7e76fb4df139b2a0db6fa6b299f6091969a346fa6f3"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Compiling string v0.1.2 [INFO] [stderr] Compiling crossbeam-epoch v0.6.1 [INFO] [stderr] Compiling tokio-timer v0.2.8 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling memchr v2.1.3 [INFO] [stderr] Compiling time v0.1.40 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling parking_lot_core v0.3.1 [INFO] [stderr] Compiling bytes v0.4.11 [INFO] [stderr] Compiling mio v0.6.16 [INFO] [stderr] Compiling crossbeam-deque v0.6.2 [INFO] [stderr] Compiling aho-corasick v0.6.9 [INFO] [stderr] Compiling parking_lot v0.6.4 [INFO] [stderr] Compiling tokio-io v0.1.10 [INFO] [stderr] Compiling http v0.1.15 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Compiling tokio-threadpool v0.1.9 [INFO] [stderr] Compiling tokio-reactor v0.1.7 [INFO] [stderr] Compiling tokio-tcp v0.1.2 [INFO] [stderr] Compiling tokio v0.1.14 [INFO] [stderr] Compiling env_logger v0.6.0 [INFO] [stderr] Compiling h2 v0.1.15 [INFO] [stderr] Compiling hyper v0.12.22 [INFO] [stderr] Compiling httptest v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash [INFO] [stderr] --> src/main.rs:2:12 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(impl_trait_in_bindings)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(box_syntax)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/main.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(impl_trait_in_bindings)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `warn` [INFO] [stderr] --> src/main.rs:4:25 [INFO] [stderr] | [INFO] [stderr] 4 | use log::{ info, trace, warn, error }; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `httptest`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "e5fdbe1a83f0a8e8e338b7e76fb4df139b2a0db6fa6b299f6091969a346fa6f3"` [INFO] running `"docker" "rm" "-f" "e5fdbe1a83f0a8e8e338b7e76fb4df139b2a0db6fa6b299f6091969a346fa6f3"` [INFO] [stdout] e5fdbe1a83f0a8e8e338b7e76fb4df139b2a0db6fa6b299f6091969a346fa6f3