[INFO] crate an 0.0.2 is already in cache
[INFO] extracting crate an 0.0.2 into work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/reg/an/0.0.2
[INFO] extracting crate an 0.0.2 into work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/reg/an/0.0.2
[INFO] validating manifest of an-0.0.2 on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of an-0.0.2 on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing an-0.0.2
[INFO] finished frobbing an-0.0.2
[INFO] frobbed toml for an-0.0.2 written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/reg/an/0.0.2/Cargo.toml
[INFO] started frobbing an-0.0.2
[INFO] finished frobbing an-0.0.2
[INFO] frobbed toml for an-0.0.2 written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/reg/an/0.0.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking an-0.0.2 against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-2/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/reg/an/0.0.2:/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" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e7bad02c53caa7754fd5edcf46c37209076f926a645477806c47a1ff7ba552a8
[INFO] running `"docker" "start" "-a" "e7bad02c53caa7754fd5edcf46c37209076f926a645477806c47a1ff7ba552a8"`
[INFO] [stderr]     Checking an v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]  --> src/lib.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[experimental]
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr]   = help: add #![feature(custom_attribute)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Str` in this scope
[INFO] [stderr]  --> src/lib.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn a<S: Str>(word: S) -> bool {
[INFO] [stderr]   |             ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Str` in this scope
[INFO] [stderr]   --> src/lib.rs:34:14
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn an<S: Str>(word: S) -> bool {
[INFO] [stderr]    |              ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `an`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]  --> src/lib.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[experimental]
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr]   = help: add #![feature(custom_attribute)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Str` in this scope
[INFO] [stderr]  --> src/lib.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn a<S: Str>(word: S) -> bool {
[INFO] [stderr]   |             ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Str` in this scope
[INFO] [stderr]   --> src/lib.rs:34:14
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn an<S: Str>(word: S) -> bool {
[INFO] [stderr]    |              ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `an`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e7bad02c53caa7754fd5edcf46c37209076f926a645477806c47a1ff7ba552a8"`
[INFO] running `"docker" "rm" "-f" "e7bad02c53caa7754fd5edcf46c37209076f926a645477806c47a1ff7ba552a8"`
[INFO] [stdout] e7bad02c53caa7754fd5edcf46c37209076f926a645477806c47a1ff7ba552a8