[INFO] crate enum-tryfrom-derive 0.2.1 is already in cache
[INFO] extracting crate enum-tryfrom-derive 0.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/enum-tryfrom-derive/0.2.1
[INFO] extracting crate enum-tryfrom-derive 0.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/enum-tryfrom-derive/0.2.1
[INFO] validating manifest of enum-tryfrom-derive-0.2.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of enum-tryfrom-derive-0.2.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing enum-tryfrom-derive-0.2.1
[INFO] finished frobbing enum-tryfrom-derive-0.2.1
[INFO] frobbed toml for enum-tryfrom-derive-0.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/enum-tryfrom-derive/0.2.1/Cargo.toml
[INFO] started frobbing enum-tryfrom-derive-0.2.1
[INFO] finished frobbing enum-tryfrom-derive-0.2.1
[INFO] frobbed toml for enum-tryfrom-derive-0.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/enum-tryfrom-derive/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing enum-tryfrom-derive-0.2.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/enum-tryfrom-derive/0.2.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d2313f3d4217eddcc7c022175fddde7179f3a8781edde8ba151d8c3726dd71f2
[INFO] running `"docker" "start" "-a" "d2313f3d4217eddcc7c022175fddde7179f3a8781edde8ba151d8c3726dd71f2"`
[INFO] [stderr]    Compiling enum-tryfrom-derive v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "d2313f3d4217eddcc7c022175fddde7179f3a8781edde8ba151d8c3726dd71f2"`
[INFO] running `"docker" "rm" "-f" "d2313f3d4217eddcc7c022175fddde7179f3a8781edde8ba151d8c3726dd71f2"`
[INFO] [stdout] d2313f3d4217eddcc7c022175fddde7179f3a8781edde8ba151d8c3726dd71f2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/enum-tryfrom-derive/0.2.1:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 55e643405fdfc938ffba3fc65e62c9d9d31f126e820079d34a4686904b29193b
[INFO] running `"docker" "start" "-a" "55e643405fdfc938ffba3fc65e62c9d9d31f126e820079d34a4686904b29193b"`
[INFO] [stderr]    Compiling enum-tryfrom v0.2.1
[INFO] [stderr]    Compiling enum-tryfrom-derive v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "55e643405fdfc938ffba3fc65e62c9d9d31f126e820079d34a4686904b29193b"`
[INFO] running `"docker" "rm" "-f" "55e643405fdfc938ffba3fc65e62c9d9d31f126e820079d34a4686904b29193b"`
[INFO] [stdout] 55e643405fdfc938ffba3fc65e62c9d9d31f126e820079d34a4686904b29193b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/enum-tryfrom-derive/0.2.1:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 21809f4b069923fb102364db1f6d94e435ea5aef09748d7268a5ec9e46d1c886
[INFO] running `"docker" "start" "-a" "21809f4b069923fb102364db1f6d94e435ea5aef09748d7268a5ec9e46d1c886"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/enum_tryfrom_derive-7f7d95803f949892
[INFO] [stderr]    Doc-tests enum-tryfrom-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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - from_primitive (line 82) ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - from_primitive (line 82) stdout ----
[INFO] [stdout] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:83:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(try_from)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - from_primitive (line 82)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "21809f4b069923fb102364db1f6d94e435ea5aef09748d7268a5ec9e46d1c886"`
[INFO] running `"docker" "rm" "-f" "21809f4b069923fb102364db1f6d94e435ea5aef09748d7268a5ec9e46d1c886"`
[INFO] [stdout] 21809f4b069923fb102364db1f6d94e435ea5aef09748d7268a5ec9e46d1c886