[INFO] crate tor_control 0.2.0 is already in cache
[INFO] extracting crate tor_control 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/tor_control/0.2.0
[INFO] extracting crate tor_control 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tor_control/0.2.0
[INFO] validating manifest of tor_control-0.2.0 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 tor_control-0.2.0 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 tor_control-0.2.0
[INFO] finished frobbing tor_control-0.2.0
[INFO] frobbed toml for tor_control-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tor_control/0.2.0/Cargo.toml
[INFO] started frobbing tor_control-0.2.0
[INFO] finished frobbing tor_control-0.2.0
[INFO] frobbed toml for tor_control-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tor_control/0.2.0/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 tor_control-0.2.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tor_control/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=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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 22aee75d70dc98561fe4b0c746904098380058254e152552f6005dee2ac34842
[INFO] running `"docker" "start" "-a" "22aee75d70dc98561fe4b0c746904098380058254e152552f6005dee2ac34842"`
[INFO] [stderr]    Compiling tor_control v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stderr]    --> src/lib.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     type Err = ();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | #![feature(try_from)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:250:32
[INFO] [stderr]     |
[INFO] [stderr] 250 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:298:32
[INFO] [stderr]     |
[INFO] [stderr] 298 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error[E0046]: not all trait items implemented, missing: `Error`
[INFO] [stderr]    --> src/lib.rs:179:1
[INFO] [stderr]     |
[INFO] [stderr] 179 | impl TryFrom<u32> for TCErrorKind {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Error` in implementation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Error` from trait: `type Error;`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]    --> src/lib.rs:419:26
[INFO] [stderr]     |
[INFO] [stderr] 419 |             rls.push(msg.trim_right().to_owned());
[INFO] [stderr]     |                          ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]     --> src/lib.rs:1032:26
[INFO] [stderr]      |
[INFO] [stderr] 1032 |             rls.push(msg.trim_right().to_owned());
[INFO] [stderr]      |                          ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0046, E0437, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0046`.
[INFO] [stderr] error: Could not compile `tor_control`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "22aee75d70dc98561fe4b0c746904098380058254e152552f6005dee2ac34842"`
[INFO] running `"docker" "rm" "-f" "22aee75d70dc98561fe4b0c746904098380058254e152552f6005dee2ac34842"`
[INFO] [stdout] 22aee75d70dc98561fe4b0c746904098380058254e152552f6005dee2ac34842