[INFO] crate sf 0.1.1 is already in cache
[INFO] extracting crate sf 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/sf/0.1.1
[INFO] extracting crate sf 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sf/0.1.1
[INFO] validating manifest of sf-0.1.1 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 sf-0.1.1 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 sf-0.1.1
[INFO] removed 2 missing examples
[INFO] finished frobbing sf-0.1.1
[INFO] frobbed toml for sf-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/sf/0.1.1/Cargo.toml
[INFO] started frobbing sf-0.1.1
[INFO] removed 2 missing examples
[INFO] finished frobbing sf-0.1.1
[INFO] frobbed toml for sf-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sf/0.1.1/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 sf-0.1.1 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/sf/0.1.1:/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] fdccc18bfde440367e9dbbcd29b35b4a9bafb76cd02f5d4e54b6b4345e42e76e
[INFO] running `"docker" "start" "-a" "fdccc18bfde440367e9dbbcd29b35b4a9bafb76cd02f5d4e54b6b4345e42e76e"`
[INFO] [stderr]    Compiling sf v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:21:32
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "fdccc18bfde440367e9dbbcd29b35b4a9bafb76cd02f5d4e54b6b4345e42e76e"`
[INFO] running `"docker" "rm" "-f" "fdccc18bfde440367e9dbbcd29b35b4a9bafb76cd02f5d4e54b6b4345e42e76e"`
[INFO] [stdout] fdccc18bfde440367e9dbbcd29b35b4a9bafb76cd02f5d4e54b6b4345e42e76e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/sf/0.1.1:/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] c6f12347746cd54f92889b7622156e45f98b28cb6ff2aec8fdc3653f2d472497
[INFO] running `"docker" "start" "-a" "c6f12347746cd54f92889b7622156e45f98b28cb6ff2aec8fdc3653f2d472497"`
[INFO] [stderr]    Compiling sf v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:21:32
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `sf::Id` doesn't implement `std::fmt::Display`
[INFO] [stderr]   --> examples/id.rs:14:36
[INFO] [stderr]    |
[INFO] [stderr] 14 |     println!("x: {}, id_x: {}", x, id_x);
[INFO] [stderr]    |                                    ^^^^ `sf::Id` cannot be formatted with the default formatter
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Display` is not implemented for `sf::Id`
[INFO] [stderr]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stderr]    = note: required by `std::fmt::Display::fmt`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `sf::Id` doesn't implement `std::fmt::Display`
[INFO] [stderr]   --> examples/id.rs:15:36
[INFO] [stderr]    |
[INFO] [stderr] 15 |     println!("y: {}, id_y: {}", y, id_y);
[INFO] [stderr]    |                                    ^^^^ `sf::Id` cannot be formatted with the default formatter
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Display` is not implemented for `sf::Id`
[INFO] [stderr]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stderr]    = note: required by `std::fmt::Display::fmt`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `sf::Id` doesn't implement `std::fmt::Display`
[INFO] [stderr]   --> examples/id.rs:16:36
[INFO] [stderr]    |
[INFO] [stderr] 16 |     println!("z: {}, id_z: {}", z, id_z);
[INFO] [stderr]    |                                    ^^^^ `sf::Id` cannot be formatted with the default formatter
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Display` is not implemented for `sf::Id`
[INFO] [stderr]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stderr]    = note: required by `std::fmt::Display::fmt`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `sf`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: `sf::Id` doesn't implement `std::fmt::Display`
[INFO] [stderr]   --> examples/ctx.rs:11:30
[INFO] [stderr]    |
[INFO] [stderr] 11 |         println!("id0 = {}", id0);
[INFO] [stderr]    |                              ^^^ `sf::Id` cannot be formatted with the default formatter
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Display` is not implemented for `sf::Id`
[INFO] [stderr]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stderr]    = note: required by `std::fmt::Display::fmt`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `sf::Id` doesn't implement `std::fmt::Display`
[INFO] [stderr]   --> examples/ctx.rs:14:30
[INFO] [stderr]    |
[INFO] [stderr] 14 |         println!("id1 = {}", id1);
[INFO] [stderr]    |                              ^^^ `sf::Id` cannot be formatted with the default formatter
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Display` is not implemented for `sf::Id`
[INFO] [stderr]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stderr]    = note: required by `std::fmt::Display::fmt`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `sf`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c6f12347746cd54f92889b7622156e45f98b28cb6ff2aec8fdc3653f2d472497"`
[INFO] running `"docker" "rm" "-f" "c6f12347746cd54f92889b7622156e45f98b28cb6ff2aec8fdc3653f2d472497"`
[INFO] [stdout] c6f12347746cd54f92889b7622156e45f98b28cb6ff2aec8fdc3653f2d472497