[INFO] crate rustic_hal 0.2.0 is already in cache
[INFO] extracting crate rustic_hal 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/rustic_hal/0.2.0
[INFO] extracting crate rustic_hal 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustic_hal/0.2.0
[INFO] validating manifest of rustic_hal-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 rustic_hal-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 rustic_hal-0.2.0
[INFO] finished frobbing rustic_hal-0.2.0
[INFO] frobbed toml for rustic_hal-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rustic_hal/0.2.0/Cargo.toml
[INFO] started frobbing rustic_hal-0.2.0
[INFO] finished frobbing rustic_hal-0.2.0
[INFO] frobbed toml for rustic_hal-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustic_hal/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rustic_hal-0.2.0 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rustic_hal/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 878c87b2e16aa6e788c7a333fa5fd26b4dcb23b2b6b6a12817531f3a8a8be29b
[INFO] running `"docker" "start" "-a" "878c87b2e16aa6e788c7a333fa5fd26b4dcb23b2b6b6a12817531f3a8a8be29b"`
[INFO] [stderr]    Compiling rustic_hal v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/resource.rs:219:21
[INFO] [stderr]     |
[INFO] [stderr] 219 |                 let mut lk = OneOrMany::new();
[INFO] [stderr]     |                     ----^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/resource.rs:230:21
[INFO] [stderr]     |
[INFO] [stderr] 230 |                 let mut content = entry.get_mut(); //&mut HalLinks
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/resource.rs:266:21
[INFO] [stderr]     |
[INFO] [stderr] 266 |                 let mut content = entry.get_mut(); //&mut HalLinks
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/resource.rs:284:21
[INFO] [stderr]     |
[INFO] [stderr] 284 |                 let mut content = entry.get_mut(); //&mut HalLinks
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `"docker" "inspect" "878c87b2e16aa6e788c7a333fa5fd26b4dcb23b2b6b6a12817531f3a8a8be29b"`
[INFO] running `"docker" "rm" "-f" "878c87b2e16aa6e788c7a333fa5fd26b4dcb23b2b6b6a12817531f3a8a8be29b"`
[INFO] [stdout] 878c87b2e16aa6e788c7a333fa5fd26b4dcb23b2b6b6a12817531f3a8a8be29b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rustic_hal/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 00b5c40de72fd0ee517e2806169d007c68d7db8c26bfe52809cec28dd3268659
[INFO] running `"docker" "start" "-a" "00b5c40de72fd0ee517e2806169d007c68d7db8c26bfe52809cec28dd3268659"`
[INFO] [stderr]    Compiling rustic_hal v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `super::super::link::HalLink`
[INFO] [stderr]  --> src/tests/one_or_many.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use super::super::link::HalLink;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde::*`
[INFO] [stderr]  --> src/tests/one_or_many.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use serde::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `for<'d> T: serde::Deserialize<'d>` is not satisfied
[INFO] [stderr]   --> src/tests/one_or_many.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     oom: OneOrMany<T>
[INFO] [stderr]    |     ^^^ the trait `for<'d> serde::Deserialize<'d>` is not implemented for `T`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `where for<'d> T: serde::Deserialize<'d>` bound
[INFO] [stderr]    = note: required because of the requirements on the impl of `serde::Deserialize<'_>` for `resource::OneOrMany<T>`
[INFO] [stderr]    = note: required by `serde::de::SeqAccess::next_element`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `for<'d> T: serde::Deserialize<'d>` is not satisfied
[INFO] [stderr]   --> src/tests/one_or_many.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     oom: OneOrMany<T>
[INFO] [stderr]    |     ^^^ the trait `for<'d> serde::Deserialize<'d>` is not implemented for `T`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `where for<'d> T: serde::Deserialize<'d>` bound
[INFO] [stderr]    = note: required because of the requirements on the impl of `serde::Deserialize<'_>` for `resource::OneOrMany<T>`
[INFO] [stderr]    = note: required by `serde::de::MapAccess::next_value`
[INFO] [stderr] 
[INFO] [stderr] error[E0608]: cannot index into a value of type `resource::OneOrMany<std::string::String>`
[INFO] [stderr]   --> src/tests/one_or_many.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 |     assert_eq!("test", boh.oom[0]);
[INFO] [stderr]    |                        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0608]: cannot index into a value of type `resource::OneOrMany<std::string::String>`
[INFO] [stderr]   --> src/tests/one_or_many.rs:33:25
[INFO] [stderr]    |
[INFO] [stderr] 33 |     assert_eq!("test2", boh.oom[1]);
[INFO] [stderr]    |                         ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0608.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `rustic_hal`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "00b5c40de72fd0ee517e2806169d007c68d7db8c26bfe52809cec28dd3268659"`
[INFO] running `"docker" "rm" "-f" "00b5c40de72fd0ee517e2806169d007c68d7db8c26bfe52809cec28dd3268659"`
[INFO] [stdout] 00b5c40de72fd0ee517e2806169d007c68d7db8c26bfe52809cec28dd3268659