[INFO] fetching crate simple-interner 0.2.0...
[INFO] checking simple-interner-0.2.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate simple-interner 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate simple-interner 0.2.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple-interner 0.2.0
[INFO] finished tweaking crates.io crate simple-interner 0.2.0
[INFO] tweaked toml for crates.io crate simple-interner 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76cb21d942c9d6ed1976998b6e60b17ae5746b9ebb951f41ff26c445d346085e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "76cb21d942c9d6ed1976998b6e60b17ae5746b9ebb951f41ff26c445d346085e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76cb21d942c9d6ed1976998b6e60b17ae5746b9ebb951f41ff26c445d346085e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76cb21d942c9d6ed1976998b6e60b17ae5746b9ebb951f41ff26c445d346085e", kill_on_drop: false }`
[INFO] [stdout] 76cb21d942c9d6ed1976998b6e60b17ae5746b9ebb951f41ff26c445d346085e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 978aca76a54706d6b767af89df47be4432739f15df11fb8065214e45d361b38d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "978aca76a54706d6b767af89df47be4432739f15df11fb8065214e45d361b38d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking simple-interner v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
[INFO] [stdout]   --> src/interner.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use Interned;
[INFO] [stdout]    |     ^^^^^^^^ help: use `crate`: `crate::Interned`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:14:67
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![forbid(missing_debug_implementations, unconditional_recursion, future_incompatible)]
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[forbid(absolute_paths_not_starting_with_crate)]` implied by `#[forbid(future_incompatible)]`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
[INFO] [stdout]   --> src/interner.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use parking_lot_shim::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::parking_lot_shim::*`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub use interner::Interner;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::interner::Interner`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
[INFO] [stdout]   --> src/lib.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub use interned::Interned;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::interned::Interned`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
[INFO] [stdout]   --> src/interner.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use Interned;
[INFO] [stdout]    |     ^^^^^^^^ help: use `crate`: `crate::Interned`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:14:67
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![forbid(missing_debug_implementations, unconditional_recursion, future_incompatible)]
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[forbid(absolute_paths_not_starting_with_crate)]` implied by `#[forbid(future_incompatible)]`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
[INFO] [stdout]   --> src/interner.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use parking_lot_shim::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::parking_lot_shim::*`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub use interner::Interner;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::interner::Interner`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
[INFO] [stdout]   --> src/lib.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub use interned::Interned;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::interned::Interned`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple-interner`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "978aca76a54706d6b767af89df47be4432739f15df11fb8065214e45d361b38d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978aca76a54706d6b767af89df47be4432739f15df11fb8065214e45d361b38d", kill_on_drop: false }`
[INFO] [stdout] 978aca76a54706d6b767af89df47be4432739f15df11fb8065214e45d361b38d