[INFO] crate link 0.1.0 is already in cache
[INFO] checking link-0.1.0 against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] extracting crate link 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate link 0.1.0 on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate link 0.1.0
[INFO] finished tweaking crates.io crate link 0.1.0
[INFO] tweaked toml for crates.io crate link 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e66aabbeb796514b82499b60659b1b45b88daa049054ef7ae4df55956a0cd4a
[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" "9e66aabbeb796514b82499b60659b1b45b88daa049054ef7ae4df55956a0cd4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e66aabbeb796514b82499b60659b1b45b88daa049054ef7ae4df55956a0cd4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e66aabbeb796514b82499b60659b1b45b88daa049054ef7ae4df55956a0cd4a", kill_on_drop: false }`
[INFO] [stdout] 9e66aabbeb796514b82499b60659b1b45b88daa049054ef7ae4df55956a0cd4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7250c24dae41cc41f753b3ee335ce95114b761319e5d478b543f59e6fdc35f5
[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" "e7250c24dae41cc41f753b3ee335ce95114b761319e5d478b543f59e6fdc35f5", kill_on_drop: false }`
[INFO] [stderr]     Checking field-offset v0.1.1
[INFO] [stderr]     Checking link v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type annotations needed
[INFO] [stdout]    --> src/lib.rs:113:64
[INFO] [stdout]     |
[INFO] [stdout] 113 |             unsafe { Some(data.offset.unapply_mut(self_mut_ptr.as_mut().unwrap())) }
[INFO] [stdout]     |                                                                ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(tyvar_behind_raw_pointer)]` on by default
[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 #46906 <https://github.com/rust-lang/rust/issues/46906>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type annotations needed
[INFO] [stdout]    --> src/lib.rs:113:64
[INFO] [stdout]     |
[INFO] [stdout] 113 |             unsafe { Some(data.offset.unapply_mut(self_mut_ptr.as_mut().unwrap())) }
[INFO] [stdout]     |                                                                ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(tyvar_behind_raw_pointer)]` on by default
[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 #46906 <https://github.com/rust-lang/rust/issues/46906>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type annotations needed
[INFO] [stdout]    --> src/lib.rs:130:71
[INFO] [stdout]     |
[INFO] [stdout] 130 |             unsafe { Some((&*(*data.target_obj).borrow() as *const _).as_ref().unwrap()) }
[INFO] [stdout]     |                                                                       ^^^^^^
[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 #46906 <https://github.com/rust-lang/rust/issues/46906>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type annotations needed
[INFO] [stdout]    --> src/lib.rs:139:77
[INFO] [stdout]     |
[INFO] [stdout] 139 |             unsafe { Some((&mut *(*data.target_obj).borrow_mut() as *mut _).as_mut().unwrap()) }
[INFO] [stdout]     |                                                                             ^^^^^^
[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 #46906 <https://github.com/rust-lang/rust/issues/46906>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type annotations needed
[INFO] [stdout]    --> src/lib.rs:130:71
[INFO] [stdout]     |
[INFO] [stdout] 130 |             unsafe { Some((&*(*data.target_obj).borrow() as *const _).as_ref().unwrap()) }
[INFO] [stdout]     |                                                                       ^^^^^^
[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 #46906 <https://github.com/rust-lang/rust/issues/46906>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type annotations needed
[INFO] [stdout]    --> src/lib.rs:139:77
[INFO] [stdout]     |
[INFO] [stdout] 139 |             unsafe { Some((&mut *(*data.target_obj).borrow_mut() as *mut _).as_mut().unwrap()) }
[INFO] [stdout]     |                                                                             ^^^^^^
[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 #46906 <https://github.com/rust-lang/rust/issues/46906>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "e7250c24dae41cc41f753b3ee335ce95114b761319e5d478b543f59e6fdc35f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7250c24dae41cc41f753b3ee335ce95114b761319e5d478b543f59e6fdc35f5", kill_on_drop: false }`
[INFO] [stdout] e7250c24dae41cc41f753b3ee335ce95114b761319e5d478b543f59e6fdc35f5