[INFO] fetching crate heph-inbox 0.2.1...
[INFO] checking heph-inbox-0.2.1 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate heph-inbox 0.2.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate heph-inbox 0.2.1 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate heph-inbox 0.2.1
[INFO] finished tweaking crates.io crate heph-inbox 0.2.1
[INFO] tweaked toml for crates.io crate heph-inbox 0.2.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aad0ad1cdd266c33331547b053ecd51f7230540eaa603a114916fb67c63858c1
[INFO] running `Command { std: "docker" "start" "-a" "aad0ad1cdd266c33331547b053ecd51f7230540eaa603a114916fb67c63858c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aad0ad1cdd266c33331547b053ecd51f7230540eaa603a114916fb67c63858c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aad0ad1cdd266c33331547b053ecd51f7230540eaa603a114916fb67c63858c1", kill_on_drop: false }`
[INFO] [stdout] aad0ad1cdd266c33331547b053ecd51f7230540eaa603a114916fb67c63858c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17731a2d9251ac3964c390fe880f4e3311f9482ed7fec3015015caeff254ea54
[INFO] running `Command { std: "docker" "start" "-a" "17731a2d9251ac3964c390fe880f4e3311f9482ed7fec3015015caeff254ea54", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking heph-inbox v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `maybe_uninit_ref` has been stable since 1.55.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:57:46
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![feature(cfg_sanitize, maybe_uninit_extra, maybe_uninit_ref)]
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking futures-test v0.3.15
[INFO] [stdout] error: the feature `maybe_uninit_ref` has been stable since 1.55.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:57:46
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![feature(cfg_sanitize, maybe_uninit_extra, maybe_uninit_ref)]
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:65:24
[INFO] [stdout]    |
[INFO] [stdout] 65 | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(stable_features)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `heph-inbox`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "17731a2d9251ac3964c390fe880f4e3311f9482ed7fec3015015caeff254ea54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17731a2d9251ac3964c390fe880f4e3311f9482ed7fec3015015caeff254ea54", kill_on_drop: false }`
[INFO] [stdout] 17731a2d9251ac3964c390fe880f4e3311f9482ed7fec3015015caeff254ea54