[INFO] fetching crate rustc-ap-rustc_session 688.0.0...
[INFO] checking rustc-ap-rustc_session-688.0.0 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate rustc-ap-rustc_session 688.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate rustc-ap-rustc_session 688.0.0 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustc-ap-rustc_session 688.0.0
[INFO] finished tweaking crates.io crate rustc-ap-rustc_session 688.0.0
[INFO] tweaked toml for crates.io crate rustc-ap-rustc_session 688.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_index v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_span v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_macros v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_graphviz v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_arena v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_fs_util v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_serialize v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_feature v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v688.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lint_defs v688.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c334a2145e75394958393c7b17f6548c100af303d24cb4f8750afe442c80ae5d
[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" "c334a2145e75394958393c7b17f6548c100af303d24cb4f8750afe442c80ae5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c334a2145e75394958393c7b17f6548c100af303d24cb4f8750afe442c80ae5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c334a2145e75394958393c7b17f6548c100af303d24cb4f8750afe442c80ae5d", kill_on_drop: false }`
[INFO] [stdout] c334a2145e75394958393c7b17f6548c100af303d24cb4f8750afe442c80ae5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ae9cf433928525d83beab68bedfb6b94c5725df4b52312c931452df6f60b716c
[INFO] running `Command { std: "docker" "start" "-a" "ae9cf433928525d83beab68bedfb6b94c5725df4b52312c931452df6f60b716c", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-ap-rustc_graphviz v688.0.0
[INFO] [stderr]     Checking annotate-snippets v0.8.0
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v688.0.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v688.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_arena v688.0.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking ena v0.14.0
[INFO] [stderr]     Checking rustc-ap-rustc_serialize v688.0.0
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v688.0.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking measureme v9.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_index v688.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v688.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_span v688.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_ast v688.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_feature v688.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_target v688.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_lint_defs v688.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v688.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_session v688.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.12s
[INFO] running `Command { std: "docker" "inspect" "ae9cf433928525d83beab68bedfb6b94c5725df4b52312c931452df6f60b716c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae9cf433928525d83beab68bedfb6b94c5725df4b52312c931452df6f60b716c", kill_on_drop: false }`
[INFO] [stdout] ae9cf433928525d83beab68bedfb6b94c5725df4b52312c931452df6f60b716c