[INFO] fetching crate cache-macro 0.4.1...
[INFO] checking cache-macro-0.4.1 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate cache-macro 0.4.1 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate cache-macro 0.4.1 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cache-macro 0.4.1
[INFO] finished tweaking crates.io crate cache-macro 0.4.1
[INFO] tweaked toml for crates.io crate cache-macro 0.4.1 written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cb1aaa4680421f0f628445c30e341cbedb6fa7509b8ba22a437065d6f5c52bb
[INFO] running `Command { std: "docker" "start" "-a" "1cb1aaa4680421f0f628445c30e341cbedb6fa7509b8ba22a437065d6f5c52bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cb1aaa4680421f0f628445c30e341cbedb6fa7509b8ba22a437065d6f5c52bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb1aaa4680421f0f628445c30e341cbedb6fa7509b8ba22a437065d6f5c52bb", kill_on_drop: false }`
[INFO] [stdout] 1cb1aaa4680421f0f628445c30e341cbedb6fa7509b8ba22a437065d6f5c52bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee0eddf49e0fea5fb4569924078e2e34b1cb50398d233fdfd016aeb25017f49e
[INFO] running `Command { std: "docker" "start" "-a" "ee0eddf49e0fea5fb4569924078e2e34b1cb50398d233fdfd016aeb25017f49e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking expiring_map v0.1.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking cache-macro v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `proc_macro2`
[INFO] [stdout]  --> src/config.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use proc_macro2;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2`
[INFO] [stdout]  --> src/config.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use proc_macro2;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `extern_crate_item_prelude` has been stable since 1.31.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 | #![feature(extern_crate_item_prelude)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `extern_crate_item_prelude` has been stable since 1.31.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 | #![feature(extern_crate_item_prelude)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2`
[INFO] [stdout]  --> src/config.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use proc_macro2;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `extern_crate_item_prelude` has been stable since 1.31.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 | #![feature(extern_crate_item_prelude)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.25s
[INFO] running `Command { std: "docker" "inspect" "ee0eddf49e0fea5fb4569924078e2e34b1cb50398d233fdfd016aeb25017f49e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee0eddf49e0fea5fb4569924078e2e34b1cb50398d233fdfd016aeb25017f49e", kill_on_drop: false }`
[INFO] [stdout] ee0eddf49e0fea5fb4569924078e2e34b1cb50398d233fdfd016aeb25017f49e