[INFO] updating cached repository https://github.com/wusyong/smol-attributes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a3ffee0ca34135bbae1f853b91fd6f0c68b3bce
[INFO] checking wusyong/smol-attributes against master#e22b61bff0bdd08be7665607cb7be3748c8a35d2 for pr-74627
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwusyong%2Fsmol-attributes" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wusyong/smol-attributes on toolchain e22b61bff0bdd08be7665607cb7be3748c8a35d2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wusyong/smol-attributes
[INFO] removed workspace from git repo https://github.com/wusyong/smol-attributes
[INFO] removed path dependency smol-potat-macro from git repo https://github.com/wusyong/smol-attributes
[INFO] finished tweaking git repo https://github.com/wusyong/smol-attributes
[INFO] tweaked toml for git repo https://github.com/wusyong/smol-attributes written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "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" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "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 async-io v0.1.9
[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" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b04139955e009a2882cde3a7631d163a0c653406736b3e62af9c812b6c462f79
[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" "b04139955e009a2882cde3a7631d163a0c653406736b3e62af9c812b6c462f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b04139955e009a2882cde3a7631d163a0c653406736b3e62af9c812b6c462f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b04139955e009a2882cde3a7631d163a0c653406736b3e62af9c812b6c462f79", kill_on_drop: false }`
[INFO] [stdout] b04139955e009a2882cde3a7631d163a0c653406736b3e62af9c812b6c462f79
[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" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4b20419dde07c9ce88a5c9294dd59b6245339e87e076f0c4b8c5c3df1f43373
[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" "f4b20419dde07c9ce88a5c9294dd59b6245339e87e076f0c4b8c5c3df1f43373", kill_on_drop: false }`
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking fastrand v1.3.3
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking parking v1.0.6
[INFO] [stderr]     Checking waker-fn v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking event-listener v2.3.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking vec-arena v0.5.0
[INFO] [stderr]     Checking concurrent-queue v1.2.0
[INFO] [stderr]     Checking futures-lite v0.1.10
[INFO] [stderr]     Checking async-channel v1.4.0
[INFO] [stderr]     Checking multitask v0.2.0
[INFO] [stderr]     Checking blocking v0.4.7
[INFO] [stderr]     Checking blocking v0.5.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking async-io v0.1.9
[INFO] [stderr]     Checking async-net v0.1.2
[INFO] [stderr]     Checking smol v0.2.0
[INFO] [stderr]    Compiling smol-potat-macro v0.2.0
[INFO] [stderr]     Checking smol-potat v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.25s
[INFO] running `Command { std: "docker" "inspect" "f4b20419dde07c9ce88a5c9294dd59b6245339e87e076f0c4b8c5c3df1f43373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4b20419dde07c9ce88a5c9294dd59b6245339e87e076f0c4b8c5c3df1f43373", kill_on_drop: false }`
[INFO] [stdout] f4b20419dde07c9ce88a5c9294dd59b6245339e87e076f0c4b8c5c3df1f43373