[INFO] fetching crate event_iterator 0.2.2...
[INFO] checking event_iterator-0.2.2 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate event_iterator 0.2.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate event_iterator 0.2.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate event_iterator 0.2.2
[INFO] tweaked toml for crates.io crate event_iterator 0.2.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate event_iterator 0.2.2 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate event_iterator 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async_main v0.4.0
[INFO] [stderr]   Downloaded async_main_macro v0.4.0
[INFO] [stderr]   Downloaded pasts v0.14.3
[INFO] [stderr]   Downloaded whisk v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13d6c02bd475f024a1b496624c026d745a03ed1685bd301c3263916bd3b1a101
[INFO] running `Command { std: "docker" "start" "-a" "13d6c02bd475f024a1b496624c026d745a03ed1685bd301c3263916bd3b1a101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13d6c02bd475f024a1b496624c026d745a03ed1685bd301c3263916bd3b1a101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13d6c02bd475f024a1b496624c026d745a03ed1685bd301c3263916bd3b1a101", kill_on_drop: false }`
[INFO] [stdout] 13d6c02bd475f024a1b496624c026d745a03ed1685bd301c3263916bd3b1a101
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9e66a17dfac0e02bd6380492dd780beaec95e18c13d390bf4985b5d44fb1ecb
[INFO] running `Command { std: "docker" "start" "-a" "e9e66a17dfac0e02bd6380492dd780beaec95e18c13d390bf4985b5d44fb1ecb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling async_main_macro v0.4.0
[INFO] [stderr]     Checking pasts v0.14.3
[INFO] [stderr]     Checking whisk v0.13.0
[INFO] [stderr]     Checking event_iterator v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking async_main v0.4.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.53s
[INFO] running `Command { std: "docker" "inspect" "e9e66a17dfac0e02bd6380492dd780beaec95e18c13d390bf4985b5d44fb1ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9e66a17dfac0e02bd6380492dd780beaec95e18c13d390bf4985b5d44fb1ecb", kill_on_drop: false }`
[INFO] [stdout] e9e66a17dfac0e02bd6380492dd780beaec95e18c13d390bf4985b5d44fb1ecb