[INFO] fetching crate flo_stream 0.7.0...
[INFO] checking flo_stream-0.7.0 against master#75dbd5b8c3e3e3e7673caa890422e654d39b815e for pr-95985
[INFO] extracting crate flo_stream 0.7.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate flo_stream 0.7.0 on toolchain 75dbd5b8c3e3e3e7673caa890422e654d39b815e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flo_stream 0.7.0
[INFO] finished tweaking crates.io crate flo_stream 0.7.0
[INFO] tweaked toml for crates.io crate flo_stream 0.7.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate flo_stream 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "fetch" "--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 futures v0.3.12
[INFO] [stderr]   Downloaded futures-macro v0.3.12
[INFO] [stderr]   Downloaded futures-executor v0.3.12
[INFO] [stderr]   Downloaded futures-sink v0.3.12
[INFO] [stderr]   Downloaded desync v0.7.0
[INFO] [stderr]   Downloaded libc v0.2.84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cefa1cd711c9807aa2acb9e80d7c5a3511ca4c50b7da67d2205447776512808
[INFO] running `Command { std: "docker" "start" "-a" "3cefa1cd711c9807aa2acb9e80d7c5a3511ca4c50b7da67d2205447776512808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cefa1cd711c9807aa2acb9e80d7c5a3511ca4c50b7da67d2205447776512808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cefa1cd711c9807aa2acb9e80d7c5a3511ca4c50b7da67d2205447776512808", kill_on_drop: false }`
[INFO] [stdout] 3cefa1cd711c9807aa2acb9e80d7c5a3511ca4c50b7da67d2205447776512808
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 400baf1be14563ccaebe93dac69535862d0af88ed5b0bc565f00e460547e8986
[INFO] running `Command { std: "docker" "start" "-a" "400baf1be14563ccaebe93dac69535862d0af88ed5b0bc565f00e460547e8986", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking desync v0.7.0
[INFO] [stderr]     Checking flo_stream v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.64s
[INFO] running `Command { std: "docker" "inspect" "400baf1be14563ccaebe93dac69535862d0af88ed5b0bc565f00e460547e8986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "400baf1be14563ccaebe93dac69535862d0af88ed5b0bc565f00e460547e8986", kill_on_drop: false }`
[INFO] [stdout] 400baf1be14563ccaebe93dac69535862d0af88ed5b0bc565f00e460547e8986