[INFO] fetching crate zoomies 0.1.0...
[INFO] checking zoomies-0.1.0 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate zoomies 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate zoomies 0.1.0 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zoomies 0.1.0
[INFO] finished tweaking crates.io crate zoomies 0.1.0
[INFO] tweaked toml for crates.io crate zoomies 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate zoomies 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blocking v0.5.2
[INFO] [stderr]   Downloaded wepoll-sys-stjepang v1.0.6
[INFO] [stderr]   Downloaded async-mutex v1.2.0
[INFO] [stderr]   Downloaded atomic-waker v1.0.0
[INFO] [stderr]   Downloaded kv-log-macro v1.0.7
[INFO] [stderr]   Downloaded waker-fn v1.1.0
[INFO] [stderr]   Downloaded multitask v0.2.0
[INFO] [stderr]   Downloaded polling v0.1.8
[INFO] [stderr]   Downloaded scoped-tls v1.0.0
[INFO] [stderr]   Downloaded vec-arena v0.5.2
[INFO] [stderr]   Downloaded fastrand v1.3.5
[INFO] [stderr]   Downloaded js-sys v0.3.44
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.67
[INFO] [stderr]   Downloaded chrono v0.4.15
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.67
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.67
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.67
[INFO] [stderr]   Downloaded syn v1.0.40
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.67
[INFO] [stderr]   Downloaded parking v1.0.6
[INFO] [stderr]   Downloaded async-executor v0.1.2
[INFO] [stderr]   Downloaded async-std v1.6.3
[INFO] [stderr]   Downloaded futures-channel v0.3.5
[INFO] [stderr]   Downloaded libc v0.2.76
[INFO] [stderr]   Downloaded futures-lite v0.1.11
[INFO] [stderr]   Downloaded pin-project-lite v0.1.7
[INFO] [stderr]   Downloaded proc-macro2 v1.0.20
[INFO] [stderr]   Downloaded web-sys v0.3.44
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.17
[INFO] [stderr]   Downloaded async-io v0.1.11
[INFO] [stderr]   Downloaded async-task v3.0.0
[INFO] [stderr]   Downloaded cache-padded v1.1.1
[INFO] [stderr]   Downloaded concurrent-queue v1.2.2
[INFO] [stderr]   Downloaded event-listener v2.4.0
[INFO] [stderr]   Downloaded async-channel v1.4.2
[INFO] [stderr]   Downloaded futures-core v0.3.5
[INFO] [stderr]   Downloaded futures-io v0.3.5
[INFO] [stderr]   Downloaded parking v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d947bddc793957a5f77ba980ffb58de3a2e23c266f7c8eb689b9a2fdba728bc
[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" "7d947bddc793957a5f77ba980ffb58de3a2e23c266f7c8eb689b9a2fdba728bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d947bddc793957a5f77ba980ffb58de3a2e23c266f7c8eb689b9a2fdba728bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d947bddc793957a5f77ba980ffb58de3a2e23c266f7c8eb689b9a2fdba728bc", kill_on_drop: false }`
[INFO] [stdout] 7d947bddc793957a5f77ba980ffb58de3a2e23c266f7c8eb689b9a2fdba728bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 484c9d149048645da65ce649fc05f772d52ea0b5ba93e1d0f3105caea2eb2fc8
[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" "484c9d149048645da65ce649fc05f772d52ea0b5ba93e1d0f3105caea2eb2fc8", 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] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking vec-arena v0.5.2
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking async-mutex v1.2.0
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking multitask v0.2.0
[INFO] [stderr]     Checking polling v0.1.8
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking blocking v0.5.2
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]     Checking async-std v1.6.3
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking zoomies v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::DatagramFormat`
[INFO] [stdout]    --> src/lib.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     use super::DatagramFormat;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]    --> src/lib.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |     use std::collections::HashMap;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.16s
[INFO] running `Command { std: "docker" "inspect" "484c9d149048645da65ce649fc05f772d52ea0b5ba93e1d0f3105caea2eb2fc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "484c9d149048645da65ce649fc05f772d52ea0b5ba93e1d0f3105caea2eb2fc8", kill_on_drop: false }`
[INFO] [stdout] 484c9d149048645da65ce649fc05f772d52ea0b5ba93e1d0f3105caea2eb2fc8