[INFO] fetching crate newt 0.6.4...
[INFO] checking newt-0.6.4 against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] extracting crate newt 0.6.4 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate newt 0.6.4 on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate newt 0.6.4
[INFO] finished tweaking crates.io crate newt 0.6.4
[INFO] tweaked toml for crates.io crate newt 0.6.4 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate newt 0.6.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1872cba094d75c0363ab1241bedab04085df931afc800f70da98cecd8e34a13b
[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" "1872cba094d75c0363ab1241bedab04085df931afc800f70da98cecd8e34a13b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1872cba094d75c0363ab1241bedab04085df931afc800f70da98cecd8e34a13b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1872cba094d75c0363ab1241bedab04085df931afc800f70da98cecd8e34a13b", kill_on_drop: false }`
[INFO] [stdout] 1872cba094d75c0363ab1241bedab04085df931afc800f70da98cecd8e34a13b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6ceeea650fcb0be6782589fba014e45f84684b83fea5cba34490e6b95f40f2e
[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" "b6ceeea650fcb0be6782589fba014e45f84684b83fea5cba34490e6b95f40f2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.7
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling newt_proc_macros v0.0.6
[INFO] [stderr]    Compiling newt-sys v0.1.6
[INFO] [stderr]     Checking newt v0.6.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Label`
[INFO] [stdout]   --> tests/form_tests.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 | use newt::widgets::{Button,Form,Label};
[INFO] [stdout]    |                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 25s
[INFO] running `Command { std: "docker" "inspect" "b6ceeea650fcb0be6782589fba014e45f84684b83fea5cba34490e6b95f40f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6ceeea650fcb0be6782589fba014e45f84684b83fea5cba34490e6b95f40f2e", kill_on_drop: false }`
[INFO] [stdout] b6ceeea650fcb0be6782589fba014e45f84684b83fea5cba34490e6b95f40f2e