[INFO] cloning repository https://github.com/luki446/digit-reader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luki446/digit-reader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluki446%2Fdigit-reader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluki446%2Fdigit-reader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d0ed1ae01a3a9ede23a0efdd94dff011d8546e0
[INFO] checking luki446/digit-reader against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluki446%2Fdigit-reader" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luki446/digit-reader on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luki446/digit-reader
[INFO] finished tweaking git repo https://github.com/luki446/digit-reader
[INFO] tweaked toml for git repo https://github.com/luki446/digit-reader written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/luki446/digit-reader already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db83478911fa4f75da8c455bf3926f0e3da83027ba7c9a71fab12fa70bf9f045
[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" "db83478911fa4f75da8c455bf3926f0e3da83027ba7c9a71fab12fa70bf9f045", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db83478911fa4f75da8c455bf3926f0e3da83027ba7c9a71fab12fa70bf9f045", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db83478911fa4f75da8c455bf3926f0e3da83027ba7c9a71fab12fa70bf9f045", kill_on_drop: false }`
[INFO] [stdout] db83478911fa4f75da8c455bf3926f0e3da83027ba7c9a71fab12fa70bf9f045
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecf5136d85c53028fb3ecbb6e5d23bcc81266fbe20b6cf881ac370cdf38485e7
[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" "ecf5136d85c53028fb3ecbb6e5d23bcc81266fbe20b6cf881ac370cdf38485e7", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking nn v0.1.6
[INFO] [stderr]     Checking digit-reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `duration` in `time`
[INFO] [stdout]    --> src/main.rs:100:79
[INFO] [stdout]     |
[INFO] [stdout] 100 |                     .halt_condition(HaltCondition::Timer(std::time::duration::Duration::seconds(20)))
[INFO] [stdout]     |                                                                               ^^^^^^^^ not found in `std::time::duration`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 2   | use core::time::Duration;
[INFO] [stdout]     |
[INFO] [stdout] 2   | use crate::env::sys::futex::Duration;
[INFO] [stdout]     |
[INFO] [stdout] 2   | use std::time::Duration;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `duration` in `time`
[INFO] [stdout]    --> src/main.rs:100:79
[INFO] [stdout]     |
[INFO] [stdout] 100 |                     .halt_condition(HaltCondition::Timer(std::time::duration::Duration::seconds(20)))
[INFO] [stdout]     |                                                                               ^^^^^^^^ not found in `std::time::duration`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 2   | use core::time::Duration;
[INFO] [stdout]     |
[INFO] [stdout] 2   | use crate::env::sys::futex::Duration;
[INFO] [stdout]     |
[INFO] [stdout] 2   | use std::time::Duration;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `digit-reader`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ecf5136d85c53028fb3ecbb6e5d23bcc81266fbe20b6cf881ac370cdf38485e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf5136d85c53028fb3ecbb6e5d23bcc81266fbe20b6cf881ac370cdf38485e7", kill_on_drop: false }`
[INFO] [stdout] ecf5136d85c53028fb3ecbb6e5d23bcc81266fbe20b6cf881ac370cdf38485e7