[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#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluki446%2Fdigit-reader" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luki446/digit-reader on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", 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-10/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" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1f7d4b421c850aa0927502dc6e05a5e6a1bfe7799550bf9cf3e9ac1947fcd62
[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" "c1f7d4b421c850aa0927502dc6e05a5e6a1bfe7799550bf9cf3e9ac1947fcd62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1f7d4b421c850aa0927502dc6e05a5e6a1bfe7799550bf9cf3e9ac1947fcd62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1f7d4b421c850aa0927502dc6e05a5e6a1bfe7799550bf9cf3e9ac1947fcd62", kill_on_drop: false }`
[INFO] [stdout] c1f7d4b421c850aa0927502dc6e05a5e6a1bfe7799550bf9cf3e9ac1947fcd62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1749c332965f2d681d157f2bb6334663f1c7341e7284376359dc63c4c8fe482a
[INFO] running `Command { std: "docker" "start" "-a" "1749c332965f2d681d157f2bb6334663f1c7341e7284376359dc63c4c8fe482a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[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::ext::net::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[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::ext::net::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: build failed
[INFO] running `Command { std: "docker" "inspect" "1749c332965f2d681d157f2bb6334663f1c7341e7284376359dc63c4c8fe482a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1749c332965f2d681d157f2bb6334663f1c7341e7284376359dc63c4c8fe482a", kill_on_drop: false }`
[INFO] [stdout] 1749c332965f2d681d157f2bb6334663f1c7341e7284376359dc63c4c8fe482a