[INFO] updating cached repository https://github.com/IGI-111/xit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4fe077f01c63f192246a4a9364ee165c572c4edd
[INFO] checking IGI-111/xit against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIGI-111%2Fxit" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IGI-111/xit on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/IGI-111/xit
[INFO] finished tweaking git repo https://github.com/IGI-111/xit
[INFO] tweaked toml for git repo https://github.com/IGI-111/xit written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/IGI-111/xit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b398134e600feae5f696a1e6a94aaa329a868e20517ed1df7cb568aa41fe9da
[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" "4b398134e600feae5f696a1e6a94aaa329a868e20517ed1df7cb568aa41fe9da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b398134e600feae5f696a1e6a94aaa329a868e20517ed1df7cb568aa41fe9da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b398134e600feae5f696a1e6a94aaa329a868e20517ed1df7cb568aa41fe9da", kill_on_drop: false }`
[INFO] [stdout] 4b398134e600feae5f696a1e6a94aaa329a868e20517ed1df7cb568aa41fe9da
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2f33116fdce43c681f02d74e7acc8f48d23837835524d5a0da60c163631d451
[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" "c2f33116fdce43c681f02d74e7acc8f48d23837835524d5a0da60c163631d451", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking serde v0.9.14
[INFO] [stderr]     Checking termion v1.3.0
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]     Checking xit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]   --> src/main.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::{Instant, Duration};
[INFO] [stdout]    |                 ^^^^^^^  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/main.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::sync::mpsc::{self, Receiver};
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]   --> src/main.rs:16:37
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::io::{stdin, stdout, Write, Read, BufWriter};
[INFO] [stdout]    |                                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]   --> src/main.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::{Instant, Duration};
[INFO] [stdout]    |                 ^^^^^^^  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/main.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::sync::mpsc::{self, Receiver};
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]   --> src/main.rs:16:37
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::io::{stdin, stdout, Write, Read, BufWriter};
[INFO] [stdout]    |                                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.48s
[INFO] running `Command { std: "docker" "inspect" "c2f33116fdce43c681f02d74e7acc8f48d23837835524d5a0da60c163631d451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2f33116fdce43c681f02d74e7acc8f48d23837835524d5a0da60c163631d451", kill_on_drop: false }`
[INFO] [stdout] c2f33116fdce43c681f02d74e7acc8f48d23837835524d5a0da60c163631d451