[INFO] cloning repository https://github.com/maximka76667/common-collections
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maximka76667/common-collections" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaximka76667%2Fcommon-collections", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaximka76667%2Fcommon-collections'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eaa15d490989200f63c47cd7da11bb2f9214d601
[INFO] checking maximka76667/common-collections against try#b98202ad067d72e45cec8be3d5c15d86ef0fd086 for pr-155193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaximka76667%2Fcommon-collections" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maximka76667/common-collections
[INFO] finished tweaking git repo https://github.com/maximka76667/common-collections
[INFO] tweaked toml for git repo https://github.com/maximka76667/common-collections written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maximka76667/common-collections on toolchain b98202ad067d72e45cec8be3d5c15d86ef0fd086
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maximka76667/common-collections already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "fetch" "--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
[ERROR] error running command: no output for 300 seconds
[INFO] checking maximka76667/common-collections against try#b98202ad067d72e45cec8be3d5c15d86ef0fd086 for pr-155193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaximka76667%2Fcommon-collections" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maximka76667/common-collections
[INFO] finished tweaking git repo https://github.com/maximka76667/common-collections
[INFO] tweaked toml for git repo https://github.com/maximka76667/common-collections written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maximka76667/common-collections on toolchain b98202ad067d72e45cec8be3d5c15d86ef0fd086
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maximka76667/common-collections already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "fetch" "--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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b9b94399815ca90a5cfa71c0761cde4c4920663b825307bce6c5c9613df2714
[INFO] running `Command { std: "docker" "start" "-a" "6b9b94399815ca90a5cfa71c0761cde4c4920663b825307bce6c5c9613df2714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b9b94399815ca90a5cfa71c0761cde4c4920663b825307bce6c5c9613df2714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b9b94399815ca90a5cfa71c0761cde4c4920663b825307bce6c5c9613df2714", kill_on_drop: false }`
[INFO] [stdout] 6b9b94399815ca90a5cfa71c0761cde4c4920663b825307bce6c5c9613df2714
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75a65dd2ba99d69a5cce927fc9f10ad08ee8960d412c6d23140d477c4aa89e8b
[INFO] running `Command { std: "docker" "start" "-a" "75a65dd2ba99d69a5cce927fc9f10ad08ee8960d412c6d23140d477c4aa89e8b", kill_on_drop: false }`
[INFO] [stderr]     Checking common-collections v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/strings.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/strings.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ArrayItem` is never used
[INFO] [stdout]  --> src/vectors.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum ArrayItem {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ArrayItem` is never used
[INFO] [stdout]  --> src/vectors.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum ArrayItem {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/vectors.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/vectors.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "75a65dd2ba99d69a5cce927fc9f10ad08ee8960d412c6d23140d477c4aa89e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75a65dd2ba99d69a5cce927fc9f10ad08ee8960d412c6d23140d477c4aa89e8b", kill_on_drop: false }`
[INFO] [stdout] 75a65dd2ba99d69a5cce927fc9f10ad08ee8960d412c6d23140d477c4aa89e8b