[INFO] cloning repository https://github.com/dharmvr1/too-many-link
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dharmvr1/too-many-link" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdharmvr1%2Ftoo-many-link", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdharmvr1%2Ftoo-many-link'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f164ff02596315815dcce69540acbf58b26d694
[INFO] checking dharmvr1/too-many-link against try#5f6abd89da253a562ad85d235b9342a3ac336c28 for pr-156114
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdharmvr1%2Ftoo-many-link" "/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/dharmvr1/too-many-link
[INFO] finished tweaking git repo https://github.com/dharmvr1/too-many-link
[INFO] tweaked toml for git repo https://github.com/dharmvr1/too-many-link written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dharmvr1/too-many-link on toolchain 5f6abd89da253a562ad85d235b9342a3ac336c28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5f6abd89da253a562ad85d235b9342a3ac336c28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dharmvr1/too-many-link 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" "+5f6abd89da253a562ad85d235b9342a3ac336c28" "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 dharmvr1/too-many-link against try#5f6abd89da253a562ad85d235b9342a3ac336c28 for pr-156114
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdharmvr1%2Ftoo-many-link" "/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/dharmvr1/too-many-link
[INFO] finished tweaking git repo https://github.com/dharmvr1/too-many-link
[INFO] tweaked toml for git repo https://github.com/dharmvr1/too-many-link written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dharmvr1/too-many-link on toolchain 5f6abd89da253a562ad85d235b9342a3ac336c28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5f6abd89da253a562ad85d235b9342a3ac336c28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dharmvr1/too-many-link 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" "+5f6abd89da253a562ad85d235b9342a3ac336c28" "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" "+5f6abd89da253a562ad85d235b9342a3ac336c28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cb55bc7b584d2f85e0fbf14adb904fd9ae9fe77b42b71237a98767e05ba3b6b
[INFO] running `Command { std: "docker" "start" "-a" "7cb55bc7b584d2f85e0fbf14adb904fd9ae9fe77b42b71237a98767e05ba3b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cb55bc7b584d2f85e0fbf14adb904fd9ae9fe77b42b71237a98767e05ba3b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb55bc7b584d2f85e0fbf14adb904fd9ae9fe77b42b71237a98767e05ba3b6b", kill_on_drop: false }`
[INFO] [stdout] 7cb55bc7b584d2f85e0fbf14adb904fd9ae9fe77b42b71237a98767e05ba3b6b
[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" "+5f6abd89da253a562ad85d235b9342a3ac336c28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12e5772cf4fc300e7a47a04e8d9de467afa426a2e3dd6be2d4f3810ca539ab37
[INFO] running `Command { std: "docker" "start" "-a" "12e5772cf4fc300e7a47a04e8d9de467afa426a2e3dd6be2d4f3810ca539ab37", kill_on_drop: false }`
[INFO] [stderr]     Checking link_rust_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::first::List`
[INFO] [stdout]   --> src/first.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     use crate::first::List;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::second::List`
[INFO] [stdout]    --> src/second.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     use crate::second::List;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `first::Node` is more private than the item `first::Link::More::0`
[INFO] [stdout]   --> src/first.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     More(Box<Node>),
[INFO] [stdout]    |          ^^^^^^^^^ field `first::Link::More::0` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `first::Node` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/first.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout]  3 | struct Node {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `first::Node` is more private than the item `first::Link::More::0`
[INFO] [stdout]   --> src/first.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     More(Box<Node>),
[INFO] [stdout]    |          ^^^^^^^^^ field `first::Link::More::0` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `first::Node` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/first.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout]  3 | struct Node {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "12e5772cf4fc300e7a47a04e8d9de467afa426a2e3dd6be2d4f3810ca539ab37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12e5772cf4fc300e7a47a04e8d9de467afa426a2e3dd6be2d4f3810ca539ab37", kill_on_drop: false }`
[INFO] [stdout] 12e5772cf4fc300e7a47a04e8d9de467afa426a2e3dd6be2d4f3810ca539ab37
