[INFO] cloning repository https://github.com/studiojms/rust-shopping-list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/studiojms/rust-shopping-list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudiojms%2Frust-shopping-list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudiojms%2Frust-shopping-list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7389a74f3811f59eb31e41613203084e27dd3984
[INFO] checking studiojms/rust-shopping-list against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudiojms%2Frust-shopping-list" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/studiojms/rust-shopping-list
[INFO] finished tweaking git repo https://github.com/studiojms/rust-shopping-list
[INFO] tweaked toml for git repo https://github.com/studiojms/rust-shopping-list written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/studiojms/rust-shopping-list on toolchain 8a0378607d6b34c242e3bfa75554871be641864b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/studiojms/rust-shopping-list 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" "+8a0378607d6b34c242e3bfa75554871be641864b" "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 studiojms/rust-shopping-list against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudiojms%2Frust-shopping-list" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/studiojms/rust-shopping-list
[INFO] finished tweaking git repo https://github.com/studiojms/rust-shopping-list
[INFO] tweaked toml for git repo https://github.com/studiojms/rust-shopping-list written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/studiojms/rust-shopping-list on toolchain 8a0378607d6b34c242e3bfa75554871be641864b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/studiojms/rust-shopping-list 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" "+8a0378607d6b34c242e3bfa75554871be641864b" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a17c2284e67b09414eada07082e2cfc5115f9da8dba6d9b96de554a63fd3c088
[INFO] running `Command { std: "docker" "start" "-a" "a17c2284e67b09414eada07082e2cfc5115f9da8dba6d9b96de554a63fd3c088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a17c2284e67b09414eada07082e2cfc5115f9da8dba6d9b96de554a63fd3c088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a17c2284e67b09414eada07082e2cfc5115f9da8dba6d9b96de554a63fd3c088", kill_on_drop: false }`
[INFO] [stdout] a17c2284e67b09414eada07082e2cfc5115f9da8dba6d9b96de554a63fd3c088
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33e6c8d1efb8d695111cc538b18f73df1419ece928e41a6fcce4e4bfb6e1b7a8
[INFO] running `Command { std: "docker" "start" "-a" "33e6c8d1efb8d695111cc538b18f73df1419ece928e41a6fcce4e4bfb6e1b7a8", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-shopping-list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Command` is never used
[INFO] [stdout]  --> src/main.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | enum Command {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidCommand`, `EmptyCommand`, `Unknown`, and `MissingItem` are never constructed
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum CommandError {
[INFO] [stdout]    |      ------------ variants in this enum
[INFO] [stdout] 14 |     InvalidCommand,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     EmptyCommand,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 16 |     Unknown(String),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 17 |     MissingItem,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get` and `list` are never used
[INFO] [stdout]    --> src/main.rs:95:8
[INFO] [stdout]     |
[INFO] [stdout] 81  | impl ShoppingList {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn get(&self, item: Item) -> Option<u8> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn list(&self) -> Vec<(&Item, &u8)> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Command` is never used
[INFO] [stdout]  --> src/main.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | enum Command {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidCommand`, `EmptyCommand`, `Unknown`, and `MissingItem` are never constructed
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum CommandError {
[INFO] [stdout]    |      ------------ variants in this enum
[INFO] [stdout] 14 |     InvalidCommand,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     EmptyCommand,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 16 |     Unknown(String),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 17 |     MissingItem,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get` and `list` are never used
[INFO] [stdout]    --> src/main.rs:95:8
[INFO] [stdout]     |
[INFO] [stdout] 81  | impl ShoppingList {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn get(&self, item: Item) -> Option<u8> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn list(&self) -> Vec<(&Item, &u8)> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "33e6c8d1efb8d695111cc538b18f73df1419ece928e41a6fcce4e4bfb6e1b7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33e6c8d1efb8d695111cc538b18f73df1419ece928e41a6fcce4e4bfb6e1b7a8", kill_on_drop: false }`
[INFO] [stdout] 33e6c8d1efb8d695111cc538b18f73df1419ece928e41a6fcce4e4bfb6e1b7a8