[INFO] fetching crate CargoLibrary 0.1.1...
[INFO] checking CargoLibrary-0.1.1 against try#099e089ab723e6ee96175f3496051098c60a4cd4 for pr-140208
[INFO] extracting crate CargoLibrary 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate CargoLibrary 0.1.1 on toolchain 099e089ab723e6ee96175f3496051098c60a4cd4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+099e089ab723e6ee96175f3496051098c60a4cd4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate CargoLibrary 0.1.1
[INFO] finished tweaking crates.io crate CargoLibrary 0.1.1
[INFO] tweaked toml for crates.io crate CargoLibrary 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate CargoLibrary 0.1.1 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" "+099e089ab723e6ee96175f3496051098c60a4cd4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+099e089ab723e6ee96175f3496051098c60a4cd4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/b64d4078ec3e9ebdb14b7fc9d3853b6f982edecb8d05b02771bfbb5a26d96b65/diff: no space left on device
[INFO] checking CargoLibrary-0.1.1 against try#099e089ab723e6ee96175f3496051098c60a4cd4 for pr-140208
[INFO] extracting crate CargoLibrary 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate CargoLibrary 0.1.1 on toolchain 099e089ab723e6ee96175f3496051098c60a4cd4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+099e089ab723e6ee96175f3496051098c60a4cd4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate CargoLibrary 0.1.1
[INFO] finished tweaking crates.io crate CargoLibrary 0.1.1
[INFO] tweaked toml for crates.io crate CargoLibrary 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate CargoLibrary 0.1.1 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" "+099e089ab723e6ee96175f3496051098c60a4cd4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+099e089ab723e6ee96175f3496051098c60a4cd4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c416562572291697b81795c946c697e30a49a33d83f58f74317061c72fe16d72
[INFO] running `Command { std: "docker" "start" "-a" "c416562572291697b81795c946c697e30a49a33d83f58f74317061c72fe16d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c416562572291697b81795c946c697e30a49a33d83f58f74317061c72fe16d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c416562572291697b81795c946c697e30a49a33d83f58f74317061c72fe16d72", kill_on_drop: false }`
[INFO] [stdout] c416562572291697b81795c946c697e30a49a33d83f58f74317061c72fe16d72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+099e089ab723e6ee96175f3496051098c60a4cd4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cee61943fc43f643956a7449a871cc11f2651847040dfdaa6057f011e2edfb7
[INFO] running `Command { std: "docker" "start" "-a" "7cee61943fc43f643956a7449a871cc11f2651847040dfdaa6057f011e2edfb7", kill_on_drop: false }`
[INFO] [stderr]     Checking CargoLibrary v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lib.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn mix(c1: PrimaryColors, c2: PrimaryColors) -> SecondaryColors {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lib.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn mix(c1: PrimaryColors, c2: PrimaryColors) -> SecondaryColors {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lib.rs:49:35
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn mix(c1: PrimaryColors, c2: PrimaryColors) -> SecondaryColors {
[INFO] [stdout]    |                                   ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `CargoLibrary` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `cargo_library`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lib.rs:49:35
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn mix(c1: PrimaryColors, c2: PrimaryColors) -> SecondaryColors {
[INFO] [stdout]    |                                   ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Kinds` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub mod Kinds {
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case (notice the capitalization): `kinds`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Kinds` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub mod Kinds {
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case (notice the capitalization): `kinds`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let x = PrimaryColors::Red;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let x = PrimaryColors::Red;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "7cee61943fc43f643956a7449a871cc11f2651847040dfdaa6057f011e2edfb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cee61943fc43f643956a7449a871cc11f2651847040dfdaa6057f011e2edfb7", kill_on_drop: false }`
[INFO] [stdout] 7cee61943fc43f643956a7449a871cc11f2651847040dfdaa6057f011e2edfb7