[INFO] cloning repository https://github.com/nursoltan-s/polyglot-programming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nursoltan-s/polyglot-programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursoltan-s%2Fpolyglot-programming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursoltan-s%2Fpolyglot-programming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f03336b804c744854ebda945193af81f75c151d5
[INFO] checking nursoltan-s/polyglot-programming against master#3139ff09e9d07f7700f8d15ed25a231e29c43627 for pr-121848-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursoltan-s%2Fpolyglot-programming" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nursoltan-s/polyglot-programming on toolchain 3139ff09e9d07f7700f8d15ed25a231e29c43627
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nursoltan-s/polyglot-programming
[INFO] finished tweaking git repo https://github.com/nursoltan-s/polyglot-programming
[INFO] tweaked toml for git repo https://github.com/nursoltan-s/polyglot-programming written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nursoltan-s/polyglot-programming 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" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60bf8dc9e8055cdd4884cf09a50df796136352b7e517b5dec388a00b446a11c0
[INFO] running `Command { std: "docker" "start" "-a" "60bf8dc9e8055cdd4884cf09a50df796136352b7e517b5dec388a00b446a11c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60bf8dc9e8055cdd4884cf09a50df796136352b7e517b5dec388a00b446a11c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60bf8dc9e8055cdd4884cf09a50df796136352b7e517b5dec388a00b446a11c0", kill_on_drop: false }`
[INFO] [stdout] 60bf8dc9e8055cdd4884cf09a50df796136352b7e517b5dec388a00b446a11c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eec5184b076634c18bdddfdaa8e30b7d2569b2b7b2690d1c77ad4d929c9ed31f
[INFO] running `Command { std: "docker" "start" "-a" "eec5184b076634c18bdddfdaa8e30b7d2569b2b7b2690d1c77ad4d929c9ed31f", kill_on_drop: false }`
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/main.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |     if let Some(value) = foo {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/main.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Some(value) => {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     foo.map(|x| {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RSEnum` is never used
[INFO] [stdout]  --> src/main.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum RSEnum {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/main.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |     if let Some(value) = foo {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/main.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Some(value) => {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     foo.map(|x| {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RSEnum` is never used
[INFO] [stdout]  --> src/main.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum RSEnum {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "eec5184b076634c18bdddfdaa8e30b7d2569b2b7b2690d1c77ad4d929c9ed31f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eec5184b076634c18bdddfdaa8e30b7d2569b2b7b2690d1c77ad4d929c9ed31f", kill_on_drop: false }`
[INFO] [stdout] eec5184b076634c18bdddfdaa8e30b7d2569b2b7b2690d1c77ad4d929c9ed31f
[INFO] checking nursoltan-s/polyglot-programming against try#a2cff3b7a9661c90ec0d581d3f3a69bb97c11138 for pr-121848-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursoltan-s%2Fpolyglot-programming" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create leading directories of '/workspace/builds/worker-4-tc2/source': No space left on device
[INFO] checking nursoltan-s/polyglot-programming against try#a2cff3b7a9661c90ec0d581d3f3a69bb97c11138 for pr-121848-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursoltan-s%2Fpolyglot-programming" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create leading directories of '/workspace/builds/worker-4-tc2/source': No space left on device
[INFO] checking nursoltan-s/polyglot-programming against try#a2cff3b7a9661c90ec0d581d3f3a69bb97c11138 for pr-121848-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursoltan-s%2Fpolyglot-programming" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create leading directories of '/workspace/builds/worker-4-tc2/source': No space left on device
[INFO] checking nursoltan-s/polyglot-programming against try#a2cff3b7a9661c90ec0d581d3f3a69bb97c11138 for pr-121848-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursoltan-s%2Fpolyglot-programming" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create leading directories of '/workspace/builds/worker-4-tc2/source': No space left on device
[INFO] checking nursoltan-s/polyglot-programming against try#a2cff3b7a9661c90ec0d581d3f3a69bb97c11138 for pr-121848-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursoltan-s%2Fpolyglot-programming" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create leading directories of '/workspace/builds/worker-4-tc2/source': No space left on device
[ERROR] this task or one of its parent failed!
[ERROR] failed to checkout https://github.com/nursoltan-s/polyglot-programming
[ERROR] caused by: command failed: exit status: 128
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.