[INFO] cloning repository https://github.com/intrnlerr/rust-type-system-bf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/intrnlerr/rust-type-system-bf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintrnlerr%2Frust-type-system-bf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintrnlerr%2Frust-type-system-bf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ed3ef8570d6f5ba53ad79dd3e8d4f37534a6a1f
[INFO] checking intrnlerr/rust-type-system-bf against try#15e8bc6907ab2b3623cb52acc726f4787458df64 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintrnlerr%2Frust-type-system-bf" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/intrnlerr/rust-type-system-bf on toolchain 15e8bc6907ab2b3623cb52acc726f4787458df64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/intrnlerr/rust-type-system-bf
[INFO] finished tweaking git repo https://github.com/intrnlerr/rust-type-system-bf
[INFO] tweaked toml for git repo https://github.com/intrnlerr/rust-type-system-bf written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/intrnlerr/rust-type-system-bf 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" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "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 intrnlerr/rust-type-system-bf against try#15e8bc6907ab2b3623cb52acc726f4787458df64 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintrnlerr%2Frust-type-system-bf" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/intrnlerr/rust-type-system-bf on toolchain 15e8bc6907ab2b3623cb52acc726f4787458df64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/intrnlerr/rust-type-system-bf
[INFO] finished tweaking git repo https://github.com/intrnlerr/rust-type-system-bf
[INFO] tweaked toml for git repo https://github.com/intrnlerr/rust-type-system-bf written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/intrnlerr/rust-type-system-bf 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" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 268695b2761ff6f7b199999e9da93262cbac85e623e9553e9691b822689d7381
[INFO] running `Command { std: "docker" "start" "-a" "268695b2761ff6f7b199999e9da93262cbac85e623e9553e9691b822689d7381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "268695b2761ff6f7b199999e9da93262cbac85e623e9553e9691b822689d7381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "268695b2761ff6f7b199999e9da93262cbac85e623e9553e9691b822689d7381", kill_on_drop: false }`
[INFO] [stdout] 268695b2761ff6f7b199999e9da93262cbac85e623e9553e9691b822689d7381
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3f193332826ca67574417b686663be0db50eb8c060ad57573b3aace029ddef1
[INFO] running `Command { std: "docker" "start" "-a" "e3f193332826ca67574417b686663be0db50eb8c060ad57573b3aace029ddef1", kill_on_drop: false }`
[INFO] [stderr]     Checking ok v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Zero` is never used
[INFO] [stdout]   --> src/main.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | trait Zero {}
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PeanoMul` is never used
[INFO] [stdout]    --> src/main.rs:113:7
[INFO] [stdout]     |
[INFO] [stdout] 113 | trait PeanoMul<Rhs> {
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Uncons` is never used
[INFO] [stdout]    --> src/main.rs:165:7
[INFO] [stdout]     |
[INFO] [stdout] 165 | trait Uncons {
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ZipSet` is never used
[INFO] [stdout]    --> src/main.rs:208:7
[INFO] [stdout]     |
[INFO] [stdout] 208 | trait ZipSet<X> {
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Zero` is never used
[INFO] [stdout]   --> src/main.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | trait Zero {}
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PeanoMul` is never used
[INFO] [stdout]    --> src/main.rs:113:7
[INFO] [stdout]     |
[INFO] [stdout] 113 | trait PeanoMul<Rhs> {
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Uncons` is never used
[INFO] [stdout]    --> src/main.rs:165:7
[INFO] [stdout]     |
[INFO] [stdout] 165 | trait Uncons {
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ZipSet` is never used
[INFO] [stdout]    --> src/main.rs:208:7
[INFO] [stdout]     |
[INFO] [stdout] 208 | trait ZipSet<X> {
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `Command { std: "docker" "inspect" "e3f193332826ca67574417b686663be0db50eb8c060ad57573b3aace029ddef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3f193332826ca67574417b686663be0db50eb8c060ad57573b3aace029ddef1", kill_on_drop: false }`
[INFO] [stdout] e3f193332826ca67574417b686663be0db50eb8c060ad57573b3aace029ddef1