[INFO] fetching crate pcb-c 0.2.0...
[INFO] testing pcb-c-0.2.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate pcb-c 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pcb-c 0.2.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pcb-c 0.2.0
[INFO] finished tweaking crates.io crate pcb-c 0.2.0
[INFO] tweaked toml for crates.io crate pcb-c 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gcc v0.3.55
[INFO] [stderr]   Downloaded libc v0.2.98
[INFO] [stderr]   Downloaded semver v0.1.20
[INFO] [stderr]   Downloaded typed-arena v1.7.0
[INFO] [stderr]   Downloaded pcb v0.2.0
[INFO] [stderr]   Downloaded pcb-llvm v0.2.0
[INFO] [stderr]   Downloaded pcb-core v0.2.0
[INFO] [stderr]   Downloaded llvm-sys v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad1b1997e51b890fa7f8cfbc925a3c10f22ea68937edc719bd131062215b9880
[INFO] running `Command { std: "docker" "start" "-a" "ad1b1997e51b890fa7f8cfbc925a3c10f22ea68937edc719bd131062215b9880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad1b1997e51b890fa7f8cfbc925a3c10f22ea68937edc719bd131062215b9880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad1b1997e51b890fa7f8cfbc925a3c10f22ea68937edc719bd131062215b9880", kill_on_drop: false }`
[INFO] [stdout] ad1b1997e51b890fa7f8cfbc925a3c10f22ea68937edc719bd131062215b9880
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bcc52166176156914457da0b9ebed47b239a6d213d5e458f49c2bc43aa83d6c
[INFO] running `Command { std: "docker" "start" "-a" "3bcc52166176156914457da0b9ebed47b239a6d213d5e458f49c2bc43aa83d6c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling pcb-c v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling pcb-core v0.2.0
[INFO] [stdout] error[E0463]: can't find crate for `cheddar`
[INFO] [stdout]  --> build.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate cheddar;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pcb-c` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3bcc52166176156914457da0b9ebed47b239a6d213d5e458f49c2bc43aa83d6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bcc52166176156914457da0b9ebed47b239a6d213d5e458f49c2bc43aa83d6c", kill_on_drop: false }`
[INFO] [stdout] 3bcc52166176156914457da0b9ebed47b239a6d213d5e458f49c2bc43aa83d6c
