[INFO] fetching crate ascii_help 1.2.1...
[INFO] checking ascii_help-1.2.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate ascii_help 1.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate ascii_help 1.2.1
[INFO] finished tweaking crates.io crate ascii_help 1.2.1
[INFO] tweaked toml for crates.io crate ascii_help 1.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ascii_help 1.2.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ascii_help 1.2.1 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1933008f77983df9105cf66d9202aeaf6acba270bd7e3f97d493a59da5b874a2
[INFO] running `Command { std: "docker" "start" "-a" "1933008f77983df9105cf66d9202aeaf6acba270bd7e3f97d493a59da5b874a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1933008f77983df9105cf66d9202aeaf6acba270bd7e3f97d493a59da5b874a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1933008f77983df9105cf66d9202aeaf6acba270bd7e3f97d493a59da5b874a2", kill_on_drop: false }`
[INFO] [stdout] 1933008f77983df9105cf66d9202aeaf6acba270bd7e3f97d493a59da5b874a2
[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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bac58654e2ab34cddbc9b8cb0f8a2e7abb094f1597be22bf64d3494a56d8ba7b
[INFO] running `Command { std: "docker" "start" "-a" "bac58654e2ab34cddbc9b8cb0f8a2e7abb094f1597be22bf64d3494a56d8ba7b", kill_on_drop: false }`
[INFO] [stderr]     Checking ascii_help v1.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: failed to find a `codegen-backends` folder in the sysroot candidates:
[INFO] [stdout]        * /opt/rustwide/rustup-home/toolchains/998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: failed to find a `codegen-backends` folder in the sysroot candidates:
[INFO] [stdout]        * /opt/rustwide/rustup-home/toolchains/998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ascii_help` (bin "ascii_help") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ascii_help` (bin "ascii_help" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "bac58654e2ab34cddbc9b8cb0f8a2e7abb094f1597be22bf64d3494a56d8ba7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bac58654e2ab34cddbc9b8cb0f8a2e7abb094f1597be22bf64d3494a56d8ba7b", kill_on_drop: false }`
[INFO] [stdout] bac58654e2ab34cddbc9b8cb0f8a2e7abb094f1597be22bf64d3494a56d8ba7b