[INFO] fetching crate ascii_help 1.2.1...
[INFO] checking ascii_help-1.2.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate ascii_help 1.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ascii_help 1.2.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cd2c82d494eeb54a765547108e91b15831b679eba3ad2202bd055ff0cd601f2
[INFO] running `Command { std: "docker" "start" "-a" "4cd2c82d494eeb54a765547108e91b15831b679eba3ad2202bd055ff0cd601f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cd2c82d494eeb54a765547108e91b15831b679eba3ad2202bd055ff0cd601f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd2c82d494eeb54a765547108e91b15831b679eba3ad2202bd055ff0cd601f2", kill_on_drop: false }`
[INFO] [stdout] 4cd2c82d494eeb54a765547108e91b15831b679eba3ad2202bd055ff0cd601f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cb21dbac8f370663fe9e5d6f127b3053fa58c9fe0c981317babd198f65e102c
[INFO] running `Command { std: "docker" "start" "-a" "6cb21dbac8f370663fe9e5d6f127b3053fa58c9fe0c981317babd198f65e102c", kill_on_drop: false }`
[INFO] [stderr]     Checking ascii_help v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `ascii_help` (bin "ascii_help") due to 1 previous error
[INFO] [stdout] error: failed to find a `codegen-backends` folder in the sysroot candidates:
[INFO] [stdout]        * /opt/rustwide/rustup-home/toolchains/350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: failed to find a `codegen-backends` folder in the sysroot candidates:
[INFO] [stdout]        * /opt/rustwide/rustup-home/toolchains/350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ascii_help` (bin "ascii_help" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6cb21dbac8f370663fe9e5d6f127b3053fa58c9fe0c981317babd198f65e102c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cb21dbac8f370663fe9e5d6f127b3053fa58c9fe0c981317babd198f65e102c", kill_on_drop: false }`
[INFO] [stdout] 6cb21dbac8f370663fe9e5d6f127b3053fa58c9fe0c981317babd198f65e102c