[INFO] cloning repository https://github.com/FabianWolff/rustc-cl-sig-mwe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FabianWolff/rustc-cl-sig-mwe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabianWolff%2Frustc-cl-sig-mwe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabianWolff%2Frustc-cl-sig-mwe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce9b269bcc8701d9e4cd26bd69cd5ff77868f462
[INFO] testing FabianWolff/rustc-cl-sig-mwe against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabianWolff%2Frustc-cl-sig-mwe" "/workspace/builds/worker-113/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-113/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FabianWolff/rustc-cl-sig-mwe on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-113/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/FabianWolff/rustc-cl-sig-mwe
[INFO] finished tweaking git repo https://github.com/FabianWolff/rustc-cl-sig-mwe
[INFO] tweaked toml for git repo https://github.com/FabianWolff/rustc-cl-sig-mwe written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] crate git repo https://github.com/FabianWolff/rustc-cl-sig-mwe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b19881569b0a8358aa31217e2114b2303f07a19c5c93fe02cfed711a8b7cc86
[INFO] running `Command { std: "docker" "start" "-a" "2b19881569b0a8358aa31217e2114b2303f07a19c5c93fe02cfed711a8b7cc86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b19881569b0a8358aa31217e2114b2303f07a19c5c93fe02cfed711a8b7cc86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b19881569b0a8358aa31217e2114b2303f07a19c5c93fe02cfed711a8b7cc86", kill_on_drop: false }`
[INFO] [stdout] 2b19881569b0a8358aa31217e2114b2303f07a19c5c93fe02cfed711a8b7cc86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22ac1186d7217e2acfc010c03233060ce51ee08dd5cf6ef5bf8df017be15dc3d
[INFO] running `Command { std: "docker" "start" "-a" "22ac1186d7217e2acfc010c03233060ce51ee08dd5cf6ef5bf8df017be15dc3d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cl-mwe v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_driver`
[INFO] [stdout]  --> src/bin/cl-mwe.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate rustc_driver;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe you need to install the missing components with: `rustup component add rust-src rustc-dev llvm-tools-preview`
[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 `cl-mwe` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "22ac1186d7217e2acfc010c03233060ce51ee08dd5cf6ef5bf8df017be15dc3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22ac1186d7217e2acfc010c03233060ce51ee08dd5cf6ef5bf8df017be15dc3d", kill_on_drop: false }`
[INFO] [stdout] 22ac1186d7217e2acfc010c03233060ce51ee08dd5cf6ef5bf8df017be15dc3d