[INFO] cloning repository https://github.com/tomjakubowski/wdebug40
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomjakubowski/wdebug40" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomjakubowski%2Fwdebug40", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomjakubowski%2Fwdebug40'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cbba7bb33a42f4a7a94f678546ce5fec0988798
[INFO] testing tomjakubowski/wdebug40 against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomjakubowski%2Fwdebug40" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomjakubowski/wdebug40 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomjakubowski/wdebug40
[INFO] finished tweaking git repo https://github.com/tomjakubowski/wdebug40
[INFO] tweaked toml for git repo https://github.com/tomjakubowski/wdebug40 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/tomjakubowski/wdebug40 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 366a552472a9a83240076857ddb977e7c9bc1a5ef5b2ec1bab75f0eb1be4f903
[INFO] running `Command { std: "docker" "start" "-a" "366a552472a9a83240076857ddb977e7c9bc1a5ef5b2ec1bab75f0eb1be4f903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "366a552472a9a83240076857ddb977e7c9bc1a5ef5b2ec1bab75f0eb1be4f903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "366a552472a9a83240076857ddb977e7c9bc1a5ef5b2ec1bab75f0eb1be4f903", kill_on_drop: false }`
[INFO] [stdout] 366a552472a9a83240076857ddb977e7c9bc1a5ef5b2ec1bab75f0eb1be4f903
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cac7f7e7f2863b5a5e847ec821e8760b18a6ced24db4aeacaa2615aa266d47a
[INFO] running `Command { std: "docker" "start" "-a" "1cac7f7e7f2863b5a5e847ec821e8760b18a6ced24db4aeacaa2615aa266d47a", kill_on_drop: false }`
[INFO] [stderr]    Compiling wdebug40 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate syntax;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `parse`
[INFO] [stdout]   --> src/pretty.rs:21:20
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let sess = parse::new_parse_sess();
[INFO] [stdout]    |                    ^^^^^ use of undeclared crate or module `parse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `parse`
[INFO] [stdout]   --> src/pretty.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let tokens = parse::parse_tts_from_source_str(
[INFO] [stdout]    |                      ^^^^^ use of undeclared crate or module `parse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rustc_private)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0463, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wdebug40` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "1cac7f7e7f2863b5a5e847ec821e8760b18a6ced24db4aeacaa2615aa266d47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cac7f7e7f2863b5a5e847ec821e8760b18a6ced24db4aeacaa2615aa266d47a", kill_on_drop: false }`
[INFO] [stdout] 1cac7f7e7f2863b5a5e847ec821e8760b18a6ced24db4aeacaa2615aa266d47a