[INFO] cloning repository https://github.com/chrde/mazes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chrde/mazes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrde%2Fmazes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrde%2Fmazes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9fe9cf6123ac3dd603195424e125f9a9e645ac0c
[INFO] checking chrde/mazes against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrde%2Fmazes" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chrde/mazes on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/chrde/mazes
[INFO] finished tweaking git repo https://github.com/chrde/mazes
[INFO] tweaked toml for git repo https://github.com/chrde/mazes written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chrde/mazes 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sapp-wasm v0.1.23
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a694048ff52cef34fb18851034f519b80322fdeaf3021bc97ec58f5a2d57a5e0
[INFO] running `Command { std: "docker" "start" "-a" "a694048ff52cef34fb18851034f519b80322fdeaf3021bc97ec58f5a2d57a5e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a694048ff52cef34fb18851034f519b80322fdeaf3021bc97ec58f5a2d57a5e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a694048ff52cef34fb18851034f519b80322fdeaf3021bc97ec58f5a2d57a5e0", kill_on_drop: false }`
[INFO] [stdout] a694048ff52cef34fb18851034f519b80322fdeaf3021bc97ec58f5a2d57a5e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1f9d1d72adbe333cb6c211d2917482b8bc5aa17a65912a0a4f272f19d1be2fd
[INFO] running `Command { std: "docker" "start" "-a" "f1f9d1d72adbe333cb6c211d2917482b8bc5aa17a65912a0a4f272f19d1be2fd", kill_on_drop: false }`
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[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.4
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[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling sapp-linux v0.1.12
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[INFO] [stderr]    Compiling khronos_api v3.1.0
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[INFO] [stderr]     Checking host_api v0.1.0 (/opt/rustwide/workdir/host_api)
[INFO] [stderr]     Checking glam v0.14.0
[INFO] [stderr]    Compiling macroquad_macro v0.1.2
[INFO] [stderr]     Checking quad-rand v0.2.1
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking fontdue v0.4.0
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[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking egui-miniquad v0.3.0
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[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]     Checking alsa v0.5.0
[INFO] [stderr]     Checking generator v0.1.0 (/opt/rustwide/workdir/generator)
[INFO] [stderr]     Checking notify v4.0.16
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> generator/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> generator/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BinaryTree`
[INFO] [stdout]    --> generator/src/maze.rs:250:17
[INFO] [stdout]     |
[INFO] [stdout] 250 |         let t = BinaryTree::new(7, 3);
[INFO] [stdout]     |                 ^^^^^^^^^^ use of undeclared type `BinaryTree`
[INFO] [stdout]     |
[INFO] [stdout] help: there is an enum variant `crate::Generator::BinaryTree` and 1 other; try using the variant's enum
[INFO] [stdout]     |
[INFO] [stdout] 250 |         let t = crate::Generator(7, 3);
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~~
[INFO] [stdout] 250 |         let t = crate::MazeGen(7, 3);
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `generator` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `generator` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "f1f9d1d72adbe333cb6c211d2917482b8bc5aa17a65912a0a4f272f19d1be2fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1f9d1d72adbe333cb6c211d2917482b8bc5aa17a65912a0a4f272f19d1be2fd", kill_on_drop: false }`
[INFO] [stdout] f1f9d1d72adbe333cb6c211d2917482b8bc5aa17a65912a0a4f272f19d1be2fd