[INFO] cloning repository https://github.com/FredericaBernkastel/gallery-of-babel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FredericaBernkastel/gallery-of-babel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericaBernkastel%2Fgallery-of-babel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericaBernkastel%2Fgallery-of-babel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01cf8fb62744c6bdd663540749276eac001b6b24
[INFO] testing FredericaBernkastel/gallery-of-babel against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericaBernkastel%2Fgallery-of-babel" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FredericaBernkastel/gallery-of-babel on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FredericaBernkastel/gallery-of-babel
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/FredericaBernkastel/gallery-of-babel
[INFO] tweaked toml for git repo https://github.com/FredericaBernkastel/gallery-of-babel written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pathdiff v0.2.1
[INFO] [stderr]   Downloaded open v1.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21ec70cc4d3b2422b3f4d1e07f75968f72fec5c754a1d85c5f3c0fc2bd6a4b65
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "21ec70cc4d3b2422b3f4d1e07f75968f72fec5c754a1d85c5f3c0fc2bd6a4b65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21ec70cc4d3b2422b3f4d1e07f75968f72fec5c754a1d85c5f3c0fc2bd6a4b65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21ec70cc4d3b2422b3f4d1e07f75968f72fec5c754a1d85c5f3c0fc2bd6a4b65", kill_on_drop: false }`
[INFO] [stdout] 21ec70cc4d3b2422b3f4d1e07f75968f72fec5c754a1d85c5f3c0fc2bd6a4b65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40133cc8d298a1994d8a28723e8e916f448f39cc17cd5826caf3f80f5806e526
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "40133cc8d298a1994d8a28723e8e916f448f39cc17cd5826caf3f80f5806e526", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling euclid v0.22.6
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling space-filling v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.35s
[INFO] running `Command { std: "docker" "inspect" "40133cc8d298a1994d8a28723e8e916f448f39cc17cd5826caf3f80f5806e526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40133cc8d298a1994d8a28723e8e916f448f39cc17cd5826caf3f80f5806e526", kill_on_drop: false }`
[INFO] [stdout] 40133cc8d298a1994d8a28723e8e916f448f39cc17cd5826caf3f80f5806e526
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a666f0db459ed9e16e586e06efba201a29eacb4052437a516bef9b937c6f6c93
[INFO] running `Command { std: "docker" "start" "-a" "a666f0db459ed9e16e586e06efba201a29eacb4052437a516bef9b937c6f6c93", kill_on_drop: false }`
[INFO] [stderr]    Compiling pathdiff v0.2.1
[INFO] [stderr]    Compiling any_ascii v0.1.7
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling open v1.7.1
[INFO] [stderr]    Compiling lexical-sort v0.3.1
[INFO] [stderr]    Compiling space-filling v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.29s
[INFO] running `Command { std: "docker" "inspect" "a666f0db459ed9e16e586e06efba201a29eacb4052437a516bef9b937c6f6c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a666f0db459ed9e16e586e06efba201a29eacb4052437a516bef9b937c6f6c93", kill_on_drop: false }`
[INFO] [stdout] a666f0db459ed9e16e586e06efba201a29eacb4052437a516bef9b937c6f6c93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 921b4d4d35fef2da23ff5c3dab4b8053ad3ae5d590adc23a3e81efccd4d0c19f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "921b4d4d35fef2da23ff5c3dab4b8053ad3ae5d590adc23a3e81efccd4d0c19f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/space_filling-cd4fa0d335e82120)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests space_filling
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:141:18
[INFO] [stderr]     |
[INFO] [stderr] 141 | #![cfg_attr(doc, feature(doc_cfg))]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "921b4d4d35fef2da23ff5c3dab4b8053ad3ae5d590adc23a3e81efccd4d0c19f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "921b4d4d35fef2da23ff5c3dab4b8053ad3ae5d590adc23a3e81efccd4d0c19f", kill_on_drop: false }`
[INFO] [stdout] 921b4d4d35fef2da23ff5c3dab4b8053ad3ae5d590adc23a3e81efccd4d0c19f