[INFO] cloning repository https://github.com/wagnerf42/by_blocks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wagnerf42/by_blocks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwagnerf42%2Fby_blocks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwagnerf42%2Fby_blocks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 961fa8966512f8cff476a2d6fda55677626579dc
[INFO] testing wagnerf42/by_blocks against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwagnerf42%2Fby_blocks" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wagnerf42/by_blocks on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wagnerf42/by_blocks
[INFO] finished tweaking git repo https://github.com/wagnerf42/by_blocks
[INFO] tweaked toml for git repo https://github.com/wagnerf42/by_blocks written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/wagnerf42/by_blocks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07e68633bb62f1860543c57980de81863631ee27ede297e2fcd073c06a8db357
[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" "07e68633bb62f1860543c57980de81863631ee27ede297e2fcd073c06a8db357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07e68633bb62f1860543c57980de81863631ee27ede297e2fcd073c06a8db357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07e68633bb62f1860543c57980de81863631ee27ede297e2fcd073c06a8db357", kill_on_drop: false }`
[INFO] [stdout] 07e68633bb62f1860543c57980de81863631ee27ede297e2fcd073c06a8db357
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7acf9c0695660a46c2c262e60a910832ccc23cc9caf237e3b9a76dd5993507c1
[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" "7acf9c0695660a46c2c262e60a910832ccc23cc9caf237e3b9a76dd5993507c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling rayon-core v1.8.0 (https://github.com/wagnerf42/rayon?branch=tracing#41da67cf)
[INFO] [stderr]    Compiling rayon v1.4.0 (https://github.com/wagnerf42/rayon?branch=tracing#41da67cf)
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling fast-tracer v0.1.0 (https://github.com/wagnerf42/fast-tracer#77afe1a4)
[INFO] [stderr]    Compiling by_blocks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.00s
[INFO] running `Command { std: "docker" "inspect" "7acf9c0695660a46c2c262e60a910832ccc23cc9caf237e3b9a76dd5993507c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7acf9c0695660a46c2c262e60a910832ccc23cc9caf237e3b9a76dd5993507c1", kill_on_drop: false }`
[INFO] [stdout] 7acf9c0695660a46c2c262e60a910832ccc23cc9caf237e3b9a76dd5993507c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9255cc2dd530c36062c83c05d392d81033ec695cf35467436346aa2f4a6757a
[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" "f9255cc2dd530c36062c83c05d392d81033ec695cf35467436346aa2f4a6757a", kill_on_drop: false }`
[INFO] [stderr]    Compiling by_blocks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "f9255cc2dd530c36062c83c05d392d81033ec695cf35467436346aa2f4a6757a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9255cc2dd530c36062c83c05d392d81033ec695cf35467436346aa2f4a6757a", kill_on_drop: false }`
[INFO] [stdout] f9255cc2dd530c36062c83c05d392d81033ec695cf35467436346aa2f4a6757a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] 68558ee42c2da07136bcd764e71047d3eb9079916a109a5509b1f48257da4b38
[INFO] running `Command { std: "docker" "start" "-a" "68558ee42c2da07136bcd764e71047d3eb9079916a109a5509b1f48257da4b38", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/by_blocks-bf185c1256c04fef
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/by_blocks-cac2e65a363e85e4
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests by_blocks
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] [stderr] error[E0659]: `by_blocks` is ambiguous (name vs any other name during import resolution)
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub use by_blocks::ByBlocks;
[INFO] [stderr]   |         ^^^^^^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `by_blocks` could refer to a crate passed with `--extern`
[INFO] [stderr]   = help: use `::by_blocks` to refer to this crate unambiguously
[INFO] [stderr] note: `by_blocks` could also refer to the module defined here
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod by_blocks;
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   = help: use `crate::by_blocks` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "68558ee42c2da07136bcd764e71047d3eb9079916a109a5509b1f48257da4b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68558ee42c2da07136bcd764e71047d3eb9079916a109a5509b1f48257da4b38", kill_on_drop: false }`
[INFO] [stdout] 68558ee42c2da07136bcd764e71047d3eb9079916a109a5509b1f48257da4b38