[INFO] fetching crate metatrait 0.0.0-alpha.1...
[INFO] testing metatrait-0.0.0-alpha.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate metatrait 0.0.0-alpha.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate metatrait 0.0.0-alpha.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate metatrait 0.0.0-alpha.1
[INFO] tweaked toml for crates.io crate metatrait 0.0.0-alpha.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate metatrait 0.0.0-alpha.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate metatrait 0.0.0-alpha.1 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ghost v0.1.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f3729903e319d5bf3c6db39c53c68ad754ece0a87a8fc5853fb04adc2fe31b6
[INFO] running `Command { std: "docker" "start" "-a" "3f3729903e319d5bf3c6db39c53c68ad754ece0a87a8fc5853fb04adc2fe31b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f3729903e319d5bf3c6db39c53c68ad754ece0a87a8fc5853fb04adc2fe31b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f3729903e319d5bf3c6db39c53c68ad754ece0a87a8fc5853fb04adc2fe31b6", kill_on_drop: false }`
[INFO] [stdout] 3f3729903e319d5bf3c6db39c53c68ad754ece0a87a8fc5853fb04adc2fe31b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dc6a93fb8cc89e6c4b4a08123e0d25d789cecb0f3d0845780d7865c6259a092
[INFO] running `Command { std: "docker" "start" "-a" "0dc6a93fb8cc89e6c4b4a08123e0d25d789cecb0f3d0845780d7865c6259a092", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling ghost v0.1.17
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling metatrait v0.0.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.27s
[INFO] running `Command { std: "docker" "inspect" "0dc6a93fb8cc89e6c4b4a08123e0d25d789cecb0f3d0845780d7865c6259a092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dc6a93fb8cc89e6c4b4a08123e0d25d789cecb0f3d0845780d7865c6259a092", kill_on_drop: false }`
[INFO] [stdout] 0dc6a93fb8cc89e6c4b4a08123e0d25d789cecb0f3d0845780d7865c6259a092
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fab8028fc94127b17309dfde6196de626e6ad818fe05dbf58877255e00980e6
[INFO] running `Command { std: "docker" "start" "-a" "4fab8028fc94127b17309dfde6196de626e6ad818fe05dbf58877255e00980e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling metatrait v0.0.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Phantoms` is never constructed
[INFO] [stdout]  --> examples/phantoms.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Phantoms;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "4fab8028fc94127b17309dfde6196de626e6ad818fe05dbf58877255e00980e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fab8028fc94127b17309dfde6196de626e6ad818fe05dbf58877255e00980e6", kill_on_drop: false }`
[INFO] [stdout] 4fab8028fc94127b17309dfde6196de626e6ad818fe05dbf58877255e00980e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a984be37afa3e1ed1d5a5496f0dd834045f5341e13ab2f30a9c34a65fa6b6457
[INFO] running `Command { std: "docker" "start" "-a" "a984be37afa3e1ed1d5a5496f0dd834045f5341e13ab2f30a9c34a65fa6b6457", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Phantoms` is never constructed
[INFO] [stderr]  --> examples/phantoms.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Phantoms;
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `metatrait` (example "phantoms") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metatrait-430faeb88cd07599)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test cat::instances::composition::test::test ... ok
[INFO] [stdout] test cat::instances::lazy::test::test ... ok
[INFO] [stdout] test cat::instances::futures::test::test ... ok
[INFO] [stdout] test cat::instances::option::test::test ... ok
[INFO] [stdout] test cat::instances::verbatim::test::test ... ok
[INFO] [stdout] test cat::instances::result::test::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metatrait
[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] running `Command { std: "docker" "inspect" "a984be37afa3e1ed1d5a5496f0dd834045f5341e13ab2f30a9c34a65fa6b6457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a984be37afa3e1ed1d5a5496f0dd834045f5341e13ab2f30a9c34a65fa6b6457", kill_on_drop: false }`
[INFO] [stdout] a984be37afa3e1ed1d5a5496f0dd834045f5341e13ab2f30a9c34a65fa6b6457