[INFO] fetching crate mark-flaky-tests 1.0.2...
[INFO] checking mark-flaky-tests-1.0.2 against try#1bdcb63291ccffc030f8223f6f978568dd240e3e for 155501-infallible-never-with-reservation
[INFO] extracting crate mark-flaky-tests 1.0.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mark-flaky-tests 1.0.2
[INFO] finished tweaking crates.io crate mark-flaky-tests 1.0.2
[INFO] tweaked toml for crates.io crate mark-flaky-tests 1.0.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mark-flaky-tests 1.0.2 on toolchain 1bdcb63291ccffc030f8223f6f978568dd240e3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dab19312e4a26969df4c32b3a996a3c9936e9f59406a8d2a46d8db1826bbb9b9
[INFO] running `Command { std: "docker" "start" "-a" "dab19312e4a26969df4c32b3a996a3c9936e9f59406a8d2a46d8db1826bbb9b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dab19312e4a26969df4c32b3a996a3c9936e9f59406a8d2a46d8db1826bbb9b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab19312e4a26969df4c32b3a996a3c9936e9f59406a8d2a46d8db1826bbb9b9", kill_on_drop: false }`
[INFO] [stdout] dab19312e4a26969df4c32b3a996a3c9936e9f59406a8d2a46d8db1826bbb9b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c3ca7421f03134d50e9a057e5c4e8b8b5994c691009cab7fb57f0201f74964c
[INFO] running `Command { std: "docker" "start" "-a" "9c3ca7421f03134d50e9a057e5c4e8b8b5994c691009cab7fb57f0201f74964c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling mark-flaky-tests-macro v1.0.2
[INFO] [stderr]     Checking mark-flaky-tests v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0119]: conflicting implementations of trait `IsFailure` for type `!`
[INFO] [stdout]   --> src/lib.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     impl IsFailure for std::convert::Infallible {
[INFO] [stdout]    |     ------------------------------------------- first implementation here
[INFO] [stdout] ...
[INFO] [stdout] 71 |     impl IsFailure for Never {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `!`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0119`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mark-flaky-tests` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9c3ca7421f03134d50e9a057e5c4e8b8b5994c691009cab7fb57f0201f74964c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3ca7421f03134d50e9a057e5c4e8b8b5994c691009cab7fb57f0201f74964c", kill_on_drop: false }`
[INFO] [stdout] 9c3ca7421f03134d50e9a057e5c4e8b8b5994c691009cab7fb57f0201f74964c