[INFO] fetching crate tailcall-impl 0.1.4...
[INFO] testing tailcall-impl-0.1.4 against 1.47.0 for beta-1.48-1
[INFO] extracting crate tailcall-impl 0.1.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tailcall-impl 0.1.4 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tailcall-impl 0.1.4
[INFO] finished tweaking crates.io crate tailcall-impl 0.1.4
[INFO] tweaked toml for crates.io crate tailcall-impl 0.1.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 639ff6ff6768cd3bea477dd392b93a554e69d2e40b6fdddcc0964de9556d2acb
[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" "639ff6ff6768cd3bea477dd392b93a554e69d2e40b6fdddcc0964de9556d2acb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "639ff6ff6768cd3bea477dd392b93a554e69d2e40b6fdddcc0964de9556d2acb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "639ff6ff6768cd3bea477dd392b93a554e69d2e40b6fdddcc0964de9556d2acb", kill_on_drop: false }`
[INFO] [stdout] 639ff6ff6768cd3bea477dd392b93a554e69d2e40b6fdddcc0964de9556d2acb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef129780c86c13e7eac4aa8e2b124697db3c8ce79fa9e6896f97ef28092d8812
[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" "ef129780c86c13e7eac4aa8e2b124697db3c8ce79fa9e6896f97ef28092d8812", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling tailcall-impl v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.93s
[INFO] running `Command { std: "docker" "inspect" "ef129780c86c13e7eac4aa8e2b124697db3c8ce79fa9e6896f97ef28092d8812", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef129780c86c13e7eac4aa8e2b124697db3c8ce79fa9e6896f97ef28092d8812", kill_on_drop: false }`
[INFO] [stdout] ef129780c86c13e7eac4aa8e2b124697db3c8ce79fa9e6896f97ef28092d8812
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3998af741e749c04fb136d987ac6de22c2668267baedb49af33c9fbedb40cc2
[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" "f3998af741e749c04fb136d987ac6de22c2668267baedb49af33c9fbedb40cc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling tailcall-impl v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "f3998af741e749c04fb136d987ac6de22c2668267baedb49af33c9fbedb40cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3998af741e749c04fb136d987ac6de22c2668267baedb49af33c9fbedb40cc2", kill_on_drop: false }`
[INFO] [stdout] f3998af741e749c04fb136d987ac6de22c2668267baedb49af33c9fbedb40cc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ea1c2de01b87a2b0ed6129eee0e8559973e8c270431c2c8bd772027b19fe69b2
[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" "ea1c2de01b87a2b0ed6129eee0e8559973e8c270431c2c8bd772027b19fe69b2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tailcall_impl-212e30af3b66ef6b
[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]    Doc-tests tailcall-impl
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - tailcall (line 34) ... FAILED
[INFO] [stdout] test src/lib.rs - tailcall (line 55) ... ok
[INFO] [stdout] test src/lib.rs - tailcall (line 71) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - tailcall (line 34) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `tailcall`
[INFO] [stdout]  --> src/lib.rs:35:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tailcall::tailcall;
[INFO] [stdout]   |     ^^^^^^^^ use of undeclared type or module `tailcall`
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the attribute macro `tailcall`
[INFO] [stdout]  --> src/lib.rs:38:7
[INFO] [stdout]   |
[INFO] [stdout] 6 |     #[tailcall]
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - tailcall (line 34)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "ea1c2de01b87a2b0ed6129eee0e8559973e8c270431c2c8bd772027b19fe69b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea1c2de01b87a2b0ed6129eee0e8559973e8c270431c2c8bd772027b19fe69b2", kill_on_drop: false }`
[INFO] [stdout] ea1c2de01b87a2b0ed6129eee0e8559973e8c270431c2c8bd772027b19fe69b2
