[INFO] fetching crate tailcall 0.1.6...
[INFO] testing tailcall-0.1.6 against 1.59.0 for beta-1.60-1
[INFO] extracting crate tailcall 0.1.6 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate tailcall 0.1.6 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tailcall 0.1.6
[INFO] finished tweaking crates.io crate tailcall 0.1.6
[INFO] tweaked toml for crates.io crate tailcall 0.1.6 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a2b8470b3485df51b9e2b3a3bb66f1015dd7a5da8dfbdffc0a04ce06e7f3899
[INFO] running `Command { std: "docker" "start" "-a" "8a2b8470b3485df51b9e2b3a3bb66f1015dd7a5da8dfbdffc0a04ce06e7f3899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a2b8470b3485df51b9e2b3a3bb66f1015dd7a5da8dfbdffc0a04ce06e7f3899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a2b8470b3485df51b9e2b3a3bb66f1015dd7a5da8dfbdffc0a04ce06e7f3899", kill_on_drop: false }`
[INFO] [stdout] 8a2b8470b3485df51b9e2b3a3bb66f1015dd7a5da8dfbdffc0a04ce06e7f3899
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aec8e737c403b2d72888941112681a50c6d92949b91e438ae0b23e3c4bb0251d
[INFO] running `Command { std: "docker" "start" "-a" "aec8e737c403b2d72888941112681a50c6d92949b91e438ae0b23e3c4bb0251d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling tailcall-impl v0.1.6
[INFO] [stderr]    Compiling tailcall v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.16s
[INFO] running `Command { std: "docker" "inspect" "aec8e737c403b2d72888941112681a50c6d92949b91e438ae0b23e3c4bb0251d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aec8e737c403b2d72888941112681a50c6d92949b91e438ae0b23e3c4bb0251d", kill_on_drop: false }`
[INFO] [stdout] aec8e737c403b2d72888941112681a50c6d92949b91e438ae0b23e3c4bb0251d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0e5eb2c4a7cfbfc3efc4b8281d321003f6692877d5fb95789a7faa0ffd624c8
[INFO] running `Command { std: "docker" "start" "-a" "b0e5eb2c4a7cfbfc3efc4b8281d321003f6692877d5fb95789a7faa0ffd624c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling tailcall v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.12s
[INFO] running `Command { std: "docker" "inspect" "b0e5eb2c4a7cfbfc3efc4b8281d321003f6692877d5fb95789a7faa0ffd624c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0e5eb2c4a7cfbfc3efc4b8281d321003f6692877d5fb95789a7faa0ffd624c8", kill_on_drop: false }`
[INFO] [stdout] b0e5eb2c4a7cfbfc3efc4b8281d321003f6692877d5fb95789a7faa0ffd624c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f490d7972cdf1c0b321851d98d28db553b3804b2b72b7089b377f10b928b476e
[INFO] running `Command { std: "docker" "start" "-a" "f490d7972cdf1c0b321851d98d28db553b3804b2b72b7089b377f10b928b476e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tailcall-42425b053292e83b)
[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]      Running tests/correctness.rs (/opt/rustwide/target/debug/deps/correctness-1edef9487a2cd501)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_factorial_correctness ... ok
[INFO] [stdout] test test_memoized_factorial_correctness ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/correctness_option.rs (/opt/rustwide/target/debug/deps/correctness_option-608d38c6b0ac8816)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test factorial_option_runs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/correctness_result.rs (/opt/rustwide/target/debug/deps/correctness_result-153cf9aa1df73c63)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test factorial_result_runs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/stack_depth.rs (/opt/rustwide/target/debug/deps/stack_depth-ad46caed8fdc55fc)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_tail_recusive_calls_do_not_result_in_new_stack_frames ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tailcall
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 40) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] test src/trampoline.rs - trampoline (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f490d7972cdf1c0b321851d98d28db553b3804b2b72b7089b377f10b928b476e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f490d7972cdf1c0b321851d98d28db553b3804b2b72b7089b377f10b928b476e", kill_on_drop: false }`
[INFO] [stdout] f490d7972cdf1c0b321851d98d28db553b3804b2b72b7089b377f10b928b476e