[INFO] fetching crate rust-tailcall 0.2.0...
[INFO] testing rust-tailcall-0.2.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate rust-tailcall 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate rust-tailcall 0.2.0
[INFO] finished tweaking crates.io crate rust-tailcall 0.2.0
[INFO] tweaked toml for crates.io crate rust-tailcall 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-tailcall 0.2.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust-tailcall 0.2.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbefc7467ead93c14a6126479587a794dbd4956c16ac636b6500bb6b3645b19d
[INFO] running `Command { std: "docker" "start" "-a" "cbefc7467ead93c14a6126479587a794dbd4956c16ac636b6500bb6b3645b19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbefc7467ead93c14a6126479587a794dbd4956c16ac636b6500bb6b3645b19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbefc7467ead93c14a6126479587a794dbd4956c16ac636b6500bb6b3645b19d", kill_on_drop: false }`
[INFO] [stdout] cbefc7467ead93c14a6126479587a794dbd4956c16ac636b6500bb6b3645b19d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b447d578fb5bb319ee4de27ac86cd20e60de28adb4afdf6d75e22e095065a81
[INFO] running `Command { std: "docker" "start" "-a" "3b447d578fb5bb319ee4de27ac86cd20e60de28adb4afdf6d75e22e095065a81", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-tailcall v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "3b447d578fb5bb319ee4de27ac86cd20e60de28adb4afdf6d75e22e095065a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b447d578fb5bb319ee4de27ac86cd20e60de28adb4afdf6d75e22e095065a81", kill_on_drop: false }`
[INFO] [stdout] 3b447d578fb5bb319ee4de27ac86cd20e60de28adb4afdf6d75e22e095065a81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0db159eb51fab5590a34bd05f0148c2d343a77d1c7aa9ff374e0c1f320496814
[INFO] running `Command { std: "docker" "start" "-a" "0db159eb51fab5590a34bd05f0148c2d343a77d1c7aa9ff374e0c1f320496814", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling rust-tailcall v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "0db159eb51fab5590a34bd05f0148c2d343a77d1c7aa9ff374e0c1f320496814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0db159eb51fab5590a34bd05f0148c2d343a77d1c7aa9ff374e0c1f320496814", kill_on_drop: false }`
[INFO] [stdout] 0db159eb51fab5590a34bd05f0148c2d343a77d1c7aa9ff374e0c1f320496814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 927654ce247e6481cedab8e459417779a41fbf71035705d83cb38de39b23bb3e
[INFO] running `Command { std: "docker" "start" "-a" "927654ce247e6481cedab8e459417779a41fbf71035705d83cb38de39b23bb3e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_tailcall-0e10139031508e2c)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_tailcall
[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] [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" "927654ce247e6481cedab8e459417779a41fbf71035705d83cb38de39b23bb3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "927654ce247e6481cedab8e459417779a41fbf71035705d83cb38de39b23bb3e", kill_on_drop: false }`
[INFO] [stdout] 927654ce247e6481cedab8e459417779a41fbf71035705d83cb38de39b23bb3e