[INFO] fetching crate try-let 0.2.0...
[INFO] testing try-let-0.2.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate try-let 0.2.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate try-let 0.2.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate try-let 0.2.0
[INFO] finished tweaking crates.io crate try-let 0.2.0
[INFO] tweaked toml for crates.io crate try-let 0.2.0 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8eaaa2963281c75b0f9cdf854d60caa9ca3d98e72da99d1b1da4f97b5958e0f
[INFO] running `Command { std: "docker" "start" "-a" "d8eaaa2963281c75b0f9cdf854d60caa9ca3d98e72da99d1b1da4f97b5958e0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8eaaa2963281c75b0f9cdf854d60caa9ca3d98e72da99d1b1da4f97b5958e0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8eaaa2963281c75b0f9cdf854d60caa9ca3d98e72da99d1b1da4f97b5958e0f", kill_on_drop: false }`
[INFO] [stdout] d8eaaa2963281c75b0f9cdf854d60caa9ca3d98e72da99d1b1da4f97b5958e0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d2d5d95f99714f5378d0f99c0e5dac0d5f6e2b2775cb7d59311424dce0598d0
[INFO] running `Command { std: "docker" "start" "-a" "5d2d5d95f99714f5378d0f99c0e5dac0d5f6e2b2775cb7d59311424dce0598d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling try-let v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.41s
[INFO] running `Command { std: "docker" "inspect" "5d2d5d95f99714f5378d0f99c0e5dac0d5f6e2b2775cb7d59311424dce0598d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d2d5d95f99714f5378d0f99c0e5dac0d5f6e2b2775cb7d59311424dce0598d0", kill_on_drop: false }`
[INFO] [stdout] 5d2d5d95f99714f5378d0f99c0e5dac0d5f6e2b2775cb7d59311424dce0598d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ee344502d70a4cf503ed4ce75e48d24e1278ada07cb1343569877c432df4ba8
[INFO] running `Command { std: "docker" "start" "-a" "3ee344502d70a4cf503ed4ce75e48d24e1278ada07cb1343569877c432df4ba8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling try-let v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `bindings_after_at` has been stable since 1.56.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> tests/bindings_after_at.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(bindings_after_at)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "3ee344502d70a4cf503ed4ce75e48d24e1278ada07cb1343569877c432df4ba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ee344502d70a4cf503ed4ce75e48d24e1278ada07cb1343569877c432df4ba8", kill_on_drop: false }`
[INFO] [stdout] 3ee344502d70a4cf503ed4ce75e48d24e1278ada07cb1343569877c432df4ba8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7eb0268f5703b9ffbd9ed3b763ec90c7c7353dbb7682c9dfa35f6b8c2f33d42f
[INFO] running `Command { std: "docker" "start" "-a" "7eb0268f5703b9ffbd9ed3b763ec90c7c7353dbb7682c9dfa35f6b8c2f33d42f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: the feature `bindings_after_at` has been stable since 1.56.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> tests/bindings_after_at.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(bindings_after_at)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `try-let` (test "bindings_after_at") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/try_let-872efab980c448d2)
[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/basic_use.rs (/opt/rustwide/target/debug/deps/basic_use-b64330923b153ecd)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test basic ... ok
[INFO] [stdout] test tuple ... 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/bindings_after_at.rs (/opt/rustwide/target/debug/deps/bindings_after_at-d29e62501f163ddc)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test bindings_after_at ... 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 try-let
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/lib.rs - (line 98) ... ok
[INFO] [stdout] test src/lib.rs - (line 74) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7eb0268f5703b9ffbd9ed3b763ec90c7c7353dbb7682c9dfa35f6b8c2f33d42f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eb0268f5703b9ffbd9ed3b763ec90c7c7353dbb7682c9dfa35f6b8c2f33d42f", kill_on_drop: false }`
[INFO] [stdout] 7eb0268f5703b9ffbd9ed3b763ec90c7c7353dbb7682c9dfa35f6b8c2f33d42f