[INFO] fetching crate postfix-macros 0.1.0...
[INFO] checking postfix-macros-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate postfix-macros 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate postfix-macros 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate postfix-macros 0.1.0
[INFO] finished tweaking crates.io crate postfix-macros 0.1.0
[INFO] tweaked toml for crates.io crate postfix-macros 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate postfix-macros 0.1.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded postfix-macros-impl v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e8e59cb02dc230c8cea8b42692ddbd60b54b6f2fa90479aac87a9a077048a38
[INFO] running `Command { std: "docker" "start" "-a" "7e8e59cb02dc230c8cea8b42692ddbd60b54b6f2fa90479aac87a9a077048a38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e8e59cb02dc230c8cea8b42692ddbd60b54b6f2fa90479aac87a9a077048a38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e8e59cb02dc230c8cea8b42692ddbd60b54b6f2fa90479aac87a9a077048a38", kill_on_drop: false }`
[INFO] [stdout] 7e8e59cb02dc230c8cea8b42692ddbd60b54b6f2fa90479aac87a9a077048a38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfd7632a5c7200c37622a9ed2a4997982c657b9dcb1fef031da36df447815c1a
[INFO] running `Command { std: "docker" "start" "-a" "bfd7632a5c7200c37622a9ed2a4997982c657b9dcb1fef031da36df447815c1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling postfix-macros-impl v0.1.0
[INFO] [stderr]     Checking postfix-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/simple.rs:87:3
[INFO] [stdout]    |
[INFO] [stdout] 87 |         &().no_comma_pattern_macro!();
[INFO] [stdout]    |         ^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let _ = &();.no_comma_pattern_macro!();
[INFO] [stdout]    |         +++++++    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "bfd7632a5c7200c37622a9ed2a4997982c657b9dcb1fef031da36df447815c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfd7632a5c7200c37622a9ed2a4997982c657b9dcb1fef031da36df447815c1a", kill_on_drop: false }`
[INFO] [stdout] bfd7632a5c7200c37622a9ed2a4997982c657b9dcb1fef031da36df447815c1a
[INFO] checking postfix-macros-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate postfix-macros 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate postfix-macros 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate postfix-macros 0.1.0
[INFO] finished tweaking crates.io crate postfix-macros 0.1.0
[INFO] tweaked toml for crates.io crate postfix-macros 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate postfix-macros 0.1.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad9b98b298820013769bc82c3206ece785e61392961da2e7cdb82d9c3a5480ce
[INFO] running `Command { std: "docker" "start" "-a" "ad9b98b298820013769bc82c3206ece785e61392961da2e7cdb82d9c3a5480ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad9b98b298820013769bc82c3206ece785e61392961da2e7cdb82d9c3a5480ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad9b98b298820013769bc82c3206ece785e61392961da2e7cdb82d9c3a5480ce", kill_on_drop: false }`
[INFO] [stdout] ad9b98b298820013769bc82c3206ece785e61392961da2e7cdb82d9c3a5480ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f4b6f8dc3d040e7e79ef1918e7abca93fc7a1f871abdafa7024388a45bd81df
[INFO] running `Command { std: "docker" "start" "-a" "9f4b6f8dc3d040e7e79ef1918e7abca93fc7a1f871abdafa7024388a45bd81df", kill_on_drop: false }`
[INFO] [stderr]    Compiling postfix-macros-impl v0.1.0
[INFO] [stderr]     Checking postfix-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/simple.rs:87:3
[INFO] [stdout]    |
[INFO] [stdout] 87 |         &().no_comma_pattern_macro!();
[INFO] [stdout]    |         ^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let _ = &();.no_comma_pattern_macro!();
[INFO] [stdout]    |         +++++++    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "9f4b6f8dc3d040e7e79ef1918e7abca93fc7a1f871abdafa7024388a45bd81df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f4b6f8dc3d040e7e79ef1918e7abca93fc7a1f871abdafa7024388a45bd81df", kill_on_drop: false }`
[INFO] [stdout] 9f4b6f8dc3d040e7e79ef1918e7abca93fc7a1f871abdafa7024388a45bd81df