[INFO] fetching crate minidumper-child 0.2.1...
[INFO] checking minidumper-child-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate minidumper-child 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate minidumper-child 0.2.1 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 minidumper-child 0.2.1
[INFO] finished tweaking crates.io crate minidumper-child 0.2.1
[INFO] tweaked toml for crates.io crate minidumper-child 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate minidumper-child 0.2.1 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]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-primitive-derive v0.2.2
[INFO] [stderr]   Downloaded procfs-core v0.16.0-RC1
[INFO] [stderr]   Downloaded minidumper v0.8.0
[INFO] [stderr]   Downloaded sadness-generator v0.5.0
[INFO] [stderr]   Downloaded mach2 v0.4.1
[INFO] [stderr]   Downloaded crash-handler v0.6.0
[INFO] [stderr]   Downloaded minidump-common v0.17.0
[INFO] [stderr]   Downloaded syn v2.0.22
[INFO] [stderr]   Downloaded minidump-writer v0.8.1
[INFO] [stderr]   Downloaded crash-context v0.6.1
[INFO] [stderr]   Downloaded memmap2 v0.5.5
[INFO] [stderr]   Downloaded uds v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e2f9ede7b0269ce60b05d7143b76f7ba1d65574fd08e5597d7ff03392653ecd4
[INFO] running `Command { std: "docker" "start" "-a" "e2f9ede7b0269ce60b05d7143b76f7ba1d65574fd08e5597d7ff03392653ecd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2f9ede7b0269ce60b05d7143b76f7ba1d65574fd08e5597d7ff03392653ecd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2f9ede7b0269ce60b05d7143b76f7ba1d65574fd08e5597d7ff03392653ecd4", kill_on_drop: false }`
[INFO] [stdout] e2f9ede7b0269ce60b05d7143b76f7ba1d65574fd08e5597d7ff03392653ecd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6e8168a8848e2d2b3faebb45cf9e72b89ea038eb0d2c78403e12c8e758e57521
[INFO] running `Command { std: "docker" "start" "-a" "6e8168a8848e2d2b3faebb45cf9e72b89ea038eb0d2c78403e12c8e758e57521", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling minidump-writer v0.8.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking range-map v0.2.0
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking crash-context v0.6.1
[INFO] [stderr]     Checking parking_lot_core v0.9.3
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking memmap2 v0.5.5
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking uds v0.2.6
[INFO] [stderr]     Checking sadness-generator v0.5.0
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking debugid v0.8.0
[INFO] [stderr]     Checking crash-handler v0.6.0
[INFO] [stderr]     Checking procfs-core v0.16.0-RC1
[INFO] [stderr]    Compiling scroll_derive v0.11.0
[INFO] [stderr]    Compiling enum-primitive-derive v0.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]     Checking scroll v0.11.0
[INFO] [stderr]     Checking goblin v0.7.1
[INFO] [stderr]     Checking minidump-common v0.17.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking minidumper v0.8.0
[INFO] [stderr]     Checking minidumper-child v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.42s
[INFO] running `Command { std: "docker" "inspect" "6e8168a8848e2d2b3faebb45cf9e72b89ea038eb0d2c78403e12c8e758e57521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e8168a8848e2d2b3faebb45cf9e72b89ea038eb0d2c78403e12c8e758e57521", kill_on_drop: false }`
[INFO] [stdout] 6e8168a8848e2d2b3faebb45cf9e72b89ea038eb0d2c78403e12c8e758e57521
[INFO] checking minidumper-child-0.2.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate minidumper-child 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate minidumper-child 0.2.1 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 minidumper-child 0.2.1
[INFO] finished tweaking crates.io crate minidumper-child 0.2.1
[INFO] tweaked toml for crates.io crate minidumper-child 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate minidumper-child 0.2.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0bf622d43f516cb005b574071f3e8736b2502487d784bfb6d29b788bfcfdda24
[INFO] running `Command { std: "docker" "start" "-a" "0bf622d43f516cb005b574071f3e8736b2502487d784bfb6d29b788bfcfdda24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bf622d43f516cb005b574071f3e8736b2502487d784bfb6d29b788bfcfdda24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf622d43f516cb005b574071f3e8736b2502487d784bfb6d29b788bfcfdda24", kill_on_drop: false }`
[INFO] [stdout] 0bf622d43f516cb005b574071f3e8736b2502487d784bfb6d29b788bfcfdda24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7d1efe73770dc1c28483af4392dcd90accd333cbbd1d8b0d68145715e8a31ca8
[INFO] running `Command { std: "docker" "start" "-a" "7d1efe73770dc1c28483af4392dcd90accd333cbbd1d8b0d68145715e8a31ca8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]    Compiling minidump-writer v0.8.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking range-map v0.2.0
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking crash-context v0.6.1
[INFO] [stderr]     Checking parking_lot_core v0.9.3
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking memmap2 v0.5.5
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking uds v0.2.6
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking sadness-generator v0.5.0
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking debugid v0.8.0
[INFO] [stderr]     Checking crash-handler v0.6.0
[INFO] [stderr]     Checking procfs-core v0.16.0-RC1
[INFO] [stderr]    Compiling scroll_derive v0.11.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling enum-primitive-derive v0.2.2
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]     Checking scroll v0.11.0
[INFO] [stderr]     Checking goblin v0.7.1
[INFO] [stderr]     Checking minidump-common v0.17.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking minidumper v0.8.0
[INFO] [stderr]     Checking minidumper-child v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.79s
[INFO] running `Command { std: "docker" "inspect" "7d1efe73770dc1c28483af4392dcd90accd333cbbd1d8b0d68145715e8a31ca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d1efe73770dc1c28483af4392dcd90accd333cbbd1d8b0d68145715e8a31ca8", kill_on_drop: false }`
[INFO] [stdout] 7d1efe73770dc1c28483af4392dcd90accd333cbbd1d8b0d68145715e8a31ca8