[INFO] fetching crate snapdown 1.0.0...
[INFO] checking snapdown-1.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate snapdown 1.0.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate snapdown 1.0.0 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 snapdown 1.0.0
[INFO] finished tweaking crates.io crate snapdown 1.0.0
[INFO] tweaked toml for crates.io crate snapdown 1.0.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 104 packages
[INFO] [stderr]       Adding anes v0.1.6 (latest: v0.2.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding bstr v0.2.17 (latest: v1.9.1)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding clap v3.2.25 (latest: v4.5.4)
[INFO] [stderr]       Adding clap_derive v3.2.25 (latest: v4.5.4)
[INFO] [stderr]       Adding clap_lex v0.2.4 (latest: v0.7.0)
[INFO] [stderr]       Adding criterion v0.4.0 (latest: v0.5.1)
[INFO] [stderr]       Adding datatest-stable v0.1.3 (latest: v0.2.3)
[INFO] [stderr]       Adding encode_unicode v0.3.6 (latest: v1.0.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.3.3 (latest: v0.5.0)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding libtest-mimic v0.5.2 (latest: v0.7.0)
[INFO] [stderr]       Adding os_str_bytes v6.6.1 (latest: v7.0.0)
[INFO] [stderr]       Adding regex-automata v0.1.10 (latest: v0.4.6)
[INFO] [stderr]       Adding strsim v0.8.0 (latest: v0.11.1)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded datatest-stable v0.1.3
[INFO] [stderr]   Downloaded similar-asserts v1.5.0
[INFO] [stderr]   Downloaded libtest-mimic v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c3f10678547b3b5a78432578fadac7df6021da195898408f32802fd262c027a6
[INFO] running `Command { std: "docker" "start" "-a" "c3f10678547b3b5a78432578fadac7df6021da195898408f32802fd262c027a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3f10678547b3b5a78432578fadac7df6021da195898408f32802fd262c027a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3f10678547b3b5a78432578fadac7df6021da195898408f32802fd262c027a6", kill_on_drop: false }`
[INFO] [stdout] c3f10678547b3b5a78432578fadac7df6021da195898408f32802fd262c027a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] eb9f54874ce9db41384ab38803cc0de9a5bc0e55fc0f068013f23f69a8d3fe13
[INFO] running `Command { std: "docker" "start" "-a" "eb9f54874ce9db41384ab38803cc0de9a5bc0e55fc0f068013f23f69a8d3fe13", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking textwrap v0.16.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking similar v2.5.0
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking similar-asserts v1.5.0
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking libtest-mimic v0.5.2
[INFO] [stderr]     Checking datatest-stable v0.1.3
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stderr]     Checking snapdown v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.38s
[INFO] running `Command { std: "docker" "inspect" "eb9f54874ce9db41384ab38803cc0de9a5bc0e55fc0f068013f23f69a8d3fe13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb9f54874ce9db41384ab38803cc0de9a5bc0e55fc0f068013f23f69a8d3fe13", kill_on_drop: false }`
[INFO] [stdout] eb9f54874ce9db41384ab38803cc0de9a5bc0e55fc0f068013f23f69a8d3fe13
[INFO] checking snapdown-1.0.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate snapdown 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate snapdown 1.0.0 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 snapdown 1.0.0
[INFO] finished tweaking crates.io crate snapdown 1.0.0
[INFO] tweaked toml for crates.io crate snapdown 1.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b94d526fb2247b46b44c5e45f8206d13eecf44e781ef24dab86e3018166fe321
[INFO] running `Command { std: "docker" "start" "-a" "b94d526fb2247b46b44c5e45f8206d13eecf44e781ef24dab86e3018166fe321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b94d526fb2247b46b44c5e45f8206d13eecf44e781ef24dab86e3018166fe321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b94d526fb2247b46b44c5e45f8206d13eecf44e781ef24dab86e3018166fe321", kill_on_drop: false }`
[INFO] [stdout] b94d526fb2247b46b44c5e45f8206d13eecf44e781ef24dab86e3018166fe321
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4458ec2ea27df71adea9ecebca11ba54de9095db0aea58e2cf934c59d9e4b65d
[INFO] running `Command { std: "docker" "start" "-a" "4458ec2ea27df71adea9ecebca11ba54de9095db0aea58e2cf934c59d9e4b65d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking textwrap v0.16.1
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking similar v2.5.0
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking similar-asserts v1.5.0
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking libtest-mimic v0.5.2
[INFO] [stderr]     Checking datatest-stable v0.1.3
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stderr]     Checking snapdown v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.14s
[INFO] running `Command { std: "docker" "inspect" "4458ec2ea27df71adea9ecebca11ba54de9095db0aea58e2cf934c59d9e4b65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4458ec2ea27df71adea9ecebca11ba54de9095db0aea58e2cf934c59d9e4b65d", kill_on_drop: false }`
[INFO] [stdout] 4458ec2ea27df71adea9ecebca11ba54de9095db0aea58e2cf934c59d9e4b65d