[INFO] fetching crate menser 0.1.31...
[INFO] checking menser-0.1.31 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate menser 0.1.31 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate menser 0.1.31 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 menser 0.1.31
[INFO] finished tweaking crates.io crate menser 0.1.31
[INFO] tweaked toml for crates.io crate menser 0.1.31 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate menser 0.1.31 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 quote v1.0.29
[INFO] [stderr]   Downloaded darling_macro v0.20.1
[INFO] [stderr]   Downloaded rustls-webpki v0.100.1
[INFO] [stderr]   Downloaded cli-table-derive v0.4.5
[INFO] [stderr]   Downloaded pad v0.1.6
[INFO] [stderr]   Downloaded cli-table v0.4.7
[INFO] [stderr]   Downloaded rustls v0.21.2
[INFO] [stderr]   Downloaded eyre v0.6.8
[INFO] [stderr]   Downloaded serde_with v3.0.0
[INFO] [stderr]   Downloaded color-eyre v0.6.2
[INFO] [stderr]   Downloaded darling_core v0.20.1
[INFO] [stderr]   Downloaded darling v0.20.1
[INFO] [stderr]   Downloaded serde_with_macros v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cf1b31f7256275897b7b53e6673ec7ca92a149d15b30afa19c8296d59a42d972
[INFO] running `Command { std: "docker" "start" "-a" "cf1b31f7256275897b7b53e6673ec7ca92a149d15b30afa19c8296d59a42d972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf1b31f7256275897b7b53e6673ec7ca92a149d15b30afa19c8296d59a42d972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf1b31f7256275897b7b53e6673ec7ca92a149d15b30afa19c8296d59a42d972", kill_on_drop: false }`
[INFO] [stdout] cf1b31f7256275897b7b53e6673ec7ca92a149d15b30afa19c8296d59a42d972
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2ced3c590663a33e1ab89dd56f6edfbb407c32701a97430dc4aa3bdf645b4d14
[INFO] running `Command { std: "docker" "start" "-a" "2ced3c590663a33e1ab89dd56f6edfbb407c32701a97430dc4aa3bdf645b4d14", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking gimli v0.27.3
[INFO] [stderr]     Checking object v0.31.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking time-core v0.1.1
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]    Compiling syn v2.0.22
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking time v0.3.23
[INFO] [stderr]     Checking pad v0.1.6
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]     Checking addr2line v0.20.0
[INFO] [stderr]    Compiling cli-table-derive v0.4.5
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]    Compiling darling_core v0.20.1
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling darling_macro v0.20.1
[INFO] [stderr]    Compiling darling v0.20.1
[INFO] [stderr]    Compiling serde_with_macros v3.0.0
[INFO] [stderr]     Checking serde v1.0.164
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking serde_with v3.0.0
[INFO] [stderr]     Checking cli-table v0.4.7
[INFO] [stderr]     Checking menser v0.1.31 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.83s
[INFO] running `Command { std: "docker" "inspect" "2ced3c590663a33e1ab89dd56f6edfbb407c32701a97430dc4aa3bdf645b4d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ced3c590663a33e1ab89dd56f6edfbb407c32701a97430dc4aa3bdf645b4d14", kill_on_drop: false }`
[INFO] [stdout] 2ced3c590663a33e1ab89dd56f6edfbb407c32701a97430dc4aa3bdf645b4d14