[INFO] fetching crate rust-releases-channel-manifests 0.27.0...
[INFO] checking rust-releases-channel-manifests-0.27.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rust-releases-channel-manifests 0.27.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate rust-releases-channel-manifests 0.27.0 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 rust-releases-channel-manifests 0.27.0
[INFO] finished tweaking crates.io crate rust-releases-channel-manifests 0.27.0
[INFO] tweaked toml for crates.io crate rust-releases-channel-manifests 0.27.0 written to /workspace/builds/worker-3-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]     Updating crates.io index
[INFO] [stderr]      Locking 60 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding rust-releases-core v0.27.0 (latest: v0.28.0)
[INFO] [stderr]       Adding rust-releases-io v0.27.1 (latest: v0.28.0)
[INFO] [stderr]       Adding rustls v0.22.3 (latest: v0.23.4)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded directories-next v2.0.0
[INFO] [stderr]   Downloaded rust-releases-core v0.27.0
[INFO] [stderr]   Downloaded rust-releases-io v0.27.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b24b402e2c96096d72921eaae451aa3e4432552bee704317bbce55a25aa69535
[INFO] running `Command { std: "docker" "start" "-a" "b24b402e2c96096d72921eaae451aa3e4432552bee704317bbce55a25aa69535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b24b402e2c96096d72921eaae451aa3e4432552bee704317bbce55a25aa69535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b24b402e2c96096d72921eaae451aa3e4432552bee704317bbce55a25aa69535", kill_on_drop: false }`
[INFO] [stdout] b24b402e2c96096d72921eaae451aa3e4432552bee704317bbce55a25aa69535
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 482bf1f595315fbcd0c1cbcb003d985a88955d5d1f4fd2060a460589fdb7ff29
[INFO] running `Command { std: "docker" "start" "-a" "482bf1f595315fbcd0c1cbcb003d985a88955d5d1f4fd2060a460589fdb7ff29", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking rustls-pki-types v1.4.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling rustls v0.22.3
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking webpki-roots v0.26.1
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking directories-next v2.0.0
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking rust-releases-core v0.27.0
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking rustls-webpki v0.102.2
[INFO] [stderr]     Checking ureq v2.9.6
[INFO] [stderr]     Checking rust-releases-io v0.27.1
[INFO] [stderr]     Checking rust-releases-channel-manifests v0.27.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.84s
[INFO] running `Command { std: "docker" "inspect" "482bf1f595315fbcd0c1cbcb003d985a88955d5d1f4fd2060a460589fdb7ff29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "482bf1f595315fbcd0c1cbcb003d985a88955d5d1f4fd2060a460589fdb7ff29", kill_on_drop: false }`
[INFO] [stdout] 482bf1f595315fbcd0c1cbcb003d985a88955d5d1f4fd2060a460589fdb7ff29