[INFO] fetching crate acme-lib 0.9.0...
[INFO] checking acme-lib-0.9.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate acme-lib 0.9.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate acme-lib 0.9.0 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 acme-lib 0.9.0
[INFO] finished tweaking crates.io crate acme-lib 0.9.0
[INFO] tweaked toml for crates.io crate acme-lib 0.9.0 written to /workspace/builds/worker-6-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 128 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding bytes v0.4.12 (latest: v1.6.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding cloudabi v0.0.3 (latest: v0.1.0)
[INFO] [stderr]       Adding crossbeam-deque v0.7.4 (latest: v0.8.5)
[INFO] [stderr]       Adding crossbeam-epoch v0.8.2 (latest: v0.9.18)
[INFO] [stderr]       Adding crossbeam-queue v0.2.3 (latest: v0.3.11)
[INFO] [stderr]       Adding crossbeam-utils v0.7.2 (latest: v0.8.19)
[INFO] [stderr]       Adding env_logger v0.7.1 (latest: v0.11.3)
[INFO] [stderr]       Adding foreign-types v0.3.2 (latest: v0.5.0)
[INFO] [stderr]       Adding foreign-types-shared v0.1.1 (latest: v0.3.1)
[INFO] [stderr]       Adding futures v0.1.31 (latest: v0.3.30)
[INFO] [stderr]       Adding h2 v0.1.26 (latest: v0.4.4)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding http v0.1.21 (latest: v1.1.0)
[INFO] [stderr]       Adding http-body v0.1.0 (latest: v1.0.0)
[INFO] [stderr]       Adding hyper v0.12.36 (latest: v1.2.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itoa v0.4.8 (latest: v1.0.11)
[INFO] [stderr]       Adding lock_api v0.3.4 (latest: v0.4.11)
[INFO] [stderr]       Adding memoffset v0.5.6 (latest: v0.9.1)
[INFO] [stderr]       Adding mio v0.6.23 (latest: v0.8.11)
[INFO] [stderr]       Adding miow v0.2.2 (latest: v0.6.0)
[INFO] [stderr]       Adding parking_lot v0.9.0 (latest: v0.12.1)
[INFO] [stderr]       Adding parking_lot_core v0.6.3 (latest: v0.9.9)
[INFO] [stderr]       Adding redox_syscall v0.1.57 (latest: v0.5.1)
[INFO] [stderr]       Adding rustc_version v0.2.3 (latest: v0.4.0)
[INFO] [stderr]       Adding rustls v0.22.3 (latest: v0.23.4)
[INFO] [stderr]       Adding semver v0.9.0 (latest: v1.0.22)
[INFO] [stderr]       Adding semver-parser v0.7.0 (latest: v0.10.2)
[INFO] [stderr]       Adding smallvec v0.6.14 (latest: v1.13.2)
[INFO] [stderr]       Adding string v0.2.1 (latest: v0.3.0)
[INFO] [stderr]       Adding time v0.1.45 (latest: v0.3.34)
[INFO] [stderr]       Adding tokio v0.1.22 (latest: v1.37.0)
[INFO] [stderr]       Adding want v0.2.0 (latest: v0.3.1)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[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 want v0.2.0
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.18
[INFO] [stderr]   Downloaded memoffset v0.5.6
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.2
[INFO] [stderr]   Downloaded http-body v0.1.0
[INFO] [stderr]   Downloaded futures-cpupool v0.1.8
[INFO] [stderr]   Downloaded http v0.1.21
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.7
[INFO] [stderr]   Downloaded tokio v0.1.22
[INFO] [stderr]   Downloaded futures v0.1.31
[INFO] [stderr]   Downloaded hyper v0.12.36
[INFO] [stderr]   Downloaded tokio-buf v0.1.1
[INFO] [stderr]   Downloaded lock_api v0.3.4
[INFO] [stderr]   Downloaded parking_lot_core v0.6.3
[INFO] [stderr]   Downloaded parking_lot v0.9.0
[INFO] [stderr]   Downloaded bytes v0.4.12
[INFO] [stderr]   Downloaded tokio-io v0.1.13
[INFO] [stderr]   Downloaded tokio-sync v0.1.8
[INFO] [stderr]   Downloaded tokio-tcp v0.1.4
[INFO] [stderr]   Downloaded string v0.2.1
[INFO] [stderr]   Downloaded h2 v0.1.26
[INFO] [stderr]   Downloaded crossbeam-epoch v0.8.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.4
[INFO] [stderr]   Downloaded smallvec v0.6.14
[INFO] [stderr]   Downloaded tokio-reactor v0.1.12
[INFO] [stderr]   Downloaded maybe-uninit v2.0.0
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.3
[INFO] [stderr]   Downloaded tokio-timer v0.2.13
[INFO] [stderr]   Downloaded tokio-executor v0.1.10
[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] 4c31d03e9bd348c0f1faca1099a46d6330f9e3e727dab7c51d4dd90398621cd4
[INFO] running `Command { std: "docker" "start" "-a" "4c31d03e9bd348c0f1faca1099a46d6330f9e3e727dab7c51d4dd90398621cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c31d03e9bd348c0f1faca1099a46d6330f9e3e727dab7c51d4dd90398621cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c31d03e9bd348c0f1faca1099a46d6330f9e3e727dab7c51d4dd90398621cd4", kill_on_drop: false }`
[INFO] [stdout] 4c31d03e9bd348c0f1faca1099a46d6330f9e3e727dab7c51d4dd90398621cd4
[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] d2cddfd0e1e4f1cb20669ea1733f3a516640fa2bf3d93cce113acd6ba71b0942
[INFO] running `Command { std: "docker" "start" "-a" "d2cddfd0e1e4f1cb20669ea1733f3a516640fa2bf3d93cce113acd6ba71b0942", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking rustls-pki-types v1.4.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling rustls v0.22.3
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking webpki-roots v0.26.1
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling openssl-sys v0.9.102
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking rustls-webpki v0.102.2
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking ureq v2.9.6
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking acme-lib v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.54s
[INFO] running `Command { std: "docker" "inspect" "d2cddfd0e1e4f1cb20669ea1733f3a516640fa2bf3d93cce113acd6ba71b0942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2cddfd0e1e4f1cb20669ea1733f3a516640fa2bf3d93cce113acd6ba71b0942", kill_on_drop: false }`
[INFO] [stdout] d2cddfd0e1e4f1cb20669ea1733f3a516640fa2bf3d93cce113acd6ba71b0942