[INFO] fetching crate serde_piecewise_default 0.2.0...
[INFO] checking serde_piecewise_default-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate serde_piecewise_default 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate serde_piecewise_default 0.2.0 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 serde_piecewise_default 0.2.0
[INFO] finished tweaking crates.io crate serde_piecewise_default 0.2.0
[INFO] tweaked toml for crates.io crate serde_piecewise_default 0.2.0 written to /workspace/builds/worker-7-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 69 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding compiletest_rs v0.3.26 (latest: v0.10.2)
[INFO] [stderr]       Adding dirs v2.0.2 (latest: v5.0.1)
[INFO] [stderr]       Adding dirs-sys v0.3.7 (latest: v0.4.1)
[INFO] [stderr]       Adding miow v0.3.7 (latest: v0.6.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.79)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.35)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding rustfix v0.4.6 (latest: v0.8.1)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.58)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] [stderr]       Adding term v0.6.1 (latest: v0.7.0)
[INFO] [stderr]       Adding tester v0.6.0 (latest: v0.9.1)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.4)
[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 serde_piecewise_default_derive v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fba94736fa901a919020ae40bb2f4c18c81cabef1fe6d8213df505a88f7bab11
[INFO] running `Command { std: "docker" "start" "-a" "fba94736fa901a919020ae40bb2f4c18c81cabef1fe6d8213df505a88f7bab11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fba94736fa901a919020ae40bb2f4c18c81cabef1fe6d8213df505a88f7bab11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba94736fa901a919020ae40bb2f4c18c81cabef1fe6d8213df505a88f7bab11", kill_on_drop: false }`
[INFO] [stdout] fba94736fa901a919020ae40bb2f4c18c81cabef1fe6d8213df505a88f7bab11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 5960238611e8462760d7bada1070972349cfec94b938d4d0e89bd08bc217dc52
[INFO] running `Command { std: "docker" "start" "-a" "5960238611e8462760d7bada1070972349cfec94b938d4d0e89bd08bc217dc52", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling compiletest_rs v0.3.26
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking filetime v0.2.23
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking tester v0.6.0
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling serde_piecewise_default_derive v0.2.0
[INFO] [stderr]     Checking rustfix v0.4.6
[INFO] [stderr]     Checking serde_piecewise_default v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.76s
[INFO] running `Command { std: "docker" "inspect" "5960238611e8462760d7bada1070972349cfec94b938d4d0e89bd08bc217dc52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5960238611e8462760d7bada1070972349cfec94b938d4d0e89bd08bc217dc52", kill_on_drop: false }`
[INFO] [stdout] 5960238611e8462760d7bada1070972349cfec94b938d4d0e89bd08bc217dc52