[INFO] fetching crate redoxer 0.2.36...
[INFO] checking redoxer-0.2.36 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate redoxer 0.2.36 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate redoxer 0.2.36 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] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate redoxer 0.2.36
[INFO] finished tweaking crates.io crate redoxer 0.2.36
[INFO] tweaked toml for crates.io crate redoxer 0.2.36 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate redoxer 0.2.36 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 redox_syscall v0.4.0
[INFO] [stderr]   Downloaded redoxfs v0.5.8
[INFO] [stderr]   Downloaded users v0.11.0
[INFO] [stderr]   Downloaded zerocopy v0.6.4
[INFO] [stderr]   Downloaded fscommon v0.1.1
[INFO] [stderr]   Downloaded partition-identity v0.3.0
[INFO] [stderr]   Downloaded pkgar-core v0.1.11
[INFO] [stderr]   Downloaded proc-mounts v0.3.0
[INFO] [stderr]   Downloaded gpt v3.1.0
[INFO] [stderr]   Downloaded fatfs v0.3.6
[INFO] [stderr]   Downloaded blake3 v0.3.8
[INFO] [stderr]   Downloaded rustls v0.13.1
[INFO] [stderr]   Downloaded webpki-roots v0.15.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.6.4
[INFO] [stderr]   Downloaded webpki v0.18.1
[INFO] [stderr]   Downloaded crc-catalog v2.2.0
[INFO] [stderr]   Downloaded pkgar v0.1.11
[INFO] [stderr]   Downloaded sct v0.4.0
[INFO] [stderr]   Downloaded hyper-rustls v0.6.2
[INFO] [stderr]   Downloaded libflate v0.1.27
[INFO] [stderr]   Downloaded redox_liner v0.5.1
[INFO] [stderr]   Downloaded sodiumoxide v0.2.7
[INFO] [stderr]   Downloaded arg_parser v0.1.0
[INFO] [stderr]   Downloaded redox_pkgutils v0.1.6
[INFO] [stderr]   Downloaded argon2 v0.3.4
[INFO] [stderr]   Downloaded memsec v0.6.3
[INFO] [stderr]   Downloaded user-error v1.2.8
[INFO] [stderr]   Downloaded pkgar-keys v0.1.11
[INFO] [stderr]   Downloaded ordermap v0.2.13
[INFO] [stderr]   Downloaded redox_installer v0.2.13
[INFO] [stderr]   Downloaded seckey v0.11.2
[INFO] [stderr]   Downloaded bidir-map v0.6.0
[INFO] [stderr]   Downloaded page_size v0.4.2
[INFO] [stderr]   Downloaded fuser v0.12.0
[INFO] [stderr]   Downloaded libsodium-sys v0.2.7
[INFO] [stderr]   Downloaded range-tree v0.1.0
[INFO] [stderr]   Downloaded redox_simple_endian v0.3.0
[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] 5b09811b934320f768457e8318479ecef69834bba1df21e1ac8f4bac28c3eaf6
[INFO] running `Command { std: "docker" "start" "-a" "5b09811b934320f768457e8318479ecef69834bba1df21e1ac8f4bac28c3eaf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b09811b934320f768457e8318479ecef69834bba1df21e1ac8f4bac28c3eaf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b09811b934320f768457e8318479ecef69834bba1df21e1ac8f4bac28c3eaf6", kill_on_drop: false }`
[INFO] [stdout] 5b09811b934320f768457e8318479ecef69834bba1df21e1ac8f4bac28c3eaf6
[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] ffd1b7e0373b208a4accd51cb1c93f4993e7935ab431839419adaac95c502149
[INFO] running `Command { std: "docker" "start" "-a" "ffd1b7e0373b208a4accd51cb1c93f4993e7935ab431839419adaac95c502149", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]     Checking signature v1.6.4
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking ed25519 v1.5.3
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling fuser v0.12.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking user-error v1.2.8
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]    Compiling redox_pkgutils v0.1.6
[INFO] [stderr]     Checking crc-catalog v2.2.0
[INFO] [stderr]     Checking keccak v0.1.4
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking rle-decode-fast v1.0.3
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]    Compiling rustix v0.38.11
[INFO] [stderr]     Checking bytecount v0.6.3
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking memsec v0.6.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking seckey v0.11.2
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking uuid v1.4.1
[INFO] [stderr]     Checking xattr v1.0.1
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking filetime v0.2.22
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tar v0.4.40
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking argon2 v0.3.4
[INFO] [stderr]     Checking redox_liner v0.5.1
[INFO] [stderr]     Checking chrono v0.4.30
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking pbr v1.1.1
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking crc v3.0.1
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking redox_syscall v0.4.0
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking redox_simple_endian v0.3.0
[INFO] [stderr]     Checking ordermap v0.2.13
[INFO] [stderr]     Checking version-compare v0.0.10
[INFO] [stderr]     Checking winnow v0.5.15
[INFO] [stderr]     Checking bidir-map v0.6.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking range-tree v0.1.0
[INFO] [stderr]     Checking gpt v3.1.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling libsodium-sys v0.2.7
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]     Checking rust-argon2 v0.8.3
[INFO] [stderr]     Checking fscommon v0.1.1
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking fatfs v0.3.6
[INFO] [stderr]     Checking arg_parser v0.1.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking error-chain v0.12.4
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling zerocopy-derive v0.6.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tempfile v3.8.0
[INFO] [stderr]     Checking zerocopy v0.6.4
[INFO] [stderr]     Checking partition-identity v0.3.0
[INFO] [stderr]     Checking proc-mounts v0.3.0
[INFO] [stderr]     Checking webpki v0.18.1
[INFO] [stderr]     Checking sct v0.4.0
[INFO] [stderr]     Checking rustls v0.13.1
[INFO] [stderr]     Checking webpki-roots v0.15.0
[INFO] [stderr]     Checking redoxfs v0.5.8
[INFO] [stderr]     Checking hyper-rustls v0.6.2
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking sodiumoxide v0.2.7
[INFO] [stderr]     Checking pkgar-keys v0.1.11
[INFO] [stderr]     Checking pkgar-core v0.1.11
[INFO] [stderr]     Checking pkgar v0.1.11
[INFO] [stderr]     Checking redox_installer v0.2.13
[INFO] [stderr]     Checking redoxer v0.2.36 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/exec.rs:166:17
[INFO] [stdout]     |
[INFO] [stdout] 166 |             let mut end_block = tx.header.size() / BLOCK_SIZE;
[INFO] [stdout]     |                 ----^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/exec.rs:166:17
[INFO] [stdout]     |
[INFO] [stdout] 166 |             let mut end_block = tx.header.size() / BLOCK_SIZE;
[INFO] [stdout]     |                 ----^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 26s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] running `Command { std: "docker" "inspect" "ffd1b7e0373b208a4accd51cb1c93f4993e7935ab431839419adaac95c502149", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffd1b7e0373b208a4accd51cb1c93f4993e7935ab431839419adaac95c502149", kill_on_drop: false }`
[INFO] [stdout] ffd1b7e0373b208a4accd51cb1c93f4993e7935ab431839419adaac95c502149