[INFO] fetching crate cranelift-simplejit 0.68.0...
[INFO] checking cranelift-simplejit-0.68.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate cranelift-simplejit 0.68.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate cranelift-simplejit 0.68.0 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 cranelift-simplejit 0.68.0
[INFO] finished tweaking crates.io crate cranelift-simplejit 0.68.0
[INFO] tweaked toml for crates.io crate cranelift-simplejit 0.68.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate cranelift-simplejit 0.68.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded target-lexicon v0.11.1
[INFO] [stderr]   Downloaded cranelift-native v0.68.0
[INFO] [stderr]   Downloaded gcc v0.3.55
[INFO] [stderr]   Downloaded errno v0.2.7
[INFO] [stderr]   Downloaded raw-cpuid v7.0.3
[INFO] [stderr]   Downloaded cranelift v0.68.0
[INFO] [stderr]   Downloaded errno-dragonfly v0.1.1
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.68.0
[INFO] [stderr]   Downloaded cranelift-frontend v0.68.0
[INFO] [stderr]   Downloaded cc v1.0.61
[INFO] [stderr]   Downloaded regalloc v0.0.31
[INFO] [stderr]   Downloaded syn v1.0.48
[INFO] [stderr]   Downloaded libc v0.2.80
[INFO] [stderr]   Downloaded anyhow v1.0.34
[INFO] [stderr]   Downloaded cranelift-module v0.68.0
[INFO] [stderr]   Downloaded cranelift-bforest v0.68.0
[INFO] [stderr]   Downloaded cranelift-entity v0.68.0
[INFO] [stderr]   Downloaded region v2.2.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.68.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.68.0
[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] f45d447b63e1fa19ee7262d9c79bac7fcf6120fd6e28b7c61ad11ac3f27b1e04
[INFO] running `Command { std: "docker" "start" "-a" "f45d447b63e1fa19ee7262d9c79bac7fcf6120fd6e28b7c61ad11ac3f27b1e04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f45d447b63e1fa19ee7262d9c79bac7fcf6120fd6e28b7c61ad11ac3f27b1e04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f45d447b63e1fa19ee7262d9c79bac7fcf6120fd6e28b7c61ad11ac3f27b1e04", kill_on_drop: false }`
[INFO] [stdout] f45d447b63e1fa19ee7262d9c79bac7fcf6120fd6e28b7c61ad11ac3f27b1e04
[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] 7987b1d65f2716520580a2608e30ef54129175da4fadaa8abc9dc2b41ce8a7a5
[INFO] running `Command { std: "docker" "start" "-a" "7987b1d65f2716520580a2608e30ef54129175da4fadaa8abc9dc2b41ce8a7a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cranelift-entity v0.68.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.68.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.68.0
[INFO] [stderr]     Checking cranelift-bforest v0.68.0
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]    Compiling cranelift-codegen v0.68.0
[INFO] [stderr]     Checking cranelift-module v0.68.0
[INFO] [stderr]     Checking cranelift-frontend v0.68.0
[INFO] [stderr]     Checking cranelift-native v0.68.0
[INFO] [stderr]     Checking cranelift-simplejit v0.68.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `cranelift_codegen` is imported redundantly
[INFO] [stdout]  --> src/backend.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | use cranelift_codegen::{self, ir, settings};
[INFO] [stdout]   |                         ^^^^ the item `cranelift_codegen` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cranelift_native` is imported redundantly
[INFO] [stdout]   --> src/backend.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use cranelift_native;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^ the item `cranelift_native` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/backend.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use libc;
[INFO] [stdout]    |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `errno` is imported redundantly
[INFO] [stdout]  --> src/memory.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use errno;
[INFO] [stdout]   |     ^^^^^ the item `errno` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/memory.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc;
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `region` is imported redundantly
[INFO] [stdout]   --> src/memory.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use region;
[INFO] [stdout]    |     ^^^^^^ the item `region` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cranelift v0.68.0
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cranelift_codegen` is imported redundantly
[INFO] [stdout]  --> src/backend.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | use cranelift_codegen::{self, ir, settings};
[INFO] [stdout]   |                         ^^^^ the item `cranelift_codegen` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cranelift_native` is imported redundantly
[INFO] [stdout]   --> src/backend.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use cranelift_native;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^ the item `cranelift_native` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/backend.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use libc;
[INFO] [stdout]    |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `errno` is imported redundantly
[INFO] [stdout]  --> src/memory.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use errno;
[INFO] [stdout]   |     ^^^^^ the item `errno` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/memory.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc;
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `region` is imported redundantly
[INFO] [stdout]   --> src/memory.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use region;
[INFO] [stdout]    |     ^^^^^^ the item `region` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.69s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.68.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "7987b1d65f2716520580a2608e30ef54129175da4fadaa8abc9dc2b41ce8a7a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7987b1d65f2716520580a2608e30ef54129175da4fadaa8abc9dc2b41ce8a7a5", kill_on_drop: false }`
[INFO] [stdout] 7987b1d65f2716520580a2608e30ef54129175da4fadaa8abc9dc2b41ce8a7a5