[INFO] fetching crate isner 0.0.1-alpha.2...
[INFO] checking isner-0.0.1-alpha.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate isner 0.0.1-alpha.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate isner 0.0.1-alpha.2 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 isner 0.0.1-alpha.2
[INFO] finished tweaking crates.io crate isner 0.0.1-alpha.2
[INFO] tweaked toml for crates.io crate isner 0.0.1-alpha.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate isner 0.0.1-alpha.2 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 thiserror-impl v1.0.19
[INFO] [stderr]   Downloaded fehler-macros v1.0.0
[INFO] [stderr]   Downloaded aho-corasick v0.7.10
[INFO] [stderr]   Downloaded http v0.2.1
[INFO] [stderr]   Downloaded fehler v1.0.0
[INFO] [stderr]   Downloaded bytes v0.5.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.17
[INFO] [stderr]   Downloaded syn v1.0.29
[INFO] [stderr]   Downloaded thiserror v1.0.19
[INFO] [stderr]   Downloaded hermit-abi v0.1.13
[INFO] [stderr]   Downloaded quote v1.0.6
[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] 4d6b712c6e025a7bddcee29667a1aa8ddd102ff9990622eb3f99f5483804a83b
[INFO] running `Command { std: "docker" "start" "-a" "4d6b712c6e025a7bddcee29667a1aa8ddd102ff9990622eb3f99f5483804a83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d6b712c6e025a7bddcee29667a1aa8ddd102ff9990622eb3f99f5483804a83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d6b712c6e025a7bddcee29667a1aa8ddd102ff9990622eb3f99f5483804a83b", kill_on_drop: false }`
[INFO] [stdout] 4d6b712c6e025a7bddcee29667a1aa8ddd102ff9990622eb3f99f5483804a83b
[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] 141b3215741e2547a5ea1b7829c3a839cc4597a6da6600da65edd6d8d6876c72
[INFO] running `Command { std: "docker" "start" "-a" "141b3215741e2547a5ea1b7829c3a839cc4597a6da6600da65edd6d8d6876c72", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling syn v1.0.29
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking fehler v1.0.0
[INFO] [stderr]     Checking isner v0.0.1-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Method` is imported redundantly
[INFO] [stdout]   --> src/file_handler.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     use super::*;
[INFO] [stdout]    |         -------- the item `Method` is already imported here
[INFO] [stdout] 70 |     use http::Method;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.42s
[INFO] running `Command { std: "docker" "inspect" "141b3215741e2547a5ea1b7829c3a839cc4597a6da6600da65edd6d8d6876c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "141b3215741e2547a5ea1b7829c3a839cc4597a6da6600da65edd6d8d6876c72", kill_on_drop: false }`
[INFO] [stdout] 141b3215741e2547a5ea1b7829c3a839cc4597a6da6600da65edd6d8d6876c72