[INFO] fetching crate rate-sick-check 0.3.0...
[INFO] checking rate-sick-check-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rate-sick-check 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rate-sick-check 0.3.0 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 rate-sick-check 0.3.0
[INFO] finished tweaking crates.io crate rate-sick-check 0.3.0
[INFO] tweaked toml for crates.io crate rate-sick-check 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate rate-sick-check 0.3.0 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 toml v0.5.5
[INFO] [stderr]   Downloaded rate-common v0.3.0
[INFO] [stderr]   Downloaded rate-macros v0.3.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.5
[INFO] [stderr]   Downloaded zstd-safe v2.0.3+zstd.1.4.4
[INFO] [stderr]   Downloaded pkg-config v0.3.17
[INFO] [stderr]   Downloaded num_cpus v1.11.1
[INFO] [stderr]   Downloaded lz4 v1.23.1
[INFO] [stderr]   Downloaded jobserver v0.1.17
[INFO] [stderr]   Downloaded proc-macro2 v1.0.6
[INFO] [stderr]   Downloaded derive_more v0.99.2
[INFO] [stderr]   Downloaded miniz_oxide v0.3.5
[INFO] [stderr]   Downloaded flate2 v1.0.13
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded lz4-sys v1.8.3
[INFO] [stderr]   Downloaded lzma-sys v0.1.15
[INFO] [stderr]   Downloaded syn v1.0.11
[INFO] [stderr]   Downloaded getrandom v0.1.13
[INFO] [stderr]   Downloaded cc v1.0.48
[INFO] [stderr]   Downloaded zstd v0.5.1+zstd.1.4.4
[INFO] [stderr]   Downloaded zstd-sys v1.4.15+zstd.1.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e46c81770613fd235219e2332bb9440bfc1b4a3701ec082b63322a99250ba364
[INFO] running `Command { std: "docker" "start" "-a" "e46c81770613fd235219e2332bb9440bfc1b4a3701ec082b63322a99250ba364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e46c81770613fd235219e2332bb9440bfc1b4a3701ec082b63322a99250ba364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46c81770613fd235219e2332bb9440bfc1b4a3701ec082b63322a99250ba364", kill_on_drop: false }`
[INFO] [stdout] e46c81770613fd235219e2332bb9440bfc1b4a3701ec082b63322a99250ba364
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 17215c9e07488d45cc7fc0a0368350dad9358f57e4c5abe6d76af76725c6ac2b
[INFO] running `Command { std: "docker" "start" "-a" "17215c9e07488d45cc7fc0a0368350dad9358f57e4c5abe6d76af76725c6ac2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking miniz_oxide v0.3.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling zstd-sys v1.4.15+zstd.1.4.4
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling lzma-sys v0.1.15
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling rate-macros v0.3.0
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr]     Checking zstd-safe v2.0.3+zstd.1.4.4
[INFO] [stderr]     Checking zstd v0.5.1+zstd.1.4.4
[INFO] [stderr]     Checking rate-common v0.3.0
[INFO] [stderr]     Checking rate-sick-check v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `toml` is imported redundantly
[INFO] [stdout]  --> sick-check.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use toml;
[INFO] [stdout]   |     ^^^^ the item `toml` 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 `toml` is imported redundantly
[INFO] [stdout]  --> sick-check.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use toml;
[INFO] [stdout]   |     ^^^^ the item `toml` is already defined by prelude
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.83s
[INFO] running `Command { std: "docker" "inspect" "17215c9e07488d45cc7fc0a0368350dad9358f57e4c5abe6d76af76725c6ac2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17215c9e07488d45cc7fc0a0368350dad9358f57e4c5abe6d76af76725c6ac2b", kill_on_drop: false }`
[INFO] [stdout] 17215c9e07488d45cc7fc0a0368350dad9358f57e4c5abe6d76af76725c6ac2b