[INFO] fetching crate corrupt 0.1.0...
[INFO] checking corrupt-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate corrupt 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate corrupt 0.1.0 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 corrupt 0.1.0
[INFO] finished tweaking crates.io crate corrupt 0.1.0
[INFO] tweaked toml for crates.io crate corrupt 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate corrupt 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ron v0.5.1
[INFO] [stderr]   Downloaded quote v1.0.3
[INFO] [stderr]   Downloaded thiserror-impl v1.0.15
[INFO] [stderr]   Downloaded thiserror v1.0.15
[INFO] [stderr]   Downloaded net2 v0.2.33
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.10
[INFO] [stderr]   Downloaded serde_derive v1.0.106
[INFO] [stderr]   Downloaded crossterm_winapi v0.6.1
[INFO] [stderr]   Downloaded parking_lot_core v0.7.2
[INFO] [stderr]   Downloaded arc-swap v0.4.6
[INFO] [stderr]   Downloaded signal-hook v0.1.13
[INFO] [stderr]   Downloaded crossterm v0.17.3
[INFO] [stderr]   Downloaded mio v0.6.21
[INFO] [stderr]   Downloaded serde v1.0.106
[INFO] [stderr]   Downloaded syn v1.0.18
[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] bf8d11eed32cd86495e7d5421dbefc65e56018585088ecad6a18c4fedf70653b
[INFO] running `Command { std: "docker" "start" "-a" "bf8d11eed32cd86495e7d5421dbefc65e56018585088ecad6a18c4fedf70653b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf8d11eed32cd86495e7d5421dbefc65e56018585088ecad6a18c4fedf70653b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf8d11eed32cd86495e7d5421dbefc65e56018585088ecad6a18c4fedf70653b", kill_on_drop: false }`
[INFO] [stdout] bf8d11eed32cd86495e7d5421dbefc65e56018585088ecad6a18c4fedf70653b
[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] 2f26872d5667436dd2329c5975a34dbea77dd2377214c42896b164bd1fdaed6c
[INFO] running `Command { std: "docker" "start" "-a" "2f26872d5667436dd2329c5975a34dbea77dd2377214c42896b164bd1fdaed6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking signal-hook v0.1.13
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking thiserror v1.0.15
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking ron v0.5.1
[INFO] [stderr]     Checking crossterm v0.17.3
[INFO] [stderr]     Checking corrupt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> src/stylizer.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Attribute, Color, Print, ResetColor, SetAttribute, SetBackgroundColor, SetForegroundColor,
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::error::Result`
[INFO] [stdout]  --> src/token.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::error::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> src/stylizer.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Attribute, Color, Print, ResetColor, SetAttribute, SetBackgroundColor, SetForegroundColor,
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::error::Result`
[INFO] [stdout]  --> src/token.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::error::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.54s
[INFO] running `Command { std: "docker" "inspect" "2f26872d5667436dd2329c5975a34dbea77dd2377214c42896b164bd1fdaed6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f26872d5667436dd2329c5975a34dbea77dd2377214c42896b164bd1fdaed6c", kill_on_drop: false }`
[INFO] [stdout] 2f26872d5667436dd2329c5975a34dbea77dd2377214c42896b164bd1fdaed6c