[INFO] fetching crate ruscii 0.4.0...
[INFO] checking ruscii-0.4.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate ruscii 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate ruscii 0.4.0 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 ruscii 0.4.0
[INFO] finished tweaking crates.io crate ruscii 0.4.0
[INFO] tweaked toml for crates.io crate ruscii 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate ruscii 0.4.0 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded readmouse v0.2.1
[INFO] [stderr]   Downloaded macos-accessibility-client v0.0.1
[INFO] [stderr]   Downloaded pkg-config v0.3.26
[INFO] [stderr]   Downloaded device_query v1.1.3
[INFO] [stderr]   Downloaded readkey v0.1.7
[INFO] [stderr]   Downloaded x11 v2.21.0
[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] 1096bcac8eb93af16a83520484f28c07b90bd1209302837d3d4e612d4770b09c
[INFO] running `Command { std: "docker" "start" "-a" "1096bcac8eb93af16a83520484f28c07b90bd1209302837d3d4e612d4770b09c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1096bcac8eb93af16a83520484f28c07b90bd1209302837d3d4e612d4770b09c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1096bcac8eb93af16a83520484f28c07b90bd1209302837d3d4e612d4770b09c", kill_on_drop: false }`
[INFO] [stdout] 1096bcac8eb93af16a83520484f28c07b90bd1209302837d3d4e612d4770b09c
[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] 3e11db0ccadb03f6c5dd9f49c722ac6fe30c029a73dabfddd5e5b26c6f297520
[INFO] running `Command { std: "docker" "start" "-a" "3e11db0ccadb03f6c5dd9f49c722ac6fe30c029a73dabfddd5e5b26c6f297520", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling x11 v2.21.0
[INFO] [stderr]    Compiling device_query v1.1.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.26.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking ruscii v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> examples/pong.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{self, prelude::*};
[INFO] [stdout]   |            ^^^^ the item `rand` 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 `rand` is imported redundantly
[INFO] [stdout]  --> examples/space_invaders.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{self, prelude::*};
[INFO] [stdout]   |            ^^^^ the item `rand` 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 4.08s
[INFO] running `Command { std: "docker" "inspect" "3e11db0ccadb03f6c5dd9f49c722ac6fe30c029a73dabfddd5e5b26c6f297520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e11db0ccadb03f6c5dd9f49c722ac6fe30c029a73dabfddd5e5b26c6f297520", kill_on_drop: false }`
[INFO] [stdout] 3e11db0ccadb03f6c5dd9f49c722ac6fe30c029a73dabfddd5e5b26c6f297520