[INFO] fetching crate bigint-base10 0.1.1...
[INFO] checking bigint-base10-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate bigint-base10 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate bigint-base10 0.1.1 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 bigint-base10 0.1.1
[INFO] finished tweaking crates.io crate bigint-base10 0.1.1
[INFO] tweaked toml for crates.io crate bigint-base10 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] fac483247edb12eb7d3b2fd444b91cbdef4a671d785acfb1230b4a796a3b8e45
[INFO] running `Command { std: "docker" "start" "-a" "fac483247edb12eb7d3b2fd444b91cbdef4a671d785acfb1230b4a796a3b8e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fac483247edb12eb7d3b2fd444b91cbdef4a671d785acfb1230b4a796a3b8e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fac483247edb12eb7d3b2fd444b91cbdef4a671d785acfb1230b4a796a3b8e45", kill_on_drop: false }`
[INFO] [stdout] fac483247edb12eb7d3b2fd444b91cbdef4a671d785acfb1230b4a796a3b8e45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 59fe8f1bffa1b619bde9a5dd625b034736ce46da524cf40456d826488bb7da6e
[INFO] running `Command { std: "docker" "start" "-a" "59fe8f1bffa1b619bde9a5dd625b034736ce46da524cf40456d826488bb7da6e", kill_on_drop: false }`
[INFO] [stderr]     Checking bigint-base10 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `DoubleEndedIterator` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 | use std::iter::{DoubleEndedIterator, Iterator};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `DoubleEndedIterator` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:40:38
[INFO] [stdout]    |
[INFO] [stdout] 40 | use std::iter::{DoubleEndedIterator, Iterator};
[INFO] [stdout]    |                                      ^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `DoubleEndedIterator` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 | use std::iter::{DoubleEndedIterator, Iterator};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `DoubleEndedIterator` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:40:38
[INFO] [stdout]    |
[INFO] [stdout] 40 | use std::iter::{DoubleEndedIterator, Iterator};
[INFO] [stdout]    |                                      ^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Iterator` is already defined here
[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 0.25s
[INFO] running `Command { std: "docker" "inspect" "59fe8f1bffa1b619bde9a5dd625b034736ce46da524cf40456d826488bb7da6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59fe8f1bffa1b619bde9a5dd625b034736ce46da524cf40456d826488bb7da6e", kill_on_drop: false }`
[INFO] [stdout] 59fe8f1bffa1b619bde9a5dd625b034736ce46da524cf40456d826488bb7da6e