[INFO] fetching crate sorted-iter 0.1.11...
[INFO] checking sorted-iter-0.1.11 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate sorted-iter 0.1.11 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate sorted-iter 0.1.11 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sorted-iter 0.1.11
[INFO] finished tweaking crates.io crate sorted-iter 0.1.11
[INFO] tweaked toml for crates.io crate sorted-iter 0.1.11 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate sorted-iter 0.1.11 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck_macros v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 469cf47301c24d7c15929d286be3aeb71592a802752435bb51626cb5dbb50748
[INFO] running `Command { std: "docker" "start" "-a" "469cf47301c24d7c15929d286be3aeb71592a802752435bb51626cb5dbb50748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "469cf47301c24d7c15929d286be3aeb71592a802752435bb51626cb5dbb50748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "469cf47301c24d7c15929d286be3aeb71592a802752435bb51626cb5dbb50748", kill_on_drop: false }`
[INFO] [stdout] 469cf47301c24d7c15929d286be3aeb71592a802752435bb51626cb5dbb50748
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36d6c28696a8744756ef2ea8cf5e7ccb43ccdbea70df96d41d6cd05fac3eca0a
[INFO] running `Command { std: "docker" "start" "-a" "36d6c28696a8744756ef2ea8cf5e7ccb43ccdbea70df96d41d6cd05fac3eca0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking sorted-iter v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stdout] warning: the item `Ordering` is imported redundantly
[INFO] [stdout]  --> src/sorted_iterator.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::*;
[INFO] [stdout]   |     -------- the item `Ordering` is already imported here
[INFO] [stdout] 3 | use core::cmp::Ordering::*;
[INFO] [stdout] 4 | use core::cmp::{max, min, Ordering, Reverse};
[INFO] [stdout]   |                           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SortedByItem` is imported redundantly
[INFO] [stdout]  --> src/sorted_pair_iterator.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::*;
[INFO] [stdout]   |     -------- the item `SortedByItem` is already imported here
[INFO] [stdout] 3 | use crate::sorted_iterator::SortedByItem;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stdout] warning: the item `Ordering` is imported redundantly
[INFO] [stdout]  --> src/sorted_iterator.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::*;
[INFO] [stdout]   |     -------- the item `Ordering` is already imported here
[INFO] [stdout] 3 | use core::cmp::Ordering::*;
[INFO] [stdout] 4 | use core::cmp::{max, min, Ordering, Reverse};
[INFO] [stdout]   |                           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SortedByItem` is imported redundantly
[INFO] [stdout]  --> src/sorted_pair_iterator.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::*;
[INFO] [stdout]   |     -------- the item `SortedByItem` is already imported here
[INFO] [stdout] 3 | use crate::sorted_iterator::SortedByItem;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Debug` is imported redundantly
[INFO] [stdout]    --> src/sorted_pair_iterator.rs:435:9
[INFO] [stdout]     |
[INFO] [stdout] 433 |     use super::*;
[INFO] [stdout]     |         -------- the item `Debug` is already imported here
[INFO] [stdout] 434 |     use collections::BTreeMap;
[INFO] [stdout] 435 |     use core::fmt::Debug;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "36d6c28696a8744756ef2ea8cf5e7ccb43ccdbea70df96d41d6cd05fac3eca0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d6c28696a8744756ef2ea8cf5e7ccb43ccdbea70df96d41d6cd05fac3eca0a", kill_on_drop: false }`
[INFO] [stdout] 36d6c28696a8744756ef2ea8cf5e7ccb43ccdbea70df96d41d6cd05fac3eca0a