[INFO] fetching crate blockcounter 0.3.2...
[INFO] checking blockcounter-0.3.2 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] extracting crate blockcounter 0.3.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate blockcounter 0.3.2 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blockcounter 0.3.2
[INFO] finished tweaking crates.io crate blockcounter 0.3.2
[INFO] tweaked toml for crates.io crate blockcounter 0.3.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58cb0d7c30a7b5873fc69fbcb60066eb1553f7277ed83a9c3dcf7471ebb380d8
[INFO] running `Command { std: "docker" "start" "-a" "58cb0d7c30a7b5873fc69fbcb60066eb1553f7277ed83a9c3dcf7471ebb380d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58cb0d7c30a7b5873fc69fbcb60066eb1553f7277ed83a9c3dcf7471ebb380d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58cb0d7c30a7b5873fc69fbcb60066eb1553f7277ed83a9c3dcf7471ebb380d8", kill_on_drop: false }`
[INFO] [stdout] 58cb0d7c30a7b5873fc69fbcb60066eb1553f7277ed83a9c3dcf7471ebb380d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36fa394a499a231b5cdd8f33508c8efccf067894be4077852c39e608a8165e22
[INFO] running `Command { std: "docker" "start" "-a" "36fa394a499a231b5cdd8f33508c8efccf067894be4077852c39e608a8165e22", kill_on_drop: false }`
[INFO] [stderr]     Checking blockcounter v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | use std::iter::Iterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Iterator` 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:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | use std::iter::Iterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Iterator` is already defined here
[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] [stdout] error[E0601]: `main` function not found in crate `deletable`
[INFO] [stdout]  --> examples/deletable.rs:1:59
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const DELETABLE_FILENAME: &str = "can_be_deleted.txt";
[INFO] [stdout]   |                                                           ^ consider adding a `main` function to `examples/deletable.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blockcounter` (example "deletable") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "36fa394a499a231b5cdd8f33508c8efccf067894be4077852c39e608a8165e22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36fa394a499a231b5cdd8f33508c8efccf067894be4077852c39e608a8165e22", kill_on_drop: false }`
[INFO] [stdout] 36fa394a499a231b5cdd8f33508c8efccf067894be4077852c39e608a8165e22