[INFO] fetching crate rayonzip 0.2.1...
[INFO] checking rayonzip-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate rayonzip 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rayonzip 0.2.1 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 rayonzip 0.2.1
[INFO] finished tweaking crates.io crate rayonzip 0.2.1
[INFO] tweaked toml for crates.io crate rayonzip 0.2.1 written to /workspace/builds/worker-0-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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages
[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-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] 04b4d9d524c44dfedf8e72c887428a610ae790937f807a9786c67918dabc19c0
[INFO] running `Command { std: "docker" "start" "-a" "04b4d9d524c44dfedf8e72c887428a610ae790937f807a9786c67918dabc19c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04b4d9d524c44dfedf8e72c887428a610ae790937f807a9786c67918dabc19c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04b4d9d524c44dfedf8e72c887428a610ae790937f807a9786c67918dabc19c0", kill_on_drop: false }`
[INFO] [stdout] 04b4d9d524c44dfedf8e72c887428a610ae790937f807a9786c67918dabc19c0
[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] 09b5a275bec3d8e951fc96aa408daa1bdac06fb1d35858c114c05caa9cb66b79
[INFO] running `Command { std: "docker" "start" "-a" "09b5a275bec3d8e951fc96aa408daa1bdac06fb1d35858c114c05caa9cb66b79", kill_on_drop: false }`
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking rayonzip v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/lib.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::{prelude::*, ThreadPool};
[INFO] [stdout]   |             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/lib.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::{prelude::*, ThreadPool};
[INFO] [stdout]   |             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thread_pool`
[INFO] [stdout]    --> src/lib.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             thread_pool,
[INFO] [stdout]     |             ^^^^^^^^^^^ help: try ignoring the field: `thread_pool: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thread_pool`
[INFO] [stdout]    --> src/lib.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             thread_pool,
[INFO] [stdout]     |             ^^^^^^^^^^^ help: try ignoring the field: `thread_pool: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[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 0.90s
[INFO] running `Command { std: "docker" "inspect" "09b5a275bec3d8e951fc96aa408daa1bdac06fb1d35858c114c05caa9cb66b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09b5a275bec3d8e951fc96aa408daa1bdac06fb1d35858c114c05caa9cb66b79", kill_on_drop: false }`
[INFO] [stdout] 09b5a275bec3d8e951fc96aa408daa1bdac06fb1d35858c114c05caa9cb66b79
[INFO] checking rayonzip-0.2.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate rayonzip 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate rayonzip 0.2.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rayonzip 0.2.1
[INFO] finished tweaking crates.io crate rayonzip 0.2.1
[INFO] tweaked toml for crates.io crate rayonzip 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da0aba58fafbe9ef5dfdd8c102829bf7754b73152c5a0326a5eb3158074d901b
[INFO] running `Command { std: "docker" "start" "-a" "da0aba58fafbe9ef5dfdd8c102829bf7754b73152c5a0326a5eb3158074d901b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da0aba58fafbe9ef5dfdd8c102829bf7754b73152c5a0326a5eb3158074d901b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da0aba58fafbe9ef5dfdd8c102829bf7754b73152c5a0326a5eb3158074d901b", kill_on_drop: false }`
[INFO] [stdout] da0aba58fafbe9ef5dfdd8c102829bf7754b73152c5a0326a5eb3158074d901b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92bbb2c73c071cc5ac2d9eb330f65171df171475cd79cd4f8a63f62688706514
[INFO] running `Command { std: "docker" "start" "-a" "92bbb2c73c071cc5ac2d9eb330f65171df171475cd79cd4f8a63f62688706514", kill_on_drop: false }`
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking rayonzip v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/lib.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::{prelude::*, ThreadPool};
[INFO] [stdout]   |             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/lib.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::{prelude::*, ThreadPool};
[INFO] [stdout]   |             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thread_pool`
[INFO] [stdout]    --> src/lib.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             thread_pool,
[INFO] [stdout]     |             ^^^^^^^^^^^ help: try ignoring the field: `thread_pool: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thread_pool`
[INFO] [stdout]    --> src/lib.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             thread_pool,
[INFO] [stdout]     |             ^^^^^^^^^^^ help: try ignoring the field: `thread_pool: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "92bbb2c73c071cc5ac2d9eb330f65171df171475cd79cd4f8a63f62688706514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92bbb2c73c071cc5ac2d9eb330f65171df171475cd79cd4f8a63f62688706514", kill_on_drop: false }`
[INFO] [stdout] 92bbb2c73c071cc5ac2d9eb330f65171df171475cd79cd4f8a63f62688706514