[INFO] fetching crate collections2 0.0.1...
[INFO] testing collections2-0.0.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate collections2 0.0.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate collections2 0.0.1
[INFO] finished tweaking crates.io crate collections2 0.0.1
[INFO] tweaked toml for crates.io crate collections2 0.0.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate collections2 0.0.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48e4a40e496e77e3ad76526ee6d346714f19f6588a7c0e0b518c6a00b385ca2a
[INFO] running `Command { std: "docker" "start" "-a" "48e4a40e496e77e3ad76526ee6d346714f19f6588a7c0e0b518c6a00b385ca2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48e4a40e496e77e3ad76526ee6d346714f19f6588a7c0e0b518c6a00b385ca2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48e4a40e496e77e3ad76526ee6d346714f19f6588a7c0e0b518c6a00b385ca2a", kill_on_drop: false }`
[INFO] [stdout] 48e4a40e496e77e3ad76526ee6d346714f19f6588a7c0e0b518c6a00b385ca2a
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd63c685c7abb42f4d6188a9f2f847b79ef1e937e869699d0d1f794dba319226
[INFO] running `Command { std: "docker" "start" "-a" "bd63c685c7abb42f4d6188a9f2f847b79ef1e937e869699d0d1f794dba319226", kill_on_drop: false }`
[INFO] [stderr]    Compiling collections2 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/list.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/map.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/map.rs:342:9
[INFO] [stdout]     |
[INFO] [stdout] 342 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/set.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "bd63c685c7abb42f4d6188a9f2f847b79ef1e937e869699d0d1f794dba319226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd63c685c7abb42f4d6188a9f2f847b79ef1e937e869699d0d1f794dba319226", kill_on_drop: false }`
[INFO] [stdout] bd63c685c7abb42f4d6188a9f2f847b79ef1e937e869699d0d1f794dba319226
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a476111c112619652403530e8ad694b9e4f3753fb18682a840cd8e0c356c608c
[INFO] running `Command { std: "docker" "start" "-a" "a476111c112619652403530e8ad694b9e4f3753fb18682a840cd8e0c356c608c", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/list.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/map.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/map.rs:342:9
[INFO] [stdout]     |
[INFO] [stdout] 342 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/set.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling collections2 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/list.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/map.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/map.rs:342:9
[INFO] [stdout]     |
[INFO] [stdout] 342 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/set.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "a476111c112619652403530e8ad694b9e4f3753fb18682a840cd8e0c356c608c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a476111c112619652403530e8ad694b9e4f3753fb18682a840cd8e0c356c608c", kill_on_drop: false }`
[INFO] [stdout] a476111c112619652403530e8ad694b9e4f3753fb18682a840cd8e0c356c608c
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fb1a3eb7e5daa75ff9839f4675a5268eead03ba0660c8d63b4a0b9d11fa7a35e
[INFO] running `Command { std: "docker" "start" "-a" "fb1a3eb7e5daa75ff9839f4675a5268eead03ba0660c8d63b4a0b9d11fa7a35e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self::alloc::*`
[INFO] [stderr]    --> src/list.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub use self::alloc::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::std::*`
[INFO] [stderr]    --> src/map.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 | pub use self::std::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::alloc::*`
[INFO] [stderr]    --> src/map.rs:342:9
[INFO] [stderr]     |
[INFO] [stderr] 342 | pub use self::alloc::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::std::*`
[INFO] [stderr]    --> src/set.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 | pub use self::std::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `collections2` (lib) generated 4 warnings (run `cargo fix --lib -p collections2` to apply 4 suggestions)
[INFO] [stderr] warning: `collections2` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/collections2-3eedeecdc2807065)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests collections2
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fb1a3eb7e5daa75ff9839f4675a5268eead03ba0660c8d63b4a0b9d11fa7a35e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb1a3eb7e5daa75ff9839f4675a5268eead03ba0660c8d63b4a0b9d11fa7a35e", kill_on_drop: false }`
[INFO] [stdout] fb1a3eb7e5daa75ff9839f4675a5268eead03ba0660c8d63b4a0b9d11fa7a35e