[INFO] fetching crate heatmap 0.6.6...
[INFO] testing heatmap-0.6.6 against 1.60.0 for beta-1.61-1
[INFO] extracting crate heatmap 0.6.6 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate heatmap 0.6.6 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate heatmap 0.6.6
[INFO] finished tweaking crates.io crate heatmap 0.6.6
[INFO] tweaked toml for crates.io crate heatmap 0.6.6 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded histogram v0.6.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e0667929ca516929005851b04453a37d6e706c834ad377cdf52b4407cf0b757
[INFO] running `Command { std: "docker" "start" "-a" "2e0667929ca516929005851b04453a37d6e706c834ad377cdf52b4407cf0b757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e0667929ca516929005851b04453a37d6e706c834ad377cdf52b4407cf0b757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0667929ca516929005851b04453a37d6e706c834ad377cdf52b4407cf0b757", kill_on_drop: false }`
[INFO] [stdout] 2e0667929ca516929005851b04453a37d6e706c834ad377cdf52b4407cf0b757
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 787ebc7496ceba5bf573ef38880d98de8448eda382934640f794def6c374804d
[INFO] running `Command { std: "docker" "start" "-a" "787ebc7496ceba5bf573ef38880d98de8448eda382934640f794def6c374804d", kill_on_drop: false }`
[INFO] [stderr]    Compiling histogram v0.6.9
[INFO] [stderr]    Compiling heatmap v0.6.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `iterator`
[INFO] [stdout]    --> src/lib.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     iterator: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:26:9
[INFO] [stdout]     |
[INFO] [stdout] 26  | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]`
[INFO] [stdout] note: `Data` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:139:10
[INFO] [stdout]     |
[INFO] [stdout] 139 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `properties`
[INFO] [stdout]    --> src/lib.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 |     properties: Properties,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Heatmap` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:152:10
[INFO] [stdout]     |
[INFO] [stdout] 152 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "787ebc7496ceba5bf573ef38880d98de8448eda382934640f794def6c374804d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "787ebc7496ceba5bf573ef38880d98de8448eda382934640f794def6c374804d", kill_on_drop: false }`
[INFO] [stdout] 787ebc7496ceba5bf573ef38880d98de8448eda382934640f794def6c374804d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47b5110f3f57890ff3b057ced5726e09c6f2f4363a9aa394afcfdaa7bf38cbce
[INFO] running `Command { std: "docker" "start" "-a" "47b5110f3f57890ff3b057ced5726e09c6f2f4363a9aa394afcfdaa7bf38cbce", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `iterator`
[INFO] [stdout]    --> src/lib.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     iterator: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:26:9
[INFO] [stdout]     |
[INFO] [stdout] 26  | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]`
[INFO] [stdout] note: `Data` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:139:10
[INFO] [stdout]     |
[INFO] [stdout] 139 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling heatmap v0.6.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `properties`
[INFO] [stdout]    --> src/lib.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 |     properties: Properties,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Heatmap` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:152:10
[INFO] [stdout]     |
[INFO] [stdout] 152 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `iterator`
[INFO] [stdout]    --> src/lib.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     iterator: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:26:9
[INFO] [stdout]     |
[INFO] [stdout] 26  | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]`
[INFO] [stdout] note: `Data` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:139:10
[INFO] [stdout]     |
[INFO] [stdout] 139 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `properties`
[INFO] [stdout]    --> src/lib.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 |     properties: Properties,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Heatmap` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:152:10
[INFO] [stdout]     |
[INFO] [stdout] 152 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "47b5110f3f57890ff3b057ced5726e09c6f2f4363a9aa394afcfdaa7bf38cbce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b5110f3f57890ff3b057ced5726e09c6f2f4363a9aa394afcfdaa7bf38cbce", kill_on_drop: false }`
[INFO] [stdout] 47b5110f3f57890ff3b057ced5726e09c6f2f4363a9aa394afcfdaa7bf38cbce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3c515df41e57e745d18592c90f8215a95ca248d8885fb789661e4fd01a09a36d
[INFO] running `Command { std: "docker" "start" "-a" "3c515df41e57e745d18592c90f8215a95ca248d8885fb789661e4fd01a09a36d", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `iterator`
[INFO] [stderr]    --> src/lib.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     iterator: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:26:9
[INFO] [stderr]     |
[INFO] [stderr] 26  | #![deny(warnings)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]`
[INFO] [stderr] note: `Data` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/lib.rs:139:10
[INFO] [stderr]     |
[INFO] [stderr] 139 | #[derive(Clone)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `properties`
[INFO] [stderr]    --> src/lib.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     properties: Properties,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `Heatmap` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/lib.rs:152:10
[INFO] [stderr]     |
[INFO] [stderr] 152 | #[derive(Clone)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `heatmap` (lib) generated 2 warnings
[INFO] [stderr] warning: `heatmap` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/heatmap-21c2ad236865f122)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_increment ... ok
[INFO] [stdout] test tests::test_new_0 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests heatmap
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - Heatmap::new (line 238) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::entries (line 395) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::clear (line 298) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::increment (line 323) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::configure (line 250) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::increment_by (line 341) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::merge (line 412) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.79s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c515df41e57e745d18592c90f8215a95ca248d8885fb789661e4fd01a09a36d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c515df41e57e745d18592c90f8215a95ca248d8885fb789661e4fd01a09a36d", kill_on_drop: false }`
[INFO] [stdout] 3c515df41e57e745d18592c90f8215a95ca248d8885fb789661e4fd01a09a36d