[INFO] fetching crate sdr-heatmap 0.1.5...
[INFO] building sdr-heatmap-0.1.5 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate sdr-heatmap 0.1.5 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate sdr-heatmap 0.1.5
[INFO] finished tweaking crates.io crate sdr-heatmap 0.1.5
[INFO] tweaked toml for crates.io crate sdr-heatmap 0.1.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sdr-heatmap 0.1.5 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sdr-heatmap 0.1.5 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a55a9bdf7b2c2e7c8ad38f699d1d293b54b08530b012b1637a5abe8311588af3
[INFO] running `Command { std: "docker" "start" "-a" "a55a9bdf7b2c2e7c8ad38f699d1d293b54b08530b012b1637a5abe8311588af3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a55a9bdf7b2c2e7c8ad38f699d1d293b54b08530b012b1637a5abe8311588af3", kill_on_drop: false }`
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[INFO] [stdout] a55a9bdf7b2c2e7c8ad38f699d1d293b54b08530b012b1637a5abe8311588af3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a278d88a5ad1d3ee452b3affc46dfd8b99fbebc58d1cbc1173ec1243701b606
[INFO] running `Command { std: "docker" "start" "-a" "1a278d88a5ad1d3ee452b3affc46dfd8b99fbebc58d1cbc1173ec1243701b606", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
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[INFO] [stderr]    Compiling byteorder v1.3.4
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[INFO] [stderr]    Compiling sdr-heatmap v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `freq_high` and `samples` are never read
[INFO] [stdout]   --> src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Measurement {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     freq_high: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     freq_step: f64,
[INFO] [stdout] 21 |     samples: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Measurement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.57s
[INFO] running `Command { std: "docker" "inspect" "1a278d88a5ad1d3ee452b3affc46dfd8b99fbebc58d1cbc1173ec1243701b606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a278d88a5ad1d3ee452b3affc46dfd8b99fbebc58d1cbc1173ec1243701b606", kill_on_drop: false }`
[INFO] [stdout] 1a278d88a5ad1d3ee452b3affc46dfd8b99fbebc58d1cbc1173ec1243701b606
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2531e941057ec619b826466995492f983045c526a60f958387716ae17a6c80e9
[INFO] running `Command { std: "docker" "start" "-a" "2531e941057ec619b826466995492f983045c526a60f958387716ae17a6c80e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
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[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling regex-syntax v0.6.18
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[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stdout] warning: fields `freq_high` and `samples` are never read
[INFO] [stdout]   --> src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Measurement {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     freq_high: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     freq_step: f64,
[INFO] [stdout] 21 |     samples: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Measurement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v0.10.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling sdr-heatmap v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `assert_ne`
[INFO] [stdout]   --> src/colors.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |     use pretty_assertions::{assert_eq, assert_ne};
[INFO] [stdout]    |                                        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `assert_ne`
[INFO] [stdout]    --> src/lib.rs:301:40
[INFO] [stdout]     |
[INFO] [stdout] 301 |     use pretty_assertions::{assert_eq, assert_ne};
[INFO] [stdout]     |                                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `freq_high` and `samples` are never read
[INFO] [stdout]   --> src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Measurement {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     freq_high: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     freq_step: f64,
[INFO] [stdout] 21 |     samples: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Measurement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 20.15s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "2531e941057ec619b826466995492f983045c526a60f958387716ae17a6c80e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2531e941057ec619b826466995492f983045c526a60f958387716ae17a6c80e9", kill_on_drop: false }`
[INFO] [stdout] 2531e941057ec619b826466995492f983045c526a60f958387716ae17a6c80e9