[INFO] fetching crate termatrix 2.2.0...
[INFO] testing termatrix-2.2.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate termatrix 2.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate termatrix 2.2.0
[INFO] finished tweaking crates.io crate termatrix 2.2.0
[INFO] tweaked toml for crates.io crate termatrix 2.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate termatrix 2.2.0 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] crate crates.io crate termatrix 2.2.0 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded redox_termios v0.1.2
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[INFO] [stderr]   Downloaded clap v3.1.14
[INFO] [stderr]   Downloaded libc v0.2.125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 90feb15d5a1e6b61f810ea622b6e05f2d6ced370a3d80c460e1a70296856b4bf
[INFO] running `Command { std: "docker" "start" "-a" "90feb15d5a1e6b61f810ea622b6e05f2d6ced370a3d80c460e1a70296856b4bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90feb15d5a1e6b61f810ea622b6e05f2d6ced370a3d80c460e1a70296856b4bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90feb15d5a1e6b61f810ea622b6e05f2d6ced370a3d80c460e1a70296856b4bf", kill_on_drop: false }`
[INFO] [stdout] 90feb15d5a1e6b61f810ea622b6e05f2d6ced370a3d80c460e1a70296856b4bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0ae75271d60d14c2162033fa06ca50dccc857431543d028bf1823af147239e6c
[INFO] running `Command { std: "docker" "start" "-a" "0ae75271d60d14c2162033fa06ca50dccc857431543d028bf1823af147239e6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling num_threads v0.1.3
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling xi-unicode v0.3.0
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling clap_lex v0.2.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling enum-map-derive v0.8.0
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling enum-map v2.0.1
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]    Compiling clap v3.1.14
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling enumset_derive v0.5.5
[INFO] [stderr]    Compiling enumset v1.0.8
[INFO] [stderr]    Compiling cursive_core v0.3.1
[INFO] [stderr]    Compiling cursive v0.18.0
[INFO] [stderr]    Compiling termatrix v2.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `next_index` is never read
[INFO] [stdout]   --> src/color.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct ColorPool {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 90 |     next_index: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]    --> src/color.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout]  94 | impl ColorPool {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub fn next(&mut self) -> Color {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.28s
[INFO] running `Command { std: "docker" "inspect" "0ae75271d60d14c2162033fa06ca50dccc857431543d028bf1823af147239e6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ae75271d60d14c2162033fa06ca50dccc857431543d028bf1823af147239e6c", kill_on_drop: false }`
[INFO] [stdout] 0ae75271d60d14c2162033fa06ca50dccc857431543d028bf1823af147239e6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e606fdf0482bb61185f07aa695f16641be9c44877b546afd3076242198fae361
[INFO] running `Command { std: "docker" "start" "-a" "e606fdf0482bb61185f07aa695f16641be9c44877b546afd3076242198fae361", kill_on_drop: false }`
[INFO] [stderr]    Compiling termatrix v2.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `next_index` is never read
[INFO] [stdout]   --> src/color.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct ColorPool {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 90 |     next_index: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]    --> src/color.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout]  94 | impl ColorPool {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub fn next(&mut self) -> Color {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "e606fdf0482bb61185f07aa695f16641be9c44877b546afd3076242198fae361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e606fdf0482bb61185f07aa695f16641be9c44877b546afd3076242198fae361", kill_on_drop: false }`
[INFO] [stdout] e606fdf0482bb61185f07aa695f16641be9c44877b546afd3076242198fae361
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 21e3c36500a07d26cab9266763769914e4bdf71f7774e68612932423f2fb8c9e
[INFO] running `Command { std: "docker" "start" "-a" "21e3c36500a07d26cab9266763769914e4bdf71f7774e68612932423f2fb8c9e", kill_on_drop: false }`
[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] warning: field `next_index` is never read
[INFO] [stderr]   --> src/color.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 89 | pub struct ColorPool {
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] 90 |     next_index: u32,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `next` is never used
[INFO] [stderr]    --> src/color.rs:104:12
[INFO] [stderr]     |
[INFO] [stderr]  94 | impl ColorPool {
[INFO] [stderr]     | -------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 104 |     pub fn next(&mut self) -> Color {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `termatrix` (bin "termatrix" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/termatrix-f4501465cfce8611)
[INFO] running `Command { std: "docker" "inspect" "21e3c36500a07d26cab9266763769914e4bdf71f7774e68612932423f2fb8c9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21e3c36500a07d26cab9266763769914e4bdf71f7774e68612932423f2fb8c9e", kill_on_drop: false }`
[INFO] [stdout] 21e3c36500a07d26cab9266763769914e4bdf71f7774e68612932423f2fb8c9e