[INFO] fetching crate asciigraph 0.9.3...
[INFO] testing asciigraph-0.9.3 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate asciigraph 0.9.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate asciigraph 0.9.3 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate asciigraph 0.9.3
[INFO] finished tweaking crates.io crate asciigraph 0.9.3
[INFO] tweaked toml for crates.io crate asciigraph 0.9.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded asciibox v0.1.0
[INFO] [stderr]   Downloaded hmath v0.1.17
[INFO] [stderr]   Downloaded json v0.12.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3ce0a3e323c5186e9d1fca8204082a6d816eb09c783954bff3d048fb6ec2482
[INFO] running `Command { std: "docker" "start" "-a" "a3ce0a3e323c5186e9d1fca8204082a6d816eb09c783954bff3d048fb6ec2482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3ce0a3e323c5186e9d1fca8204082a6d816eb09c783954bff3d048fb6ec2482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3ce0a3e323c5186e9d1fca8204082a6d816eb09c783954bff3d048fb6ec2482", kill_on_drop: false }`
[INFO] [stdout] a3ce0a3e323c5186e9d1fca8204082a6d816eb09c783954bff3d048fb6ec2482
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1457d26d2800ebb7c2ad76fb2997169aa39f7bf422b9abe747728c73460e2ab
[INFO] running `Command { std: "docker" "start" "-a" "f1457d26d2800ebb7c2ad76fb2997169aa39f7bf422b9abe747728c73460e2ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling asciibox v0.1.0
[INFO] [stderr]    Compiling hmath v0.1.17
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling asciigraph v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graph.rs:272:13
[INFO] [stdout]     |
[INFO] [stdout] 272 |         let mut y_labels_len;
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Table` is never constructed
[INFO] [stdout]  --> src/table.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Table {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `draw` and `get_rect` are never used
[INFO] [stdout]    --> src/table.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl Table {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 23  |     // it's a bit inefficient, but I cannot think of any better implementation...
[INFO] [stdout] 24  |     pub fn draw(&self) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 |     fn get_rect(&self, col: usize, row: usize) -> (usize, usize, usize, usize) {  // (x, y, w, h)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cell` is never constructed
[INFO] [stdout]    --> src/table.rs:224:12
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct Cell {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "f1457d26d2800ebb7c2ad76fb2997169aa39f7bf422b9abe747728c73460e2ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1457d26d2800ebb7c2ad76fb2997169aa39f7bf422b9abe747728c73460e2ab", kill_on_drop: false }`
[INFO] [stdout] f1457d26d2800ebb7c2ad76fb2997169aa39f7bf422b9abe747728c73460e2ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c097530c25c821ff000e559a3fd2f43378f87dde0ce7836c33af9e3d2db8377
[INFO] running `Command { std: "docker" "start" "-a" "5c097530c25c821ff000e559a3fd2f43378f87dde0ce7836c33af9e3d2db8377", kill_on_drop: false }`
[INFO] [stderr]    Compiling asciigraph v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graph.rs:272:13
[INFO] [stdout]     |
[INFO] [stdout] 272 |         let mut y_labels_len;
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Table` is never constructed
[INFO] [stdout]  --> src/table.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Table {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `draw` and `get_rect` are never used
[INFO] [stdout]    --> src/table.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl Table {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 23  |     // it's a bit inefficient, but I cannot think of any better implementation...
[INFO] [stdout] 24  |     pub fn draw(&self) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 |     fn get_rect(&self, col: usize, row: usize) -> (usize, usize, usize, usize) {  // (x, y, w, h)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cell` is never constructed
[INFO] [stdout]    --> src/table.rs:224:12
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct Cell {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graph.rs:272:13
[INFO] [stdout]     |
[INFO] [stdout] 272 |         let mut y_labels_len;
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]    --> src/lines.rs:511:12
[INFO] [stdout]     |
[INFO] [stdout] 13  | impl Lines {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 511 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Table` is never constructed
[INFO] [stdout]  --> src/table.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Table {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `draw` and `get_rect` are never used
[INFO] [stdout]    --> src/table.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl Table {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 23  |     // it's a bit inefficient, but I cannot think of any better implementation...
[INFO] [stdout] 24  |     pub fn draw(&self) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 |     fn get_rect(&self, col: usize, row: usize) -> (usize, usize, usize, usize) {  // (x, y, w, h)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cell` is never constructed
[INFO] [stdout]    --> src/table.rs:224:12
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct Cell {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "5c097530c25c821ff000e559a3fd2f43378f87dde0ce7836c33af9e3d2db8377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c097530c25c821ff000e559a3fd2f43378f87dde0ce7836c33af9e3d2db8377", kill_on_drop: false }`
[INFO] [stdout] 5c097530c25c821ff000e559a3fd2f43378f87dde0ce7836c33af9e3d2db8377
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12b6c3b82eaf7f3590e168c171e160c047991fd93cf038b3584a95c4372cb145
[INFO] running `Command { std: "docker" "start" "-a" "12b6c3b82eaf7f3590e168c171e160c047991fd93cf038b3584a95c4372cb145", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/graph.rs:272:13
[INFO] [stderr]     |
[INFO] [stderr] 272 |         let mut y_labels_len;
[INFO] [stderr]     |             ----^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Table` is never constructed
[INFO] [stderr]  --> src/table.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Table {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `draw` and `get_rect` are never used
[INFO] [stderr]    --> src/table.rs:24:12
[INFO] [stderr]     |
[INFO] [stderr] 22  | impl Table {
[INFO] [stderr]     | ---------- methods in this implementation
[INFO] [stderr] 23  |     // it's a bit inefficient, but I cannot think of any better implementation...
[INFO] [stderr] 24  |     pub fn draw(&self) -> String {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 206 |     fn get_rect(&self, col: usize, row: usize) -> (usize, usize, usize, usize) {  // (x, y, w, h)
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Cell` is never constructed
[INFO] [stderr]    --> src/table.rs:224:12
[INFO] [stderr]     |
[INFO] [stderr] 224 | pub struct Cell {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_valid` is never used
[INFO] [stderr]    --> src/lines.rs:511:12
[INFO] [stderr]     |
[INFO] [stderr] 13  | impl Lines {
[INFO] [stderr]     | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 511 |     pub fn is_valid(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Table` is never constructed
[INFO] [stderr]  --> src/table.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Table {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `asciigraph` (lib) generated 4 warnings (run `cargo fix --lib -p asciigraph` to apply 1 suggestion)
[INFO] [stderr] warning: `asciigraph` (lib test) generated 5 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/asciigraph-a1046346b455c369)
[INFO] [stderr]    Doc-tests asciigraph
[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] [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" "12b6c3b82eaf7f3590e168c171e160c047991fd93cf038b3584a95c4372cb145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12b6c3b82eaf7f3590e168c171e160c047991fd93cf038b3584a95c4372cb145", kill_on_drop: false }`
[INFO] [stdout] 12b6c3b82eaf7f3590e168c171e160c047991fd93cf038b3584a95c4372cb145
[INFO] testing asciigraph-0.9.3 against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] extracting crate asciigraph 0.9.3 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate asciigraph 0.9.3 on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate asciigraph 0.9.3
[INFO] finished tweaking crates.io crate asciigraph 0.9.3
[INFO] tweaked toml for crates.io crate asciigraph 0.9.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d06089f52cc3952136028e15dad9a203c77eda7c22b626396718e0f71d9d61f8
[INFO] running `Command { std: "docker" "start" "-a" "d06089f52cc3952136028e15dad9a203c77eda7c22b626396718e0f71d9d61f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d06089f52cc3952136028e15dad9a203c77eda7c22b626396718e0f71d9d61f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d06089f52cc3952136028e15dad9a203c77eda7c22b626396718e0f71d9d61f8", kill_on_drop: false }`
[INFO] [stdout] d06089f52cc3952136028e15dad9a203c77eda7c22b626396718e0f71d9d61f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c19b2c2ffe60f86296b17843cf9fcc086e6350dc7d5b243579877ef17d40be4a
[INFO] running `Command { std: "docker" "start" "-a" "c19b2c2ffe60f86296b17843cf9fcc086e6350dc7d5b243579877ef17d40be4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling asciibox v0.1.0
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling hmath v0.1.17
[INFO] [stderr]    Compiling asciigraph v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graph.rs:272:13
[INFO] [stdout]     |
[INFO] [stdout] 272 |         let mut y_labels_len;
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Table` is never constructed
[INFO] [stdout]  --> src/table.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Table {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `draw` and `get_rect` are never used
[INFO] [stdout]    --> src/table.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl Table {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 23  |     // it's a bit inefficient, but I cannot think of any better implementation...
[INFO] [stdout] 24  |     pub fn draw(&self) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 |     fn get_rect(&self, col: usize, row: usize) -> (usize, usize, usize, usize) {  // (x, y, w, h)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cell` is never constructed
[INFO] [stdout]    --> src/table.rs:224:12
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct Cell {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `Command { std: "docker" "inspect" "c19b2c2ffe60f86296b17843cf9fcc086e6350dc7d5b243579877ef17d40be4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19b2c2ffe60f86296b17843cf9fcc086e6350dc7d5b243579877ef17d40be4a", kill_on_drop: false }`
[INFO] [stdout] c19b2c2ffe60f86296b17843cf9fcc086e6350dc7d5b243579877ef17d40be4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e997e5e4cf1521c5e61d95fb45f1e740f8120c3971ea8b20c99a942fb8666a2
[INFO] running `Command { std: "docker" "start" "-a" "5e997e5e4cf1521c5e61d95fb45f1e740f8120c3971ea8b20c99a942fb8666a2", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graph.rs:272:13
[INFO] [stdout]     |
[INFO] [stdout] 272 |         let mut y_labels_len;
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Table` is never constructed
[INFO] [stdout]  --> src/table.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Table {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `draw` and `get_rect` are never used
[INFO] [stdout]    --> src/table.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl Table {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 23  |     // it's a bit inefficient, but I cannot think of any better implementation...
[INFO] [stdout] 24  |     pub fn draw(&self) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 |     fn get_rect(&self, col: usize, row: usize) -> (usize, usize, usize, usize) {  // (x, y, w, h)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cell` is never constructed
[INFO] [stdout]    --> src/table.rs:224:12
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct Cell {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling asciigraph v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graph.rs:272:13
[INFO] [stdout]     |
[INFO] [stdout] 272 |         let mut y_labels_len;
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]    --> src/lines.rs:511:12
[INFO] [stdout]     |
[INFO] [stdout] 13  | impl Lines {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 511 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Table` is never constructed
[INFO] [stdout]  --> src/table.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Table {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `draw` and `get_rect` are never used
[INFO] [stdout]    --> src/table.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl Table {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 23  |     // it's a bit inefficient, but I cannot think of any better implementation...
[INFO] [stdout] 24  |     pub fn draw(&self) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 |     fn get_rect(&self, col: usize, row: usize) -> (usize, usize, usize, usize) {  // (x, y, w, h)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cell` is never constructed
[INFO] [stdout]    --> src/table.rs:224:12
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct Cell {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "5e997e5e4cf1521c5e61d95fb45f1e740f8120c3971ea8b20c99a942fb8666a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e997e5e4cf1521c5e61d95fb45f1e740f8120c3971ea8b20c99a942fb8666a2", kill_on_drop: false }`
[INFO] [stdout] 5e997e5e4cf1521c5e61d95fb45f1e740f8120c3971ea8b20c99a942fb8666a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6c1ccf05f7267bb9d07c20ff7e75249a06464e22416a897904c8bcda5f5e15a2
[INFO] running `Command { std: "docker" "start" "-a" "6c1ccf05f7267bb9d07c20ff7e75249a06464e22416a897904c8bcda5f5e15a2", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/graph.rs:272:13
[INFO] [stderr]     |
[INFO] [stderr] 272 |         let mut y_labels_len;
[INFO] [stderr]     |             ----^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Table` is never constructed
[INFO] [stderr]  --> src/table.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Table {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `draw` and `get_rect` are never used
[INFO] [stderr]    --> src/table.rs:24:12
[INFO] [stderr]     |
[INFO] [stderr] 22  | impl Table {
[INFO] [stderr]     | ---------- methods in this implementation
[INFO] [stderr] 23  |     // it's a bit inefficient, but I cannot think of any better implementation...
[INFO] [stderr] 24  |     pub fn draw(&self) -> String {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 206 |     fn get_rect(&self, col: usize, row: usize) -> (usize, usize, usize, usize) {  // (x, y, w, h)
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: struct `Cell` is never constructed
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/table.rs:224:12
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 224 | pub struct Cell {
[INFO] [stdout] 
[INFO] [stderr]     |            ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_valid` is never used
[INFO] [stderr]    --> src/lines.rs:511:12
[INFO] [stderr]     |
[INFO] [stderr] 13  | impl Lines {
[INFO] [stderr]     | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 511 |     pub fn is_valid(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Table` is never constructed
[INFO] [stderr]  --> src/table.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Table {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `asciigraph` (lib) generated 4 warnings (run `cargo fix --lib -p asciigraph` to apply 1 suggestion)
[INFO] [stderr] warning: `asciigraph` (lib test) generated 5 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/asciigraph-a1046346b455c369)
[INFO] [stderr]    Doc-tests asciigraph
[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" "6c1ccf05f7267bb9d07c20ff7e75249a06464e22416a897904c8bcda5f5e15a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1ccf05f7267bb9d07c20ff7e75249a06464e22416a897904c8bcda5f5e15a2", kill_on_drop: false }`
[INFO] [stdout] 6c1ccf05f7267bb9d07c20ff7e75249a06464e22416a897904c8bcda5f5e15a2
