[INFO] fetching crate format_serde_error 0.3.0...
[INFO] testing format_serde_error-0.3.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate format_serde_error 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate format_serde_error 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate format_serde_error 0.3.0
[INFO] tweaked toml for crates.io crate format_serde_error 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate format_serde_error 0.3.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate format_serde_error 0.3.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.73
[INFO] [stderr]   Downloaded anyhow v1.0.41
[INFO] [stderr]   Downloaded ctor v0.1.20
[INFO] [stderr]   Downloaded diff v0.1.12
[INFO] [stderr]   Downloaded proc-macro2 v1.0.27
[INFO] [stderr]   Downloaded serde_json v1.0.64
[INFO] [stderr]   Downloaded serde v1.0.126
[INFO] [stderr]   Downloaded serde_yaml v0.8.17
[INFO] [stderr]   Downloaded output_vt100 v0.1.2
[INFO] [stderr]   Downloaded pretty_assertions v0.7.2
[INFO] [stderr]   Downloaded itoa v0.4.7
[INFO] [stderr]   Downloaded serde_derive v1.0.126
[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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f21eacb2751b8725bc22954fd7c89cc366b806067874750f61ab2cf740069022
[INFO] running `Command { std: "docker" "start" "-a" "f21eacb2751b8725bc22954fd7c89cc366b806067874750f61ab2cf740069022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f21eacb2751b8725bc22954fd7c89cc366b806067874750f61ab2cf740069022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f21eacb2751b8725bc22954fd7c89cc366b806067874750f61ab2cf740069022", kill_on_drop: false }`
[INFO] [stdout] f21eacb2751b8725bc22954fd7c89cc366b806067874750f61ab2cf740069022
[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=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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1f5824409dd6d13631cbf2f22c788f67f8105187a3abc95179060f62c6d45cd
[INFO] running `Command { std: "docker" "start" "-a" "e1f5824409dd6d13631cbf2f22c788f67f8105187a3abc95179060f62c6d45cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling serde_yaml v0.8.17
[INFO] [stderr]    Compiling format_serde_error v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.76s
[INFO] running `Command { std: "docker" "inspect" "e1f5824409dd6d13631cbf2f22c788f67f8105187a3abc95179060f62c6d45cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1f5824409dd6d13631cbf2f22c788f67f8105187a3abc95179060f62c6d45cd", kill_on_drop: false }`
[INFO] [stdout] e1f5824409dd6d13631cbf2f22c788f67f8105187a3abc95179060f62c6d45cd
[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=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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 753fba1dea26352b258fb4381181133601b095b0047f8e22bb6e4c9c4e2db814
[INFO] running `Command { std: "docker" "start" "-a" "753fba1dea26352b258fb4381181133601b095b0047f8e22bb6e4c9c4e2db814", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling pretty_assertions v0.7.2
[INFO] [stderr]    Compiling format_serde_error v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Config` is never constructed
[INFO] [stdout]  --> examples/custom_tabs.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Config {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Config` is never constructed
[INFO] [stdout]  --> examples/custom.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Config {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `Command { std: "docker" "inspect" "753fba1dea26352b258fb4381181133601b095b0047f8e22bb6e4c9c4e2db814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "753fba1dea26352b258fb4381181133601b095b0047f8e22bb6e4c9c4e2db814", kill_on_drop: false }`
[INFO] [stdout] 753fba1dea26352b258fb4381181133601b095b0047f8e22bb6e4c9c4e2db814
[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=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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d0376f569545db314d8b52b60ebad589a9cd40045cfaa0e19ff70822f238803c
[INFO] running `Command { std: "docker" "start" "-a" "d0376f569545db314d8b52b60ebad589a9cd40045cfaa0e19ff70822f238803c", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Config` is never constructed
[INFO] [stderr]  --> examples/custom.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Config {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Config` is never constructed
[INFO] [stderr]  --> examples/custom_tabs.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Config {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `format_serde_error` (example "custom") generated 1 warning
[INFO] [stderr] warning: `format_serde_error` (example "custom_tabs") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/format_serde_error-441796efad7ad078)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test test::context_long_line::graphemes_string ... ok
[INFO] [stdout] test test::context_long_line::last_char_is_error ... ok
[INFO] [stdout] test test::context_long_line::short_line_using_context ... ok
[INFO] [stdout] test test::context_long_line::long_line_error_beginning ... ok
[INFO] [stdout] test test::context_long_line::short_line_without_context ... ok
[INFO] [stdout] test test::context_long_line::long_line_using_context ... ok
[INFO] [stdout] test test::context_long_line::unicode_string ... ok
[INFO] [stdout] test test::context_long_line::structured_line ... ok
[INFO] [stdout] test test::custom::short_line ... ok
[INFO] [stdout] test test::custom::long_line_change_context_characters ... ok
[INFO] [stdout] test test::custom::long_line ... ok
[INFO] [stdout] test test::custom::short_line_disable_context ... ok
[INFO] [stdout] test test::custom::short_line_change_no_line_context ... ok
[INFO] [stdout] test test::custom::tabs_multiple_lines ... ok
[INFO] [stdout] test test::json::empty_config_file_only_map ... ok
[INFO] [stdout] test test::json::unterminated_map ... ok
[INFO] [stdout] test test::json::example_config_file_pretty ... ok
[INFO] [stdout] test test::yaml::empty_config_file ... ok
[INFO] [stdout] test test::custom::tabs_single_line ... ok
[INFO] [stdout] test test::json::example_config_file ... ok
[INFO] [stdout] test test::json::empty_config_file ... ok
[INFO] [stdout] test test::yaml::example_config_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests format_serde_error
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d0376f569545db314d8b52b60ebad589a9cd40045cfaa0e19ff70822f238803c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0376f569545db314d8b52b60ebad589a9cd40045cfaa0e19ff70822f238803c", kill_on_drop: false }`
[INFO] [stdout] d0376f569545db314d8b52b60ebad589a9cd40045cfaa0e19ff70822f238803c