[INFO] fetching crate format_serde_error 0.3.0...
[INFO] testing format_serde_error-0.3.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[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 cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pretty_assertions v0.7.2
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94289cd618a0cc555d0106fb71463432b9913c3a202c05120480e97a25ac0239
[INFO] running `Command { std: "docker" "start" "-a" "94289cd618a0cc555d0106fb71463432b9913c3a202c05120480e97a25ac0239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94289cd618a0cc555d0106fb71463432b9913c3a202c05120480e97a25ac0239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94289cd618a0cc555d0106fb71463432b9913c3a202c05120480e97a25ac0239", kill_on_drop: false }`
[INFO] [stdout] 94289cd618a0cc555d0106fb71463432b9913c3a202c05120480e97a25ac0239
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdf10f4f5b9ba0ffedf028f175cf9cd23785806b311140158374afa8e0a37c66
[INFO] running `Command { std: "docker" "start" "-a" "cdf10f4f5b9ba0ffedf028f175cf9cd23785806b311140158374afa8e0a37c66", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[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 dtoa v0.4.8
[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 10.40s
[INFO] running `Command { std: "docker" "inspect" "cdf10f4f5b9ba0ffedf028f175cf9cd23785806b311140158374afa8e0a37c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf10f4f5b9ba0ffedf028f175cf9cd23785806b311140158374afa8e0a37c66", kill_on_drop: false }`
[INFO] [stdout] cdf10f4f5b9ba0ffedf028f175cf9cd23785806b311140158374afa8e0a37c66
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aba9be34f7035bd95cd56b6456b7fb43a7a65bbd6b321db1f31d324881bb81e9
[INFO] running `Command { std: "docker" "start" "-a" "aba9be34f7035bd95cd56b6456b7fb43a7a65bbd6b321db1f31d324881bb81e9", 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.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Config {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "aba9be34f7035bd95cd56b6456b7fb43a7a65bbd6b321db1f31d324881bb81e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aba9be34f7035bd95cd56b6456b7fb43a7a65bbd6b321db1f31d324881bb81e9", kill_on_drop: false }`
[INFO] [stdout] aba9be34f7035bd95cd56b6456b7fb43a7a65bbd6b321db1f31d324881bb81e9
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 766b3d789ee1dcce4cf9b52bb62d0ddd1aaa8cc60a89bc99725e32b8c43d2f6b
[INFO] running `Command { std: "docker" "start" "-a" "766b3d789ee1dcce4cf9b52bb62d0ddd1aaa8cc60a89bc99725e32b8c43d2f6b", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/format_serde_error-441796efad7ad078)
[INFO] [stderr]    Doc-tests format_serde_error
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test test::context_long_line::long_line_error_beginning ... ok
[INFO] [stdout] test test::context_long_line::last_char_is_error ... ok
[INFO] [stdout] test test::context_long_line::long_line_using_context ... ok
[INFO] [stdout] test test::context_long_line::short_line_using_context ... ok
[INFO] [stdout] test test::context_long_line::structured_line ... ok
[INFO] [stdout] test test::context_long_line::short_line_without_context ... ok
[INFO] [stdout] test test::context_long_line::unicode_string ... ok
[INFO] [stdout] test test::context_long_line::graphemes_string ... ok
[INFO] [stdout] test test::custom::long_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::short_line_change_no_line_context ... ok
[INFO] [stdout] test test::custom::short_line_disable_context ... ok
[INFO] [stdout] test test::custom::tabs_multiple_lines ... ok
[INFO] [stdout] test test::json::empty_config_file ... ok
[INFO] [stdout] test test::custom::tabs_single_line ... ok
[INFO] [stdout] test test::json::empty_config_file_only_map ... ok
[INFO] [stdout] test test::json::unterminated_map ... ok
[INFO] [stdout] test test::yaml::empty_config_file ... ok
[INFO] [stdout] test test::json::example_config_file ... ok
[INFO] [stdout] test test::json::example_config_file_pretty ... 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 0.00s
[INFO] [stdout] 
[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 0.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "766b3d789ee1dcce4cf9b52bb62d0ddd1aaa8cc60a89bc99725e32b8c43d2f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "766b3d789ee1dcce4cf9b52bb62d0ddd1aaa8cc60a89bc99725e32b8c43d2f6b", kill_on_drop: false }`
[INFO] [stdout] 766b3d789ee1dcce4cf9b52bb62d0ddd1aaa8cc60a89bc99725e32b8c43d2f6b