[INFO] fetching crate pretty_goodness 0.1.1...
[INFO] checking pretty_goodness-0.1.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate pretty_goodness 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate pretty_goodness 0.1.1
[INFO] finished tweaking crates.io crate pretty_goodness 0.1.1
[INFO] tweaked toml for crates.io crate pretty_goodness 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pretty_goodness 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding corlib v0.1.0 (available: v0.4.1)
[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]     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 delegate v0.13.4
[INFO] [stderr]   Downloaded corlib v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac718cb4c126fb7c796fd3a9fcb71c2a2c57cca5bd548137835ac1bf0a7e0757
[INFO] running `Command { std: "docker" "start" "-a" "ac718cb4c126fb7c796fd3a9fcb71c2a2c57cca5bd548137835ac1bf0a7e0757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac718cb4c126fb7c796fd3a9fcb71c2a2c57cca5bd548137835ac1bf0a7e0757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac718cb4c126fb7c796fd3a9fcb71c2a2c57cca5bd548137835ac1bf0a7e0757", kill_on_drop: false }`
[INFO] [stdout] ac718cb4c126fb7c796fd3a9fcb71c2a2c57cca5bd548137835ac1bf0a7e0757
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 824d67977e8971893b397dc72cfb93a57e65863beb469acec00f08560567b0af
[INFO] running `Command { std: "docker" "start" "-a" "824d67977e8971893b397dc72cfb93a57e65863beb469acec00f08560567b0af", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling delegate v0.13.4
[INFO] [stderr]     Checking corlib v0.1.0
[INFO] [stderr]     Checking pretty_goodness v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `default` and `vec::Vec`
[INFO] [stdout]  --> src/json/pretty_er.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{vec::Vec, default, str::Chars};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `default` and `vec::Vec`
[INFO] [stdout]  --> src/json/pretty_er.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{vec::Vec, default, str::Chars};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_previous_object` is never read
[INFO] [stdout]    --> src/json/pretty_er.rs:146:25
[INFO] [stdout]     |
[INFO] [stdout] 146 |                         has_previous_object = true;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_previous_object` is never read
[INFO] [stdout]    --> src/json/pretty_er.rs:146:25
[INFO] [stdout]     |
[INFO] [stdout] 146 |                         has_previous_object = true;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_previous_object` is never read
[INFO] [stdout]    --> src/json/pretty_er.rs:169:25
[INFO] [stdout]     |
[INFO] [stdout] 169 |                         has_previous_object = true;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_previous_object` is never read
[INFO] [stdout]    --> src/json/pretty_er.rs:194:25
[INFO] [stdout]     |
[INFO] [stdout] 194 |                         has_previous_object = true;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_previous_object` is never read
[INFO] [stdout]    --> src/json/pretty_er.rs:246:25
[INFO] [stdout]     |
[INFO] [stdout] 246 |                         has_previous_object = true;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_previous_object` is never read
[INFO] [stdout]    --> src/json/pretty_er.rs:169:25
[INFO] [stdout]     |
[INFO] [stdout] 169 |                         has_previous_object = true;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_previous_object` is never read
[INFO] [stdout]    --> src/json/pretty_er.rs:194:25
[INFO] [stdout]     |
[INFO] [stdout] 194 |                         has_previous_object = true;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_previous_object` is never read
[INFO] [stdout]    --> src/json/pretty_er.rs:246:25
[INFO] [stdout]     |
[INFO] [stdout] 246 |                         has_previous_object = true;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `FoundEndOfString`, `FoundEndOfValue`, and `CompletedValue` are never constructed
[INFO] [stdout]   --> src/json/pretty_er.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | enum LastAction
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 38 |     FoundEndOfString,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 |     FoundEndOfValue,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     CompletedValue
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `FoundEndOfString`, `FoundEndOfValue`, and `CompletedValue` are never constructed
[INFO] [stdout]   --> src/json/pretty_er.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | enum LastAction
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 38 |     FoundEndOfString,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 |     FoundEndOfValue,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     CompletedValue
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.97s
[INFO] running `Command { std: "docker" "inspect" "824d67977e8971893b397dc72cfb93a57e65863beb469acec00f08560567b0af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "824d67977e8971893b397dc72cfb93a57e65863beb469acec00f08560567b0af", kill_on_drop: false }`
[INFO] [stdout] 824d67977e8971893b397dc72cfb93a57e65863beb469acec00f08560567b0af