[INFO] fetching crate pretty-print 0.1.9...
[INFO] checking pretty-print-0.1.9 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate pretty-print 0.1.9 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate pretty-print 0.1.9
[INFO] finished tweaking crates.io crate pretty-print 0.1.9
[INFO] tweaked toml for crates.io crate pretty-print 0.1.9 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pretty-print 0.1.9 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cd1429b2fe60b00551459e6b9cc55e850da30498e0145c10ce340d4dc1f2efc
[INFO] running `Command { std: "docker" "start" "-a" "6cd1429b2fe60b00551459e6b9cc55e850da30498e0145c10ce340d4dc1f2efc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cd1429b2fe60b00551459e6b9cc55e850da30498e0145c10ce340d4dc1f2efc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd1429b2fe60b00551459e6b9cc55e850da30498e0145c10ce340d4dc1f2efc", kill_on_drop: false }`
[INFO] [stdout] 6cd1429b2fe60b00551459e6b9cc55e850da30498e0145c10ce340d4dc1f2efc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f1cccd013159bf011ff0eaf4b73224bdd1418fe3631ba0a8c8bb83261528105
[INFO] running `Command { std: "docker" "start" "-a" "9f1cccd013159bf011ff0eaf4b73224bdd1418fe3631ba0a8c8bb83261528105", kill_on_drop: false }`
[INFO] [stderr]     Checking color-ansi v0.1.0
[INFO] [stderr]     Checking pretty-print v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/render/mod.rs:55:19
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn pretty(&self, width: usize) -> PrettyFormatter {
[INFO] [stdout]    |                   ^^^^^                   --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn pretty(&self, width: usize) -> PrettyFormatter<'_> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/render/mod.rs:55:19
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn pretty(&self, width: usize) -> PrettyFormatter {
[INFO] [stdout]    |                   ^^^^^                   --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn pretty(&self, width: usize) -> PrettyFormatter<'_> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SExp` is never used
[INFO] [stdout]  --> tests/readme.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum SExp {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_doc` and `to_pretty` are never used
[INFO] [stdout]   --> tests/readme.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl SExp {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 9  |     /// Return a pretty printed format of self.
[INFO] [stdout] 10 |     pub fn to_doc(&self) -> PrettyTree {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn to_pretty(&self, width: usize) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> tests/readme.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "9f1cccd013159bf011ff0eaf4b73224bdd1418fe3631ba0a8c8bb83261528105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f1cccd013159bf011ff0eaf4b73224bdd1418fe3631ba0a8c8bb83261528105", kill_on_drop: false }`
[INFO] [stdout] 9f1cccd013159bf011ff0eaf4b73224bdd1418fe3631ba0a8c8bb83261528105