[INFO] fetching crate dtree 0.1.0...
[INFO] testing dtree-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate dtree 0.1.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate dtree 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dtree 0.1.0
[INFO] finished tweaking crates.io crate dtree 0.1.0
[INFO] tweaked toml for crates.io crate dtree 0.1.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f113aa3f72a8ae333881cc52a7f7dc949ee5af50fe393a30ae3d105669551cc
[INFO] running `Command { std: "docker" "start" "-a" "7f113aa3f72a8ae333881cc52a7f7dc949ee5af50fe393a30ae3d105669551cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f113aa3f72a8ae333881cc52a7f7dc949ee5af50fe393a30ae3d105669551cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f113aa3f72a8ae333881cc52a7f7dc949ee5af50fe393a30ae3d105669551cc", kill_on_drop: false }`
[INFO] [stdout] 7f113aa3f72a8ae333881cc52a7f7dc949ee5af50fe393a30ae3d105669551cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb18cb4c74b47163b660cd68b137baf789fe2952b189e137b6ce40fd03422f44
[INFO] running `Command { std: "docker" "start" "-a" "eb18cb4c74b47163b660cd68b137baf789fe2952b189e137b6ce40fd03422f44", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling dtree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/parser.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |         if (!c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-') {
[INFO] [stdout]    |            ^                                                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -         if (!c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-') {
[INFO] [stdout] 49 +         if !c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-' {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:250:54
[INFO] [stdout]     |
[INFO] [stdout] 250 | pub fn parse_dtree (input: &str) -> Result<Tree, Box<Debug>> {
[INFO] [stdout]     |                                                      ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.53s
[INFO] running `Command { std: "docker" "inspect" "eb18cb4c74b47163b660cd68b137baf789fe2952b189e137b6ce40fd03422f44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb18cb4c74b47163b660cd68b137baf789fe2952b189e137b6ce40fd03422f44", kill_on_drop: false }`
[INFO] [stdout] eb18cb4c74b47163b660cd68b137baf789fe2952b189e137b6ce40fd03422f44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7af000f384c942c863fa9c188ed80a7abe85dc78732ccd21cc3b43a4e0cdaec7
[INFO] running `Command { std: "docker" "start" "-a" "7af000f384c942c863fa9c188ed80a7abe85dc78732ccd21cc3b43a4e0cdaec7", kill_on_drop: false }`
[INFO] [stderr]    Compiling dtree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/parser.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |         if (!c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-') {
[INFO] [stdout]    |            ^                                                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -         if (!c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-') {
[INFO] [stdout] 49 +         if !c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-' {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:250:54
[INFO] [stdout]     |
[INFO] [stdout] 250 | pub fn parse_dtree (input: &str) -> Result<Tree, Box<Debug>> {
[INFO] [stdout]     |                                                      ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/parser.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |         if (!c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-') {
[INFO] [stdout]    |            ^                                                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -         if (!c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-') {
[INFO] [stdout] 49 +         if !c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-' {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:250:54
[INFO] [stdout]     |
[INFO] [stdout] 250 | pub fn parse_dtree (input: &str) -> Result<Tree, Box<Debug>> {
[INFO] [stdout]     |                                                      ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "7af000f384c942c863fa9c188ed80a7abe85dc78732ccd21cc3b43a4e0cdaec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af000f384c942c863fa9c188ed80a7abe85dc78732ccd21cc3b43a4e0cdaec7", kill_on_drop: false }`
[INFO] [stdout] 7af000f384c942c863fa9c188ed80a7abe85dc78732ccd21cc3b43a4e0cdaec7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 87f2a96f73f65fe07a364f9b43a282efd19aa11753131ddc79a35bf672501d47
[INFO] running `Command { std: "docker" "start" "-a" "87f2a96f73f65fe07a364f9b43a282efd19aa11753131ddc79a35bf672501d47", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/parser.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |         if (!c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-') {
[INFO] [stderr]    |            ^                                                             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 49 -         if (!c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-') {
[INFO] [stderr] 49 +         if !c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-' {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:250:54
[INFO] [stderr]     |
[INFO] [stderr] 250 | pub fn parse_dtree (input: &str) -> Result<Tree, Box<Debug>> {
[INFO] [stderr]     |                                                      ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `dtree` (lib) generated 2 warnings
[INFO] [stderr] warning: `dtree` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dtree-ad24c30450b2a5d1)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dtree-2697449326ea266f)
[INFO] [stdout] test parser::mapping_test ... ok
[INFO] [stdout] test parser::parse_identifier_test ... ok
[INFO] [stdout] test parser::section_test ... ok
[INFO] [stdout] test parser::parse_desc_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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] [stderr]    Doc-tests dtree
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> /opt/rustwide/workdir/src/parser.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |         if (!c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-') {
[INFO] [stderr]    |            ^                                                             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 49 -         if (!c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-') {
[INFO] [stderr] 49 +         if !c.is_alphabetic() && !c.is_numeric() && c != '_' && c != '-' {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "87f2a96f73f65fe07a364f9b43a282efd19aa11753131ddc79a35bf672501d47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87f2a96f73f65fe07a364f9b43a282efd19aa11753131ddc79a35bf672501d47", kill_on_drop: false }`
[INFO] [stdout] 87f2a96f73f65fe07a364f9b43a282efd19aa11753131ddc79a35bf672501d47