[INFO] fetching crate dtree 0.1.0...
[INFO] testing dtree-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate dtree 0.1.0 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate dtree 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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" "+1.60.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d557540b8de451bfa6668e6c541a218a5a11060383e9084998e0aedda1be1be9
[INFO] running `Command { std: "docker" "start" "-a" "d557540b8de451bfa6668e6c541a218a5a11060383e9084998e0aedda1be1be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d557540b8de451bfa6668e6c541a218a5a11060383e9084998e0aedda1be1be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d557540b8de451bfa6668e6c541a218a5a11060383e9084998e0aedda1be1be9", kill_on_drop: false }`
[INFO] [stdout] d557540b8de451bfa6668e6c541a218a5a11060383e9084998e0aedda1be1be9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd968b0618543e5fa3c935ad336fccd80c581021cd759af70a4e504a364ad8dc
[INFO] running `Command { std: "docker" "start" "-a" "bd968b0618543e5fa3c935ad336fccd80c581021cd759af70a4e504a364ad8dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[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]     |                                                      ^^^^^
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 250 - pub fn parse_dtree (input: &str) -> Result<Tree, Box<Debug>> {
[INFO] [stdout] 250 + pub fn parse_dtree (input: &str) -> Result<Tree, Box<dyn Debug>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.28s
[INFO] running `Command { std: "docker" "inspect" "bd968b0618543e5fa3c935ad336fccd80c581021cd759af70a4e504a364ad8dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd968b0618543e5fa3c935ad336fccd80c581021cd759af70a4e504a364ad8dc", kill_on_drop: false }`
[INFO] [stdout] bd968b0618543e5fa3c935ad336fccd80c581021cd759af70a4e504a364ad8dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6b8cfe4a1fd29808770a540adaa7ce77f30478f5f1db5ec8b2c3b23f716c57c
[INFO] running `Command { std: "docker" "start" "-a" "b6b8cfe4a1fd29808770a540adaa7ce77f30478f5f1db5ec8b2c3b23f716c57c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]     |                                                      ^^^^^
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 250 - pub fn parse_dtree (input: &str) -> Result<Tree, Box<Debug>> {
[INFO] [stdout] 250 + pub fn parse_dtree (input: &str) -> Result<Tree, Box<dyn Debug>> {
[INFO] [stdout]     | 
[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]     |                                                      ^^^^^
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 250 - pub fn parse_dtree (input: &str) -> Result<Tree, Box<Debug>> {
[INFO] [stdout] 250 + pub fn parse_dtree (input: &str) -> Result<Tree, Box<dyn Debug>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.89s
[INFO] running `Command { std: "docker" "inspect" "b6b8cfe4a1fd29808770a540adaa7ce77f30478f5f1db5ec8b2c3b23f716c57c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b8cfe4a1fd29808770a540adaa7ce77f30478f5f1db5ec8b2c3b23f716c57c", kill_on_drop: false }`
[INFO] [stdout] b6b8cfe4a1fd29808770a540adaa7ce77f30478f5f1db5ec8b2c3b23f716c57c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6629abfe80fa67d34580070b06221c38d1fc3fe6352fb28f17417b9022bea898
[INFO] running `Command { std: "docker" "start" "-a" "6629abfe80fa67d34580070b06221c38d1fc3fe6352fb28f17417b9022bea898", 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]     |                                                      ^^^^^
[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] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 250 - pub fn parse_dtree (input: &str) -> Result<Tree, Box<Debug>> {
[INFO] [stderr] 250 + pub fn parse_dtree (input: &str) -> Result<Tree, Box<dyn Debug>> {
[INFO] [stderr]     | 
[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 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dtree-51d49a7824a90691)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test parser::mapping_test ... ok
[INFO] [stdout] test parser::parse_desc_test ... ok
[INFO] [stdout] test parser::parse_identifier_test ... ok
[INFO] [stdout] test parser::section_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dtree-f7acab859e882a2b)
[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] [stdout] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[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" "6629abfe80fa67d34580070b06221c38d1fc3fe6352fb28f17417b9022bea898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6629abfe80fa67d34580070b06221c38d1fc3fe6352fb28f17417b9022bea898", kill_on_drop: false }`
[INFO] [stdout] 6629abfe80fa67d34580070b06221c38d1fc3fe6352fb28f17417b9022bea898