[INFO] fetching crate trying 0.5.1...
[INFO] testing trying-0.5.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate trying 0.5.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate trying 0.5.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate trying 0.5.1
[INFO] tweaked toml for crates.io crate trying 0.5.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate trying 0.5.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate trying 0.5.1 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.32
[INFO] [stderr]   Downloaded unicode-ident v1.0.11
[INFO] [stderr]   Downloaded proc-macro2 v1.0.66
[INFO] [stderr]   Downloaded criterion-plot v0.5.0
[INFO] [stderr]   Downloaded clap_lex v0.5.0
[INFO] [stderr]   Downloaded cast v0.3.0
[INFO] [stderr]   Downloaded anes v0.1.6
[INFO] [stderr]   Downloaded ciborium-ll v0.2.1
[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded clap v4.3.19
[INFO] [stderr]   Downloaded bumpalo v3.13.0
[INFO] [stderr]   Downloaded clap_builder v4.3.19
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.8
[INFO] [stderr]   Downloaded rustix v0.38.4
[INFO] [stderr]   Downloaded itertools v0.10.5
[INFO] [stderr]   Downloaded rayon-core v1.11.0
[INFO] [stderr]   Downloaded aho-corasick v1.0.2
[INFO] [stderr]   Downloaded memchr v2.5.0
[INFO] [stderr]   Downloaded criterion v0.5.1
[INFO] [stderr]   Downloaded plotters v0.3.5
[INFO] [stderr]   Downloaded rayon v1.7.0
[INFO] [stderr]   Downloaded libc v0.2.147
[INFO] [stderr]   Downloaded serde_derive v1.0.178
[INFO] [stderr]   Downloaded cc v1.0.79
[INFO] [stderr]   Downloaded log v0.4.19
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.48.0
[INFO] [stderr]   Downloaded regex v1.9.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.15
[INFO] [stderr]   Downloaded ciborium v0.2.1
[INFO] [stderr]   Downloaded regex-syntax v0.7.4
[INFO] [stderr]   Downloaded anstyle v1.0.1
[INFO] [stderr]   Downloaded bitflags v2.3.3
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.48.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.48.0
[INFO] [stderr]   Downloaded errno v0.3.1
[INFO] [stderr]   Downloaded is-terminal v0.4.9
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.3
[INFO] [stderr]   Downloaded num_cpus v1.16.0
[INFO] [stderr]   Downloaded tinytemplate v1.2.1
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded walkdir v2.3.3
[INFO] [stderr]   Downloaded either v1.9.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.48.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.48.0
[INFO] [stderr]   Downloaded regex-automata v0.3.4
[INFO] [stderr]   Downloaded windows_i686_gnu v0.48.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.48.0
[INFO] [stderr]   Downloaded syn v2.0.27
[INFO] [stderr]   Downloaded ciborium-io v0.2.1
[INFO] [stderr]   Downloaded plotters-backend v0.3.5
[INFO] [stderr]   Downloaded windows-targets v0.48.1
[INFO] [stderr]   Downloaded memoffset v0.9.0
[INFO] [stderr]   Downloaded serde_json v1.0.104
[INFO] [stderr]   Downloaded oorandom v11.1.3
[INFO] [stderr]   Downloaded plotters-svg v0.3.5
[INFO] [stderr]   Downloaded hermit-abi v0.3.2
[INFO] [stderr]   Downloaded itertools v0.11.0
[INFO] [stderr]   Downloaded serde v1.0.178
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 477daeecb4ab5da46fdce1418a540e4e8fb0caa0d3a4aa1127fe806cee2030c4
[INFO] running `Command { std: "docker" "start" "-a" "477daeecb4ab5da46fdce1418a540e4e8fb0caa0d3a4aa1127fe806cee2030c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "477daeecb4ab5da46fdce1418a540e4e8fb0caa0d3a4aa1127fe806cee2030c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "477daeecb4ab5da46fdce1418a540e4e8fb0caa0d3a4aa1127fe806cee2030c4", kill_on_drop: false }`
[INFO] [stdout] 477daeecb4ab5da46fdce1418a540e4e8fb0caa0d3a4aa1127fe806cee2030c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6673400a92edbb6ac9f85b3a20e4f382f692f80d19f3715680c635249a2d941b
[INFO] running `Command { std: "docker" "start" "-a" "6673400a92edbb6ac9f85b3a20e4f382f692f80d19f3715680c635249a2d941b", kill_on_drop: false }`
[INFO] [stderr]    Compiling trying v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/iterator.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 199 |             let mut node = match nodes.get_mut(index) {
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/trie.rs:382:26
[INFO] [stdout]     |
[INFO] [stdout] 382 |                 Some((i, mut n)) => {
[INFO] [stdout]     |                          ----^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/trie.rs:436:24
[INFO] [stdout]     |
[INFO] [stdout] 436 |         let closure = |mut n: &mut Node<A, V>| {
[INFO] [stdout]     |                        ----^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "6673400a92edbb6ac9f85b3a20e4f382f692f80d19f3715680c635249a2d941b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6673400a92edbb6ac9f85b3a20e4f382f692f80d19f3715680c635249a2d941b", kill_on_drop: false }`
[INFO] [stdout] 6673400a92edbb6ac9f85b3a20e4f382f692f80d19f3715680c635249a2d941b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af8242dcda467f722be8bbdf277c2e3886f408af931bda372f9bb9fd9629aa3b
[INFO] running `Command { std: "docker" "start" "-a" "af8242dcda467f722be8bbdf277c2e3886f408af931bda372f9bb9fd9629aa3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling serde v1.0.178
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.178
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.3
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling ciborium-io v0.2.1
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling anstyle v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling plotters-backend v0.3.5
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling clap_builder v4.3.19
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling plotters-svg v0.3.5
[INFO] [stderr]    Compiling ciborium-ll v0.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/iterator.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 199 |             let mut node = match nodes.get_mut(index) {
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/trie.rs:382:26
[INFO] [stdout]     |
[INFO] [stdout] 382 |                 Some((i, mut n)) => {
[INFO] [stdout]     |                          ----^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/trie.rs:436:24
[INFO] [stdout]     |
[INFO] [stdout] 436 |         let closure = |mut n: &mut Node<A, V>| {
[INFO] [stdout]     |                        ----^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex-automata v0.3.4
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling plotters v0.3.5
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling clap v4.3.19
[INFO] [stderr]    Compiling ciborium v0.2.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling trying v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `Trie<Vec<usize>, usize, usize>: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> src/trie.rs:678:43
[INFO] [stdout]      |
[INFO] [stdout]  678 |         let t_str = serde_json::to_string(&t1).expect("serializing");
[INFO] [stdout]      |                     --------------------- ^^^ the trait `serde::ser::Serialize` is not implemented for `Trie<Vec<usize>, usize, usize>`
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `serde::ser::Serialize`:
[INFO] [stdout]                &'a T
[INFO] [stdout]                &'a mut T
[INFO] [stdout]                ()
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]                (T0, T1, T2, T3, T4)
[INFO] [stdout]                (T0, T1, T2, T3, T4, T5)
[INFO] [stdout]              and 129 others
[INFO] [stdout] note: required by a bound in `serde_json::to_string`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.104/src/ser.rs:2196:17
[INFO] [stdout]      |
[INFO] [stdout] 2194 | pub fn to_string<T>(value: &T) -> Result<String>
[INFO] [stdout]      |        --------- required by a bound in this function
[INFO] [stdout] 2195 | where
[INFO] [stdout] 2196 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `to_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Trie<Vec<usize>, usize, usize>: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]     --> src/trie.rs:679:41
[INFO] [stdout]      |
[INFO] [stdout]  679 |         let t2: TrieVec<usize, usize> = serde_json::from_str(&t_str).expect("deserializing");
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `Trie<Vec<usize>, usize, usize>`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `serde::de::Deserialize<'de>`:
[INFO] [stdout]                &'a Path
[INFO] [stdout]                &'a [u8]
[INFO] [stdout]                &'a str
[INFO] [stdout]                ()
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]                (T0, T1, T2, T3, T4)
[INFO] [stdout]              and 129 others
[INFO] [stdout] note: required by a bound in `serde_json::from_str`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.104/src/de.rs:2640:8
[INFO] [stdout]      |
[INFO] [stdout] 2638 | pub fn from_str<'a, T>(s: &'a str) -> Result<T>
[INFO] [stdout]      |        -------- required by a bound in this function
[INFO] [stdout] 2639 | where
[INFO] [stdout] 2640 |     T: de::Deserialize<'a>,
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^ required by this bound in `from_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/iterator.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 199 |             let mut node = match nodes.get_mut(index) {
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/trie.rs:382:26
[INFO] [stdout]     |
[INFO] [stdout] 382 |                 Some((i, mut n)) => {
[INFO] [stdout]     |                          ----^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/trie.rs:436:24
[INFO] [stdout]     |
[INFO] [stdout] 436 |         let closure = |mut n: &mut Node<A, V>| {
[INFO] [stdout]     |                        ----^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `trying` (lib test) due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "af8242dcda467f722be8bbdf277c2e3886f408af931bda372f9bb9fd9629aa3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af8242dcda467f722be8bbdf277c2e3886f408af931bda372f9bb9fd9629aa3b", kill_on_drop: false }`
[INFO] [stdout] af8242dcda467f722be8bbdf277c2e3886f408af931bda372f9bb9fd9629aa3b
