[INFO] cloning repository https://github.com/personnumber3377/rust_random_valid_regex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/personnumber3377/rust_random_valid_regex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpersonnumber3377%2Frust_random_valid_regex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpersonnumber3377%2Frust_random_valid_regex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 91bd2f108c4f46848d538769c7d6ddde56afbd94
[INFO] fixing personnumber3377/rust_random_valid_regex against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpersonnumber3377%2Frust_random_valid_regex" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/personnumber3377/rust_random_valid_regex
[INFO] finished tweaking git repo https://github.com/personnumber3377/rust_random_valid_regex
[INFO] tweaked toml for git repo https://github.com/personnumber3377/rust_random_valid_regex written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/personnumber3377/rust_random_valid_regex on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/personnumber3377/rust_random_valid_regex 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arbitrary v1.4.1
[INFO] [stderr]   Downloaded derive_arbitrary v1.4.1
[INFO] [stderr]   Downloaded bincode_derive v2.0.0-rc.3
[INFO] [stderr]   Downloaded cc v1.2.14
[INFO] [stderr]   Downloaded virtue v0.0.13
[INFO] [stderr]   Downloaded bincode v2.0.0-rc.3
[INFO] [stderr]   Downloaded libfuzzer-sys v0.4.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 724864a26ff88eea335eade4f91f98daa10f63bb0945cd6ab0d0c73276e78fa2
[INFO] running `Command { std: "docker" "start" "724864a26ff88eea335eade4f91f98daa10f63bb0945cd6ab0d0c73276e78fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "724864a26ff88eea335eade4f91f98daa10f63bb0945cd6ab0d0c73276e78fa2" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "724864a26ff88eea335eade4f91f98daa10f63bb0945cd6ab0d0c73276e78fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "724864a26ff88eea335eade4f91f98daa10f63bb0945cd6ab0d0c73276e78fa2" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling virtue v0.0.13
[INFO] [stderr]    Compiling bincode_derive v2.0.0-rc.3
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]     Checking bincode v2.0.0-rc.3
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling cc v1.2.14
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.9
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling derive_arbitrary v1.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking arbitrary v1.4.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust_random_valid_regex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `serialize` in crate `bincode`
[INFO] [stdout]   --> src/main.rs:52:34
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut ast_bytes = bincode::serialize(&ast).expect("Failed to serialize AST");
[INFO] [stdout]    |                                  ^^^^^^^^^ not found in `bincode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `deserialize` in crate `bincode`
[INFO] [stdout]   --> src/main.rs:58:43
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let mutated_ast: Ast = match bincode::deserialize(&ast_bytes) {
[INFO] [stdout]    |                                           ^^^^^^^^^^^ not found in `bincode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arbitrary` and `Unstructured`
[INFO] [stdout]   --> src/main.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 | use arbitrary::{Arbitrary, Unstructured};
[INFO] [stdout]    |                 ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `serialize` in crate `bincode`
[INFO] [stdout]   --> src/main.rs:52:34
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut ast_bytes = bincode::serialize(&ast).expect("Failed to serialize AST");
[INFO] [stdout]    |                                  ^^^^^^^^^ not found in `bincode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `deserialize` in crate `bincode`
[INFO] [stdout]   --> src/main.rs:58:43
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let mutated_ast: Ast = match bincode::deserialize(&ast_bytes) {
[INFO] [stdout]    |                                           ^^^^^^^^^^^ not found in `bincode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arbitrary` and `Unstructured`
[INFO] [stdout]   --> src/main.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 | use arbitrary::{Arbitrary, Unstructured};
[INFO] [stdout]    |                 ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `gen_range` found for struct `ThreadRng` in the current scope
[INFO] [stdout]    --> src/main.rs:79:21
[INFO] [stdout]     |
[INFO] [stdout]  79 |     let index = rng.gen_range(0..bytes.len());
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand-0.8.5/src/rng.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn gen_range<T, R>(&mut self, range: R) -> T
[INFO] [stdout]     |        --------- the method is available for `ThreadRng` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: there is a method `gen_ratio` with a similar name, but with different arguments
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand-0.8.5/src/rng.rs:299:5
[INFO] [stdout]     |
[INFO] [stdout] 299 |     fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: trait `Rng` which provides `gen_range` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]  29 + use rand::Rng;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `gen_range` found for struct `ThreadRng` in the current scope
[INFO] [stdout]    --> src/main.rs:79:21
[INFO] [stdout]     |
[INFO] [stdout]  79 |     let index = rng.gen_range(0..bytes.len());
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand-0.8.5/src/rng.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn gen_range<T, R>(&mut self, range: R) -> T
[INFO] [stdout]     |        --------- the method is available for `ThreadRng` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: there is a method `gen_ratio` with a similar name, but with different arguments
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand-0.8.5/src/rng.rs:299:5
[INFO] [stdout]     |
[INFO] [stdout] 299 |     fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: trait `Rng` which provides `gen_range` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]  29 + use rand::Rng;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_random_valid_regex` (bin "rust_random_valid_regex") due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust_random_valid_regex` (bin "rust_random_valid_regex" test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "724864a26ff88eea335eade4f91f98daa10f63bb0945cd6ab0d0c73276e78fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "724864a26ff88eea335eade4f91f98daa10f63bb0945cd6ab0d0c73276e78fa2", kill_on_drop: false }`
[INFO] [stdout] 724864a26ff88eea335eade4f91f98daa10f63bb0945cd6ab0d0c73276e78fa2
