[INFO] fetching crate snarky-parrot 0.2.0...
[INFO] testing snarky-parrot-0.2.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate snarky-parrot 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate snarky-parrot 0.2.0
[INFO] finished tweaking crates.io crate snarky-parrot 0.2.0
[INFO] tweaked toml for crates.io crate snarky-parrot 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate snarky-parrot 0.2.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate snarky-parrot 0.2.0 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2551e63ee6e34b854f792c8c02ce414d411f33a708f427bcbd968bcd2a43666d
[INFO] running `Command { std: "docker" "start" "-a" "2551e63ee6e34b854f792c8c02ce414d411f33a708f427bcbd968bcd2a43666d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2551e63ee6e34b854f792c8c02ce414d411f33a708f427bcbd968bcd2a43666d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2551e63ee6e34b854f792c8c02ce414d411f33a708f427bcbd968bcd2a43666d", kill_on_drop: false }`
[INFO] [stdout] 2551e63ee6e34b854f792c8c02ce414d411f33a708f427bcbd968bcd2a43666d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 138301eaa5844ac104e8918e36e8607a707543192ad7d467cb3dd0474aa1a01e
[INFO] running `Command { std: "docker" "start" "-a" "138301eaa5844ac104e8918e36e8607a707543192ad7d467cb3dd0474aa1a01e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.28
[INFO] [stderr]    Compiling thiserror v1.0.28
[INFO] [stderr]    Compiling snarky-parrot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/lib.rs:9:41
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn generate_rule_from_data(content: &str, key_size: usize) -> Result<MarkovChainRule, Error> {
[INFO] [stdout]   |                                         ^^^^ the lifetime is elided here ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn generate_rule_from_data(content: &str, key_size: usize) -> Result<MarkovChainRule<'_>, Error> {
[INFO] [stdout]   |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.29s
[INFO] running `Command { std: "docker" "inspect" "138301eaa5844ac104e8918e36e8607a707543192ad7d467cb3dd0474aa1a01e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "138301eaa5844ac104e8918e36e8607a707543192ad7d467cb3dd0474aa1a01e", kill_on_drop: false }`
[INFO] [stdout] 138301eaa5844ac104e8918e36e8607a707543192ad7d467cb3dd0474aa1a01e
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a829d60cbc2730224eb1beed2725cb6c2fe064d0de8a4110ff9a8502484dcd6
[INFO] running `Command { std: "docker" "start" "-a" "1a829d60cbc2730224eb1beed2725cb6c2fe064d0de8a4110ff9a8502484dcd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling snarky-parrot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/lib.rs:9:41
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn generate_rule_from_data(content: &str, key_size: usize) -> Result<MarkovChainRule, Error> {
[INFO] [stdout]   |                                         ^^^^ the lifetime is elided here ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn generate_rule_from_data(content: &str, key_size: usize) -> Result<MarkovChainRule<'_>, Error> {
[INFO] [stdout]   |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/lib.rs:9:41
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn generate_rule_from_data(content: &str, key_size: usize) -> Result<MarkovChainRule, Error> {
[INFO] [stdout]   |                                         ^^^^ the lifetime is elided here ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn generate_rule_from_data(content: &str, key_size: usize) -> Result<MarkovChainRule<'_>, Error> {
[INFO] [stdout]   |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "1a829d60cbc2730224eb1beed2725cb6c2fe064d0de8a4110ff9a8502484dcd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a829d60cbc2730224eb1beed2725cb6c2fe064d0de8a4110ff9a8502484dcd6", kill_on_drop: false }`
[INFO] [stdout] 1a829d60cbc2730224eb1beed2725cb6c2fe064d0de8a4110ff9a8502484dcd6
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 98049f62734ba9e6fe9c484169211da94907513636c3f70a0068b949dfd8dd3c
[INFO] running `Command { std: "docker" "start" "-a" "98049f62734ba9e6fe9c484169211da94907513636c3f70a0068b949dfd8dd3c", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]  --> src/lib.rs:9:41
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn generate_rule_from_data(content: &str, key_size: usize) -> Result<MarkovChainRule, Error> {
[INFO] [stderr]   |                                         ^^^^ the lifetime is elided here ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]   |
[INFO] [stderr]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn generate_rule_from_data(content: &str, key_size: usize) -> Result<MarkovChainRule<'_>, Error> {
[INFO] [stderr]   |                                                                                         ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `snarky-parrot` (lib) generated 1 warning (run `cargo fix --lib -p snarky-parrot` to apply 1 suggestion)
[INFO] [stderr] warning: `snarky-parrot` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/snarky_parrot-3d15825bb117f3c3)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests snarky_parrot
[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] [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" "98049f62734ba9e6fe9c484169211da94907513636c3f70a0068b949dfd8dd3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98049f62734ba9e6fe9c484169211da94907513636c3f70a0068b949dfd8dd3c", kill_on_drop: false }`
[INFO] [stdout] 98049f62734ba9e6fe9c484169211da94907513636c3f70a0068b949dfd8dd3c
