[INFO] fetching crate randlib 0.2.0...
[INFO] testing randlib-0.2.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_getrandom_patch_0
[INFO] extracting crate randlib 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate randlib 0.2.0
[INFO] finished tweaking crates.io crate randlib 0.2.0
[INFO] tweaked toml for crates.io crate randlib 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate randlib 0.2.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate randlib 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e995d8d95ee66cf0d1f16e2e6d0c363abbfe5de68445b1944ffd53e62d9d4163
[INFO] running `Command { std: "docker" "start" "-a" "e995d8d95ee66cf0d1f16e2e6d0c363abbfe5de68445b1944ffd53e62d9d4163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e995d8d95ee66cf0d1f16e2e6d0c363abbfe5de68445b1944ffd53e62d9d4163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e995d8d95ee66cf0d1f16e2e6d0c363abbfe5de68445b1944ffd53e62d9d4163", kill_on_drop: false }`
[INFO] [stdout] e995d8d95ee66cf0d1f16e2e6d0c363abbfe5de68445b1944ffd53e62d9d4163
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] f997b78b133b191fd8fd317ecbff79710c2d5ea8b8142ffc5cc6c7e33f1612ea
[INFO] running `Command { std: "docker" "start" "-a" "f997b78b133b191fd8fd317ecbff79710c2d5ea8b8142ffc5cc6c7e33f1612ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling randlib v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:339:33
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn rand_element<'a, T>(&'a mut self, vector: &'a Vec<T>) -> &T {
[INFO] [stdout]     |                                 ^^                    ^^            -- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                                 |                     |
[INFO] [stdout]     |                                 |                     these lifetimes flow to the output
[INFO] [stdout]     |                                 these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn rand_element<'a, T>(&'a mut self, vector: &'a Vec<T>) -> &'a T {
[INFO] [stdout]     |                                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "f997b78b133b191fd8fd317ecbff79710c2d5ea8b8142ffc5cc6c7e33f1612ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f997b78b133b191fd8fd317ecbff79710c2d5ea8b8142ffc5cc6c7e33f1612ea", kill_on_drop: false }`
[INFO] [stdout] f997b78b133b191fd8fd317ecbff79710c2d5ea8b8142ffc5cc6c7e33f1612ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] ee077e9773e5f8a33f9cb379f2d268e17178eaf4291a8422bcdc358480bfc50c
[INFO] running `Command { std: "docker" "start" "-a" "ee077e9773e5f8a33f9cb379f2d268e17178eaf4291a8422bcdc358480bfc50c", kill_on_drop: false }`
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:339:33
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn rand_element<'a, T>(&'a mut self, vector: &'a Vec<T>) -> &T {
[INFO] [stdout]     |                                 ^^                    ^^            -- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                                 |                     |
[INFO] [stdout]     |                                 |                     these lifetimes flow to the output
[INFO] [stdout]     |                                 these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn rand_element<'a, T>(&'a mut self, vector: &'a Vec<T>) -> &'a T {
[INFO] [stdout]     |                                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling randlib v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:339:33
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn rand_element<'a, T>(&'a mut self, vector: &'a Vec<T>) -> &T {
[INFO] [stdout]     |                                 ^^                    ^^            -- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                                 |                     |
[INFO] [stdout]     |                                 |                     these lifetimes flow to the output
[INFO] [stdout]     |                                 these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn rand_element<'a, T>(&'a mut self, vector: &'a Vec<T>) -> &'a T {
[INFO] [stdout]     |                                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "ee077e9773e5f8a33f9cb379f2d268e17178eaf4291a8422bcdc358480bfc50c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee077e9773e5f8a33f9cb379f2d268e17178eaf4291a8422bcdc358480bfc50c", kill_on_drop: false }`
[INFO] [stdout] ee077e9773e5f8a33f9cb379f2d268e17178eaf4291a8422bcdc358480bfc50c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 354e59fbf3129113724c9fda5ee9122895335f8d771c73a6ca0d91048294b4a3
[INFO] running `Command { std: "docker" "start" "-a" "354e59fbf3129113724c9fda5ee9122895335f8d771c73a6ca0d91048294b4a3", kill_on_drop: false }`
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/lib.rs:339:33
[INFO] [stderr]     |
[INFO] [stderr] 339 |     pub fn rand_element<'a, T>(&'a mut self, vector: &'a Vec<T>) -> &T {
[INFO] [stderr]     |                                 ^^                    ^^            -- the lifetime gets resolved as `'a`
[INFO] [stderr]     |                                 |                     |
[INFO] [stderr]     |                                 |                     these lifetimes flow to the output
[INFO] [stderr]     |                                 these lifetimes flow to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 339 |     pub fn rand_element<'a, T>(&'a mut self, vector: &'a Vec<T>) -> &'a T {
[INFO] [stderr]     |                                                                      ++
[INFO] [stderr] 
[INFO] [stderr] warning: `randlib` (lib) generated 1 warning (run `cargo fix --lib -p randlib` to apply 1 suggestion)
[INFO] [stderr] warning: `randlib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/randlib-16df63f568dedacd)
[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" "354e59fbf3129113724c9fda5ee9122895335f8d771c73a6ca0d91048294b4a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "354e59fbf3129113724c9fda5ee9122895335f8d771c73a6ca0d91048294b4a3", kill_on_drop: false }`
[INFO] [stdout] 354e59fbf3129113724c9fda5ee9122895335f8d771c73a6ca0d91048294b4a3