[INFO] fetching crate retentive-lender 0.1.0...
[INFO] building retentive-lender-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate retentive-lender 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate retentive-lender 0.1.0
[INFO] finished tweaking crates.io crate retentive-lender 0.1.0
[INFO] tweaked toml for crates.io crate retentive-lender 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate retentive-lender 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72a56f41ccba7d4d93ec7aa1e01c5cd3766ec6442cf2780c00eb2c9c873b8080
[INFO] running `Command { std: "docker" "start" "-a" "72a56f41ccba7d4d93ec7aa1e01c5cd3766ec6442cf2780c00eb2c9c873b8080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72a56f41ccba7d4d93ec7aa1e01c5cd3766ec6442cf2780c00eb2c9c873b8080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a56f41ccba7d4d93ec7aa1e01c5cd3766ec6442cf2780c00eb2c9c873b8080", kill_on_drop: false }`
[INFO] [stdout] 72a56f41ccba7d4d93ec7aa1e01c5cd3766ec6442cf2780c00eb2c9c873b8080
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a125893e57d9fd910ed4e8a1d447eb9fb2578f4addcf2f4e3d8f646a16bdc1c
[INFO] running `Command { std: "docker" "start" "-a" "4a125893e57d9fd910ed4e8a1d447eb9fb2578f4addcf2f4e3d8f646a16bdc1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling retentive-lender v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:112:19
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn borrow(&self, borrower: &str) -> Result<Ref<T>, String> {
[INFO] [stdout]     |                   ^^^^^                            ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided 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] 112 |     pub fn borrow(&self, borrower: &str) -> Result<Ref<'_, T>, String> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:127:23
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn borrow_mut(&self, borrower: &str) -> Result<RefMut<T>, String> {
[INFO] [stdout]     |                       ^^^^^                            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn borrow_mut(&self, borrower: &str) -> Result<RefMut<'_, T>, String> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "4a125893e57d9fd910ed4e8a1d447eb9fb2578f4addcf2f4e3d8f646a16bdc1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a125893e57d9fd910ed4e8a1d447eb9fb2578f4addcf2f4e3d8f646a16bdc1c", kill_on_drop: false }`
[INFO] [stdout] 4a125893e57d9fd910ed4e8a1d447eb9fb2578f4addcf2f4e3d8f646a16bdc1c
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6236fbd7284d9a0acf88ef6d5f4355202ac2f5044ce2d7277baffc422483396b
[INFO] running `Command { std: "docker" "start" "-a" "6236fbd7284d9a0acf88ef6d5f4355202ac2f5044ce2d7277baffc422483396b", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:112:19
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn borrow(&self, borrower: &str) -> Result<Ref<T>, String> {
[INFO] [stdout]     |                   ^^^^^                            ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided 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] 112 |     pub fn borrow(&self, borrower: &str) -> Result<Ref<'_, T>, String> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:127:23
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn borrow_mut(&self, borrower: &str) -> Result<RefMut<T>, String> {
[INFO] [stdout]     |                       ^^^^^                            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn borrow_mut(&self, borrower: &str) -> Result<RefMut<'_, T>, String> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling retentive-lender v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:112:19
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn borrow(&self, borrower: &str) -> Result<Ref<T>, String> {
[INFO] [stdout]     |                   ^^^^^                            ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided 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] 112 |     pub fn borrow(&self, borrower: &str) -> Result<Ref<'_, T>, String> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:127:23
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn borrow_mut(&self, borrower: &str) -> Result<RefMut<T>, String> {
[INFO] [stdout]     |                       ^^^^^                            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn borrow_mut(&self, borrower: &str) -> Result<RefMut<'_, T>, String> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "6236fbd7284d9a0acf88ef6d5f4355202ac2f5044ce2d7277baffc422483396b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6236fbd7284d9a0acf88ef6d5f4355202ac2f5044ce2d7277baffc422483396b", kill_on_drop: false }`
[INFO] [stdout] 6236fbd7284d9a0acf88ef6d5f4355202ac2f5044ce2d7277baffc422483396b
