[INFO] fetching crate betterchars 0.1.4...
[INFO] testing betterchars-0.1.4 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate betterchars 0.1.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate betterchars 0.1.4
[INFO] finished tweaking crates.io crate betterchars 0.1.4
[INFO] tweaked toml for crates.io crate betterchars 0.1.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate betterchars 0.1.4 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20ed7af4c53141b48304f1dd861e30a7ff056b7844508ed3ebb089c4e9fec086
[INFO] running `Command { std: "docker" "start" "-a" "20ed7af4c53141b48304f1dd861e30a7ff056b7844508ed3ebb089c4e9fec086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20ed7af4c53141b48304f1dd861e30a7ff056b7844508ed3ebb089c4e9fec086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ed7af4c53141b48304f1dd861e30a7ff056b7844508ed3ebb089c4e9fec086", kill_on_drop: false }`
[INFO] [stdout] 20ed7af4c53141b48304f1dd861e30a7ff056b7844508ed3ebb089c4e9fec086
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e4c59da326004a7495baa3e163f9fb2933ba5c37a9ba5fd1743c5fdfd6c305f
[INFO] running `Command { std: "docker" "start" "-a" "2e4c59da326004a7495baa3e163f9fb2933ba5c37a9ba5fd1743c5fdfd6c305f", kill_on_drop: false }`
[INFO] [stderr]    Compiling betterchars v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/lib.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn better_chars(&self) -> BetterChars;
[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] 6 |     fn better_chars(&self) -> BetterChars<'_>;
[INFO] [stdout]   |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn better_chars(&self) -> BetterChars {
[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] 14 |     fn better_chars(&self) -> BetterChars<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "2e4c59da326004a7495baa3e163f9fb2933ba5c37a9ba5fd1743c5fdfd6c305f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e4c59da326004a7495baa3e163f9fb2933ba5c37a9ba5fd1743c5fdfd6c305f", kill_on_drop: false }`
[INFO] [stdout] 2e4c59da326004a7495baa3e163f9fb2933ba5c37a9ba5fd1743c5fdfd6c305f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 906e6772b15cceb4f94ea40636029a59bddb816350c64e4a425d1863a780b8e6
[INFO] running `Command { std: "docker" "start" "-a" "906e6772b15cceb4f94ea40636029a59bddb816350c64e4a425d1863a780b8e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling betterchars v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/lib.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn better_chars(&self) -> BetterChars;
[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] 6 |     fn better_chars(&self) -> BetterChars<'_>;
[INFO] [stdout]   |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn better_chars(&self) -> BetterChars {
[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] 14 |     fn better_chars(&self) -> BetterChars<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/lib.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn better_chars(&self) -> BetterChars;
[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] 6 |     fn better_chars(&self) -> BetterChars<'_>;
[INFO] [stdout]   |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn better_chars(&self) -> BetterChars {
[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] 14 |     fn better_chars(&self) -> BetterChars<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "906e6772b15cceb4f94ea40636029a59bddb816350c64e4a425d1863a780b8e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "906e6772b15cceb4f94ea40636029a59bddb816350c64e4a425d1863a780b8e6", kill_on_drop: false }`
[INFO] [stdout] 906e6772b15cceb4f94ea40636029a59bddb816350c64e4a425d1863a780b8e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7f90db9f11f4dd67a25400290c3cbf974406fefe88cc402336ad98d9d4e0f3c6
[INFO] running `Command { std: "docker" "start" "-a" "7f90db9f11f4dd67a25400290c3cbf974406fefe88cc402336ad98d9d4e0f3c6", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]  --> src/lib.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn better_chars(&self) -> BetterChars;
[INFO] [stderr]   |                     ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]   |                     |
[INFO] [stderr]   |                     the lifetime is elided 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] 6 |     fn better_chars(&self) -> BetterChars<'_>;
[INFO] [stderr]   |                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn better_chars(&self) -> BetterChars {
[INFO] [stderr]    |                     ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn better_chars(&self) -> BetterChars<'_> {
[INFO] [stderr]    |                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `betterchars` (lib) generated 2 warnings (run `cargo fix --lib -p betterchars` to apply 2 suggestions)
[INFO] [stderr] warning: `betterchars` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/betterchars-17f6f609509364af)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::eat_nothing ... ok
[INFO] [stdout] test tests::eat_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    Doc-tests betterchars
[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" "7f90db9f11f4dd67a25400290c3cbf974406fefe88cc402336ad98d9d4e0f3c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f90db9f11f4dd67a25400290c3cbf974406fefe88cc402336ad98d9d4e0f3c6", kill_on_drop: false }`
[INFO] [stdout] 7f90db9f11f4dd67a25400290c3cbf974406fefe88cc402336ad98d9d4e0f3c6