[INFO] fetching crate fstr 0.2.17...
[INFO] testing fstr-0.2.17 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate fstr 0.2.17 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate fstr 0.2.17
[INFO] finished tweaking crates.io crate fstr 0.2.17
[INFO] tweaked toml for crates.io crate fstr 0.2.17 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fstr 0.2.17 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fstr 0.2.17 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8b44b05266b78e921dceb820c755c402887416d15d7c600126d00d754f2258d
[INFO] running `Command { std: "docker" "start" "-a" "e8b44b05266b78e921dceb820c755c402887416d15d7c600126d00d754f2258d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8b44b05266b78e921dceb820c755c402887416d15d7c600126d00d754f2258d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8b44b05266b78e921dceb820c755c402887416d15d7c600126d00d754f2258d", kill_on_drop: false }`
[INFO] [stdout] e8b44b05266b78e921dceb820c755c402887416d15d7c600126d00d754f2258d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fa5b93fae6a3c3620ffb88e144813a6d02904ff0ba02a8c5eb02c5d514f9b02
[INFO] running `Command { std: "docker" "start" "-a" "2fa5b93fae6a3c3620ffb88e144813a6d02904ff0ba02a8c5eb02c5d514f9b02", kill_on_drop: false }`
[INFO] [stderr]    Compiling fstr v0.2.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "2fa5b93fae6a3c3620ffb88e144813a6d02904ff0ba02a8c5eb02c5d514f9b02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa5b93fae6a3c3620ffb88e144813a6d02904ff0ba02a8c5eb02c5d514f9b02", kill_on_drop: false }`
[INFO] [stdout] 2fa5b93fae6a3c3620ffb88e144813a6d02904ff0ba02a8c5eb02c5d514f9b02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f12c2602b2f9ea05bd87b82e222d125a9379414b178ab3f0b1e4d05357ea3ccf
[INFO] running `Command { std: "docker" "start" "-a" "f12c2602b2f9ea05bd87b82e222d125a9379414b178ab3f0b1e4d05357ea3ccf", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_test v1.0.177
[INFO] [stderr]    Compiling fstr v0.2.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `Command { std: "docker" "inspect" "f12c2602b2f9ea05bd87b82e222d125a9379414b178ab3f0b1e4d05357ea3ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f12c2602b2f9ea05bd87b82e222d125a9379414b178ab3f0b1e4d05357ea3ccf", kill_on_drop: false }`
[INFO] [stdout] f12c2602b2f9ea05bd87b82e222d125a9379414b178ab3f0b1e4d05357ea3ccf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a1b487caaee14be0a19d5977f367288044d426201cbc4cf4631e98524d7eedfd
[INFO] running `Command { std: "docker" "start" "-a" "a1b487caaee14be0a19d5977f367288044d426201cbc4cf4631e98524d7eedfd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fstr-506913664b6703a3)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::from_fmt ... ok
[INFO] [stdout] test tests::hash_borrow ... ok
[INFO] [stdout] test tests::try_from_array ... ok
[INFO] [stdout] test tests::write_str ... ok
[INFO] [stdout] test tests::from_str_lossy_edge ... ok
[INFO] [stdout] test tests::display_fmt ... ok
[INFO] [stdout] test tests::eq ... ok
[INFO] [stdout] test tests::from_str ... ok
[INFO] [stdout] test tests::try_from_slice ... ok
[INFO] [stdout] test tests::writer_at_index_beyond_end - should panic ... ok
[INFO] [stdout] test tests::writer_at_index_middle_of_a_char - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fstr
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/lib.rs - FStr<N>::slice_to_terminator (line 294) ... ok
[INFO] [stdout] test src/lib.rs - FStr<N>::from_str_lossy (line 215) ... ok
[INFO] [stdout] test src/lib.rs - FStr<N>::writer_at (line 332) ... ok
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] test src/lib.rs - FStr<N>::default (line 464) ... ok
[INFO] [stdout] test src/lib.rs - FStr<N>::from_str_unwrap (line 164) ... ok
[INFO] [stdout] test src/lib.rs - FStr<N>::from_fmt (line 381) ... ok
[INFO] [stdout] test src/lib.rs - Cursor (line 604) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/lib.rs - FStr<N>::from_ascii_filler (line 266) ... ok
[INFO] [stdout] test src/lib.rs - FStr<N>::from_inner (line 137) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 44) - compile fail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.91s; merged doctests compilation took 0.76s
[INFO] running `Command { std: "docker" "inspect" "a1b487caaee14be0a19d5977f367288044d426201cbc4cf4631e98524d7eedfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1b487caaee14be0a19d5977f367288044d426201cbc4cf4631e98524d7eedfd", kill_on_drop: false }`
[INFO] [stdout] a1b487caaee14be0a19d5977f367288044d426201cbc4cf4631e98524d7eedfd