[INFO] crate ufmt 0.1.0 is already in cache
[INFO] testing ufmt-0.1.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate ufmt 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ufmt 0.1.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ufmt 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ufmt 0.1.0
[INFO] tweaked toml for crates.io crate ufmt 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bbfdd0e54cb577a450e42944c9da786ed5a2dc59cea7bbd94b0f35132a3e755
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4bbfdd0e54cb577a450e42944c9da786ed5a2dc59cea7bbd94b0f35132a3e755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bbfdd0e54cb577a450e42944c9da786ed5a2dc59cea7bbd94b0f35132a3e755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bbfdd0e54cb577a450e42944c9da786ed5a2dc59cea7bbd94b0f35132a3e755", kill_on_drop: false }`
[INFO] [stdout] 4bbfdd0e54cb577a450e42944c9da786ed5a2dc59cea7bbd94b0f35132a3e755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa1233e3837460ef01bfab8cfefc621210b50bf32512cfc239f843d90ca3b45a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fa1233e3837460ef01bfab8cfefc621210b50bf32512cfc239f843d90ca3b45a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling ufmt-macros v0.1.1
[INFO] [stderr]    Compiling ufmt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.29s
[INFO] running `Command { std: "docker" "inspect" "fa1233e3837460ef01bfab8cfefc621210b50bf32512cfc239f843d90ca3b45a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1233e3837460ef01bfab8cfefc621210b50bf32512cfc239f843d90ca3b45a", kill_on_drop: false }`
[INFO] [stdout] fa1233e3837460ef01bfab8cfefc621210b50bf32512cfc239f843d90ca3b45a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 871cbf0b7663b68c8190e8caa6ecad0239105285adea5f953ab86d4a5e9eb777
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "871cbf0b7663b68c8190e8caa6ecad0239105285adea5f953ab86d4a5e9eb777", kill_on_drop: false }`
[INFO] [stderr]    Compiling ufmt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "871cbf0b7663b68c8190e8caa6ecad0239105285adea5f953ab86d4a5e9eb777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "871cbf0b7663b68c8190e8caa6ecad0239105285adea5f953ab86d4a5e9eb777", kill_on_drop: false }`
[INFO] [stdout] 871cbf0b7663b68c8190e8caa6ecad0239105285adea5f953ab86d4a5e9eb777
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d15e2561756941fe7fa531b87179d7bbcc57a901a660eee3351e343f1bcb4214
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d15e2561756941fe7fa531b87179d7bbcc57a901a660eee3351e343f1bcb4214", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ufmt-98d2022ceb547673
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ufmt
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 135) ... ignored
[INFO] [stdout] test src/lib.rs - (line 43) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 158) ... ok
[INFO] [stdout] test src/lib.rs - (line 60) ... ok
[INFO] [stdout] test src/lib.rs - (line 86) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 43) stdout ----
[INFO] [stdout] error[E0599]: no method named `do_as_formatter` found for struct `std::string::String` in the current scope
[INFO] [stdout]    --> src/lib.rs:51:1
[INFO] [stdout]     |
[INFO] [stdout] 11  |   uwrite!(s, "{:?}", pair).unwrap();
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ method not found in `std::string::String`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `do_as_formatter` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `std::string::String: ufmt::uWrite`
[INFO] [stdout]             which is required by `std::string::String: ufmt::UnstableDoAsFormatter`
[INFO] [stdout]             `str: ufmt::uWrite`
[INFO] [stdout]             which is required by `str: ufmt::UnstableDoAsFormatter`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 43)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "d15e2561756941fe7fa531b87179d7bbcc57a901a660eee3351e343f1bcb4214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d15e2561756941fe7fa531b87179d7bbcc57a901a660eee3351e343f1bcb4214", kill_on_drop: false }`
[INFO] [stdout] d15e2561756941fe7fa531b87179d7bbcc57a901a660eee3351e343f1bcb4214