[INFO] fetching crate rtt-logger 0.2.1...
[INFO] testing rtt-logger-0.2.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate rtt-logger 0.2.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate rtt-logger 0.2.1
[INFO] finished tweaking crates.io crate rtt-logger 0.2.1
[INFO] tweaked toml for crates.io crate rtt-logger 0.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rtt-logger 0.2.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding rtt-target v0.3.1 (available: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rtt-target v0.3.1
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a84404f9c65e138f4d070b1b53fd56a63d2bba986999c3cb19bd492bebaa447a
[INFO] running `Command { std: "docker" "start" "-a" "a84404f9c65e138f4d070b1b53fd56a63d2bba986999c3cb19bd492bebaa447a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a84404f9c65e138f4d070b1b53fd56a63d2bba986999c3cb19bd492bebaa447a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a84404f9c65e138f4d070b1b53fd56a63d2bba986999c3cb19bd492bebaa447a", kill_on_drop: false }`
[INFO] [stdout] a84404f9c65e138f4d070b1b53fd56a63d2bba986999c3cb19bd492bebaa447a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b96671aa26ca2d751ee3072c44b13e5b4ab26b43f0b964784911eb91276544c1
[INFO] running `Command { std: "docker" "start" "-a" "b96671aa26ca2d751ee3072c44b13e5b4ab26b43f0b964784911eb91276544c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling rtt-target v0.3.1
[INFO] [stderr]    Compiling rtt-logger v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "b96671aa26ca2d751ee3072c44b13e5b4ab26b43f0b964784911eb91276544c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b96671aa26ca2d751ee3072c44b13e5b4ab26b43f0b964784911eb91276544c1", kill_on_drop: false }`
[INFO] [stdout] b96671aa26ca2d751ee3072c44b13e5b4ab26b43f0b964784911eb91276544c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f9723018401c88459ed89b03e751b407f52622343d6948ee2d04d5b34bd72e7
[INFO] running `Command { std: "docker" "start" "-a" "1f9723018401c88459ed89b03e751b407f52622343d6948ee2d04d5b34bd72e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rtt-logger v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "1f9723018401c88459ed89b03e751b407f52622343d6948ee2d04d5b34bd72e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f9723018401c88459ed89b03e751b407f52622343d6948ee2d04d5b34bd72e7", kill_on_drop: false }`
[INFO] [stdout] 1f9723018401c88459ed89b03e751b407f52622343d6948ee2d04d5b34bd72e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aff094f844ff1c443dcecee3745816cd60559a62227352860446c6ad87e87438
[INFO] running `Command { std: "docker" "start" "-a" "aff094f844ff1c443dcecee3745816cd60559a62227352860446c6ad87e87438", 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/rtt_logger-de62e0e9c34cff39)
[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] [stderr]    Doc-tests rtt_logger
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 3) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 3) stdout ----
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcGHfCLA/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{librtt_logger-cb616c75b58f95bb,librtt_target-1c2dc07cc64b8286,libcortex_m-a6ab47196d603eaf,libembedded_hal-9be91e8367b2d5c9,libvoid-9163cd71c286a90e,libnb-4261131878fadeb2,libnb-86f78d16dd59c3ce,libvolatile_register-ec50e058c7292123,libvcell-d64dabacbc42077e,libbare_metal-f581e6a1989c1687,libufmt_write-32cc3a1b093b461b,liblog-45f74354a8b36c20}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcGHfCLA/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/tmp/rustdoctestFUp9K6/rust_out" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: undefined symbol: __primask_r
[INFO] [stdout]           >>> referenced by call_asm.rs:19 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cortex-m-0.7.7/src/call_asm.rs:19)
[INFO] [stdout]           >>>               rtt_target-1c2dc07cc64b8286.rtt_target.aa35aa187fbe2377-cgu.0.rcgu.o:(cortex_m::register::primask::read::h63d99fc2a3357365) in archive /opt/rustwide/target/debug/deps/librtt_target-1c2dc07cc64b8286.rlib
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: __cpsie
[INFO] [stdout]           >>> referenced by call_asm.rs:19 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cortex-m-0.7.7/src/call_asm.rs:19)
[INFO] [stdout]           >>>               rtt_target-1c2dc07cc64b8286.rtt_target.aa35aa187fbe2377-cgu.0.rcgu.o:(cortex_m::interrupt::enable::h7c73ac11e32136cd) in archive /opt/rustwide/target/debug/deps/librtt_target-1c2dc07cc64b8286.rlib
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: __cpsid
[INFO] [stdout]           >>> referenced by call_asm.rs:19 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cortex-m-0.7.7/src/call_asm.rs:19)
[INFO] [stdout]           >>>               rtt_target-1c2dc07cc64b8286.rtt_target.aa35aa187fbe2377-cgu.0.rcgu.o:(cortex_m::interrupt::disable::h1aaac0be491dabe7) in archive /opt/rustwide/target/debug/deps/librtt_target-1c2dc07cc64b8286.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 3)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "aff094f844ff1c443dcecee3745816cd60559a62227352860446c6ad87e87438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aff094f844ff1c443dcecee3745816cd60559a62227352860446c6ad87e87438", kill_on_drop: false }`
[INFO] [stdout] aff094f844ff1c443dcecee3745816cd60559a62227352860446c6ad87e87438