[INFO] fetching crate flexstr 0.9.1...
[INFO] testing flexstr-0.9.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate flexstr 0.9.1 into /workspace/builds/worker-61/source
[INFO] validating manifest of crates.io crate flexstr 0.9.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flexstr 0.9.1
[INFO] finished tweaking crates.io crate flexstr 0.9.1
[INFO] tweaked toml for crates.io crate flexstr 0.9.1 written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ufmt v0.1.0
[INFO] [stderr]   Downloaded ufmt-macros v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5df82409b157d52a6c0d702979e9132a82bf3d5fad259aff242454dd7f70cf3
[INFO] running `Command { std: "docker" "start" "-a" "b5df82409b157d52a6c0d702979e9132a82bf3d5fad259aff242454dd7f70cf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5df82409b157d52a6c0d702979e9132a82bf3d5fad259aff242454dd7f70cf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5df82409b157d52a6c0d702979e9132a82bf3d5fad259aff242454dd7f70cf3", kill_on_drop: false }`
[INFO] [stdout] b5df82409b157d52a6c0d702979e9132a82bf3d5fad259aff242454dd7f70cf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5f1dbb26d4ef15eafcfe7afb9011589ae9743f997831f8f68be17a88fbeaae8
[INFO] running `Command { std: "docker" "start" "-a" "d5f1dbb26d4ef15eafcfe7afb9011589ae9743f997831f8f68be17a88fbeaae8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling flexstr v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "d5f1dbb26d4ef15eafcfe7afb9011589ae9743f997831f8f68be17a88fbeaae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5f1dbb26d4ef15eafcfe7afb9011589ae9743f997831f8f68be17a88fbeaae8", kill_on_drop: false }`
[INFO] [stdout] d5f1dbb26d4ef15eafcfe7afb9011589ae9743f997831f8f68be17a88fbeaae8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe3f346c7df08b8c176ef62b96b27bb02b2e37cb4ca0d20d46a952a401d6dbb7
[INFO] running `Command { std: "docker" "start" "-a" "fe3f346c7df08b8c176ef62b96b27bb02b2e37cb4ca0d20d46a952a401d6dbb7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling flexstr v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 19.15s
[INFO] running `Command { std: "docker" "inspect" "fe3f346c7df08b8c176ef62b96b27bb02b2e37cb4ca0d20d46a952a401d6dbb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe3f346c7df08b8c176ef62b96b27bb02b2e37cb4ca0d20d46a952a401d6dbb7", kill_on_drop: false }`
[INFO] [stdout] fe3f346c7df08b8c176ef62b96b27bb02b2e37cb4ca0d20d46a952a401d6dbb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2e99e55290631b7ac7f1b8d301c8318bf5e20d22bc947ee5edda727f679ce363
[INFO] running `Command { std: "docker" "start" "-a" "2e99e55290631b7ac7f1b8d301c8318bf5e20d22bc947ee5edda727f679ce363", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flexstr-bf00ce4602f820cd)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test builder::tests::flex_str_builder_promotion ... ok
[INFO] [stdout] test inline::tests::bad_concat ... ok
[INFO] [stdout] test builder::tests::string_buffer ... ok
[INFO] [stdout] test inline::tests::empty ... ok
[INFO] [stdout] test inline::tests::bad_init ... ok
[INFO] [stdout] test inline::tests::good_concat ... ok
[INFO] [stdout] test inline::tests::good_init ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flexstr
[INFO] [stderr] error: couldn't read /opt/rustwide/workdir/src/../../README.md: No such file or directory (os error 2)
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:124:24
[INFO] [stderr]     |
[INFO] [stderr] 124 |     external_doc_test!(include_str!("../../README.md"));
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "2e99e55290631b7ac7f1b8d301c8318bf5e20d22bc947ee5edda727f679ce363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e99e55290631b7ac7f1b8d301c8318bf5e20d22bc947ee5edda727f679ce363", kill_on_drop: false }`
[INFO] [stdout] 2e99e55290631b7ac7f1b8d301c8318bf5e20d22bc947ee5edda727f679ce363