[INFO] fetching crate fibril_core 0.0.7...
[INFO] testing fibril_core-0.0.7 against 1.90.0 for beta-1.91-3
[INFO] extracting crate fibril_core 0.0.7 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate fibril_core 0.0.7
[INFO] finished tweaking crates.io crate fibril_core 0.0.7
[INFO] tweaked toml for crates.io crate fibril_core 0.0.7 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fibril_core 0.0.7 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 355ce904f833f91b7f23412c1abaf26fc7e7209a59bda1387db618286d77ba6b
[INFO] running `Command { std: "docker" "start" "-a" "355ce904f833f91b7f23412c1abaf26fc7e7209a59bda1387db618286d77ba6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "355ce904f833f91b7f23412c1abaf26fc7e7209a59bda1387db618286d77ba6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "355ce904f833f91b7f23412c1abaf26fc7e7209a59bda1387db618286d77ba6b", kill_on_drop: false }`
[INFO] [stdout] 355ce904f833f91b7f23412c1abaf26fc7e7209a59bda1387db618286d77ba6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c4bee05ebc308a26cac9cafda7d569ebbab418d59095f58152c99e8f68dbcf8
[INFO] running `Command { std: "docker" "start" "-a" "1c4bee05ebc308a26cac9cafda7d569ebbab418d59095f58152c99e8f68dbcf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling fibril_core v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `CHANNEL_NIGHTLY`
[INFO] [stdout]   --> src/lib.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![cfg_attr(all(doc, CHANNEL_NIGHTLY), feature(doc_auto_cfg))]
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(CHANNEL_NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(CHANNEL_NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "1c4bee05ebc308a26cac9cafda7d569ebbab418d59095f58152c99e8f68dbcf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4bee05ebc308a26cac9cafda7d569ebbab418d59095f58152c99e8f68dbcf8", kill_on_drop: false }`
[INFO] [stdout] 1c4bee05ebc308a26cac9cafda7d569ebbab418d59095f58152c99e8f68dbcf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9620ba9e92d914c0b8c70894f6056b25928f38dc18214d5aac20d620f3fa48a
[INFO] running `Command { std: "docker" "start" "-a" "a9620ba9e92d914c0b8c70894f6056b25928f38dc18214d5aac20d620f3fa48a", kill_on_drop: false }`
[INFO] [stdout] warning: unexpected `cfg` condition name: `CHANNEL_NIGHTLY`
[INFO] [stdout]   --> src/lib.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![cfg_attr(all(doc, CHANNEL_NIGHTLY), feature(doc_auto_cfg))]
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(CHANNEL_NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(CHANNEL_NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fibril_core v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `CHANNEL_NIGHTLY`
[INFO] [stdout]   --> src/lib.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![cfg_attr(all(doc, CHANNEL_NIGHTLY), feature(doc_auto_cfg))]
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(CHANNEL_NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(CHANNEL_NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "a9620ba9e92d914c0b8c70894f6056b25928f38dc18214d5aac20d620f3fa48a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9620ba9e92d914c0b8c70894f6056b25928f38dc18214d5aac20d620f3fa48a", kill_on_drop: false }`
[INFO] [stdout] a9620ba9e92d914c0b8c70894f6056b25928f38dc18214d5aac20d620f3fa48a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3bd7722db87b97a412fb0177be496e7a629d3cb6a7c89c8603854c5fcd98cfae
[INFO] running `Command { std: "docker" "start" "-a" "3bd7722db87b97a412fb0177be496e7a629d3cb6a7c89c8603854c5fcd98cfae", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `CHANNEL_NIGHTLY`
[INFO] [stderr]   --> src/lib.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![cfg_attr(all(doc, CHANNEL_NIGHTLY), feature(doc_auto_cfg))]
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(CHANNEL_NIGHTLY)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(CHANNEL_NIGHTLY)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fibril_core` (lib) generated 1 warning
[INFO] [stderr] warning: `fibril_core` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fibril_core-5053317ab9fd81cd)
[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 fibril_core
[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" "3bd7722db87b97a412fb0177be496e7a629d3cb6a7c89c8603854c5fcd98cfae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bd7722db87b97a412fb0177be496e7a629d3cb6a7c89c8603854c5fcd98cfae", kill_on_drop: false }`
[INFO] [stdout] 3bd7722db87b97a412fb0177be496e7a629d3cb6a7c89c8603854c5fcd98cfae