[INFO] fetching crate lsm303c 0.2.0...
[INFO] testing lsm303c-0.2.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate lsm303c 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate lsm303c 0.2.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lsm303c 0.2.0
[INFO] finished tweaking crates.io crate lsm303c 0.2.0
[INFO] tweaked toml for crates.io crate lsm303c 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08ae15fd5cf8a5d9f44672a69606d7cf911e5e7117dcc43d8acd83c9706c1ab2
[INFO] running `Command { std: "docker" "start" "-a" "08ae15fd5cf8a5d9f44672a69606d7cf911e5e7117dcc43d8acd83c9706c1ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08ae15fd5cf8a5d9f44672a69606d7cf911e5e7117dcc43d8acd83c9706c1ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08ae15fd5cf8a5d9f44672a69606d7cf911e5e7117dcc43d8acd83c9706c1ab2", kill_on_drop: false }`
[INFO] [stdout] 08ae15fd5cf8a5d9f44672a69606d7cf911e5e7117dcc43d8acd83c9706c1ab2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce01ecd05b6f3bb6b7066ccea72dca15767a6a1e32b12c6715e039128794d0d1
[INFO] running `Command { std: "docker" "start" "-a" "ce01ecd05b6f3bb6b7066ccea72dca15767a6a1e32b12c6715e039128794d0d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.6
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling lsm303c v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `Command { std: "docker" "inspect" "ce01ecd05b6f3bb6b7066ccea72dca15767a6a1e32b12c6715e039128794d0d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce01ecd05b6f3bb6b7066ccea72dca15767a6a1e32b12c6715e039128794d0d1", kill_on_drop: false }`
[INFO] [stdout] ce01ecd05b6f3bb6b7066ccea72dca15767a6a1e32b12c6715e039128794d0d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a587fc19026cec8d47ed11e6180302cb7f2c29222c1170c070da5422b3b22bf8
[INFO] running `Command { std: "docker" "start" "-a" "a587fc19026cec8d47ed11e6180302cb7f2c29222c1170c070da5422b3b22bf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling lsm303c v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "a587fc19026cec8d47ed11e6180302cb7f2c29222c1170c070da5422b3b22bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a587fc19026cec8d47ed11e6180302cb7f2c29222c1170c070da5422b3b22bf8", kill_on_drop: false }`
[INFO] [stdout] a587fc19026cec8d47ed11e6180302cb7f2c29222c1170c070da5422b3b22bf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cbb4b41bf2470edb669f880976a1d5bc61cfd9a63aed79a9ca56f28f673cdd92
[INFO] running `Command { std: "docker" "start" "-a" "cbb4b41bf2470edb669f880976a1d5bc61cfd9a63aed79a9ca56f28f673cdd92", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lsm303c-09925570ee839ae2)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lsm303c
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 10) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 10) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Lsm303c`
[INFO] [stdout]  --> src/lib.rs:12:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | let mut lsm = Lsm303c::default(i2c)?;
[INFO] [stdout]   |               ^^^^^^^ use of undeclared type `Lsm303c`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LsmConfig`
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     LsmConfig::new(i2c,
[INFO] [stdout]    |     ^^^^^^^^^ use of undeclared type `LsmConfig`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LsmConfig`
[INFO] [stdout]   --> src/lib.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 11 |                    LsmConfig::new().mag_scale(conf::MagScale::_16_Ga))?;
[INFO] [stdout]    |                    ^^^^^^^^^ use of undeclared type `LsmConfig`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `conf`
[INFO] [stdout]   --> src/lib.rs:19:47
[INFO] [stdout]    |
[INFO] [stdout] 11 |                    LsmConfig::new().mag_scale(conf::MagScale::_16_Ga))?;
[INFO] [stdout]    |                                               ^^^^ use of undeclared crate or module `conf`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `i2c` in this scope
[INFO] [stdout]  --> src/lib.rs:12:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | let mut lsm = Lsm303c::default(i2c)?;
[INFO] [stdout]   |                                ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `i2c` in this scope
[INFO] [stdout]   --> src/lib.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |     LsmConfig::new(i2c,
[INFO] [stdout]    |                    ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:12:36
[INFO] [stdout]     |
[INFO] [stdout] 3   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_10_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 4   | | let mut lsm = Lsm303c::default(i2c)?;
[INFO] [stdout]     | |                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 5   | | // to get all supported measurements:
[INFO] [stdout] 6   | | let all = lsm.all()?;
[INFO] [stdout] ...   |
[INFO] [stdout] 11  | |                    LsmConfig::new().mag_scale(conf::MagScale::_16_Ga))?;
[INFO] [stdout] 12  | | } _doctest_main_src_lib_rs_10_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:14:20
[INFO] [stdout]     |
[INFO] [stdout] 3   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_10_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 4   | | let mut lsm = Lsm303c::default(i2c)?;
[INFO] [stdout] 5   | | // to get all supported measurements:
[INFO] [stdout] 6   | | let all = lsm.all()?;
[INFO] [stdout]     | |                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...   |
[INFO] [stdout] 11  | |                    LsmConfig::new().mag_scale(conf::MagScale::_16_Ga))?;
[INFO] [stdout] 12  | | } _doctest_main_src_lib_rs_10_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:19:71
[INFO] [stdout]     |
[INFO] [stdout] 3   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_10_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 4   | | let mut lsm = Lsm303c::default(i2c)?;
[INFO] [stdout] 5   | | // to get all supported measurements:
[INFO] [stdout] 6   | | let all = lsm.all()?;
[INFO] [stdout] ...   |
[INFO] [stdout] 11  | |                    LsmConfig::new().mag_scale(conf::MagScale::_16_Ga))?;
[INFO] [stdout]     | |                                                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 12  | | } _doctest_main_src_lib_rs_10_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 10)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "cbb4b41bf2470edb669f880976a1d5bc61cfd9a63aed79a9ca56f28f673cdd92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb4b41bf2470edb669f880976a1d5bc61cfd9a63aed79a9ca56f28f673cdd92", kill_on_drop: false }`
[INFO] [stdout] cbb4b41bf2470edb669f880976a1d5bc61cfd9a63aed79a9ca56f28f673cdd92
