[INFO] fetching crate chrono_elapsed 1.0.12...
[INFO] testing chrono_elapsed-1.0.12 against 1.55.0 for beta-1.56-1
[INFO] extracting crate chrono_elapsed 1.0.12 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate chrono_elapsed 1.0.12 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chrono_elapsed 1.0.12
[INFO] finished tweaking crates.io crate chrono_elapsed 1.0.12
[INFO] tweaked toml for crates.io crate chrono_elapsed 1.0.12 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64bd337b33f7bf9fd9fc8033dea32ed8be2c94de6aa38f609f077335df475624
[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" "64bd337b33f7bf9fd9fc8033dea32ed8be2c94de6aa38f609f077335df475624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64bd337b33f7bf9fd9fc8033dea32ed8be2c94de6aa38f609f077335df475624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64bd337b33f7bf9fd9fc8033dea32ed8be2c94de6aa38f609f077335df475624", kill_on_drop: false }`
[INFO] [stdout] 64bd337b33f7bf9fd9fc8033dea32ed8be2c94de6aa38f609f077335df475624
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e2e5ed92d1d2a402a39804c4768b3f20feb9c9669fbf0b58760e68de9a1cc4fe
[INFO] running `Command { std: "docker" "start" "-a" "e2e5ed92d1d2a402a39804c4768b3f20feb9c9669fbf0b58760e68de9a1cc4fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmath v0.2.1
[INFO] [stderr]    Compiling chrono_elapsed v1.0.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tf`
[INFO] [stdout]    --> src/lib.rs:374:35
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn through_til(&mut self, tf: &TimeFrame) -> &mut Self {
[INFO] [stdout]     |                                   ^^ help: if this is intentional, prefix it with an underscore: `_tf`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "e2e5ed92d1d2a402a39804c4768b3f20feb9c9669fbf0b58760e68de9a1cc4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2e5ed92d1d2a402a39804c4768b3f20feb9c9669fbf0b58760e68de9a1cc4fe", kill_on_drop: false }`
[INFO] [stdout] e2e5ed92d1d2a402a39804c4768b3f20feb9c9669fbf0b58760e68de9a1cc4fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f3cc4e824c616c71cfa6ff682e531c996bbdec9f7d0394a2225922a3b2d58601
[INFO] running `Command { std: "docker" "start" "-a" "f3cc4e824c616c71cfa6ff682e531c996bbdec9f7d0394a2225922a3b2d58601", kill_on_drop: false }`
[INFO] [stderr]    Compiling chrono_elapsed v1.0.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tf`
[INFO] [stdout]    --> src/lib.rs:374:35
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn through_til(&mut self, tf: &TimeFrame) -> &mut Self {
[INFO] [stdout]     |                                   ^^ help: if this is intentional, prefix it with an underscore: `_tf`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tf`
[INFO] [stdout]    --> src/lib.rs:374:35
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn through_til(&mut self, tf: &TimeFrame) -> &mut Self {
[INFO] [stdout]     |                                   ^^ help: if this is intentional, prefix it with an underscore: `_tf`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "f3cc4e824c616c71cfa6ff682e531c996bbdec9f7d0394a2225922a3b2d58601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3cc4e824c616c71cfa6ff682e531c996bbdec9f7d0394a2225922a3b2d58601", kill_on_drop: false }`
[INFO] [stdout] f3cc4e824c616c71cfa6ff682e531c996bbdec9f7d0394a2225922a3b2d58601
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c5eae0b428ecdb29f889cc3f45089f92f6ce7ca0123215b263e250e2b7bb050
[INFO] running `Command { std: "docker" "start" "-a" "7c5eae0b428ecdb29f889cc3f45089f92f6ce7ca0123215b263e250e2b7bb050", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `tf`
[INFO] [stderr]    --> src/lib.rs:374:35
[INFO] [stderr]     |
[INFO] [stderr] 374 |     pub fn through_til(&mut self, tf: &TimeFrame) -> &mut Self {
[INFO] [stderr]     |                                   ^^ help: if this is intentional, prefix it with an underscore: `_tf`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `chrono_elapsed` (lib) generated 1 warning
[INFO] [stderr] warning: `chrono_elapsed` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chrono_elapsed-b279a769ca57f3d2)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::print_elapsed_since_recent ... ok
[INFO] [stdout] test tests::print_elapsed_since_birth ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chrono_elapsed
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Elapsed::years_and (line 283) ... FAILED
[INFO] [stdout] test src/lib.rs - Elapsed::through_til (line 365) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Elapsed::years_and (line 283) stdout ----
[INFO] [stdout] error[E0424]: expected value, found module `self`
[INFO] [stdout]  --> src/lib.rs:284:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_283_0() {
[INFO] [stdout]   |                                         ------------------------------ this function can't have a `self` parameter
[INFO] [stdout] 3 | let date = self.years_and().months_and().weeks();
[INFO] [stdout]   |            ^^^^ `self` value is a keyword only available in methods with a `self` parameter
[INFO] [stdout] 
[INFO] [stdout] error[E0424]: expected value, found module `self`
[INFO] [stdout]  --> src/lib.rs:286:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_283_0() {
[INFO] [stdout]   |                                         ------------------------------ this function can't have a `self` parameter
[INFO] [stdout] ...
[INFO] [stdout] 5 | let silly_date = self.years_and().seconds();
[INFO] [stdout]   |                  ^^^^ `self` value is a keyword only available in methods with a `self` parameter
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0424`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Elapsed::through_til (line 365) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `TimeFrame`
[INFO] [stdout]  --> src/lib.rs:366:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | let date = self.seconds_and().through_til(&TimeFrame::Months);
[INFO] [stdout]   |                                            ^^^^^^^^^ use of undeclared type `TimeFrame`
[INFO] [stdout] 
[INFO] [stdout] error[E0424]: expected value, found module `self`
[INFO] [stdout]  --> src/lib.rs:366:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_365_0() {
[INFO] [stdout]   |                                         ------------------------------ this function can't have a `self` parameter
[INFO] [stdout] 3 | let date = self.seconds_and().through_til(&TimeFrame::Months);
[INFO] [stdout]   |            ^^^^ `self` value is a keyword only available in methods with a `self` parameter
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0424, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0424`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Elapsed::through_til (line 365)
[INFO] [stdout]     src/lib.rs - Elapsed::years_and (line 283)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "7c5eae0b428ecdb29f889cc3f45089f92f6ce7ca0123215b263e250e2b7bb050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5eae0b428ecdb29f889cc3f45089f92f6ce7ca0123215b263e250e2b7bb050", kill_on_drop: false }`
[INFO] [stdout] 7c5eae0b428ecdb29f889cc3f45089f92f6ce7ca0123215b263e250e2b7bb050