[INFO] crate taildir 0.2.0 is already in cache
[INFO] testing taildir-0.2.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate taildir 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate taildir 0.2.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate taildir 0.2.0
[INFO] finished tweaking crates.io crate taildir 0.2.0
[INFO] tweaked toml for crates.io crate taildir 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 1f8eb8fcb9421d8eb22280d9936ec0554e6f1e34b67a60e3c9b40c50fa11c873
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "1f8eb8fcb9421d8eb22280d9936ec0554e6f1e34b67a60e3c9b40c50fa11c873"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling notify v4.0.15
[INFO] [stderr]    Compiling taildir v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:16:21
[INFO] [stderr]    |
[INFO] [stderr] 16 | type BoxError = Box<Error>;
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:17:22
[INFO] [stderr]    |
[INFO] [stderr] 17 | type FileFilter = Rc<Fn(&str) -> bool>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 | type LineFilter = Rc<Fn(&str) -> bool>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:91:83
[INFO] [stderr]    |
[INFO] [stderr] 91 | pub fn watch_dir<F: ?Sized>(option: &WatchOption, callback: &F) -> Result<(), Box<Error>>
[INFO] [stderr]    |                                                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:130:59
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:130:76
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `"docker" "inspect" "1f8eb8fcb9421d8eb22280d9936ec0554e6f1e34b67a60e3c9b40c50fa11c873"`
[INFO] running `"docker" "rm" "-f" "1f8eb8fcb9421d8eb22280d9936ec0554e6f1e34b67a60e3c9b40c50fa11c873"`
[INFO] [stdout] 1f8eb8fcb9421d8eb22280d9936ec0554e6f1e34b67a60e3c9b40c50fa11c873
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 65b312399feea30142ce1798b8eed33f8d2108d9556e268daf4da3a9b6814e96
[INFO] running `"docker" "start" "-a" "65b312399feea30142ce1798b8eed33f8d2108d9556e268daf4da3a9b6814e96"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling taildir v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:16:21
[INFO] [stderr]    |
[INFO] [stderr] 16 | type BoxError = Box<Error>;
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:17:22
[INFO] [stderr]    |
[INFO] [stderr] 17 | type FileFilter = Rc<Fn(&str) -> bool>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 | type LineFilter = Rc<Fn(&str) -> bool>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:91:83
[INFO] [stderr]    |
[INFO] [stderr] 91 | pub fn watch_dir<F: ?Sized>(option: &WatchOption, callback: &F) -> Result<(), Box<Error>>
[INFO] [stderr]    |                                                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:130:59
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:130:76
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:16:21
[INFO] [stderr]    |
[INFO] [stderr] 16 | type BoxError = Box<Error>;
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:17:22
[INFO] [stderr]    |
[INFO] [stderr] 17 | type FileFilter = Rc<Fn(&str) -> bool>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 | type LineFilter = Rc<Fn(&str) -> bool>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:91:83
[INFO] [stderr]    |
[INFO] [stderr] 91 | pub fn watch_dir<F: ?Sized>(option: &WatchOption, callback: &F) -> Result<(), Box<Error>>
[INFO] [stderr]    |                                                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:130:59
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:130:76
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "65b312399feea30142ce1798b8eed33f8d2108d9556e268daf4da3a9b6814e96"`
[INFO] running `"docker" "rm" "-f" "65b312399feea30142ce1798b8eed33f8d2108d9556e268daf4da3a9b6814e96"`
[INFO] [stdout] 65b312399feea30142ce1798b8eed33f8d2108d9556e268daf4da3a9b6814e96
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6173772f559196968cb52ab31c919e2a4e75dcb5df675af73a0cd5c10e00aec5
[INFO] running `"docker" "start" "-a" "6173772f559196968cb52ab31c919e2a4e75dcb5df675af73a0cd5c10e00aec5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:16:21
[INFO] [stderr]    |
[INFO] [stderr] 16 | type BoxError = Box<Error>;
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:17:22
[INFO] [stderr]    |
[INFO] [stderr] 17 | type FileFilter = Rc<Fn(&str) -> bool>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 | type LineFilter = Rc<Fn(&str) -> bool>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:91:83
[INFO] [stderr]    |
[INFO] [stderr] 91 | pub fn watch_dir<F: ?Sized>(option: &WatchOption, callback: &F) -> Result<(), Box<Error>>
[INFO] [stderr]    |                                                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:130:59
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:130:76
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:16:21
[INFO] [stderr]    |
[INFO] [stderr] 16 | type BoxError = Box<Error>;
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:17:22
[INFO] [stderr]    |
[INFO] [stderr] 17 | type FileFilter = Rc<Fn(&str) -> bool>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 | type LineFilter = Rc<Fn(&str) -> bool>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:91:83
[INFO] [stderr]    |
[INFO] [stderr] 91 | pub fn watch_dir<F: ?Sized>(option: &WatchOption, callback: &F) -> Result<(), Box<Error>>
[INFO] [stderr]    |                                                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:130:59
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:130:76
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/taildir-c69a57ed236eb011
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/example-a87a6125c1c10dcb
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests taildir
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:130:59
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn register_dir(dir: &str, filter: &FileFilter) -> Result<(HandleMap), Box<Error>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6173772f559196968cb52ab31c919e2a4e75dcb5df675af73a0cd5c10e00aec5"`
[INFO] running `"docker" "rm" "-f" "6173772f559196968cb52ab31c919e2a4e75dcb5df675af73a0cd5c10e00aec5"`
[INFO] [stdout] 6173772f559196968cb52ab31c919e2a4e75dcb5df675af73a0cd5c10e00aec5