[INFO] fetching crate daemon 0.0.8...
[INFO] checking daemon-0.0.8 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate daemon 0.0.8 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate daemon 0.0.8 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate daemon 0.0.8
[INFO] finished tweaking crates.io crate daemon 0.0.8
[INFO] tweaked toml for crates.io crate daemon 0.0.8 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e3b867895313b791bb6705e1494bece591dcb17889f473f2f29431b3d83f53b1
[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" "e3b867895313b791bb6705e1494bece591dcb17889f473f2f29431b3d83f53b1"`
[INFO] [stderr]     Checking daemon v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(guard_compare_and_swap(daemon_null(), &mut daemon));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         try!(guard_compare_and_swap(&mut daemon, daemon_null()));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/linux.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 |     holder: Box<DaemonFunc>,
[INFO] [stderr]    |                 ^^^^^^^^^^ help: use `dyn`: `dyn DaemonFunc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/singleton.rs:38:46
[INFO] [stderr]    |
[INFO] [stderr] 38 |               static ONCE: ::std::sync::Once = ::std::sync::ONCE_INIT;
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/linux.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / declare_singleton!(
[INFO] [stderr] 10 | |     singleton,
[INFO] [stderr] 11 | |     DaemonHolder,
[INFO] [stderr] 12 | |     DaemonHolder {
[INFO] [stderr] 13 | |         holder: 0 as *mut DaemonStatic
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | );
[INFO] [stderr]    | |__- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]    --> src/linux.rs:125:42
[INFO] [stderr]     |
[INFO] [stderr] 125 | unsafe extern "system" fn signal_handler(sig: libc::c_int) {
[INFO] [stderr]     |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/linux.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     unsafe {
[INFO] [stderr]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `signal_handler`
[INFO] [stderr]    --> src/linux.rs:125:27
[INFO] [stderr]     |
[INFO] [stderr] 125 | unsafe extern "system" fn signal_handler(sig: libc::c_int) {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `raise`
[INFO] [stderr]    --> src/linux.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn raise(sig: libc::c_int) -> libc::c_int;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `signal`
[INFO] [stderr]    --> src/linux.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn signal(sig: libc::c_int, handler: *const libc::c_void) -> libc::c_int;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `kill`
[INFO] [stderr]    --> src/linux.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     fn kill(pid: libc::pid_t, sig: libc::c_int) -> libc::c_int;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(guard_compare_and_swap(daemon_null(), &mut daemon));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         try!(guard_compare_and_swap(&mut daemon, daemon_null()));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/linux.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 |     holder: Box<DaemonFunc>,
[INFO] [stderr]    |                 ^^^^^^^^^^ help: use `dyn`: `dyn DaemonFunc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/singleton.rs:38:46
[INFO] [stderr]    |
[INFO] [stderr] 38 |             static ONCE: ::std::sync::Once = ::std::sync::ONCE_INIT;
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr] ...
[INFO] [stderr] 61 |         declare_singleton!(simple_singleton, u32, 0);
[INFO] [stderr]    |         --------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/singleton.rs:38:46
[INFO] [stderr]    |
[INFO] [stderr] 38 |               static ONCE: ::std::sync::Once = ::std::sync::ONCE_INIT;
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/linux.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / declare_singleton!(
[INFO] [stderr] 10 | |     singleton,
[INFO] [stderr] 11 | |     DaemonHolder,
[INFO] [stderr] 12 | |     DaemonHolder {
[INFO] [stderr] 13 | |         holder: 0 as *mut DaemonStatic
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | );
[INFO] [stderr]    | |__- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]    --> src/linux.rs:125:42
[INFO] [stderr]     |
[INFO] [stderr] 125 | unsafe extern "system" fn signal_handler(sig: libc::c_int) {
[INFO] [stderr]     |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/linux.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     unsafe {
[INFO] [stderr]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `signal_handler`
[INFO] [stderr]    --> src/linux.rs:125:27
[INFO] [stderr]     |
[INFO] [stderr] 125 | unsafe extern "system" fn signal_handler(sig: libc::c_int) {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `raise`
[INFO] [stderr]    --> src/linux.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn raise(sig: libc::c_int) -> libc::c_int;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `signal`
[INFO] [stderr]    --> src/linux.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn signal(sig: libc::c_int, handler: *const libc::c_void) -> libc::c_int;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `kill`
[INFO] [stderr]    --> src/linux.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     fn kill(pid: libc::pid_t, sig: libc::c_int) -> libc::c_int;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "e3b867895313b791bb6705e1494bece591dcb17889f473f2f29431b3d83f53b1"`
[INFO] running `"docker" "rm" "-f" "e3b867895313b791bb6705e1494bece591dcb17889f473f2f29431b3d83f53b1"`
[INFO] [stdout] e3b867895313b791bb6705e1494bece591dcb17889f473f2f29431b3d83f53b1