[INFO] fetching crate daemon 0.0.8...
[INFO] checking daemon-0.0.8 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate daemon 0.0.8 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate daemon 0.0.8 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", 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] 539428f9d2c01ac15a63d695e8b0d1f66e0597d968cb63740fe00d2a9e3d1e33
[INFO] running `Command { std: "docker" "start" "-a" "539428f9d2c01ac15a63d695e8b0d1f66e0597d968cb63740fe00d2a9e3d1e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "539428f9d2c01ac15a63d695e8b0d1f66e0597d968cb63740fe00d2a9e3d1e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "539428f9d2c01ac15a63d695e8b0d1f66e0597d968cb63740fe00d2a9e3d1e33", kill_on_drop: false }`
[INFO] [stdout] 539428f9d2c01ac15a63d695e8b0d1f66e0597d968cb63740fe00d2a9e3d1e33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0864f4640fd1bcd1c40a4ce163f7085e54cd916c9e1712924d4e3791ac888423
[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" "0864f4640fd1bcd1c40a4ce163f7085e54cd916c9e1712924d4e3791ac888423", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking daemon v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         try!(guard_compare_and_swap(daemon_null(), &mut daemon));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(guard_compare_and_swap(&mut daemon, daemon_null()));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/linux.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |     holder: Box<DaemonFunc>,
[INFO] [stdout]    |                 ^^^^^^^^^^ help: use `dyn`: `dyn DaemonFunc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/singleton.rs:38:46
[INFO] [stdout]    |
[INFO] [stdout] 38 |             static ONCE: ::std::sync::Once = ::std::sync::ONCE_INIT;
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout] ...
[INFO] [stdout] 61 |         declare_singleton!(simple_singleton, u32, 0);
[INFO] [stdout]    |         --------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/singleton.rs:38:46
[INFO] [stdout]    |
[INFO] [stdout] 38 |               static ONCE: ::std::sync::Once = ::std::sync::ONCE_INIT;
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/linux.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / declare_singleton!(
[INFO] [stdout] 10 | |     singleton,
[INFO] [stdout] 11 | |     DaemonHolder,
[INFO] [stdout] 12 | |     DaemonHolder {
[INFO] [stdout] 13 | |         holder: 0 as *mut DaemonStatic
[INFO] [stdout] 14 | |     }
[INFO] [stdout] 15 | | );
[INFO] [stdout]    | |__- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         try!(guard_compare_and_swap(daemon_null(), &mut daemon));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(guard_compare_and_swap(&mut daemon, daemon_null()));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/linux.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |     holder: Box<DaemonFunc>,
[INFO] [stdout]    |                 ^^^^^^^^^^ help: use `dyn`: `dyn DaemonFunc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]    --> src/linux.rs:125:42
[INFO] [stdout]     |
[INFO] [stdout] 125 | unsafe extern "system" fn signal_handler(sig: libc::c_int) {
[INFO] [stdout]     |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/singleton.rs:38:46
[INFO] [stdout]    |
[INFO] [stdout] 38 |               static ONCE: ::std::sync::Once = ::std::sync::ONCE_INIT;
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/linux.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / declare_singleton!(
[INFO] [stdout] 10 | |     singleton,
[INFO] [stdout] 11 | |     DaemonHolder,
[INFO] [stdout] 12 | |     DaemonHolder {
[INFO] [stdout] 13 | |         holder: 0 as *mut DaemonStatic
[INFO] [stdout] 14 | |     }
[INFO] [stdout] 15 | | );
[INFO] [stdout]    | |__- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/linux.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `signal_handler`
[INFO] [stdout]    --> src/linux.rs:125:27
[INFO] [stdout]     |
[INFO] [stdout] 125 | unsafe extern "system" fn signal_handler(sig: libc::c_int) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `raise`
[INFO] [stdout]    --> src/linux.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn raise(sig: libc::c_int) -> libc::c_int;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `signal`
[INFO] [stdout]    --> src/linux.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn signal(sig: libc::c_int, handler: *const libc::c_void) -> libc::c_int;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `kill`
[INFO] [stdout]    --> src/linux.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn kill(pid: libc::pid_t, sig: libc::c_int) -> libc::c_int;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]    --> src/linux.rs:125:42
[INFO] [stdout]     |
[INFO] [stdout] 125 | unsafe extern "system" fn signal_handler(sig: libc::c_int) {
[INFO] [stdout]     |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/linux.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `signal_handler`
[INFO] [stdout]    --> src/linux.rs:125:27
[INFO] [stdout]     |
[INFO] [stdout] 125 | unsafe extern "system" fn signal_handler(sig: libc::c_int) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `raise`
[INFO] [stdout]    --> src/linux.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn raise(sig: libc::c_int) -> libc::c_int;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `signal`
[INFO] [stdout]    --> src/linux.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn signal(sig: libc::c_int, handler: *const libc::c_void) -> libc::c_int;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `kill`
[INFO] [stdout]    --> src/linux.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn kill(pid: libc::pid_t, sig: libc::c_int) -> libc::c_int;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "0864f4640fd1bcd1c40a4ce163f7085e54cd916c9e1712924d4e3791ac888423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0864f4640fd1bcd1c40a4ce163f7085e54cd916c9e1712924d4e3791ac888423", kill_on_drop: false }`
[INFO] [stdout] 0864f4640fd1bcd1c40a4ce163f7085e54cd916c9e1712924d4e3791ac888423