[INFO] fetching crate syslib 0.0.0...
[INFO] checking syslib-0.0.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate syslib 0.0.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate syslib 0.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate syslib 0.0.0
[INFO] tweaked toml for crates.io crate syslib 0.0.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate syslib 0.0.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate syslib 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syslib-macro v0.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 146d2d715d576da85195e336da7ea8ffb3df75018696b1b7a8122541e7cf562f
[INFO] running `Command { std: "docker" "start" "-a" "146d2d715d576da85195e336da7ea8ffb3df75018696b1b7a8122541e7cf562f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "146d2d715d576da85195e336da7ea8ffb3df75018696b1b7a8122541e7cf562f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "146d2d715d576da85195e336da7ea8ffb3df75018696b1b7a8122541e7cf562f", kill_on_drop: false }`
[INFO] [stdout] 146d2d715d576da85195e336da7ea8ffb3df75018696b1b7a8122541e7cf562f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0134975df1511fbd6cb9985c8bb3a0d9219e1cb707a4ae36fc9e5dbae38ca5c1
[INFO] running `Command { std: "docker" "start" "-a" "0134975df1511fbd6cb9985c8bb3a0d9219e1cb707a4ae36fc9e5dbae38ca5c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling syslib-macro v0.0.0
[INFO] [stderr]     Checking syslib v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:74:32
[INFO] [stdout]     |
[INFO] [stdout] 74  |           $vis struct $name($vis $ty);
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 75  | |         impl $name {
[INFO] [stdout] 76  | |             $vis const NONE: Self = Self(0);
[INFO] [stdout] 77  | |             $(
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |                 #[derive(Debug)]
[INFO] [stdout] 132 | |                 struct Unknown($ty);
[INFO] [stdout]     | |________________________-------___^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          field in this struct
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/x86_64/epoll.rs:5:1
[INFO] [stdout]     |
[INFO] [stdout] 5   | / c_flags!{
[INFO] [stdout] 6   | |     pub Flags(u32) {
[INFO] [stdout] 7   | |         CLOSE_ON_EXEC = 0o2000000
[INFO] [stdout] 8   | |     } _ => Err(crate::Error::EINVAL)
[INFO] [stdout] 9   | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `c_flags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:74:32
[INFO] [stdout]     |
[INFO] [stdout] 74  |           $vis struct $name($vis $ty);
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 75  | |         impl $name {
[INFO] [stdout] 76  | |             $vis const NONE: Self = Self(0);
[INFO] [stdout] 77  | |             $(
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |                 #[derive(Debug)]
[INFO] [stdout] 132 | |                 struct Unknown($ty);
[INFO] [stdout]     | |________________________-------___^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          field in this struct
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/x86_64/epoll.rs:11:1
[INFO] [stdout]     |
[INFO] [stdout] 11  | / c_flags!{
[INFO] [stdout] 12  | |     pub Events(u32) {
[INFO] [stdout] 13  | |         INPUT = 0x01,
[INFO] [stdout] 14  | |         OUTPUT = 0x04,
[INFO] [stdout] ...   |
[INFO] [stdout] 17  | |     } _ => Err(crate::Error::EINVAL)
[INFO] [stdout] 18  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: this warning originates in the macro `c_flags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:74:32
[INFO] [stdout]     |
[INFO] [stdout] 74  |           $vis struct $name($vis $ty);
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 75  | |         impl $name {
[INFO] [stdout] 76  | |             $vis const NONE: Self = Self(0);
[INFO] [stdout] 77  | |             $(
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |                 #[derive(Debug)]
[INFO] [stdout] 132 | |                 struct Unknown($ty);
[INFO] [stdout]     | |________________________-------___^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          field in this struct
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/x86_64.rs:656:5
[INFO] [stdout]     |
[INFO] [stdout] 656 | /     crate::c_flags!{
[INFO] [stdout] 657 | |         pub Flags(u32) {
[INFO] [stdout] 658 | |             READ_ONLY = 0b00,
[INFO] [stdout] 659 | |             WRITE_ONLY = 0b01,
[INFO] [stdout] ...   |
[INFO] [stdout] 666 | |         } _ => Err(Error::EINVAL)
[INFO] [stdout] 667 | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: this warning originates in the macro `crate::c_flags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:74:32
[INFO] [stdout]     |
[INFO] [stdout] 74  |            $vis struct $name($vis $ty);
[INFO] [stdout]     |   ________________________________^
[INFO] [stdout] 75  |  |         impl $name {
[INFO] [stdout] 76  |  |             $vis const NONE: Self = Self(0);
[INFO] [stdout] 77  |  |             $(
[INFO] [stdout] ...    |
[INFO] [stdout] 131 |  |                 #[derive(Debug)]
[INFO] [stdout] 132 |  |                 struct Unknown($ty);
[INFO] [stdout]     |  |________________________-------___^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           field in this struct
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sock.rs:67:1
[INFO] [stdout]     |
[INFO] [stdout] 67  | /  c_flags!{
[INFO] [stdout] 68  | |      pub Flags(u32) {
[INFO] [stdout] 69  | |          OOB = 0x01,
[INFO] [stdout] 70  | |          PEEK = 0x02,
[INFO] [stdout] ...   |
[INFO] [stdout] 74  | |      } _ => Err(crate::Error::EINVAL)
[INFO] [stdout] 75  | |  }
[INFO] [stdout]     | |__- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: this warning originates in the macro `c_flags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:74:32
[INFO] [stdout]     |
[INFO] [stdout] 74  |           $vis struct $name($vis $ty);
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 75  | |         impl $name {
[INFO] [stdout] 76  | |             $vis const NONE: Self = Self(0);
[INFO] [stdout] 77  | |             $(
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |                 #[derive(Debug)]
[INFO] [stdout] 132 | |                 struct Unknown($ty);
[INFO] [stdout]     | |________________________-------___^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          field in this struct
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/x86_64/epoll.rs:5:1
[INFO] [stdout]     |
[INFO] [stdout] 5   | / c_flags!{
[INFO] [stdout] 6   | |     pub Flags(u32) {
[INFO] [stdout] 7   | |         CLOSE_ON_EXEC = 0o2000000
[INFO] [stdout] 8   | |     } _ => Err(crate::Error::EINVAL)
[INFO] [stdout] 9   | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `c_flags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:74:32
[INFO] [stdout]     |
[INFO] [stdout] 74  |           $vis struct $name($vis $ty);
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 75  | |         impl $name {
[INFO] [stdout] 76  | |             $vis const NONE: Self = Self(0);
[INFO] [stdout] 77  | |             $(
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |                 #[derive(Debug)]
[INFO] [stdout] 132 | |                 struct Unknown($ty);
[INFO] [stdout]     | |________________________-------___^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          field in this struct
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/x86_64/epoll.rs:11:1
[INFO] [stdout]     |
[INFO] [stdout] 11  | / c_flags!{
[INFO] [stdout] 12  | |     pub Events(u32) {
[INFO] [stdout] 13  | |         INPUT = 0x01,
[INFO] [stdout] 14  | |         OUTPUT = 0x04,
[INFO] [stdout] ...   |
[INFO] [stdout] 17  | |     } _ => Err(crate::Error::EINVAL)
[INFO] [stdout] 18  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: this warning originates in the macro `c_flags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:74:32
[INFO] [stdout]     |
[INFO] [stdout] 74  |           $vis struct $name($vis $ty);
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 75  | |         impl $name {
[INFO] [stdout] 76  | |             $vis const NONE: Self = Self(0);
[INFO] [stdout] 77  | |             $(
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |                 #[derive(Debug)]
[INFO] [stdout] 132 | |                 struct Unknown($ty);
[INFO] [stdout]     | |________________________-------___^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          field in this struct
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/x86_64.rs:656:5
[INFO] [stdout]     |
[INFO] [stdout] 656 | /     crate::c_flags!{
[INFO] [stdout] 657 | |         pub Flags(u32) {
[INFO] [stdout] 658 | |             READ_ONLY = 0b00,
[INFO] [stdout] 659 | |             WRITE_ONLY = 0b01,
[INFO] [stdout] ...   |
[INFO] [stdout] 666 | |         } _ => Err(Error::EINVAL)
[INFO] [stdout] 667 | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: this warning originates in the macro `crate::c_flags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:74:32
[INFO] [stdout]     |
[INFO] [stdout] 74  |            $vis struct $name($vis $ty);
[INFO] [stdout]     |   ________________________________^
[INFO] [stdout] 75  |  |         impl $name {
[INFO] [stdout] 76  |  |             $vis const NONE: Self = Self(0);
[INFO] [stdout] 77  |  |             $(
[INFO] [stdout] ...    |
[INFO] [stdout] 131 |  |                 #[derive(Debug)]
[INFO] [stdout] 132 |  |                 struct Unknown($ty);
[INFO] [stdout]     |  |________________________-------___^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           field in this struct
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sock.rs:67:1
[INFO] [stdout]     |
[INFO] [stdout] 67  | /  c_flags!{
[INFO] [stdout] 68  | |      pub Flags(u32) {
[INFO] [stdout] 69  | |          OOB = 0x01,
[INFO] [stdout] 70  | |          PEEK = 0x02,
[INFO] [stdout] ...   |
[INFO] [stdout] 74  | |      } _ => Err(crate::Error::EINVAL)
[INFO] [stdout] 75  | |  }
[INFO] [stdout]     | |__- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Unknown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: this warning originates in the macro `c_flags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.09s
[INFO] running `Command { std: "docker" "inspect" "0134975df1511fbd6cb9985c8bb3a0d9219e1cb707a4ae36fc9e5dbae38ca5c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0134975df1511fbd6cb9985c8bb3a0d9219e1cb707a4ae36fc9e5dbae38ca5c1", kill_on_drop: false }`
[INFO] [stdout] 0134975df1511fbd6cb9985c8bb3a0d9219e1cb707a4ae36fc9e5dbae38ca5c1