[INFO] fetching crate corcovado 0.0.28...
[INFO] checking corcovado-0.0.28 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate corcovado 0.0.28 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate corcovado 0.0.28 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate corcovado 0.0.28
[INFO] removed 1 missing tests
[INFO] finished tweaking crates.io crate corcovado 0.0.28
[INFO] tweaked toml for crates.io crate corcovado 0.0.28 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded env_logger v0.4.3
[INFO] [stderr]   Downloaded bytes v0.3.0
[INFO] [stderr]   Downloaded miow v0.5.0
[INFO] [stderr]   Downloaded windows v0.42.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf973f13d5ee9fbf5f0229b67838fda16137dadb51e15bd47dc09ffc58f27fd2
[INFO] running `Command { std: "docker" "start" "-a" "cf973f13d5ee9fbf5f0229b67838fda16137dadb51e15bd47dc09ffc58f27fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf973f13d5ee9fbf5f0229b67838fda16137dadb51e15bd47dc09ffc58f27fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf973f13d5ee9fbf5f0229b67838fda16137dadb51e15bd47dc09ffc58f27fd2", kill_on_drop: false }`
[INFO] [stdout] cf973f13d5ee9fbf5f0229b67838fda16137dadb51e15bd47dc09ffc58f27fd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c889442377c3eca9224abd1f374e7fb0075741828358f0c119910bc57bf23275
[INFO] running `Command { std: "docker" "start" "-a" "c889442377c3eca9224abd1f374e7fb0075741828358f0c119910bc57bf23275", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking corcovado v0.0.28 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stdout] warning: unused imports: `Error`, `Read`, `Write`
[INFO] [stdout]  --> src/io.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use std::io::{Error, ErrorKind, Read, Result, Write};
[INFO] [stdout]   |                   ^^^^^             ^^^^          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/socket.rs:7:12
[INFO] [stdout]     |
[INFO] [stdout] 7   | use libc::{self, c_int, c_ulong};
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Io`, `pipe`, `set_nonblock`
[INFO] [stdout]  --> src/sys/mod.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::unix::{pipe, set_nonblock, Awakener, EventedFd, Events, Io, Selector};
[INFO] [stdout]   |                      ^^^^  ^^^^^^^^^^^^                               ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/sys/unix/mod.rs:1:12
[INFO] [stdout]     |
[INFO] [stdout] 1   | use libc::{self, c_int};
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/sys/unix/dlsym.rs:5:5
[INFO] [stdout]     |
[INFO] [stdout] 5   | use libc;
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/sys/unix/epoll.rs:8:12
[INFO] [stdout]     |
[INFO] [stdout] 8   | use libc::{self, c_int};
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/sys/unix/io.rs:5:5
[INFO] [stdout]     |
[INFO] [stdout] 5   | use libc;
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/sys/unix/uio.rs:3:5
[INFO] [stdout]     |
[INFO] [stdout] 3   | use libc;
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iovec::IoVec`
[INFO] [stdout]   --> src/sys/unix/mod.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub use iovec::IoVec;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `map_non_block` is never used
[INFO] [stdout]  --> src/io.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait MapNonBlock<T> {
[INFO] [stdout]   |           ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9 |     fn map_non_block(self) -> Result<Option<T>>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `readv` and `writev` are never used
[INFO] [stdout]   --> src/sys/unix/uio.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub trait VecIo {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] 9  |     fn readv(&self, bufs: &mut [&mut IoVec]) -> io::Result<usize>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 10 |
[INFO] [stdout] 11 |     fn writev(&self, bufs: &[&IoVec]) -> io::Result<usize>;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.114
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] error: couldn't read benches/bench_poll.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `corcovado` (bench "bench_poll") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused imports: `Error`, `Read`, `Write`
[INFO] [stdout]  --> src/io.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use std::io::{Error, ErrorKind, Read, Result, Write};
[INFO] [stdout]   |                   ^^^^^             ^^^^          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/socket.rs:7:12
[INFO] [stdout]     |
[INFO] [stdout] 7   | use libc::{self, c_int, c_ulong};
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Io`, `pipe`, `set_nonblock`
[INFO] [stdout]  --> src/sys/mod.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::unix::{pipe, set_nonblock, Awakener, EventedFd, Events, Io, Selector};
[INFO] [stdout]   |                      ^^^^  ^^^^^^^^^^^^                               ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/sys/unix/mod.rs:1:12
[INFO] [stdout]     |
[INFO] [stdout] 1   | use libc::{self, c_int};
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/sys/unix/dlsym.rs:5:5
[INFO] [stdout]     |
[INFO] [stdout] 5   | use libc;
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/sys/unix/epoll.rs:8:12
[INFO] [stdout]     |
[INFO] [stdout] 8   | use libc::{self, c_int};
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/sys/unix/io.rs:5:5
[INFO] [stdout]     |
[INFO] [stdout] 5   | use libc;
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/sys/unix/uio.rs:3:5
[INFO] [stdout]     |
[INFO] [stdout] 3   | use libc;
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iovec::IoVec`
[INFO] [stdout]   --> src/sys/unix/mod.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub use iovec::IoVec;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]    --> src/timer.rs:604:21
[INFO] [stdout]     |
[INFO] [stdout] 603 |     use super::*;
[INFO] [stdout]     |         -------- the item `Duration` is already imported here
[INFO] [stdout] 604 |     use std::time::{Duration, Instant};
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Instant` is imported redundantly
[INFO] [stdout]    --> src/timer.rs:604:31
[INFO] [stdout]     |
[INFO] [stdout] 603 |     use super::*;
[INFO] [stdout]     |         -------- the item `Instant` is already imported here
[INFO] [stdout] 604 |     use std::time::{Duration, Instant};
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `map_non_block` is never used
[INFO] [stdout]  --> src/io.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait MapNonBlock<T> {
[INFO] [stdout]   |           ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9 |     fn map_non_block(self) -> Result<Option<T>>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `readv` and `writev` are never used
[INFO] [stdout]   --> src/sys/unix/uio.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub trait VecIo {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] 9  |     fn readv(&self, bufs: &mut [&mut IoVec]) -> io::Result<usize>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 10 |
[INFO] [stdout] 11 |     fn writev(&self, bufs: &[&IoVec]) -> io::Result<usize>;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c889442377c3eca9224abd1f374e7fb0075741828358f0c119910bc57bf23275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c889442377c3eca9224abd1f374e7fb0075741828358f0c119910bc57bf23275", kill_on_drop: false }`
[INFO] [stdout] c889442377c3eca9224abd1f374e7fb0075741828358f0c119910bc57bf23275
