[INFO] cloning repository https://github.com/google/rust-p9
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/google/rust-p9" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoogle%2Frust-p9", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoogle%2Frust-p9'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cde222cc087c92765d7d38c92b8f8ecd73eae9cb
[INFO] checking google/rust-p9 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoogle%2Frust-p9" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/google/rust-p9 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/google/rust-p9
[INFO] finished tweaking git repo https://github.com/google/rust-p9
[INFO] tweaked toml for git repo https://github.com/google/rust-p9 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/google/rust-p9 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.177
[INFO] [stderr]   Downloaded serde_derive v1.0.177
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48b7bf3fd43c1bedd5dfa88c32d66ab39a2b03944a9e0427c1f5b4f1ed4da5a7
[INFO] running `Command { std: "docker" "start" "-a" "48b7bf3fd43c1bedd5dfa88c32d66ab39a2b03944a9e0427c1f5b4f1ed4da5a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48b7bf3fd43c1bedd5dfa88c32d66ab39a2b03944a9e0427c1f5b4f1ed4da5a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48b7bf3fd43c1bedd5dfa88c32d66ab39a2b03944a9e0427c1f5b4f1ed4da5a7", kill_on_drop: false }`
[INFO] [stdout] 48b7bf3fd43c1bedd5dfa88c32d66ab39a2b03944a9e0427c1f5b4f1ed4da5a7
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 731145f4507127e9eda9962709e280065e4774910ff933a2cfe504c635d8dc64
[INFO] running `Command { std: "docker" "start" "-a" "731145f4507127e9eda9962709e280065e4774910ff933a2cfe504c635d8dc64", kill_on_drop: false }`
[INFO] [stderr]     Checking proc-macro2 v1.0.66
[INFO] [stderr]    Compiling serde v1.0.177
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling serde_derive v1.0.177
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking quote v1.0.32
[INFO] [stderr]     Checking p9_wire_format_derive v0.2.3 (/opt/rustwide/workdir/p9_wire_format_derive)
[INFO] [stderr]     Checking p9 v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]   --> src/protocol/messages.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `String` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/protocol/messages.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]   --> src/protocol/wire_format.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `String` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/protocol/wire_format.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]   --> src/protocol/messages.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `String` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/protocol/messages.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]   --> src/protocol/wire_format.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `String` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]    --> src/protocol/wire_format.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |     use std::mem;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 212 |     use super::*;
[INFO] [stdout]     |         -------- the item `mem` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]    --> src/protocol/wire_format.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |     use std::string::String;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 211 |
[INFO] [stdout] 212 |     use super::*;
[INFO] [stdout]     |         -------- the item `String` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `CString` is imported redundantly
[INFO] [stdout]   --> src/server/tests.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | use std::ffi::CString;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 | use super::*;
[INFO] [stdout]    |     -------- the item `CString` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `File` is imported redundantly
[INFO] [stdout]   --> src/server/tests.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 | use super::*;
[INFO] [stdout]    |     -------- the item `File` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `io` is imported redundantly
[INFO] [stdout]   --> src/server/tests.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::io;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 | use super::*;
[INFO] [stdout]    |     -------- the item `io` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]   --> src/server/tests.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::Cursor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 | use super::*;
[INFO] [stdout]    |     -------- the item `Cursor` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]   --> src/server/tests.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 | use super::*;
[INFO] [stdout]    |     -------- the item `mem` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Deref` is imported redundantly
[INFO] [stdout]   --> src/server/tests.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::ops::Deref;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 | use super::*;
[INFO] [stdout]    |     -------- the item `Deref` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Path` is imported redundantly
[INFO] [stdout]   --> src/server/tests.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 | use super::*;
[INFO] [stdout]    |     -------- the item `Path` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ino` is never read
[INFO] [stdout]   --> src/server/read_dir.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct DirEntry<'r> {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 41 |     pub ino: libc::ino64_t,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ino` is never read
[INFO] [stdout]   --> src/server/read_dir.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct DirEntry<'r> {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 41 |     pub ino: libc::ino64_t,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.96s
[INFO] running `Command { std: "docker" "inspect" "731145f4507127e9eda9962709e280065e4774910ff933a2cfe504c635d8dc64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "731145f4507127e9eda9962709e280065e4774910ff933a2cfe504c635d8dc64", kill_on_drop: false }`
[INFO] [stdout] 731145f4507127e9eda9962709e280065e4774910ff933a2cfe504c635d8dc64