[INFO] fetching crate shm-fd 0.5.0...
[INFO] checking shm-fd-0.5.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate shm-fd 0.5.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate shm-fd 0.5.0
[INFO] finished tweaking crates.io crate shm-fd 0.5.0
[INFO] tweaked toml for crates.io crate shm-fd 0.5.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shm-fd 0.5.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate shm-fd 0.5.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b9705883ba8567018970ec924564b1a4ee9bc561278f14d8b7a1e212df0f2d5
[INFO] running `Command { std: "docker" "start" "-a" "9b9705883ba8567018970ec924564b1a4ee9bc561278f14d8b7a1e212df0f2d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b9705883ba8567018970ec924564b1a4ee9bc561278f14d8b7a1e212df0f2d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b9705883ba8567018970ec924564b1a4ee9bc561278f14d8b7a1e212df0f2d5", kill_on_drop: false }`
[INFO] [stdout] 9b9705883ba8567018970ec924564b1a4ee9bc561278f14d8b7a1e212df0f2d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cb59c6ed7a108856512d3c3b1f61007f6da39cec21db232fc072a70669d75e6
[INFO] running `Command { std: "docker" "start" "-a" "7cb59c6ed7a108856512d3c3b1f61007f6da39cec21db232fc072a70669d75e6", kill_on_drop: false }`
[INFO] [stderr]     Checking shm-fd v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]   --> src/listenfd.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub enum Error {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/op.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct Stat {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 29 |     pub st_mode: u32,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 30 |     pub st_uid: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 31 |     pub st_gid: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 32 |     pub st_size: OffT,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 33 |     pub st_blksize: BlkSizeT,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 34 |     pub st_blocks: BlkCntT,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 35 |     pub st_atime: TimeT,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 36 |     pub st_atime_nsec: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 37 |     pub st_mtime: TimeT,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 38 |     pub st_mtime_nsec: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 39 |     pub st_ctime: TimeT,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 40 |     pub st_ctime_nsec: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `close` is never read
[INFO] [stdout]   --> src/op.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct ShmVTable {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 54 |     pub fstat: fn(c_int, Option<&mut Stat>) -> c_int,
[INFO] [stdout] 55 |     pub close: fn(c_int) -> c_int,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]   --> src/listenfd.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub enum Error {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/op.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct Stat {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 29 |     pub st_mode: u32,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 30 |     pub st_uid: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 31 |     pub st_gid: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 32 |     pub st_size: OffT,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 33 |     pub st_blksize: BlkSizeT,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 34 |     pub st_blocks: BlkCntT,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 35 |     pub st_atime: TimeT,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 36 |     pub st_atime_nsec: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 37 |     pub st_mtime: TimeT,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 38 |     pub st_mtime_nsec: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 39 |     pub st_ctime: TimeT,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 40 |     pub st_ctime_nsec: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `close` is never read
[INFO] [stdout]   --> src/op.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct ShmVTable {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 54 |     pub fstat: fn(c_int, Option<&mut Stat>) -> c_int,
[INFO] [stdout] 55 |     pub close: fn(c_int) -> c_int,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "7cb59c6ed7a108856512d3c3b1f61007f6da39cec21db232fc072a70669d75e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb59c6ed7a108856512d3c3b1f61007f6da39cec21db232fc072a70669d75e6", kill_on_drop: false }`
[INFO] [stdout] 7cb59c6ed7a108856512d3c3b1f61007f6da39cec21db232fc072a70669d75e6