[INFO] fetching crate shm-fd 0.5.0...
[INFO] testing shm-fd-0.5.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate shm-fd 0.5.0 into /workspace/builds/worker-0-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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shm-fd 0.5.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3adb417dd1af0de8d749e932c82617c0be3f81b9bc920f29c4777c6de80a916
[INFO] running `Command { std: "docker" "start" "-a" "f3adb417dd1af0de8d749e932c82617c0be3f81b9bc920f29c4777c6de80a916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3adb417dd1af0de8d749e932c82617c0be3f81b9bc920f29c4777c6de80a916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3adb417dd1af0de8d749e932c82617c0be3f81b9bc920f29c4777c6de80a916", kill_on_drop: false }`
[INFO] [stdout] f3adb417dd1af0de8d749e932c82617c0be3f81b9bc920f29c4777c6de80a916
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7223d481041580e290d59029744d882a25ac9549c1b28aa411a311e7a597dd6
[INFO] running `Command { std: "docker" "start" "-a" "d7223d481041580e290d59029744d882a25ac9549c1b28aa411a311e7a597dd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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 0.13s
[INFO] running `Command { std: "docker" "inspect" "d7223d481041580e290d59029744d882a25ac9549c1b28aa411a311e7a597dd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7223d481041580e290d59029744d882a25ac9549c1b28aa411a311e7a597dd6", kill_on_drop: false }`
[INFO] [stdout] d7223d481041580e290d59029744d882a25ac9549c1b28aa411a311e7a597dd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 554928c0960242bdbb21ad5155d7055385a5c16a7e8e73a6aa1c18abbbd89f1a
[INFO] running `Command { std: "docker" "start" "-a" "554928c0960242bdbb21ad5155d7055385a5c16a7e8e73a6aa1c18abbbd89f1a", kill_on_drop: false }`
[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)]` (part of `#[warn(unused)]`) 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]    Compiling 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)]` (part of `#[warn(unused)]`) 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 `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "554928c0960242bdbb21ad5155d7055385a5c16a7e8e73a6aa1c18abbbd89f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "554928c0960242bdbb21ad5155d7055385a5c16a7e8e73a6aa1c18abbbd89f1a", kill_on_drop: false }`
[INFO] [stdout] 554928c0960242bdbb21ad5155d7055385a5c16a7e8e73a6aa1c18abbbd89f1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f673fa7d22c10301d350ffe9dfc26ea9c26ae95ab19898514a8b73e3cc82fd80
[INFO] running `Command { std: "docker" "start" "-a" "f673fa7d22c10301d350ffe9dfc26ea9c26ae95ab19898514a8b73e3cc82fd80", kill_on_drop: false }`
[INFO] [stderr] warning: enum `Error` is never used
[INFO] [stderr]   --> src/listenfd.rs:47:10
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub enum Error {
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple fields are never read
[INFO] [stderr]   --> src/op.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub struct Stat {
[INFO] [stderr]    |            ---- fields in this struct
[INFO] [stderr] 29 |     pub st_mode: u32,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 30 |     pub st_uid: u32,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 31 |     pub st_gid: u32,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 32 |     pub st_size: OffT,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 33 |     pub st_blksize: BlkSizeT,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr] 34 |     pub st_blocks: BlkCntT,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 35 |     pub st_atime: TimeT,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 36 |     pub st_atime_nsec: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 37 |     pub st_mtime: TimeT,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 38 |     pub st_mtime_nsec: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 39 |     pub st_ctime: TimeT,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 40 |     pub st_ctime_nsec: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `close` is never read
[INFO] [stderr]   --> src/op.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub struct ShmVTable {
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] 54 |     pub fstat: fn(c_int, Option<&mut Stat>) -> c_int,
[INFO] [stderr] 55 |     pub close: fn(c_int) -> c_int,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `shm-fd` (lib) generated 3 warnings
[INFO] [stderr] warning: `shm-fd` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shm_fd-7603e0face302a62)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests shm_fd
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f673fa7d22c10301d350ffe9dfc26ea9c26ae95ab19898514a8b73e3cc82fd80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f673fa7d22c10301d350ffe9dfc26ea9c26ae95ab19898514a8b73e3cc82fd80", kill_on_drop: false }`
[INFO] [stdout] f673fa7d22c10301d350ffe9dfc26ea9c26ae95ab19898514a8b73e3cc82fd80
