[INFO] fetching crate sem_safe 0.2.1...
[INFO] testing sem_safe-0.2.1 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate sem_safe 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate sem_safe 0.2.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate sem_safe 0.2.1
[INFO] tweaked toml for crates.io crate sem_safe 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sem_safe 0.2.1 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sem_safe 0.2.1 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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 020a69f79a687cc5fbe0f8172fe2ed91392afaa8f252f39652f25e2df94c4fee
[INFO] running `Command { std: "docker" "start" "-a" "020a69f79a687cc5fbe0f8172fe2ed91392afaa8f252f39652f25e2df94c4fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "020a69f79a687cc5fbe0f8172fe2ed91392afaa8f252f39652f25e2df94c4fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "020a69f79a687cc5fbe0f8172fe2ed91392afaa8f252f39652f25e2df94c4fee", kill_on_drop: false }`
[INFO] [stdout] 020a69f79a687cc5fbe0f8172fe2ed91392afaa8f252f39652f25e2df94c4fee
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a759bef553a84664b13ae35e45571a259ef357696206ae557ef65ab7a7cf07bd
[INFO] running `Command { std: "docker" "start" "-a" "a759bef553a84664b13ae35e45571a259ef357696206ae557ef65ab7a7cf07bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling errno v0.3.11
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling sem_safe v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "a759bef553a84664b13ae35e45571a259ef357696206ae557ef65ab7a7cf07bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a759bef553a84664b13ae35e45571a259ef357696206ae557ef65ab7a7cf07bd", kill_on_drop: false }`
[INFO] [stdout] a759bef553a84664b13ae35e45571a259ef357696206ae557ef65ab7a7cf07bd
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce488aed8fc8309c53968a1c0d92826b94ca8131fb8312d5051de6d16b78d066
[INFO] running `Command { std: "docker" "start" "-a" "ce488aed8fc8309c53968a1c0d92826b94ca8131fb8312d5051de6d16b78d066", kill_on_drop: false }`
[INFO] [stderr]    Compiling sem_safe v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stdout]    --> examples/multi-proc/enabled.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 | /         [me, o1, o2].map(|NamedSem { sem, .. }| {
[INFO] [stdout] ...   |
[INFO] [stdout] 106 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `-W unused-must-use` implied by `-W unused`
[INFO] [stdout]     = help: to override `-W unused` add `#[allow(unused_must_use)]`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let _ = [me, o1, o2].map(|NamedSem { sem, .. }| {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stdout]   --> tests/usage/named.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     [&s1, &s2, &s3].map(|sem| {
[INFO] [stdout] 37 | |         let r = sem.sem_ref().try_wait();
[INFO] [stdout] 38 | |         assert!(r.is_err());
[INFO] [stdout] 39 | |         assert_eq!(errno(), libc::EAGAIN);
[INFO] [stdout] 40 | |         assert_eq!(r.map_errno().unwrap_err().kind(), io::ErrorKind::WouldBlock);
[INFO] [stdout] 41 | |     });
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `-W unused-must-use` implied by `-W unused`
[INFO] [stdout]    = help: to override `-W unused` add `#[allow(unused_must_use)]`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let _ = [&s1, &s2, &s3].map(|sem| {
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "ce488aed8fc8309c53968a1c0d92826b94ca8131fb8312d5051de6d16b78d066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce488aed8fc8309c53968a1c0d92826b94ca8131fb8312d5051de6d16b78d066", kill_on_drop: false }`
[INFO] [stdout] ce488aed8fc8309c53968a1c0d92826b94ca8131fb8312d5051de6d16b78d066
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7d2a347819b28abcb55b5b3255a185208f79dcd4da07a77d6cf6ec254adf1d52
[INFO] running `Command { std: "docker" "start" "-a" "7d2a347819b28abcb55b5b3255a185208f79dcd4da07a77d6cf6ec254adf1d52", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stdout] 
[INFO] [stderr]    --> examples/multi-proc/enabled.rs:101:9
[INFO] [stdout] running 3 tests
[INFO] [stderr]     |
[INFO] [stdout] test non_named::init_once::tests::is_ready ... ok
[INFO] [stderr] 101 | /         [me, o1, o2].map(|NamedSem { sem, .. }| {
[INFO] [stdout] test non_named::init_once::tests::synchronizes ... ok
[INFO] [stderr] ...   |
[INFO] [stdout] test non_named::init_once::tests::failure_isnt_ready ... ok
[INFO] [stderr] 106 | |         });
[INFO] [stdout] 
[INFO] [stderr]     | |__________^
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = note: `-W unused-must-use` implied by `-W unused`
[INFO] [stdout] 
[INFO] [stderr]     = help: to override `-W unused` add `#[allow(unused_must_use)]`
[INFO] [stdout] running 36 tests
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let _ = [me, o1, o2].map(|NamedSem { sem, .. }| {
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stderr]   --> tests/usage/named.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 | /     [&s1, &s2, &s3].map(|sem| {
[INFO] [stderr] 37 | |         let r = sem.sem_ref().try_wait();
[INFO] [stderr] 38 | |         assert!(r.is_err());
[INFO] [stderr] 39 | |         assert_eq!(errno(), libc::EAGAIN);
[INFO] [stderr] 40 | |         assert_eq!(r.map_errno().unwrap_err().kind(), io::ErrorKind::WouldBlock);
[INFO] [stderr] 41 | |     });
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `-W unused-must-use` implied by `-W unused`
[INFO] [stderr]    = help: to override `-W unused` add `#[allow(unused_must_use)]`
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let _ = [&s1, &s2, &s3].map(|sem| {
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `sem_safe` (example "multi-proc") generated 1 warning
[INFO] [stderr] warning: `sem_safe` (test "usage") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sem_safe-cb18574830cf8841)
[INFO] [stderr]      Running tests/usage/main.rs (/opt/rustwide/target/debug/deps/usage-aaab83dfcdb10c2d)
[INFO] [stdout] test anonymous::generic ... ok
[INFO] [stdout] test anonymous::init_failure ... ok
[INFO] [stdout] test anonymous::drop ... ok
[INFO] [stdout] test anonymous::fmt ... ok
[INFO] [stdout] test anonymous::init_only_once ... ok
[INFO] [stdout] test anonymous::is_unpin ... ok
[INFO] [stdout] test named::already_exists ... ok
[INFO] [stdout] test named::anonymous ... ok
[INFO] [stdout] test anonymous::methods_still_need_pin ... ok
[INFO] [stdout] test anonymous::memory_ordering ... ok
[INFO] [stdout] test anonymous::rarer ... ok
[INFO] [stdout] test named::excessive_value ... ok
[INFO] [stdout] test named::missing ... ok
[INFO] [stdout] test named::fmt ... ok
[INFO] [stdout] test plaster::drop ... ok
[INFO] [stdout] test plaster::fmt ... ok
[INFO] [stdout] test plaster::init_failure ... ok
[INFO] [stdout] test plaster::init_only_once ... ok
[INFO] [stdout] test plaster::try_init_failure ... ok
[INFO] [stdout] test plaster::memory_ordering ... ok
[INFO] [stdout] test named::basic ... ok
[INFO] [stdout] test plaster::generic ... ok
[INFO] [stdout] test plaster::rarer ... ok
[INFO] [stdout] test unnamed::generic ... ok
[INFO] [stdout] test unnamed::fmt ... ok
[INFO] [stdout] test unnamed::drop_and_reinit ... ok
[INFO] [stdout] test unnamed::init_failure ... ok
[INFO] [stdout] test unnamed::init_only_once ... ok
[INFO] [stdout] test unnamed::try_init_failure ... ok
[INFO] [stdout] test unnamed::rarer ... ok
[INFO] [stdout] test unnamed::memory_ordering ... ok
[INFO] [stdout] test anonymous::try_init_failure ... ok
[INFO] [stdout] test refs::eq ... ok
[INFO] [stdout] test plaster::common ... ok
[INFO] [stdout] test anonymous::common ... ok
[INFO] [stderr]    Doc-tests sem_safe
[INFO] [stdout] test unnamed::common ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/unnamed.rs - unnamed::compile_fail_tests::lifetime_enforced (line 181) - compile fail ... ok
[INFO] [stdout] test src/anonymous.rs - anonymous::compile_fail_tests::lifetime_enforced (line 138) - compile fail ... ok
[INFO] [stdout] test src/unnamed.rs - unnamed::compile_fail_tests::must_pin (line 173) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7d2a347819b28abcb55b5b3255a185208f79dcd4da07a77d6cf6ec254adf1d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d2a347819b28abcb55b5b3255a185208f79dcd4da07a77d6cf6ec254adf1d52", kill_on_drop: false }`
[INFO] [stdout] 7d2a347819b28abcb55b5b3255a185208f79dcd4da07a77d6cf6ec254adf1d52