[INFO] fetching crate daemonizer 0.4.2...
[INFO] testing daemonizer-0.4.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate daemonizer 0.4.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate daemonizer 0.4.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate daemonizer 0.4.2
[INFO] finished tweaking crates.io crate daemonizer 0.4.2
[INFO] tweaked toml for crates.io crate daemonizer 0.4.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 82aa578c007c64e222a518f656f1a9e73d4b08c81bb41ea76f780f906940a2da
[INFO] running `Command { std: "docker" "start" "-a" "82aa578c007c64e222a518f656f1a9e73d4b08c81bb41ea76f780f906940a2da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82aa578c007c64e222a518f656f1a9e73d4b08c81bb41ea76f780f906940a2da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82aa578c007c64e222a518f656f1a9e73d4b08c81bb41ea76f780f906940a2da", kill_on_drop: false }`
[INFO] [stdout] 82aa578c007c64e222a518f656f1a9e73d4b08c81bb41ea76f780f906940a2da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ca1a2efa65fabe9ef22047b5deac04c49e9f1de1bfb4e3978978a3de6863322
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7ca1a2efa65fabe9ef22047b5deac04c49e9f1de1bfb4e3978978a3de6863322", kill_on_drop: false }`
[INFO] [stderr]    Compiling daemonizer v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/lib.rs:10:65
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let p = unsafe { libc::getpwnam(CString::new(name).unwrap().as_ptr()) };
[INFO] [stdout]    |                                     --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/lib.rs:11:66
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let g = unsafe { libc::getgrnam(CString::new(group).unwrap().as_ptr()) };
[INFO] [stdout]    |                                     ---------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "7ca1a2efa65fabe9ef22047b5deac04c49e9f1de1bfb4e3978978a3de6863322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ca1a2efa65fabe9ef22047b5deac04c49e9f1de1bfb4e3978978a3de6863322", kill_on_drop: false }`
[INFO] [stdout] 7ca1a2efa65fabe9ef22047b5deac04c49e9f1de1bfb4e3978978a3de6863322
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17a0bdaf15f10bbd29c06b4825ba479522c555f3ef2857a951b3c0562f7ac7ec
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "17a0bdaf15f10bbd29c06b4825ba479522c555f3ef2857a951b3c0562f7ac7ec", kill_on_drop: false }`
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/lib.rs:10:65
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let p = unsafe { libc::getpwnam(CString::new(name).unwrap().as_ptr()) };
[INFO] [stdout]    |                                     --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/lib.rs:11:66
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let g = unsafe { libc::getgrnam(CString::new(group).unwrap().as_ptr()) };
[INFO] [stdout]    |                                     ---------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling daemonizer v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/lib.rs:10:65
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let p = unsafe { libc::getpwnam(CString::new(name).unwrap().as_ptr()) };
[INFO] [stdout]    |                                     --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/lib.rs:11:66
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let g = unsafe { libc::getgrnam(CString::new(group).unwrap().as_ptr()) };
[INFO] [stdout]    |                                     ---------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "17a0bdaf15f10bbd29c06b4825ba479522c555f3ef2857a951b3c0562f7ac7ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17a0bdaf15f10bbd29c06b4825ba479522c555f3ef2857a951b3c0562f7ac7ec", kill_on_drop: false }`
[INFO] [stdout] 17a0bdaf15f10bbd29c06b4825ba479522c555f3ef2857a951b3c0562f7ac7ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f5567576f811de7289863df44de99676015a3a76b961a9fc0899fea28d2b07af
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f5567576f811de7289863df44de99676015a3a76b961a9fc0899fea28d2b07af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout] running 2 tests
[INFO] [stderr]   --> src/lib.rs:10:65
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let p = unsafe { libc::getpwnam(CString::new(name).unwrap().as_ptr()) };
[INFO] [stderr]    |                                     --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stderr]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stderr]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stderr]   --> src/lib.rs:11:66
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let g = unsafe { libc::getgrnam(CString::new(group).unwrap().as_ptr()) };
[INFO] [stderr]    |                                     ---------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]    |
[INFO] [stderr]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stderr]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stderr]   --> src/lib.rs:10:65
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let p = unsafe { libc::getpwnam(CString::new(name).unwrap().as_ptr()) };
[INFO] [stderr]    |                                     --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stderr]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stderr]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stderr]   --> src/lib.rs:11:66
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let g = unsafe { libc::getgrnam(CString::new(group).unwrap().as_ptr()) };
[INFO] [stderr]    |                                     ---------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]    |
[INFO] [stderr]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stderr]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/daemonizer-6d4f0236be1bb631
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/daemonizer-6d4f0236be1bb631` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "f5567576f811de7289863df44de99676015a3a76b961a9fc0899fea28d2b07af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5567576f811de7289863df44de99676015a3a76b961a9fc0899fea28d2b07af", kill_on_drop: false }`
[INFO] [stdout] f5567576f811de7289863df44de99676015a3a76b961a9fc0899fea28d2b07af