[INFO] cloning repository https://github.com/anguslees/freestack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anguslees/freestack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanguslees%2Ffreestack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanguslees%2Ffreestack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2723c59a15df75cffe0ca0232d9727727e20d3d1
[INFO] checking anguslees/freestack against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanguslees%2Ffreestack" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anguslees/freestack on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anguslees/freestack
[INFO] finished tweaking git repo https://github.com/anguslees/freestack
[INFO] tweaked toml for git repo https://github.com/anguslees/freestack written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/anguslees/freestack already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6be5c164804f283816f4d55d5f99085339270f9d3af9a230fc3c5b4c23935141
[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" "6be5c164804f283816f4d55d5f99085339270f9d3af9a230fc3c5b4c23935141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6be5c164804f283816f4d55d5f99085339270f9d3af9a230fc3c5b4c23935141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6be5c164804f283816f4d55d5f99085339270f9d3af9a230fc3c5b4c23935141", kill_on_drop: false }`
[INFO] [stdout] 6be5c164804f283816f4d55d5f99085339270f9d3af9a230fc3c5b4c23935141
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7f5a7d0074cc2a878346c060fc90e800d00b0a84eb5cc48772d983592f5ed30
[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" "b7f5a7d0074cc2a878346c060fc90e800d00b0a84eb5cc48772d983592f5ed30", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.4
[INFO] [stderr]     Checking winapi v0.2.5
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]    Compiling pkg-config v0.3.6
[INFO] [stderr]    Compiling gcc v0.3.21
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling byteorder v0.4.2
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking rustc-serialize v0.3.16
[INFO] [stderr]     Checking matches v0.1.2
[INFO] [stderr]     Checking num v0.1.30
[INFO] [stderr]     Checking unicode-normalization v0.1.2
[INFO] [stderr]     Checking lazy_static v0.1.15
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking httparse v1.1.1
[INFO] [stderr]     Checking language-tags v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]    Compiling advapi32-sys v0.1.2
[INFO] [stderr]     Checking unicode-bidi v0.2.3
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.16/src/serialize.rs:145:45
[INFO] [stdout]     |
[INFO] [stdout] 145 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nix v0.4.2
[INFO] [stderr]    Compiling log v0.3.5
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.1.4
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]    Compiling net2 v0.2.20
[INFO] [stderr]    Compiling time v0.1.34
[INFO] [stderr]     Checking num_cpus v0.2.10
[INFO] [stderr]     Checking rand v0.3.13
[INFO] [stderr]    Compiling miow v0.1.1
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]    Compiling openssl-sys v0.7.5
[INFO] [stderr]    Compiling unicase v1.1.1
[INFO] [stderr]     Checking serde v0.6.10
[INFO] [stderr]    Compiling openssl-sys-extras v0.7.5
[INFO] [stderr]    Compiling openssl v0.7.5
[INFO] [stdout] error[E0591]: can't transmute zero-sized type
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.4.2/src/sched.rs:168:20
[INFO] [stdout]     |
[INFO] [stdout] 168 |         ffi::clone(mem::transmute(callback), ptr as *mut c_void, flags, &mut cb)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: source type: for<'r> extern "C" fn(*mut Box<(dyn FnMut() -> isize + 'r)>) -> i32 {callback}
[INFO] [stdout]     = note: target type: *const for<'r> extern "C" fn(*const Box<(dyn FnMut() -> isize + 'r)>) -> i32
[INFO] [stdout]     = help: cast with `as` to a pointer instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0591]: can't transmute zero-sized type
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.4.2/src/sched.rs:168:20
[INFO] [stdout]     |
[INFO] [stdout] 168 |         ffi::clone(mem::transmute(callback), ptr as *mut c_void, flags, &mut cb)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: source type: for<'r> extern "C" fn(*mut Box<(dyn FnMut() -> isize + 'r)>) -> i32 {callback}
[INFO] [stdout]     = note: target type: *const for<'r> extern "C" fn(*const Box<(dyn FnMut() -> isize + 'r)>) -> i32
[INFO] [stdout]     = help: cast with `as` to a pointer instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0591`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0591`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b7f5a7d0074cc2a878346c060fc90e800d00b0a84eb5cc48772d983592f5ed30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7f5a7d0074cc2a878346c060fc90e800d00b0a84eb5cc48772d983592f5ed30", kill_on_drop: false }`
[INFO] [stdout] b7f5a7d0074cc2a878346c060fc90e800d00b0a84eb5cc48772d983592f5ed30