[INFO] updating cached repository jasonlai/nsexec
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jasonlai/nsexec
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jasonlai/nsexec" "work/ex/beta-1.38-1/sources/1.37.0/gh/jasonlai/nsexec"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jasonlai/nsexec'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jasonlai/nsexec" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jasonlai/nsexec"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jasonlai/nsexec'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6f90b8d7027f91862eb22ed3486a381e9b2d242b
[INFO] sha for GitHub repo jasonlai/nsexec: 6f90b8d7027f91862eb22ed3486a381e9b2d242b
[INFO] validating manifest of jasonlai/nsexec on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jasonlai/nsexec on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jasonlai/nsexec
[INFO] finished frobbing jasonlai/nsexec
[INFO] frobbed toml for jasonlai/nsexec written to work/ex/beta-1.38-1/sources/1.37.0/gh/jasonlai/nsexec/Cargo.toml
[INFO] started frobbing jasonlai/nsexec
[INFO] finished frobbing jasonlai/nsexec
[INFO] frobbed toml for jasonlai/nsexec written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jasonlai/nsexec/Cargo.toml
[INFO] crate jasonlai/nsexec already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jasonlai/nsexec/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing jasonlai/nsexec against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jasonlai/nsexec:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 14f24a3488dbfedab44395cca85b9131ed14d93360dd5afff2738ac05fec61cb
[INFO] running `"docker" "start" "-a" "14f24a3488dbfedab44395cca85b9131ed14d93360dd5afff2738ac05fec61cb"`
[INFO] [stderr]    Compiling nsexec v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nsexec.rs:41:55
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn from_arguments(args: Vec<String>, stdout: &mut Write, stderr: &mut Write) -> Result<T, i32>;
[INFO] [stderr]    |                                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nsexec.rs:41:75
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn from_arguments(args: Vec<String>, stdout: &mut Write, stderr: &mut Write) -> Result<T, i32>;
[INFO] [stderr]    |                                                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nsexec.rs:73:55
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn from_arguments(args: Vec<String>, stdout: &mut Write, stderr: &mut Write) -> Result<NSExecutor, i32> {
[INFO] [stderr]    |                                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nsexec.rs:73:75
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn from_arguments(args: Vec<String>, stdout: &mut Write, stderr: &mut Write) -> Result<NSExecutor, i32> {
[INFO] [stderr]    |                                                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.nsexec.dc3aw57r-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8" "/opt/crater/target/debug/deps/nsexec-c33da5e299d433e8.4eztibfkknqrjgq4.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lmount" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/liblibc-d019039477cac03b.rlib" "/opt/crater/target/debug/deps/libargparse-e85b1648908295e7.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lmount
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `nsexec`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "14f24a3488dbfedab44395cca85b9131ed14d93360dd5afff2738ac05fec61cb"`
[INFO] running `"docker" "rm" "-f" "14f24a3488dbfedab44395cca85b9131ed14d93360dd5afff2738ac05fec61cb"`
[INFO] [stdout] 14f24a3488dbfedab44395cca85b9131ed14d93360dd5afff2738ac05fec61cb