[INFO] crate outer_cgi 0.2.0 is already in cache
[INFO] extracting crate outer_cgi 0.2.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/outer_cgi/0.2.0
[INFO] extracting crate outer_cgi 0.2.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/outer_cgi/0.2.0
[INFO] validating manifest of outer_cgi-0.2.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of outer_cgi-0.2.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing outer_cgi-0.2.0
[INFO] finished frobbing outer_cgi-0.2.0
[INFO] frobbed toml for outer_cgi-0.2.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/outer_cgi/0.2.0/Cargo.toml
[INFO] started frobbing outer_cgi-0.2.0
[INFO] finished frobbing outer_cgi-0.2.0
[INFO] frobbed toml for outer_cgi-0.2.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/outer_cgi/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking outer_cgi-0.2.0 against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/outer_cgi/0.2.0:/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=forbid" "-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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 720928f58eca3a2cd7c25e573d8decb8ecc67cc3f9f8a0f6ae94331751dfe4f0
[INFO] running `"docker" "start" "-a" "720928f58eca3a2cd7c25e573d8decb8ecc67cc3f9f8a0f6ae94331751dfe4f0"`
[INFO] [stderr]     Checking outer_cgi v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/unix.rs:106:60
[INFO] [stderr]     |
[INFO] [stderr] 106 | pub fn fix_fds(env: &HashMap<String,String>) -> Option<Box<Listener>> {
[INFO] [stderr]     |                                                            ^^^^^^^^ help: use `dyn`: `dyn Listener`
[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/fcgi.rs:451:22
[INFO] [stderr]     |
[INFO] [stderr] 451 |     where H: Fn(&mut IO, HashMap<String, String>)
[INFO] [stderr]     |                      ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fcgi.rs:479:22
[INFO] [stderr]     |
[INFO] [stderr] 479 |     where H: Fn(&mut IO, HashMap<String, String>) -> io::Result<i32> {
[INFO] [stderr]     |                      ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fcgi.rs:640:28
[INFO] [stderr]     |
[INFO] [stderr] 640 | where H: 'static + Fn(&mut IO, HashMap<String, String>) -> io::Result<i32>
[INFO] [stderr]     |                            ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fcgi.rs:636:41
[INFO] [stderr]     |
[INFO] [stderr] 636 | pub fn listen_loop<H>(mut listener: Box<Listener>, handler: H,
[INFO] [stderr]     |                                         ^^^^^^^^ help: use `dyn`: `dyn Listener`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/options.rs:37:60
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn fix_fds(env: &HashMap<String,String>) -> Option<Box<Listener>> {
[INFO] [stderr]    |                                                            ^^^^^^^^ help: use `dyn`: `dyn Listener`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/options.rs:161:53
[INFO] [stderr]     |
[INFO] [stderr] 161 | pub fn handle_command_line<'a>(handlers: &mut [&mut OptionHandler],
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn OptionHandler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:223:28
[INFO] [stderr]     |
[INFO] [stderr] 223 |       H: 'static + Fn(&mut IO, HashMap<String, String>) -> io::Result<i32>
[INFO] [stderr]     |                            ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:237:28
[INFO] [stderr]     |
[INFO] [stderr] 237 |       H: 'static + Fn(&mut IO, HashMap<String, String>) -> io::Result<i32>
[INFO] [stderr]     |                            ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:296:39
[INFO] [stderr]     |
[INFO] [stderr] 296 |                     let listener: Box<Listener> =
[INFO] [stderr]     |                                       ^^^^^^^^ help: use `dyn`: `dyn Listener`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/unix.rs:106:60
[INFO] [stderr]     |
[INFO] [stderr] 106 | pub fn fix_fds(env: &HashMap<String,String>) -> Option<Box<Listener>> {
[INFO] [stderr]     |                                                            ^^^^^^^^ help: use `dyn`: `dyn Listener`
[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/fcgi.rs:451:22
[INFO] [stderr]     |
[INFO] [stderr] 451 |     where H: Fn(&mut IO, HashMap<String, String>)
[INFO] [stderr]     |                      ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fcgi.rs:479:22
[INFO] [stderr]     |
[INFO] [stderr] 479 |     where H: Fn(&mut IO, HashMap<String, String>) -> io::Result<i32> {
[INFO] [stderr]     |                      ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fcgi.rs:640:28
[INFO] [stderr]     |
[INFO] [stderr] 640 | where H: 'static + Fn(&mut IO, HashMap<String, String>) -> io::Result<i32>
[INFO] [stderr]     |                            ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fcgi.rs:636:41
[INFO] [stderr]     |
[INFO] [stderr] 636 | pub fn listen_loop<H>(mut listener: Box<Listener>, handler: H,
[INFO] [stderr]     |                                         ^^^^^^^^ help: use `dyn`: `dyn Listener`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/options.rs:37:60
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn fix_fds(env: &HashMap<String,String>) -> Option<Box<Listener>> {
[INFO] [stderr]    |                                                            ^^^^^^^^ help: use `dyn`: `dyn Listener`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/options.rs:161:53
[INFO] [stderr]     |
[INFO] [stderr] 161 | pub fn handle_command_line<'a>(handlers: &mut [&mut OptionHandler],
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn OptionHandler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:223:28
[INFO] [stderr]     |
[INFO] [stderr] 223 |       H: 'static + Fn(&mut IO, HashMap<String, String>) -> io::Result<i32>
[INFO] [stderr]     |                            ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:237:28
[INFO] [stderr]     |
[INFO] [stderr] 237 |       H: 'static + Fn(&mut IO, HashMap<String, String>) -> io::Result<i32>
[INFO] [stderr]     |                            ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:296:39
[INFO] [stderr]     |
[INFO] [stderr] 296 |                     let listener: Box<Listener> =
[INFO] [stderr]     |                                       ^^^^^^^^ help: use `dyn`: `dyn Listener`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:337:25
[INFO] [stderr]     |
[INFO] [stderr] 337 |                     let mut listener
[INFO] [stderr]     |                         ----^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:337:25
[INFO] [stderr]     |
[INFO] [stderr] 337 |                     let mut listener
[INFO] [stderr]     |                         ----^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/unix.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         nix::unistd::close(write_fd).is_ok(); // ignore error
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/unix.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             nix::unistd::close(write_fd).is_ok(); // ignore result
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/unix.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |             nix::unistd::close(read_fd).is_ok(); // ignore result
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/fcgi.rs:677:13
[INFO] [stderr]     |
[INFO] [stderr] 677 |             listen_tx.send(to_send).is_ok();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/unix.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         nix::unistd::close(write_fd).is_ok(); // ignore error
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/unix.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             nix::unistd::close(write_fd).is_ok(); // ignore result
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/unix.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |             nix::unistd::close(read_fd).is_ok(); // ignore result
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/fcgi.rs:677:13
[INFO] [stderr]     |
[INFO] [stderr] 677 |             listen_tx.send(to_send).is_ok();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:12:21
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn handler(io: &mut IO, env: HashMap<String,String>) -> io::Result<i32> {
[INFO] [stderr]    |                     ^^ help: use `dyn`: `dyn IO`
[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/main.rs:12:21
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn handler(io: &mut IO, env: HashMap<String,String>) -> io::Result<i32> {
[INFO] [stderr]    |                     ^^ help: use `dyn`: `dyn IO`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `"docker" "inspect" "720928f58eca3a2cd7c25e573d8decb8ecc67cc3f9f8a0f6ae94331751dfe4f0"`
[INFO] running `"docker" "rm" "-f" "720928f58eca3a2cd7c25e573d8decb8ecc67cc3f9f8a0f6ae94331751dfe4f0"`
[INFO] [stdout] 720928f58eca3a2cd7c25e573d8decb8ecc67cc3f9f8a0f6ae94331751dfe4f0