[INFO] updating cached repository prevy/prevy-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/prevy/prevy-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/prevy/prevy-rust" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/prevy/prevy-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/prevy/prevy-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/prevy/prevy-rust" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/prevy/prevy-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/prevy/prevy-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b8e392dc545f284440a4ddda2bdf23e78ec83cc4
[INFO] sha for GitHub repo prevy/prevy-rust: b8e392dc545f284440a4ddda2bdf23e78ec83cc4
[INFO] validating manifest of prevy/prevy-rust 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 prevy/prevy-rust 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 prevy/prevy-rust
[INFO] finished frobbing prevy/prevy-rust
[INFO] frobbed toml for prevy/prevy-rust written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/prevy/prevy-rust/Cargo.toml
[INFO] started frobbing prevy/prevy-rust
[INFO] finished frobbing prevy/prevy-rust
[INFO] frobbed toml for prevy/prevy-rust written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/prevy/prevy-rust/Cargo.toml
[INFO] crate prevy/prevy-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/prevy/prevy-rust/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" "+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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking prevy/prevy-rust against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/prevy/prevy-rust:/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] ad0e7fd3d5efd69e186b18f224b8189906024fc7107cb29921dbf0115ca575c9
[INFO] running `"docker" "start" "-a" "ad0e7fd3d5efd69e186b18f224b8189906024fc7107cb29921dbf0115ca575c9"`
[INFO] [stderr]     Checking prevy v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/commands/update.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn run(repos: Vec<Box<Repo + Send>>) -> Box<Fn() -> ()> {
[INFO] [stderr]    |                           ^^^^^^^^^^^ help: use `dyn`: `dyn Repo + Send`
[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/commands/update.rs:11:49
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn run(repos: Vec<Box<Repo + Send>>) -> Box<Fn() -> ()> {
[INFO] [stderr]    |                                                 ^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/commands/mod.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn run(repos: Vec<Box<Repo + Send>>) -> Box<Fn() -> ()>;
[INFO] [stderr]   |                           ^^^^^^^^^^^ help: use `dyn`: `dyn Repo + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/commands/mod.rs:6:49
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn run(repos: Vec<Box<Repo + Send>>) -> Box<Fn() -> ()>;
[INFO] [stderr]   |                                                 ^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/context/workspace.rs:24:24
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub repos: Vec<Box<Repo>>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:62:32
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn clone_box(&self) -> Box<Repo>;
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:68:32
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn clone_box(&self) -> Box<Repo> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 | impl fmt::Debug for Repo {
[INFO] [stderr]    |                     ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:87:20
[INFO] [stderr]    |
[INFO] [stderr] 87 | impl Clone for Box<Repo> {
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:88:28
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn clone(&self) -> Box<Repo> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:97:54
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub fn from_hash(hash: (&Yaml, &Yaml)) -> Result<Box<Repo>> {
[INFO] [stderr]    |                                                      ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/core/constants.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     var.trim_left_matches(VAR_PREFIX).to_lowercase().to_string()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/commands/update.rs:13:18
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let (tx, rx) = channel();
[INFO] [stderr]    |                  ^^ help: consider prefixing with an underscore: `_rx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Update`
[INFO] [stderr]  --> src/commands/update.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Update;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/commands/update.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn run(repos: Vec<Box<Repo + Send>>) -> Box<Fn() -> ()> {
[INFO] [stderr]    |                           ^^^^^^^^^^^ help: use `dyn`: `dyn Repo + Send`
[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/commands/update.rs:11:49
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn run(repos: Vec<Box<Repo + Send>>) -> Box<Fn() -> ()> {
[INFO] [stderr]    |                                                 ^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/commands/mod.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn run(repos: Vec<Box<Repo + Send>>) -> Box<Fn() -> ()>;
[INFO] [stderr]   |                           ^^^^^^^^^^^ help: use `dyn`: `dyn Repo + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/commands/mod.rs:6:49
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn run(repos: Vec<Box<Repo + Send>>) -> Box<Fn() -> ()>;
[INFO] [stderr]   |                                                 ^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/context/workspace.rs:24:24
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub repos: Vec<Box<Repo>>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:62:32
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn clone_box(&self) -> Box<Repo>;
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:68:32
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn clone_box(&self) -> Box<Repo> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 | impl fmt::Debug for Repo {
[INFO] [stderr]    |                     ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:87:20
[INFO] [stderr]    |
[INFO] [stderr] 87 | impl Clone for Box<Repo> {
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:88:28
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn clone(&self) -> Box<Repo> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vcs/mod.rs:97:54
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub fn from_hash(hash: (&Yaml, &Yaml)) -> Result<Box<Repo>> {
[INFO] [stderr]    |                                                      ^^^^ help: use `dyn`: `dyn Repo`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/core/constants.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     var.trim_left_matches(VAR_PREFIX).to_lowercase().to_string()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/commands/update.rs:13:18
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let (tx, rx) = channel();
[INFO] [stderr]    |                  ^^ help: consider prefixing with an underscore: `_rx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Update`
[INFO] [stderr]  --> src/commands/update.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Update;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "ad0e7fd3d5efd69e186b18f224b8189906024fc7107cb29921dbf0115ca575c9"`
[INFO] running `"docker" "rm" "-f" "ad0e7fd3d5efd69e186b18f224b8189906024fc7107cb29921dbf0115ca575c9"`
[INFO] [stdout] ad0e7fd3d5efd69e186b18f224b8189906024fc7107cb29921dbf0115ca575c9