[INFO] crate dash 0.1.0 is already in cache
[INFO] checking dash-0.1.0 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] extracting crate dash 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate dash 0.1.0 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dash 0.1.0
[INFO] finished tweaking crates.io crate dash 0.1.0
[INFO] tweaked toml for crates.io crate dash 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3564f403ed4480d79694c0ca6907d77c68e45e06ac1c74a5fc70dabde7c8529
[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" "e3564f403ed4480d79694c0ca6907d77c68e45e06ac1c74a5fc70dabde7c8529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3564f403ed4480d79694c0ca6907d77c68e45e06ac1c74a5fc70dabde7c8529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3564f403ed4480d79694c0ca6907d77c68e45e06ac1c74a5fc70dabde7c8529", kill_on_drop: false }`
[INFO] [stdout] e3564f403ed4480d79694c0ca6907d77c68e45e06ac1c74a5fc70dabde7c8529
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 0a04ccdfbf7bfdc13208be59ae9e4aba2533845ce40f2cf702fbe357179b3540
[INFO] running `Command { std: "docker" "start" "-a" "0a04ccdfbf7bfdc13208be59ae9e4aba2533845ce40f2cf702fbe357179b3540", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking unicode-segmentation v0.1.3
[INFO] [stderr]     Checking term_size v0.2.3
[INFO] [stderr]     Checking clap v2.19.3
[INFO] [stderr]     Checking dash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:158:39
[INFO] [stdout]     |
[INFO] [stdout] 158 | fn read_stdin() -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:170:35
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn pretty() -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:177:52
[INFO] [stdout]     |
[INFO] [stdout] 177 | fn pick(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:191:51
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn get(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:202:54
[INFO] [stdout]     |
[INFO] [stdout] 202 | fn filter(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:229:52
[INFO] [stdout]     |
[INFO] [stdout] 229 | fn some(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:256:53
[INFO] [stdout]     |
[INFO] [stdout] 256 | fn every(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:283:52
[INFO] [stdout]     |
[INFO] [stdout] 283 | fn find(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:313:55
[INFO] [stdout]     |
[INFO] [stdout] 313 | fn length(_matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:321:110
[INFO] [stdout]     |
[INFO] [stdout] 321 | fn prepare_array_op(matches: ArgMatches, command_name: &str) -> Result<(String, String, parsers::Value), Box<Error>> {
[INFO] [stdout]     |                                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:330:58
[INFO] [stdout]     |
[INFO] [stdout] 330 | fn prepare_array_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stdout]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:341:59
[INFO] [stdout]     |
[INFO] [stdout] 341 | fn prepare_object_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stdout]     |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:370:48
[INFO] [stdout]     |
[INFO] [stdout] 370 | fn read(matches: ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:384:54
[INFO] [stdout]     |
[INFO] [stdout] 384 | fn read_file(filename: String) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:158:39
[INFO] [stdout]     |
[INFO] [stdout] 158 | fn read_stdin() -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:170:35
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn pretty() -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:177:52
[INFO] [stdout]     |
[INFO] [stdout] 177 | fn pick(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:191:51
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn get(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:202:54
[INFO] [stdout]     |
[INFO] [stdout] 202 | fn filter(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:229:52
[INFO] [stdout]     |
[INFO] [stdout] 229 | fn some(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:256:53
[INFO] [stdout]     |
[INFO] [stdout] 256 | fn every(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:283:52
[INFO] [stdout]     |
[INFO] [stdout] 283 | fn find(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:313:55
[INFO] [stdout]     |
[INFO] [stdout] 313 | fn length(_matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:321:110
[INFO] [stdout]     |
[INFO] [stdout] 321 | fn prepare_array_op(matches: ArgMatches, command_name: &str) -> Result<(String, String, parsers::Value), Box<Error>> {
[INFO] [stdout]     |                                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:330:58
[INFO] [stdout]     |
[INFO] [stdout] 330 | fn prepare_array_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stdout]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:341:59
[INFO] [stdout]     |
[INFO] [stdout] 341 | fn prepare_object_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stdout]     |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:370:48
[INFO] [stdout]     |
[INFO] [stdout] 370 | fn read(matches: ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:384:54
[INFO] [stdout]     |
[INFO] [stdout] 384 | fn read_file(filename: String) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 14.17s
[INFO] running `Command { std: "docker" "inspect" "0a04ccdfbf7bfdc13208be59ae9e4aba2533845ce40f2cf702fbe357179b3540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a04ccdfbf7bfdc13208be59ae9e4aba2533845ce40f2cf702fbe357179b3540", kill_on_drop: false }`
[INFO] [stdout] 0a04ccdfbf7bfdc13208be59ae9e4aba2533845ce40f2cf702fbe357179b3540