[INFO] cloning repository https://github.com/piyushrungta25/bf-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/piyushrungta25/bf-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiyushrungta25%2Fbf-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiyushrungta25%2Fbf-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4e8989c96c32f0e22c0236338dc3b5a315a9c39
[INFO] testing piyushrungta25/bf-rs against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiyushrungta25%2Fbf-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/piyushrungta25/bf-rs on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/piyushrungta25/bf-rs
[INFO] finished tweaking git repo https://github.com/piyushrungta25/bf-rs
[INFO] tweaked toml for git repo https://github.com/piyushrungta25/bf-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/piyushrungta25/bf-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.98
[INFO] [stderr]   Downloaded predicates v1.0.1
[INFO] [stderr]   Downloaded csv-core v0.1.6
[INFO] [stderr]   Downloaded serde_derive v1.0.98
[INFO] [stderr]   Downloaded libc v0.2.61
[INFO] [stderr]   Downloaded bstr v0.2.7
[INFO] [stderr]   Downloaded csv v1.1.1
[INFO] [stderr]   Downloaded tinytemplate v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5438db95aaaca049648cb9efd796df22781535ec6705e265f2f0c67c374e2656
[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" "5438db95aaaca049648cb9efd796df22781535ec6705e265f2f0c67c374e2656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5438db95aaaca049648cb9efd796df22781535ec6705e265f2f0c67c374e2656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5438db95aaaca049648cb9efd796df22781535ec6705e265f2f0c67c374e2656", kill_on_drop: false }`
[INFO] [stdout] 5438db95aaaca049648cb9efd796df22781535ec6705e265f2f0c67c374e2656
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--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] af851a315c3db04e80dbdde95a70de859426f7dd38cf30cc95154ac7d455faf4
[INFO] running `Command { std: "docker" "start" "-a" "af851a315c3db04e80dbdde95a70de859426f7dd38cf30cc95154ac7d455faf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling bfrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:17:42
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn dump(&self) -> Result<(), 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "af851a315c3db04e80dbdde95a70de859426f7dd38cf30cc95154ac7d455faf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af851a315c3db04e80dbdde95a70de859426f7dd38cf30cc95154ac7d455faf4", kill_on_drop: false }`
[INFO] [stdout] af851a315c3db04e80dbdde95a70de859426f7dd38cf30cc95154ac7d455faf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] 542f4038f2b75d51b0077acf7c7e7ef65948bd861d707ff59191269b5a38c730
[INFO] running `Command { std: "docker" "start" "-a" "542f4038f2b75d51b0077acf7c7e7ef65948bd861d707ff59191269b5a38c730", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.61
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling predicates-core v1.0.0
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:17:42
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn dump(&self) -> Result<(), 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling predicates-tree v1.0.0
[INFO] [stderr]    Compiling predicates v1.0.1
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling bstr v0.2.7
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling tinytemplate v1.0.2
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling assert_cmd v0.11.1
[INFO] [stderr]    Compiling bfrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:17:42
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn dump(&self) -> Result<(), 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]  --> tests/cli.rs:6:68
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn test_helper(file_name: &str, has_input: bool) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                                                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::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]   --> tests/cli.rs:24:41
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn test_hello_world() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:29:39
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn test_bang_bang() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:34:40
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn test_99_bottles() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn test_mandelbrot() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:44:35
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn test_quine() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:49:43
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn test_square_number() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:54:33
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn test_cat() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:59:36
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn test_factor() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/parser.rs:3:75
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn test_helper(input: &'static str, output: Vec<Token>) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                                                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::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]   --> tests/parser.rs:10:38
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn test_parser_1() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:15:38
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn test_parser_2() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:20:38
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn test_parser_3() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:25:38
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn test_parser_4() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:30:38
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn test_parser_5() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:35:38
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn test_parser_6() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:40:38
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn test_parser_7() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:45:38
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn test_parser_8() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:61:38
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn test_parser_9() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:66:39
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn test_parser_10() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:71:39
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn test_parser_11() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `Command { std: "docker" "inspect" "542f4038f2b75d51b0077acf7c7e7ef65948bd861d707ff59191269b5a38c730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "542f4038f2b75d51b0077acf7c7e7ef65948bd861d707ff59191269b5a38c730", kill_on_drop: false }`
[INFO] [stdout] 542f4038f2b75d51b0077acf7c7e7ef65948bd861d707ff59191269b5a38c730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] 696a6a12948456a0961a373719b8dfb439631476c8b98016234d06b9516af133
[INFO] running `Command { std: "docker" "start" "-a" "696a6a12948456a0961a373719b8dfb439631476c8b98016234d06b9516af133", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:17:42
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn dump(&self) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:17:42
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn dump(&self) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> tests/cli.rs:6:68
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn test_helper(file_name: &str, has_input: bool) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                                                                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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]   --> tests/cli.rs:24:41
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn test_hello_world() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:29:39
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn test_bang_bang() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:34:40
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn test_99_bottles() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] running 0 tests
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] 
[INFO] [stderr]   --> tests/cli.rs:39:40
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 39 | fn test_mandelbrot() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:44:35
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn test_quine() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:49:43
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn test_square_number() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:54:33
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn test_cat() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:59:36
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn test_factor() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> tests/parser.rs:3:75
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn test_helper(input: &'static str, output: Vec<Token>) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                                                                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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]   --> tests/parser.rs:10:38
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn test_parser_1() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:15:38
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn test_parser_2() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:20:38
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn test_parser_3() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:25:38
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn test_parser_4() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:30:38
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn test_parser_5() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:35:38
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn test_parser_6() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:40:38
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn test_parser_7() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:45:38
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn test_parser_8() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:61:38
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn test_parser_9() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:66:39
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn test_parser_10() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:71:39
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn test_parser_11() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bfrs-a1ae39050f025e05
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bfrs-916b0da6cdba034c
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cli-408661289d7f320d
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_bang_bang ... ok
[INFO] [stdout] test test_hello_world ... ok
[INFO] [stdout] test test_cat ... ok
[INFO] [stdout] test test_factor ... ok
[INFO] [stdout] test test_quine ... ok
[INFO] [stdout] test test_square_number ... ok
[INFO] [stdout] test test_99_bottles ... ok
[INFO] [stdout] test test_mandelbrot ... test test_mandelbrot has been running for over 60 seconds
[INFO] [stdout] test test_mandelbrot ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 325.69s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/parser-3e359715896337e0
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test_parser_1 ... ok
[INFO] [stdout] test test_parser_10 ... ok
[INFO] [stdout] test test_parser_11 ... ok
[INFO] [stdout] test test_parser_2 ... ok
[INFO] [stdout] test test_parser_3 ... ok
[INFO] [stdout] test test_parser_4 ... ok
[INFO] [stdout] test test_parser_5 ... ok
[INFO] [stdout] test test_parser_6 ... ok
[INFO] [stdout] test test_parser_7 ... ok
[INFO] [stdout] test test_parser_8 ... ok
[INFO] [stdout] test test_parser_9 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bfrs
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "696a6a12948456a0961a373719b8dfb439631476c8b98016234d06b9516af133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "696a6a12948456a0961a373719b8dfb439631476c8b98016234d06b9516af133", kill_on_drop: false }`
[INFO] [stdout] 696a6a12948456a0961a373719b8dfb439631476c8b98016234d06b9516af133