[INFO] cloning repository https://github.com/White-Oak/rust-compilation-time-ram-regression
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/White-Oak/rust-compilation-time-ram-regression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhite-Oak%2Frust-compilation-time-ram-regression", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhite-Oak%2Frust-compilation-time-ram-regression'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9786a9b7313600445e50b566c55030594f8a0c91
[INFO] testing White-Oak/rust-compilation-time-ram-regression against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhite-Oak%2Frust-compilation-time-ram-regression" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/White-Oak/rust-compilation-time-ram-regression on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/White-Oak/rust-compilation-time-ram-regression
[INFO] finished tweaking git repo https://github.com/White-Oak/rust-compilation-time-ram-regression
[INFO] tweaked toml for git repo https://github.com/White-Oak/rust-compilation-time-ram-regression written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/White-Oak/rust-compilation-time-ram-regression already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/DanSimon/peruse.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", 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] 5379904448c861ec4d1682f8b17d677ff1d170c03401ed874f82c1c2bb44f843
[INFO] running `Command { std: "docker" "start" "-a" "5379904448c861ec4d1682f8b17d677ff1d170c03401ed874f82c1c2bb44f843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5379904448c861ec4d1682f8b17d677ff1d170c03401ed874f82c1c2bb44f843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5379904448c861ec4d1682f8b17d677ff1d170c03401ed874f82c1c2bb44f843", kill_on_drop: false }`
[INFO] [stdout] 5379904448c861ec4d1682f8b17d677ff1d170c03401ed874f82c1c2bb44f843
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] cf191e4b8fc5fc308e4d1529bf042bc0a981d4109a5df2f3d5b88e5368b40ef3
[INFO] running `Command { std: "docker" "start" "-a" "cf191e4b8fc5fc308e4d1529bf042bc0a981d4109a5df2f3d5b88e5368b40ef3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.5
[INFO] [stderr]    Compiling regex-syntax v0.2.2
[INFO] [stderr]    Compiling memchr v0.1.7
[INFO] [stderr]    Compiling aho-corasick v0.4.0
[INFO] [stderr]    Compiling regex v0.1.48
[INFO] [stderr]    Compiling peruse v0.3.0 (https://github.com/DanSimon/peruse.git#dbfc0054)
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parser.rs:115:10
[INFO] [stdout]     |
[INFO] [stdout] 115 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn token() -> Box<Parser<I=str, O=Vec<Token>>> {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 - pub fn token() -> Box<Parser<I=str, O=Vec<Token>>> {
[INFO] [stdout] 11 + pub fn token() -> Box<dyn Parser<I=str, O=Vec<Token>>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn program() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 - pub fn program() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout] 7 + pub fn program() -> Box<dyn Parser<I=[Token], O=Block>> {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn expression() -> Box<Parser<I=[Token], O=Expr>> {
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 -     fn expression() -> Box<Parser<I=[Token], O=Expr>> {
[INFO] [stdout] 9 +     fn expression() -> Box<dyn Parser<I=[Token], O=Expr>> {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |         fn code_block() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -         fn code_block() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout] 84 +         fn code_block() -> Box<dyn Parser<I=[Token], O=Block>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 |         fn if_stmt() -> Box<Parser<I=[Token], O=Statement>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 -         fn if_stmt() -> Box<Parser<I=[Token], O=Statement>> {
[INFO] [stdout] 90 +         fn if_stmt() -> Box<dyn Parser<I=[Token], O=Statement>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.09s
[INFO] running `Command { std: "docker" "inspect" "cf191e4b8fc5fc308e4d1529bf042bc0a981d4109a5df2f3d5b88e5368b40ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf191e4b8fc5fc308e4d1529bf042bc0a981d4109a5df2f3d5b88e5368b40ef3", kill_on_drop: false }`
[INFO] [stdout] cf191e4b8fc5fc308e4d1529bf042bc0a981d4109a5df2f3d5b88e5368b40ef3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] cd6a6e402a920191b7814aa56276fc299305f72e733b00e79c41083654ff4ae5
[INFO] running `Command { std: "docker" "start" "-a" "cd6a6e402a920191b7814aa56276fc299305f72e733b00e79c41083654ff4ae5", kill_on_drop: false }`
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parser.rs:115:10
[INFO] [stdout]     |
[INFO] [stdout] 115 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn token() -> Box<Parser<I=str, O=Vec<Token>>> {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 - pub fn token() -> Box<Parser<I=str, O=Vec<Token>>> {
[INFO] [stdout] 11 + pub fn token() -> Box<dyn Parser<I=str, O=Vec<Token>>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn program() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 - pub fn program() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout] 7 + pub fn program() -> Box<dyn Parser<I=[Token], O=Block>> {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn expression() -> Box<Parser<I=[Token], O=Expr>> {
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 -     fn expression() -> Box<Parser<I=[Token], O=Expr>> {
[INFO] [stdout] 9 +     fn expression() -> Box<dyn Parser<I=[Token], O=Expr>> {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |         fn code_block() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -         fn code_block() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout] 84 +         fn code_block() -> Box<dyn Parser<I=[Token], O=Block>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 |         fn if_stmt() -> Box<Parser<I=[Token], O=Statement>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 -         fn if_stmt() -> Box<Parser<I=[Token], O=Statement>> {
[INFO] [stdout] 90 +         fn if_stmt() -> Box<dyn Parser<I=[Token], O=Statement>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parser.rs:115:10
[INFO] [stdout]     |
[INFO] [stdout] 115 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn token() -> Box<Parser<I=str, O=Vec<Token>>> {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 - pub fn token() -> Box<Parser<I=str, O=Vec<Token>>> {
[INFO] [stdout] 11 + pub fn token() -> Box<dyn Parser<I=str, O=Vec<Token>>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn program() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 - pub fn program() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout] 7 + pub fn program() -> Box<dyn Parser<I=[Token], O=Block>> {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn expression() -> Box<Parser<I=[Token], O=Expr>> {
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 -     fn expression() -> Box<Parser<I=[Token], O=Expr>> {
[INFO] [stdout] 9 +     fn expression() -> Box<dyn Parser<I=[Token], O=Expr>> {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |         fn code_block() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -         fn code_block() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stdout] 84 +         fn code_block() -> Box<dyn Parser<I=[Token], O=Block>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 |         fn if_stmt() -> Box<Parser<I=[Token], O=Statement>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 -         fn if_stmt() -> Box<Parser<I=[Token], O=Statement>> {
[INFO] [stdout] 90 +         fn if_stmt() -> Box<dyn Parser<I=[Token], O=Statement>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "cd6a6e402a920191b7814aa56276fc299305f72e733b00e79c41083654ff4ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd6a6e402a920191b7814aa56276fc299305f72e733b00e79c41083654ff4ae5", kill_on_drop: false }`
[INFO] [stdout] cd6a6e402a920191b7814aa56276fc299305f72e733b00e79c41083654ff4ae5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6959999bf76b90e92236265cdc00722104cff70b2148b6b4d06b31043aaf2347
[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" "6959999bf76b90e92236265cdc00722104cff70b2148b6b4d06b31043aaf2347", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/parser.rs:115:10
[INFO] [stderr]     |
[INFO] [stderr] 115 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexer.rs:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn token() -> Box<Parser<I=str, O=Vec<Token>>> {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 11 - pub fn token() -> Box<Parser<I=str, O=Vec<Token>>> {
[INFO] [stderr] 11 + pub fn token() -> Box<dyn Parser<I=str, O=Vec<Token>>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn program() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 7 - pub fn program() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stderr] 7 + pub fn program() -> Box<dyn Parser<I=[Token], O=Block>> {
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser.rs:9:28
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn expression() -> Box<Parser<I=[Token], O=Expr>> {
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 9 -     fn expression() -> Box<Parser<I=[Token], O=Expr>> {
[INFO] [stderr] 9 +     fn expression() -> Box<dyn Parser<I=[Token], O=Expr>> {
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:84:32
[INFO] [stderr]    |
[INFO] [stderr] 84 |         fn code_block() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 84 -         fn code_block() -> Box<Parser<I=[Token], O=Block>> {
[INFO] [stderr] 84 +         fn code_block() -> Box<dyn Parser<I=[Token], O=Block>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:90:29
[INFO] [stderr]    |
[INFO] [stderr] 90 |         fn if_stmt() -> Box<Parser<I=[Token], O=Statement>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 90 -         fn if_stmt() -> Box<Parser<I=[Token], O=Statement>> {
[INFO] [stderr] 90 +         fn if_stmt() -> Box<dyn Parser<I=[Token], O=Statement>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `parser` (lib) generated 6 warnings
[INFO] [stderr] warning: `parser` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parser-f84ff8f0ffc27f35)
[INFO] [stderr]    Doc-tests parser
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> /opt/rustwide/workdir/src/parser.rs:115:10
[INFO] [stderr]     |
[INFO] [stderr] 115 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "6959999bf76b90e92236265cdc00722104cff70b2148b6b4d06b31043aaf2347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6959999bf76b90e92236265cdc00722104cff70b2148b6b4d06b31043aaf2347", kill_on_drop: false }`
[INFO] [stdout] 6959999bf76b90e92236265cdc00722104cff70b2148b6b4d06b31043aaf2347