[INFO] cloning repository https://github.com/matklad/compilers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matklad/compilers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fcompilers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fcompilers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72d3c92c8f726c582ddf6ef8ce677559ec320035
[INFO] checking matklad/compilers against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fcompilers" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matklad/compilers on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matklad/compilers
[INFO] finished tweaking git repo https://github.com/matklad/compilers
[INFO] tweaked toml for git repo https://github.com/matklad/compilers written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/matklad/compilers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 941955d52a654ed179a4c3c0b3f03c0be8ec304b3c0ed2d4d6769c56039c9459
[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" "941955d52a654ed179a4c3c0b3f03c0be8ec304b3c0ed2d4d6769c56039c9459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "941955d52a654ed179a4c3c0b3f03c0be8ec304b3c0ed2d4d6769c56039c9459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "941955d52a654ed179a4c3c0b3f03c0be8ec304b3c0ed2d4d6769c56039c9459", kill_on_drop: false }`
[INFO] [stdout] 941955d52a654ed179a4c3c0b3f03c0be8ec304b3c0ed2d4d6769c56039c9459
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 75b10f9f8e259b5777082cd7f918d112438a21169ea30c953d8bcc4c25aa0264
[INFO] running `Command { std: "docker" "start" "-a" "75b10f9f8e259b5777082cd7f918d112438a21169ea30c953d8bcc4c25aa0264", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking data_structures v0.1.0 (/opt/rustwide/workdir/data_structures)
[INFO] [stderr]    Compiling runtime v0.1.0 (/opt/rustwide/workdir/pyt/runtime)
[INFO] [stderr]     Checking syntax v0.1.0 (/opt/rustwide/workdir/syntax)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> syntax/src/token.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type Tokenizer = Fn(&mut TokenBuilder);
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut TokenBuilder)`
[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]   --> syntax/src/token.rs:99:60
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn try_pred_token(&mut self, tokens: &[(NodeType, &Fn(char) -> bool)]) -> bool {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> syntax/src/rst/mod.rs:175:19
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub type Parser = Fn(&mut RstBuilder);
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut RstBuilder)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> syntax/src/token.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type Tokenizer = Fn(&mut TokenBuilder);
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut TokenBuilder)`
[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]   --> syntax/src/token.rs:99:60
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn try_pred_token(&mut self, tokens: &[(NodeType, &Fn(char) -> bool)]) -> bool {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> syntax/src/rst/mod.rs:175:19
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub type Parser = Fn(&mut RstBuilder);
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut RstBuilder)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking frontend v0.1.0 (/opt/rustwide/workdir/pyt/frontend)
[INFO] [stderr]     Checking super_tiny_compiler v0.1.0 (/opt/rustwide/workdir/super_tiny_compiler)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> pyt/frontend/src/tokenizer.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let pred_tokens: &[(NodeType, &Fn(char) -> bool)] = &[
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tokenize`
[INFO] [stdout]  --> pyt/frontend/src/tokenizer.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn tokenize(builder: &mut TokenBuilder) {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]  --> pyt/frontend/src/parser.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn parse(builder: &mut RstBuilder) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_stmt`
[INFO] [stdout]   --> pyt/frontend/src/parser.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn parse_stmt(builder: &mut RstBuilder) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_expr`
[INFO] [stdout]   --> pyt/frontend/src/parser.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn parse_expr(builder: &mut RstBuilder) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> super_tiny_compiler/src/rst.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let pred_tokens: &[(NodeType, &Fn(char) -> bool)] = &[
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking pyt v0.1.0 (/opt/rustwide/workdir/pyt)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> super_tiny_compiler/src/rst.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use syntax::{self, RstBuilder, TokenBuilder, NodeType, WHITESPACE};
[INFO] [stdout]   |              ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> super_tiny_compiler/src/rst.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let pred_tokens: &[(NodeType, &Fn(char) -> bool)] = &[
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[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]   --> pyt/frontend/src/tokenizer.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let pred_tokens: &[(NodeType, &Fn(char) -> bool)] = &[
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tokenize`
[INFO] [stdout]  --> pyt/frontend/src/tokenizer.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn tokenize(builder: &mut TokenBuilder) {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]  --> pyt/frontend/src/parser.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn parse(builder: &mut RstBuilder) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_stmt`
[INFO] [stdout]   --> pyt/frontend/src/parser.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn parse_stmt(builder: &mut RstBuilder) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_expr`
[INFO] [stdout]   --> pyt/frontend/src/parser.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn parse_expr(builder: &mut RstBuilder) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> super_tiny_compiler/src/codegen.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | "#.trim_left();
[INFO] [stdout]    |    ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `runtime`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "75b10f9f8e259b5777082cd7f918d112438a21169ea30c953d8bcc4c25aa0264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75b10f9f8e259b5777082cd7f918d112438a21169ea30c953d8bcc4c25aa0264", kill_on_drop: false }`
[INFO] [stdout] 75b10f9f8e259b5777082cd7f918d112438a21169ea30c953d8bcc4c25aa0264