[INFO] fetching crate hamlrs 0.4.3... [INFO] checking hamlrs-0.4.3 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744 [INFO] extracting crate hamlrs 0.4.3 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate hamlrs 0.4.3 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 crates.io crate hamlrs 0.4.3 [INFO] finished tweaking crates.io crate hamlrs 0.4.3 [INFO] tweaked toml for crates.io crate hamlrs 0.4.3 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e5c01b515031c123b469deffaf361ba84cfd171cb99f8d2c2f9b1b6c1e38e133 [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" "e5c01b515031c123b469deffaf361ba84cfd171cb99f8d2c2f9b1b6c1e38e133", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5c01b515031c123b469deffaf361ba84cfd171cb99f8d2c2f9b1b6c1e38e133", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5c01b515031c123b469deffaf361ba84cfd171cb99f8d2c2f9b1b6c1e38e133", kill_on_drop: false }` [INFO] [stdout] e5c01b515031c123b469deffaf361ba84cfd171cb99f8d2c2f9b1b6c1e38e133 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7d061b29d2efbe0df7cfa4f15dfaf49a196cb488b2d97b7628f2d78c483f2a40 [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" "7d061b29d2efbe0df7cfa4f15dfaf49a196cb488b2d97b7628f2d78c483f2a40", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking hamlrs v0.4.3 (/opt/rustwide/workdir) [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking serde_json v1.0.64 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stdout] warning: value assigned to `token` is never read [INFO] [stdout] --> src/parser.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut token: Option<&Token> = None; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `class` is never read [INFO] [stdout] --> src/parser.rs:86:33 [INFO] [stdout] | [INFO] [stdout] 86 | let mut class = String::new(); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `id` is never read [INFO] [stdout] --> src/parser.rs:101:33 [INFO] [stdout] | [INFO] [stdout] 101 | let mut id = String::new(); [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `value` is never read [INFO] [stdout] --> src/scanner.rs:68:25 [INFO] [stdout] | [INFO] [stdout] 68 | let mut value: Option = None; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/parser.rs:140:49 [INFO] [stdout] | [INFO] [stdout] 140 | ... Some(tok) => panic!(format!("Expecting Text but found {:?}", tok)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 140 | Some(tok) => panic!("Expecting Text but found {:?}", tok), [INFO] [stdout] | -- -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message contains a brace [INFO] [stdout] --> src/parser.rs:164:50 [INFO] [stdout] | [INFO] [stdout] 164 | ... panic!("Unexpected \"{\" while parsing"); [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: this message is not used as a format string, but will be in Rust 2021 [INFO] [stdout] help: add a "{}" format string to use the message literally [INFO] [stdout] | [INFO] [stdout] 164 | panic!("{}", "Unexpected \"{\" while parsing"); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/parser.rs:167:33 [INFO] [stdout] | [INFO] [stdout] 167 | t => panic!(format!("Unsupported feature: {:?}", t)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 167 | t => panic!("Unsupported feature: {:?}", t), [INFO] [stdout] | -- -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/parser.rs:184:49 [INFO] [stdout] | [INFO] [stdout] 184 | ... Some(tok) => panic!(format!("Expected an identifier after a colon when parsing attributes but found {:?}", tok)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 184 | Some(tok) => panic!("Expected an identifier after a colon when parsing attributes but found {:?}", tok), [INFO] [stdout] | -- -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/parser.rs:206:65 [INFO] [stdout] | [INFO] [stdout] 206 | ... Some(tok) => panic!(format!("Unexpected token {:?} in attribute array.", tok )), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 206 | Some(tok) => panic!("Unexpected token {:?} in attribute array.", tok ), [INFO] [stdout] | -- -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/parser.rs:212:53 [INFO] [stdout] | [INFO] [stdout] 212 | ... Some(tok) => panic!(format!("Expecting value after attribute id in attributes but found {:?}", tok)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 212 | Some(tok) => panic!("Expecting value after attribute id in attributes but found {:?}", tok), [INFO] [stdout] | -- -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking rand_xoshiro v0.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking bstr v0.2.15 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Compiling cast v0.2.5 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking criterion-plot v0.3.1 [INFO] [stderr] Checking crossbeam-epoch v0.9.3 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rayon-core v1.9.0 [INFO] [stderr] Checking criterion v0.2.11 [INFO] [stdout] warning: value assigned to `token` is never read [INFO] [stdout] --> src/parser.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut token: Option<&Token> = None; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `class` is never read [INFO] [stdout] --> src/parser.rs:86:33 [INFO] [stdout] | [INFO] [stdout] 86 | let mut class = String::new(); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `id` is never read [INFO] [stdout] --> src/parser.rs:101:33 [INFO] [stdout] | [INFO] [stdout] 101 | let mut id = String::new(); [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `value` is never read [INFO] [stdout] --> src/scanner.rs:68:25 [INFO] [stdout] | [INFO] [stdout] 68 | let mut value: Option = None; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/parser.rs:140:49 [INFO] [stdout] | [INFO] [stdout] 140 | ... Some(tok) => panic!(format!("Expecting Text but found {:?}", tok)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 140 | Some(tok) => panic!("Expecting Text but found {:?}", tok), [INFO] [stdout] | -- -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message contains a brace [INFO] [stdout] --> src/parser.rs:164:50 [INFO] [stdout] | [INFO] [stdout] 164 | ... panic!("Unexpected \"{\" while parsing"); [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: this message is not used as a format string, but will be in Rust 2021 [INFO] [stdout] help: add a "{}" format string to use the message literally [INFO] [stdout] | [INFO] [stdout] 164 | panic!("{}", "Unexpected \"{\" while parsing"); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/parser.rs:167:33 [INFO] [stdout] | [INFO] [stdout] 167 | t => panic!(format!("Unsupported feature: {:?}", t)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 167 | t => panic!("Unsupported feature: {:?}", t), [INFO] [stdout] | -- -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/parser.rs:184:49 [INFO] [stdout] | [INFO] [stdout] 184 | ... Some(tok) => panic!(format!("Expected an identifier after a colon when parsing attributes but found {:?}", tok)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 184 | Some(tok) => panic!("Expected an identifier after a colon when parsing attributes but found {:?}", tok), [INFO] [stdout] | -- -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/parser.rs:206:65 [INFO] [stdout] | [INFO] [stdout] 206 | ... Some(tok) => panic!(format!("Unexpected token {:?} in attribute array.", tok )), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 206 | Some(tok) => panic!("Unexpected token {:?} in attribute array.", tok ), [INFO] [stdout] | -- -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/parser.rs:212:53 [INFO] [stdout] | [INFO] [stdout] 212 | ... Some(tok) => panic!(format!("Expecting value after attribute id in attributes but found {:?}", tok)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 212 | Some(tok) => panic!("Expecting value after attribute id in attributes but found {:?}", tok), [INFO] [stdout] | -- -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.93s [INFO] running `Command { std: "docker" "inspect" "7d061b29d2efbe0df7cfa4f15dfaf49a196cb488b2d97b7628f2d78c483f2a40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d061b29d2efbe0df7cfa4f15dfaf49a196cb488b2d97b7628f2d78c483f2a40", kill_on_drop: false }` [INFO] [stdout] 7d061b29d2efbe0df7cfa4f15dfaf49a196cb488b2d97b7628f2d78c483f2a40