[INFO] fetching crate fastmod 0.4.1...
[INFO] checking fastmod-0.4.1 against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] extracting crate fastmod 0.4.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate fastmod 0.4.1 on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fastmod 0.4.1
[INFO] finished tweaking crates.io crate fastmod 0.4.1
[INFO] tweaked toml for crates.io crate fastmod 0.4.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate fastmod 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded grep-matcher v0.1.4
[INFO] [stderr]   Downloaded grep-regex v0.1.8
[INFO] [stderr]   Downloaded grep-searcher v0.1.7
[INFO] [stderr]   Downloaded grep v0.2.7
[INFO] [stderr]   Downloaded grep-printer v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 639579a3bc6a234efb836eb17d5eb42e73fdcf201f709732a06a9e2714b5e4e5
[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" "639579a3bc6a234efb836eb17d5eb42e73fdcf201f709732a06a9e2714b5e4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "639579a3bc6a234efb836eb17d5eb42e73fdcf201f709732a06a9e2714b5e4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "639579a3bc6a234efb836eb17d5eb42e73fdcf201f709732a06a9e2714b5e4e5", kill_on_drop: false }`
[INFO] [stdout] 639579a3bc6a234efb836eb17d5eb42e73fdcf201f709732a06a9e2714b5e4e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c52929e1182763ad364b217320963fea40dd1d938a5d10d30c71e9d99130f08
[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" "0c52929e1182763ad364b217320963fea40dd1d938a5d10d30c71e9d99130f08", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking rprompt v1.0.5
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking encoding_rs v0.8.24
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking grep-matcher v0.1.4
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking mio v0.7.3
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking grep-searcher v0.1.7
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking grep-regex v0.1.8
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking grep-cli v0.1.5
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking grep-printer v0.1.5
[INFO] [stderr]     Checking grep v0.2.7
[INFO] [stderr]     Checking fastmod v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:468:13
[INFO] [stdout]     |
[INFO] [stdout] 468 | /             format!(
[INFO] [stdout] 469 | |                 "changeset too long: {} > max({}, {})",
[INFO] [stdout] 470 | |                 diffs.len(),
[INFO] [stdout] 471 | |                 lines_to_print,
[INFO] [stdout] 472 | |                 size_of_diff
[INFO] [stdout] 473 | |             )
[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] 468 |             
[INFO] [stdout] 469 |                 "changeset too long: {} > max({}, {})",
[INFO] [stdout] 470 |                 diffs.len(),
[INFO] [stdout] 471 |                 lines_to_print,
[INFO] [stdout] 472 |                 size_of_diff
[INFO] [stdout] 473 |             
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:468:13
[INFO] [stdout]     |
[INFO] [stdout] 468 | /             format!(
[INFO] [stdout] 469 | |                 "changeset too long: {} > max({}, {})",
[INFO] [stdout] 470 | |                 diffs.len(),
[INFO] [stdout] 471 | |                 lines_to_print,
[INFO] [stdout] 472 | |                 size_of_diff
[INFO] [stdout] 473 | |             )
[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] 468 |             
[INFO] [stdout] 469 |                 "changeset too long: {} > max({}, {})",
[INFO] [stdout] 470 |                 diffs.len(),
[INFO] [stdout] 471 |                 lines_to_print,
[INFO] [stdout] 472 |                 size_of_diff
[INFO] [stdout] 473 |             
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.91s
[INFO] running `Command { std: "docker" "inspect" "0c52929e1182763ad364b217320963fea40dd1d938a5d10d30c71e9d99130f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c52929e1182763ad364b217320963fea40dd1d938a5d10d30c71e9d99130f08", kill_on_drop: false }`
[INFO] [stdout] 0c52929e1182763ad364b217320963fea40dd1d938a5d10d30c71e9d99130f08