[INFO] fetching crate const-str 0.6.2...
[INFO] checking const-str-0.6.2 against try#1d0e7c032bf9b905a3165592072b5cc63c491d50 for pr-133502-5
[INFO] extracting crate const-str 0.6.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate const-str 0.6.2 on toolchain 1d0e7c032bf9b905a3165592072b5cc63c491d50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate const-str 0.6.2
[INFO] finished tweaking crates.io crate const-str 0.6.2
[INFO] tweaked toml for crates.io crate const-str 0.6.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate const-str 0.6.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9b7a53ca6cb472a6c8b53c5340b5c0836e68c2ca8ef3b50bcd32cc3e34089f2
[INFO] running `Command { std: "docker" "start" "-a" "e9b7a53ca6cb472a6c8b53c5340b5c0836e68c2ca8ef3b50bcd32cc3e34089f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9b7a53ca6cb472a6c8b53c5340b5c0836e68c2ca8ef3b50bcd32cc3e34089f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9b7a53ca6cb472a6c8b53c5340b5c0836e68c2ca8ef3b50bcd32cc3e34089f2", kill_on_drop: false }`
[INFO] [stdout] e9b7a53ca6cb472a6c8b53c5340b5c0836e68c2ca8ef3b50bcd32cc3e34089f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cc228ae9819257247db384e005b6526a50da2d283d9b2c2ff89fdcc3914a87a
[INFO] running `Command { std: "docker" "start" "-a" "6cc228ae9819257247db384e005b6526a50da2d283d9b2c2ff89fdcc3914a87a", kill_on_drop: false }`
[INFO] [stderr]     Checking heck v0.5.0
[INFO] [stderr]     Checking const-str v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/str.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         core::mem::transmute(x)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `char::from_u32_unchecked(x)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider `char::from_u32(…).unwrap()`
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/str.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         core::mem::transmute(x)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `char::from_u32_unchecked(x)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider `char::from_u32(…).unwrap()`
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.90s
[INFO] running `Command { std: "docker" "inspect" "6cc228ae9819257247db384e005b6526a50da2d283d9b2c2ff89fdcc3914a87a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc228ae9819257247db384e005b6526a50da2d283d9b2c2ff89fdcc3914a87a", kill_on_drop: false }`
[INFO] [stdout] 6cc228ae9819257247db384e005b6526a50da2d283d9b2c2ff89fdcc3914a87a