[INFO] fetching crate rmw_str 0.0.7...
[INFO] checking rmw_str-0.0.7 against master#092a284ba0421695f2032c947765429fd7095796 for pr-139763
[INFO] extracting crate rmw_str 0.0.7 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate rmw_str 0.0.7 on toolchain 092a284ba0421695f2032c947765429fd7095796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+092a284ba0421695f2032c947765429fd7095796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rmw_str 0.0.7
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rmw_str 0.0.7
[INFO] tweaked toml for crates.io crate rmw_str 0.0.7 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate rmw_str 0.0.7 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" "+092a284ba0421695f2032c947765429fd7095796" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+092a284ba0421695f2032c947765429fd7095796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b665ed1f456202e99cdabad4cbec94115b0fb18c0933c2aa0717db8fa9d5b511
[INFO] running `Command { std: "docker" "start" "-a" "b665ed1f456202e99cdabad4cbec94115b0fb18c0933c2aa0717db8fa9d5b511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b665ed1f456202e99cdabad4cbec94115b0fb18c0933c2aa0717db8fa9d5b511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b665ed1f456202e99cdabad4cbec94115b0fb18c0933c2aa0717db8fa9d5b511", kill_on_drop: false }`
[INFO] [stdout] b665ed1f456202e99cdabad4cbec94115b0fb18c0933c2aa0717db8fa9d5b511
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+092a284ba0421695f2032c947765429fd7095796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40b5ffb4fb225d25c571eb2547758740e1fb8475eebb90a55381ba6f260bcbcc
[INFO] running `Command { std: "docker" "start" "-a" "40b5ffb4fb225d25c571eb2547758740e1fb8475eebb90a55381ba6f260bcbcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.55
[INFO] [stderr]     Checking rmw_str v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/lib.rs:69:16
[INFO] [stdout]    |
[INFO] [stdout] 69 |             if let Ok(i) = i.parse() {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 | ImplStr!(String);
[INFO] [stdout]    | ---------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `ImplStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/lib.rs:69:16
[INFO] [stdout]    |
[INFO] [stdout] 69 |             if let Ok(i) = i.parse() {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 | ImplStr!(String);
[INFO] [stdout]    | ---------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `ImplStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "40b5ffb4fb225d25c571eb2547758740e1fb8475eebb90a55381ba6f260bcbcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40b5ffb4fb225d25c571eb2547758740e1fb8475eebb90a55381ba6f260bcbcc", kill_on_drop: false }`
[INFO] [stdout] 40b5ffb4fb225d25c571eb2547758740e1fb8475eebb90a55381ba6f260bcbcc