[INFO] fetching crate hm 0.7.5...
[INFO] checking hm-0.7.5 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate hm 0.7.5 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate hm 0.7.5
[INFO] finished tweaking crates.io crate hm 0.7.5
[INFO] tweaked toml for crates.io crate hm 0.7.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hm 0.7.5 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hm 0.7.5 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console v0.15.2
[INFO] [stderr]   Downloaded solvent v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3646fae2c29e69a6ea5f76b4e85ae4160c741da7c9803e70557e205a80862660
[INFO] running `Command { std: "docker" "start" "-a" "3646fae2c29e69a6ea5f76b4e85ae4160c741da7c9803e70557e205a80862660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3646fae2c29e69a6ea5f76b4e85ae4160c741da7c9803e70557e205a80862660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3646fae2c29e69a6ea5f76b4e85ae4160c741da7c9803e70557e205a80862660", kill_on_drop: false }`
[INFO] [stdout] 3646fae2c29e69a6ea5f76b4e85ae4160c741da7c9803e70557e205a80862660
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de4fc500b2cd7b5e0330c6265bc1ad3bf0aa5209d7bc8ff2492fea58ad1c6287
[INFO] running `Command { std: "docker" "start" "-a" "de4fc500b2cd7b5e0330c6265bc1ad3bf0aa5209d7bc8ff2492fea58ad1c6287", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking console v0.15.2
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking iana-time-zone v0.1.47
[INFO] [stderr]     Checking shellexpand v2.1.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking solvent v0.8.3
[INFO] [stderr]     Checking symlink v0.1.0
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]    Compiling sys-info v0.9.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking rayon-core v1.9.3
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking rayon v1.5.3
[INFO] [stderr]     Checking simplelog v0.12.0
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_json v1.0.81
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking hm v0.7.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/lib/mod.rs:115:18
[INFO] [stdout]     |
[INFO] [stdout] 115 |         for d in self.dependencies.get(&i) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 115 -         for d in self.dependencies.get(&i) {
[INFO] [stdout] 115 +         while let Some(d) = self.dependencies.get(&i) {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 115 -         for d in self.dependencies.get(&i) {
[INFO] [stdout] 115 +         if let Some(d) = self.dependencies.get(&i) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read `benches/benchy_bench.rs`: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hm` (bench "benchy_bench") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/lib/mod.rs:115:18
[INFO] [stdout]     |
[INFO] [stdout] 115 |         for d in self.dependencies.get(&i) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 115 -         for d in self.dependencies.get(&i) {
[INFO] [stdout] 115 +         while let Some(d) = self.dependencies.get(&i) {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 115 -         for d in self.dependencies.get(&i) {
[INFO] [stdout] 115 +         if let Some(d) = self.dependencies.get(&i) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "de4fc500b2cd7b5e0330c6265bc1ad3bf0aa5209d7bc8ff2492fea58ad1c6287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4fc500b2cd7b5e0330c6265bc1ad3bf0aa5209d7bc8ff2492fea58ad1c6287", kill_on_drop: false }`
[INFO] [stdout] de4fc500b2cd7b5e0330c6265bc1ad3bf0aa5209d7bc8ff2492fea58ad1c6287