[INFO] fetching crate inv 0.2.0...
[INFO] checking inv-0.2.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate inv 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate inv 0.2.0
[INFO] finished tweaking crates.io crate inv 0.2.0
[INFO] tweaked toml for crates.io crate inv 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate inv 0.2.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate inv 0.2.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inv_manager v0.2.0
[INFO] [stderr]   Downloaded cc v1.0.47
[INFO] [stderr]   Downloaded regex-automata v0.1.8
[INFO] [stderr]   Downloaded csv-core v0.1.6
[INFO] [stderr]   Downloaded bstr v0.2.8
[INFO] [stderr]   Downloaded csv v1.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79f45e6113bdac089264a1d6147a8d1dc1fe663ba7cdf33f25adf1d87f968adf
[INFO] running `Command { std: "docker" "start" "-a" "79f45e6113bdac089264a1d6147a8d1dc1fe663ba7cdf33f25adf1d87f968adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79f45e6113bdac089264a1d6147a8d1dc1fe663ba7cdf33f25adf1d87f968adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f45e6113bdac089264a1d6147a8d1dc1fe663ba7cdf33f25adf1d87f968adf", kill_on_drop: false }`
[INFO] [stdout] 79f45e6113bdac089264a1d6147a8d1dc1fe663ba7cdf33f25adf1d87f968adf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6e4e3a0bedb8da19fa49a92b5ab643c72dcf893ed74c3050c75e83758eff3a7
[INFO] running `Command { std: "docker" "start" "-a" "d6e4e3a0bedb8da19fa49a92b5ab643c72dcf893ed74c3050c75e83758eff3a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking serde v1.0.110
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking inv_manager v0.2.0
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking inv v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:449:17
[INFO] [stdout]     |
[INFO] [stdout] 449 |     if let Some(mut item_type) = inventory.item_types.iter_mut().find(|t| t.id == cmd.id) {
[INFO] [stdout]     |                 ----^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:496:17
[INFO] [stdout]     |
[INFO] [stdout] 496 |     if let Some(mut item_instance) = inventory.item_instances.iter_mut().find(|t| t.id == cmd.id) {
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:449:17
[INFO] [stdout]     |
[INFO] [stdout] 449 |     if let Some(mut item_type) = inventory.item_types.iter_mut().find(|t| t.id == cmd.id) {
[INFO] [stdout]     |                 ----^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:496:17
[INFO] [stdout]     |
[INFO] [stdout] 496 |     if let Some(mut item_instance) = inventory.item_instances.iter_mut().find(|t| t.id == cmd.id) {
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.75s
[INFO] running `Command { std: "docker" "inspect" "d6e4e3a0bedb8da19fa49a92b5ab643c72dcf893ed74c3050c75e83758eff3a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e4e3a0bedb8da19fa49a92b5ab643c72dcf893ed74c3050c75e83758eff3a7", kill_on_drop: false }`
[INFO] [stdout] d6e4e3a0bedb8da19fa49a92b5ab643c72dcf893ed74c3050c75e83758eff3a7