[INFO] cloning repository https://github.com/blhough/tictac
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blhough/tictac" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblhough%2Ftictac", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblhough%2Ftictac'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0ce2e9d7255cb0749b1c7e167b0c9f31dc13802
[INFO] checking blhough/tictac against try#1c4199da70f816f2239f41c55168ff75a3663718 for 155501-infallible-never-no-reservation
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblhough%2Ftictac" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/blhough/tictac
[INFO] finished tweaking git repo https://github.com/blhough/tictac
[INFO] tweaked toml for git repo https://github.com/blhough/tictac written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/blhough/tictac on toolchain 1c4199da70f816f2239f41c55168ff75a3663718
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/blhough/tictac 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" "+1c4199da70f816f2239f41c55168ff75a3663718" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] help: build is a valid .cargo/config.toml key
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded walkdir v2.3.1
[INFO] [stderr]   Downloaded tinytemplate v1.1.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.8
[INFO] [stderr]   Downloaded criterion v0.3.3
[INFO] [stderr]   Downloaded cast v0.2.3
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.64
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded unicode-width v0.1.8
[INFO] [stderr]   Downloaded oorandom v11.1.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.18
[INFO] [stderr]   Downloaded num-traits v0.2.12
[INFO] [stderr]   Downloaded colored v1.9.3
[INFO] [stderr]   Downloaded js-sys v0.3.41
[INFO] [stderr]   Downloaded rayon-core v1.7.1
[INFO] [stderr]   Downloaded serde v1.0.114
[INFO] [stderr]   Downloaded regex-automata v0.1.9
[INFO] [stderr]   Downloaded bumpalo v3.4.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.64
[INFO] [stderr]   Downloaded rayon v1.3.1
[INFO] [stderr]   Downloaded clap v2.33.1
[INFO] [stderr]   Downloaded syn v1.0.33
[INFO] [stderr]   Downloaded regex v1.3.9
[INFO] [stderr]   Downloaded serde_json v1.0.56
[INFO] [stderr]   Downloaded serde_cbor v0.11.1
[INFO] [stderr]   Downloaded serde_derive v1.0.114
[INFO] [stderr]   Downloaded regex-syntax v0.6.18
[INFO] [stderr]   Downloaded crossbeam-epoch v0.8.2
[INFO] [stderr]   Downloaded half v1.6.0
[INFO] [stderr]   Downloaded bstr v0.2.13
[INFO] [stderr]   Downloaded libc v0.2.71
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.64
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.64
[INFO] [stderr]   Downloaded criterion-plot v0.4.3
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.64
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.3
[INFO] [stderr]   Downloaded memoffset v0.5.4
[INFO] [stderr]   Downloaded hermit-abi v0.1.14
[INFO] [stderr]   Downloaded web-sys v0.3.41
[INFO] [stderr]   Downloaded csv v1.1.3
[INFO] [stderr]   Downloaded plotters v0.2.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e4d94b1df5652b14db7aaf76aa512ceddc28a2be81c2c5a1406220bce1a62da
[INFO] running `Command { std: "docker" "start" "-a" "1e4d94b1df5652b14db7aaf76aa512ceddc28a2be81c2c5a1406220bce1a62da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e4d94b1df5652b14db7aaf76aa512ceddc28a2be81c2c5a1406220bce1a62da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e4d94b1df5652b14db7aaf76aa512ceddc28a2be81c2c5a1406220bce1a62da", kill_on_drop: false }`
[INFO] [stdout] 1e4d94b1df5652b14db7aaf76aa512ceddc28a2be81c2c5a1406220bce1a62da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 783cff0172ef6fb18507c9a8ef830e62d85f6e6c1bde8e326c96cdc30d2cfcbe
[INFO] running `Command { std: "docker" "start" "-a" "783cff0172ef6fb18507c9a8ef830e62d85f6e6c1bde8e326c96cdc30d2cfcbe", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] help: build is a valid .cargo/config.toml key
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking tictac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ai/monte.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 193 |             let mut b = self.nodes.get_mut(&n).unwrap();
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ai/monte.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 193 |             let mut b = self.nodes.get_mut(&n).unwrap();
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.74s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "783cff0172ef6fb18507c9a8ef830e62d85f6e6c1bde8e326c96cdc30d2cfcbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "783cff0172ef6fb18507c9a8ef830e62d85f6e6c1bde8e326c96cdc30d2cfcbe", kill_on_drop: false }`
[INFO] [stdout] 783cff0172ef6fb18507c9a8ef830e62d85f6e6c1bde8e326c96cdc30d2cfcbe
