[INFO] fetching crate marwood 0.5.0...
[INFO] checking marwood-0.5.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate marwood 0.5.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate marwood 0.5.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate marwood 0.5.0
[INFO] finished tweaking crates.io crate marwood 0.5.0
[INFO] tweaked toml for crates.io crate marwood 0.5.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate marwood 0.5.0 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.40
[INFO] [stderr]   Downloaded plotters-svg v0.3.2
[INFO] [stderr]   Downloaded plotters v0.3.2
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50bff9bd63e3e5e2fbb7df809936d8f8f1125348d26b248baf165fb0a82bba6b
[INFO] running `Command { std: "docker" "start" "-a" "50bff9bd63e3e5e2fbb7df809936d8f8f1125348d26b248baf165fb0a82bba6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50bff9bd63e3e5e2fbb7df809936d8f8f1125348d26b248baf165fb0a82bba6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50bff9bd63e3e5e2fbb7df809936d8f8f1125348d26b248baf165fb0a82bba6b", kill_on_drop: false }`
[INFO] [stdout] 50bff9bd63e3e5e2fbb7df809936d8f8f1125348d26b248baf165fb0a82bba6b
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82c17d64c960581da1481b553690fd848d72eb349cff7ca6e4678f9acf505991
[INFO] running `Command { std: "docker" "start" "-a" "82c17d64c960581da1481b553690fd848d72eb349cff7ca6e4678f9acf505991", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking plotters-svg v0.3.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.5
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking plotters v0.3.2
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking marwood v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/vm/compile.rs:90:41
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if let Cell::Symbol(proc) = proc.deref() {
[INFO] [stdout]    |                                         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `cell::Cell` does not implement `Deref`, so calling `deref` on `&cell::Cell` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 90 -         if let Cell::Symbol(proc) = proc.deref() {
[INFO] [stdout] 90 +         if let Cell::Symbol(proc) = proc {
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `cell::Cell`, implement `Clone` for it
[INFO] [stdout]   --> src/cell.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 + #[derive(Clone)]
[INFO] [stdout] 11 | pub enum Cell {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/vm/compile.rs:172:19
[INFO] [stdout]     |
[INFO] [stdout] 172 |         match proc.deref() {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `cell::Cell` does not implement `Deref`, so calling `deref` on `&cell::Cell` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 172 -         match proc.deref() {
[INFO] [stdout] 172 +         match proc {
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `cell::Cell`, implement `Clone` for it
[INFO] [stdout]    --> src/cell.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub enum Cell {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/vm/compile.rs:90:41
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if let Cell::Symbol(proc) = proc.deref() {
[INFO] [stdout]    |                                         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `cell::Cell` does not implement `Deref`, so calling `deref` on `&cell::Cell` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 90 -         if let Cell::Symbol(proc) = proc.deref() {
[INFO] [stdout] 90 +         if let Cell::Symbol(proc) = proc {
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `cell::Cell`, implement `Clone` for it
[INFO] [stdout]   --> src/cell.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 + #[derive(Clone)]
[INFO] [stdout] 11 | pub enum Cell {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/vm/compile.rs:172:19
[INFO] [stdout]     |
[INFO] [stdout] 172 |         match proc.deref() {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `cell::Cell` does not implement `Deref`, so calling `deref` on `&cell::Cell` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 172 -         match proc.deref() {
[INFO] [stdout] 172 +         match proc {
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `cell::Cell`, implement `Clone` for it
[INFO] [stdout]    --> src/cell.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub enum Cell {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.68s
[INFO] running `Command { std: "docker" "inspect" "82c17d64c960581da1481b553690fd848d72eb349cff7ca6e4678f9acf505991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82c17d64c960581da1481b553690fd848d72eb349cff7ca6e4678f9acf505991", kill_on_drop: false }`
[INFO] [stdout] 82c17d64c960581da1481b553690fd848d72eb349cff7ca6e4678f9acf505991