[INFO] fetching crate marwood 0.5.0...
[INFO] checking marwood-0.5.0 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate marwood 0.5.0 into /workspace/builds/worker-2-tc2/source
[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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate marwood 0.5.0 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08e795a8583595ef3d2efc0ae1f7714a8bb699b8fdd1798000aef3868c73bc7d
[INFO] running `Command { std: "docker" "start" "-a" "08e795a8583595ef3d2efc0ae1f7714a8bb699b8fdd1798000aef3868c73bc7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08e795a8583595ef3d2efc0ae1f7714a8bb699b8fdd1798000aef3868c73bc7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08e795a8583595ef3d2efc0ae1f7714a8bb699b8fdd1798000aef3868c73bc7d", kill_on_drop: false }`
[INFO] [stdout] 08e795a8583595ef3d2efc0ae1f7714a8bb699b8fdd1798000aef3868c73bc7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d02820b11ee92980e20f2a68a700630c8c6c72ecc0acda6a711344d5d36cf2e7
[INFO] running `Command { std: "docker" "start" "-a" "d02820b11ee92980e20f2a68a700630c8c6c72ecc0acda6a711344d5d36cf2e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[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]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking plotters-svg v0.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]     Checking crossbeam-channel v0.5.5
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking plotters v0.3.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking marwood v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> IntoIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> IntoIter<'_> {
[INFO] [stdout]    |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cell.rs:103:26
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn iter_improper(&self) -> IntoIter {
[INFO] [stdout]     |                          ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn iter_improper(&self) -> IntoIter<'_> {
[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: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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vm/environment.rs:224:26
[INFO] [stdout]     |
[INFO] [stdout] 224 |     pub fn iter_bindings(&self) -> std::collections::hash_map::Keys<usize, usize> {
[INFO] [stdout]     |                          ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 224 |     pub fn iter_bindings(&self) -> std::collections::hash_map::Keys<'_, usize, usize> {
[INFO] [stdout]     |                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vm/environment.rs:228:23
[INFO] [stdout]     |
[INFO] [stdout] 228 |     pub fn iter_slots(&self) -> std::slice::Iter<VCell> {
[INFO] [stdout]     |                       ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 228 |     pub fn iter_slots(&self) -> std::slice::Iter<'_, VCell> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> IntoIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> IntoIter<'_> {
[INFO] [stdout]    |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cell.rs:103:26
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn iter_improper(&self) -> IntoIter {
[INFO] [stdout]     |                          ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn iter_improper(&self) -> IntoIter<'_> {
[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: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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vm/environment.rs:224:26
[INFO] [stdout]     |
[INFO] [stdout] 224 |     pub fn iter_bindings(&self) -> std::collections::hash_map::Keys<usize, usize> {
[INFO] [stdout]     |                          ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 224 |     pub fn iter_bindings(&self) -> std::collections::hash_map::Keys<'_, usize, usize> {
[INFO] [stdout]     |                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vm/environment.rs:228:23
[INFO] [stdout]     |
[INFO] [stdout] 228 |     pub fn iter_slots(&self) -> std::slice::Iter<VCell> {
[INFO] [stdout]     |                       ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 228 |     pub fn iter_slots(&self) -> std::slice::Iter<'_, VCell> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.23s
[INFO] running `Command { std: "docker" "inspect" "d02820b11ee92980e20f2a68a700630c8c6c72ecc0acda6a711344d5d36cf2e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d02820b11ee92980e20f2a68a700630c8c6c72ecc0acda6a711344d5d36cf2e7", kill_on_drop: false }`
[INFO] [stdout] d02820b11ee92980e20f2a68a700630c8c6c72ecc0acda6a711344d5d36cf2e7
