[INFO] fetching crate serlp 0.3.1...
[INFO] building serlp-0.3.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate serlp 0.3.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate serlp 0.3.1
[INFO] finished tweaking crates.io crate serlp 0.3.1
[INFO] tweaked toml for crates.io crate serlp 0.3.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serlp 0.3.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cd8fe2908d18f7df964f70b6888ef4b0f4829bc4c32d8c5a1cc8da9c3f9715e
[INFO] running `Command { std: "docker" "start" "-a" "8cd8fe2908d18f7df964f70b6888ef4b0f4829bc4c32d8c5a1cc8da9c3f9715e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cd8fe2908d18f7df964f70b6888ef4b0f4829bc4c32d8c5a1cc8da9c3f9715e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cd8fe2908d18f7df964f70b6888ef4b0f4829bc4c32d8c5a1cc8da9c3f9715e", kill_on_drop: false }`
[INFO] [stdout] 8cd8fe2908d18f7df964f70b6888ef4b0f4829bc4c32d8c5a1cc8da9c3f9715e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6adc996eb58c7c896ee4e0b6553e5c1be92039bd2a5bb95fad0b7b86f739a1f3
[INFO] running `Command { std: "docker" "start" "-a" "6adc996eb58c7c896ee4e0b6553e5c1be92039bd2a5bb95fad0b7b86f739a1f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling serlp v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding or eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/rlp.rs:113:31
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn root(&'de self) -> &RlpNode {
[INFO] [stdout]     |                  ---          ^^^^^^^^
[INFO] [stdout]     |                  |            ||
[INFO] [stdout]     |                  |            |the same lifetime is hidden here
[INFO] [stdout]     |                  |            the same lifetime is elided here
[INFO] [stdout]     |                  the lifetime is named 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: consistently use `'de`
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn root(&'de self) -> &'de RlpNode<'de> {
[INFO] [stdout]     |                                +++        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding or eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/rlp.rs:121:39
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn root_mut(&'de mut self) -> &mut RlpNode {
[INFO] [stdout]     |                      ---              ^^^^^^^^^^^^
[INFO] [stdout]     |                      |                |    |
[INFO] [stdout]     |                      |                |    the same lifetime is hidden here
[INFO] [stdout]     |                      |                the same lifetime is elided here
[INFO] [stdout]     |                      the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'de`
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn root_mut(&'de mut self) -> &'de mut RlpNode<'de> {
[INFO] [stdout]     |                                        +++            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/de.rs:152:21
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn rlp_tree(&self) -> RlpTree {
[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] 152 |     pub fn rlp_tree(&self) -> RlpTree<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.80s
[INFO] running `Command { std: "docker" "inspect" "6adc996eb58c7c896ee4e0b6553e5c1be92039bd2a5bb95fad0b7b86f739a1f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6adc996eb58c7c896ee4e0b6553e5c1be92039bd2a5bb95fad0b7b86f739a1f3", kill_on_drop: false }`
[INFO] [stdout] 6adc996eb58c7c896ee4e0b6553e5c1be92039bd2a5bb95fad0b7b86f739a1f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e9e04397104163295807885965c7533d1faed90814d41ad3da50c6342200935
[INFO] running `Command { std: "docker" "start" "-a" "6e9e04397104163295807885965c7533d1faed90814d41ad3da50c6342200935", kill_on_drop: false }`
[INFO] [stdout] warning: hiding or eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/rlp.rs:113:31
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn root(&'de self) -> &RlpNode {
[INFO] [stdout]     |                  ---          ^^^^^^^^
[INFO] [stdout]     |                  |            ||
[INFO] [stdout]     |                  |            |the same lifetime is hidden here
[INFO] [stdout]     |                  |            the same lifetime is elided here
[INFO] [stdout]     |                  the lifetime is named 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: consistently use `'de`
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn root(&'de self) -> &'de RlpNode<'de> {
[INFO] [stdout]     |                                +++        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding or eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/rlp.rs:121:39
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn root_mut(&'de mut self) -> &mut RlpNode {
[INFO] [stdout]     |                      ---              ^^^^^^^^^^^^
[INFO] [stdout]     |                      |                |    |
[INFO] [stdout]     |                      |                |    the same lifetime is hidden here
[INFO] [stdout]     |                      |                the same lifetime is elided here
[INFO] [stdout]     |                      the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'de`
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn root_mut(&'de mut self) -> &'de mut RlpNode<'de> {
[INFO] [stdout]     |                                        +++            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serlp v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/de.rs:152:21
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn rlp_tree(&self) -> RlpTree {
[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] 152 |     pub fn rlp_tree(&self) -> RlpTree<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Equiv` is never constructed
[INFO] [stdout]    --> src/lib.rs:466:16
[INFO] [stdout]     |
[INFO] [stdout] 466 |         struct Equiv((u32, u64));
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding or eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/rlp.rs:113:31
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn root(&'de self) -> &RlpNode {
[INFO] [stdout]     |                  ---          ^^^^^^^^
[INFO] [stdout]     |                  |            ||
[INFO] [stdout]     |                  |            |the same lifetime is hidden here
[INFO] [stdout]     |                  |            the same lifetime is elided here
[INFO] [stdout]     |                  the lifetime is named 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: consistently use `'de`
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn root(&'de self) -> &'de RlpNode<'de> {
[INFO] [stdout]     |                                +++        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding or eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/rlp.rs:121:39
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn root_mut(&'de mut self) -> &mut RlpNode {
[INFO] [stdout]     |                      ---              ^^^^^^^^^^^^
[INFO] [stdout]     |                      |                |    |
[INFO] [stdout]     |                      |                |    the same lifetime is hidden here
[INFO] [stdout]     |                      |                the same lifetime is elided here
[INFO] [stdout]     |                      the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'de`
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn root_mut(&'de mut self) -> &'de mut RlpNode<'de> {
[INFO] [stdout]     |                                        +++            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/de.rs:152:21
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn rlp_tree(&self) -> RlpTree {
[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] 152 |     pub fn rlp_tree(&self) -> RlpTree<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "6e9e04397104163295807885965c7533d1faed90814d41ad3da50c6342200935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e9e04397104163295807885965c7533d1faed90814d41ad3da50c6342200935", kill_on_drop: false }`
[INFO] [stdout] 6e9e04397104163295807885965c7533d1faed90814d41ad3da50c6342200935
