[INFO] fetching crate ImJson 0.0.1...
[INFO] testing ImJson-0.0.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate ImJson 0.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate ImJson 0.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ImJson 0.0.1
[INFO] tweaked toml for crates.io crate ImJson 0.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ImJson 0.0.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ImJson 0.0.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 540f8d76adeb9fd6e833f7f8fac53980003136423c3aa6b2de795df1fe5d60fd
[INFO] running `Command { std: "docker" "start" "-a" "540f8d76adeb9fd6e833f7f8fac53980003136423c3aa6b2de795df1fe5d60fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "540f8d76adeb9fd6e833f7f8fac53980003136423c3aa6b2de795df1fe5d60fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "540f8d76adeb9fd6e833f7f8fac53980003136423c3aa6b2de795df1fe5d60fd", kill_on_drop: false }`
[INFO] [stdout] 540f8d76adeb9fd6e833f7f8fac53980003136423c3aa6b2de795df1fe5d60fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe333b4f13bad671d31cced013b8bf0a998e648fd1a4c9b6d6e88b1281b8010b
[INFO] running `Command { std: "docker" "start" "-a" "fe333b4f13bad671d31cced013b8bf0a998e648fd1a4c9b6d6e88b1281b8010b", kill_on_drop: false }`
[INFO] [stderr]    Compiling ImJson v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `s` is never read
[INFO] [stdout]  --> lib/serializer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Serializer<'a> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 2 |     s: &'a str,
[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 a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> lib/deserializer.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn new(s: &str) -> Deserializer {
[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] 7 |     pub fn new(s: &str) -> Deserializer<'_> {
[INFO] [stdout]   |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "fe333b4f13bad671d31cced013b8bf0a998e648fd1a4c9b6d6e88b1281b8010b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe333b4f13bad671d31cced013b8bf0a998e648fd1a4c9b6d6e88b1281b8010b", kill_on_drop: false }`
[INFO] [stdout] fe333b4f13bad671d31cced013b8bf0a998e648fd1a4c9b6d6e88b1281b8010b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f5dbbd8d509f731edc100d8fffe44fe93f24c9b84ad66ba8a5d95446ad15fda
[INFO] running `Command { std: "docker" "start" "-a" "5f5dbbd8d509f731edc100d8fffe44fe93f24c9b84ad66ba8a5d95446ad15fda", kill_on_drop: false }`
[INFO] [stderr]    Compiling ImJson v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `s` is never read
[INFO] [stdout]  --> lib/serializer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Serializer<'a> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 2 |     s: &'a str,
[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 a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> lib/deserializer.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn new(s: &str) -> Deserializer {
[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] 7 |     pub fn new(s: &str) -> Deserializer<'_> {
[INFO] [stdout]   |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `s` is never read
[INFO] [stdout]  --> lib/serializer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Serializer<'a> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 2 |     s: &'a str,
[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 a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> lib/deserializer.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn new(s: &str) -> Deserializer {
[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] 7 |     pub fn new(s: &str) -> Deserializer<'_> {
[INFO] [stdout]   |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "5f5dbbd8d509f731edc100d8fffe44fe93f24c9b84ad66ba8a5d95446ad15fda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f5dbbd8d509f731edc100d8fffe44fe93f24c9b84ad66ba8a5d95446ad15fda", kill_on_drop: false }`
[INFO] [stdout] 5f5dbbd8d509f731edc100d8fffe44fe93f24c9b84ad66ba8a5d95446ad15fda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 47de8602a1d6499ac64545a4a006b898cbec40fe29fc46c40bbe8f30f787263d
[INFO] running `Command { std: "docker" "start" "-a" "47de8602a1d6499ac64545a4a006b898cbec40fe29fc46c40bbe8f30f787263d", kill_on_drop: false }`
[INFO] [stderr] warning: field `s` is never read
[INFO] [stderr]  --> lib/serializer.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Serializer<'a> {
[INFO] [stderr]   |            ---------- field in this struct
[INFO] [stderr] 2 |     s: &'a str,
[INFO] [stderr]   |     ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]  --> lib/deserializer.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn new(s: &str) -> Deserializer {
[INFO] [stderr]   |                   ^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]   |                   |
[INFO] [stderr]   |                   the lifetime is elided here
[INFO] [stderr]   |
[INFO] [stderr]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn new(s: &str) -> Deserializer<'_> {
[INFO] [stderr]   |                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `ImJson` (lib) generated 2 warnings (run `cargo fix --lib -p ImJson` to apply 1 suggestion)
[INFO] [stderr] warning: `ImJson` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests lib/im_json.rs (/opt/rustwide/target/debug/deps/im_json-4643eb1752d6c651)
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-17a4e10052c23b03)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test deserializer::t01_list_basic::ok ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests im_json
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "47de8602a1d6499ac64545a4a006b898cbec40fe29fc46c40bbe8f30f787263d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47de8602a1d6499ac64545a4a006b898cbec40fe29fc46c40bbe8f30f787263d", kill_on_drop: false }`
[INFO] [stdout] 47de8602a1d6499ac64545a4a006b898cbec40fe29fc46c40bbe8f30f787263d
